andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2000 Andre Lucas. All rights reserved. |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 3 | * Portions copyright (c) 1998 Todd C. Miller |
| 4 | * Portions copyright (c) 1996 Jason Downs |
| 5 | * Portions copyright (c) 1996 Theo de Raadt |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 17 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 18 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 19 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 21 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 22 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 23 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 25 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 28 | /** |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 29 | ** loginrec.c: platform-independent login recording and lastlog retrieval |
| 30 | **/ |
| 31 | |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 32 | /* |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 33 | * The new login code explained |
| 34 | * ============================ |
| 35 | * |
| 36 | * This code attempts to provide a common interface to login recording |
| 37 | * (utmp and friends) and last login time retrieval. |
| 38 | * |
| 39 | * Its primary means of achieving this is to use 'struct logininfo', a |
| 40 | * union of all the useful fields in the various different types of |
| 41 | * system login record structures one finds on UNIX variants. |
| 42 | * |
| 43 | * We depend on autoconf to define which recording methods are to be |
| 44 | * used, and which fields are contained in the relevant data structures |
| 45 | * on the local system. Many C preprocessor symbols affect which code |
| 46 | * gets compiled here. |
| 47 | * |
| 48 | * The code is designed to make it easy to modify a particular |
| 49 | * recording method, without affecting other methods nor requiring so |
| 50 | * many nested conditional compilation blocks as were commonplace in |
| 51 | * the old code. |
| 52 | * |
| 53 | * For login recording, we try to use the local system's libraries as |
| 54 | * these are clearly most likely to work correctly. For utmp systems |
| 55 | * this usually means login() and logout() or setutent() etc., probably |
| 56 | * in libutil, along with logwtmp() etc. On these systems, we fall back |
| 57 | * to writing the files directly if we have to, though this method |
| 58 | * requires very thorough testing so we do not corrupt local auditing |
| 59 | * information. These files and their access methods are very system |
| 60 | * specific indeed. |
| 61 | * |
| 62 | * For utmpx systems, the corresponding library functions are |
| 63 | * setutxent() etc. To the author's knowledge, all utmpx systems have |
| 64 | * these library functions and so no direct write is attempted. If such |
| 65 | * a system exists and needs support, direct analogues of the [uw]tmp |
| 66 | * code should suffice. |
| 67 | * |
| 68 | * Retrieving the time of last login ('lastlog') is in some ways even |
| 69 | * more problemmatic than login recording. Some systems provide a |
| 70 | * simple table of all users which we seek based on uid and retrieve a |
| 71 | * relatively standard structure. Others record the same information in |
| 72 | * a directory with a separate file, and others don't record the |
| 73 | * information separately at all. For systems in the latter category, |
| 74 | * we look backwards in the wtmp or wtmpx file for the last login entry |
| 75 | * for our user. Naturally this is slower and on busy systems could |
| 76 | * incur a significant performance penalty. |
| 77 | * |
| 78 | * Calling the new code |
| 79 | * -------------------- |
| 80 | * |
| 81 | * In OpenSSH all login recording and retrieval is performed in |
| 82 | * login.c. Here you'll find working examples. Also, in the logintest.c |
| 83 | * program there are more examples. |
| 84 | * |
| 85 | * Internal handler calling method |
| 86 | * ------------------------------- |
| 87 | * |
| 88 | * When a call is made to login_login() or login_logout(), both |
| 89 | * routines set a struct logininfo flag defining which action (log in, |
| 90 | * or log out) is to be taken. They both then call login_write(), which |
| 91 | * calls whichever of the many structure-specific handlers autoconf |
| 92 | * selects for the local system. |
| 93 | * |
| 94 | * The handlers themselves handle system data structure specifics. Both |
| 95 | * struct utmp and struct utmpx have utility functions (see |
| 96 | * construct_utmp*()) to try to make it simpler to add extra systems |
| 97 | * that introduce new features to either structure. |
| 98 | * |
| 99 | * While it may seem terribly wasteful to replicate so much similar |
| 100 | * code for each method, experience has shown that maintaining code to |
| 101 | * write both struct utmp and utmpx in one function, whilst maintaining |
| 102 | * support for all systems whether they have library support or not, is |
| 103 | * a difficult and time-consuming task. |
| 104 | * |
| 105 | * Lastlog support proceeds similarly. Functions login_get_lastlog() |
| 106 | * (and its OpenSSH-tuned friend login_get_lastlog_time()) call |
| 107 | * getlast_entry(), which tries one of three methods to find the last |
| 108 | * login time. It uses local system lastlog support if it can, |
| 109 | * otherwise it tries wtmp or wtmpx before giving up and returning 0, |
| 110 | * meaning "tilt". |
| 111 | * |
| 112 | * Maintenance |
| 113 | * ----------- |
| 114 | * |
| 115 | * In many cases it's possible to tweak autoconf to select the correct |
| 116 | * methods for a particular platform, either by improving the detection |
| 117 | * code (best), or by presetting DISABLE_<method> or CONF_<method>_FILE |
| 118 | * symbols for the platform. |
| 119 | * |
| 120 | * Use logintest to check which symbols are defined before modifying |
| 121 | * configure.ac and loginrec.c. (You have to build logintest yourself |
| 122 | * with 'make logintest' as it's not built by default.) |
| 123 | * |
| 124 | * Otherwise, patches to the specific method(s) are very helpful! |
| 125 | */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 126 | |
| 127 | #include "includes.h" |
| 128 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 129 | #include "ssh.h" |
| 130 | #include "xmalloc.h" |
| 131 | #include "loginrec.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 132 | #include "log.h" |
| 133 | #include "atomicio.h" |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 134 | |
Ben Lindstrom | dcca981 | 2000-11-10 03:28:31 +0000 | [diff] [blame] | 135 | #ifdef HAVE_UTIL_H |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 136 | # include <util.h> |
Ben Lindstrom | dcca981 | 2000-11-10 03:28:31 +0000 | [diff] [blame] | 137 | #endif |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 138 | |
Ben Lindstrom | e2fb8d3 | 2000-12-28 00:07:07 +0000 | [diff] [blame] | 139 | #ifdef HAVE_LIBUTIL_H |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 140 | # include <libutil.h> |
Ben Lindstrom | e2fb8d3 | 2000-12-28 00:07:07 +0000 | [diff] [blame] | 141 | #endif |
| 142 | |
Damien Miller | b0aae33 | 2004-09-12 15:26:00 +1000 | [diff] [blame^] | 143 | RCSID("$Id: loginrec.c,v 1.62 2004/09/12 05:26:01 djm Exp $"); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 144 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 145 | /** |
| 146 | ** prototypes for helper functions in this file |
| 147 | **/ |
| 148 | |
| 149 | #if HAVE_UTMP_H |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 150 | void set_utmp_time(struct logininfo *li, struct utmp *ut); |
| 151 | void construct_utmp(struct logininfo *li, struct utmp *ut); |
| 152 | #endif |
| 153 | |
| 154 | #ifdef HAVE_UTMPX_H |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 155 | void set_utmpx_time(struct logininfo *li, struct utmpx *ut); |
| 156 | void construct_utmpx(struct logininfo *li, struct utmpx *ut); |
| 157 | #endif |
| 158 | |
| 159 | int utmp_write_entry(struct logininfo *li); |
| 160 | int utmpx_write_entry(struct logininfo *li); |
| 161 | int wtmp_write_entry(struct logininfo *li); |
| 162 | int wtmpx_write_entry(struct logininfo *li); |
| 163 | int lastlog_write_entry(struct logininfo *li); |
| 164 | int syslogin_write_entry(struct logininfo *li); |
| 165 | |
| 166 | int getlast_entry(struct logininfo *li); |
| 167 | int lastlog_get_entry(struct logininfo *li); |
| 168 | int wtmp_get_entry(struct logininfo *li); |
| 169 | int wtmpx_get_entry(struct logininfo *li); |
| 170 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 171 | /* pick the shortest string */ |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 172 | #define MIN_SIZEOF(s1,s2) (sizeof(s1) < sizeof(s2) ? sizeof(s1) : sizeof(s2)) |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 173 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 174 | /** |
| 175 | ** platform-independent login functions |
| 176 | **/ |
| 177 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 178 | /* |
| 179 | * login_login(struct logininfo *) - Record a login |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 180 | * |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 181 | * Call with a pointer to a struct logininfo initialised with |
| 182 | * login_init_entry() or login_alloc_entry() |
| 183 | * |
| 184 | * Returns: |
| 185 | * >0 if successful |
| 186 | * 0 on failure (will use OpenSSH's logging facilities for diagnostics) |
| 187 | */ |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 188 | int |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 189 | login_login(struct logininfo *li) |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 190 | { |
| 191 | li->type = LTYPE_LOGIN; |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 192 | return (login_write(li)); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 193 | } |
| 194 | |
| 195 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 196 | /* |
| 197 | * login_logout(struct logininfo *) - Record a logout |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 198 | * |
| 199 | * Call as with login_login() |
| 200 | * |
| 201 | * Returns: |
| 202 | * >0 if successful |
| 203 | * 0 on failure (will use OpenSSH's logging facilities for diagnostics) |
| 204 | */ |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 205 | int |
| 206 | login_logout(struct logininfo *li) |
| 207 | { |
| 208 | li->type = LTYPE_LOGOUT; |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 209 | return (login_write(li)); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 210 | } |
| 211 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 212 | /* |
| 213 | * login_get_lastlog_time(int) - Retrieve the last login time |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 214 | * |
| 215 | * Retrieve the last login time for the given uid. Will try to use the |
| 216 | * system lastlog facilities if they are available, but will fall back |
| 217 | * to looking in wtmp/wtmpx if necessary |
| 218 | * |
| 219 | * Returns: |
| 220 | * 0 on failure, or if user has never logged in |
| 221 | * Time in seconds from the epoch if successful |
| 222 | * |
| 223 | * Useful preprocessor symbols: |
| 224 | * DISABLE_LASTLOG: If set, *never* even try to retrieve lastlog |
| 225 | * info |
| 226 | * USE_LASTLOG: If set, indicates the presence of system lastlog |
| 227 | * facilities. If this and DISABLE_LASTLOG are not set, |
| 228 | * try to retrieve lastlog information from wtmp/wtmpx. |
| 229 | */ |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 230 | unsigned int |
| 231 | login_get_lastlog_time(const int uid) |
| 232 | { |
| 233 | struct logininfo li; |
| 234 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 235 | if (login_get_lastlog(&li, uid)) |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 236 | return (li.tv_sec); |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 237 | else |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 238 | return (0); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 239 | } |
| 240 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 241 | /* |
| 242 | * login_get_lastlog(struct logininfo *, int) - Retrieve a lastlog entry |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 243 | * |
| 244 | * Retrieve a logininfo structure populated (only partially) with |
| 245 | * information from the system lastlog data, or from wtmp/wtmpx if no |
| 246 | * system lastlog information exists. |
| 247 | * |
| 248 | * Note this routine must be given a pre-allocated logininfo. |
| 249 | * |
| 250 | * Returns: |
| 251 | * >0: A pointer to your struct logininfo if successful |
| 252 | * 0 on failure (will use OpenSSH's logging facilities for diagnostics) |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 253 | */ |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 254 | struct logininfo * |
| 255 | login_get_lastlog(struct logininfo *li, const int uid) |
| 256 | { |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 257 | struct passwd *pw; |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 258 | |
Damien Miller | 348c9b7 | 2000-08-15 10:01:22 +1000 | [diff] [blame] | 259 | memset(li, '\0', sizeof(*li)); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 260 | li->uid = uid; |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 261 | |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 262 | /* |
Damien Miller | 53c5d46 | 2000-06-28 00:50:50 +1000 | [diff] [blame] | 263 | * If we don't have a 'real' lastlog, we need the username to |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 264 | * reliably search wtmp(x) for the last login (see |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 265 | * wtmp_get_entry().) |
Damien Miller | 53c5d46 | 2000-06-28 00:50:50 +1000 | [diff] [blame] | 266 | */ |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 267 | pw = getpwuid(uid); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 268 | if (pw == NULL) |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 269 | fatal("%s: Cannot find account for uid %i", __func__, uid); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 270 | |
andre | 98cabe0 | 2000-06-19 09:11:30 +0000 | [diff] [blame] | 271 | /* No MIN_SIZEOF here - we absolutely *must not* truncate the |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 272 | * username (XXX - so check for trunc!) */ |
Damien Miller | f8af08d | 2000-06-27 09:40:06 +1000 | [diff] [blame] | 273 | strlcpy(li->username, pw->pw_name, sizeof(li->username)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 274 | |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 275 | if (getlast_entry(li)) |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 276 | return (li); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 277 | else |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 278 | return (NULL); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 282 | /* |
| 283 | * login_alloc_entry(int, char*, char*, char*) - Allocate and initialise |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 284 | * a logininfo structure |
| 285 | * |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 286 | * This function creates a new struct logininfo, a data structure |
| 287 | * meant to carry the information required to portably record login info. |
| 288 | * |
| 289 | * Returns a pointer to a newly created struct logininfo. If memory |
| 290 | * allocation fails, the program halts. |
| 291 | */ |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 292 | struct |
| 293 | logininfo *login_alloc_entry(int pid, const char *username, |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 294 | const char *hostname, const char *line) |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 295 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 296 | struct logininfo *newli; |
| 297 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 298 | newli = xmalloc(sizeof(*newli)); |
| 299 | login_init_entry(newli, pid, username, hostname, line); |
| 300 | return (newli); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 301 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 302 | |
| 303 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 304 | /* login_free_entry(struct logininfo *) - free struct memory */ |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 305 | void |
| 306 | login_free_entry(struct logininfo *li) |
| 307 | { |
| 308 | xfree(li); |
| 309 | } |
| 310 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 311 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 312 | /* login_init_entry(struct logininfo *, int, char*, char*, char*) |
| 313 | * - initialise a struct logininfo |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 314 | * |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 315 | * Populates a new struct logininfo, a data structure meant to carry |
| 316 | * the information required to portably record login info. |
| 317 | * |
| 318 | * Returns: 1 |
| 319 | */ |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 320 | int |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 321 | login_init_entry(struct logininfo *li, int pid, const char *username, |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 322 | const char *hostname, const char *line) |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 323 | { |
Damien Miller | f8af08d | 2000-06-27 09:40:06 +1000 | [diff] [blame] | 324 | struct passwd *pw; |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 325 | |
Damien Miller | 348c9b7 | 2000-08-15 10:01:22 +1000 | [diff] [blame] | 326 | memset(li, 0, sizeof(*li)); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 327 | |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 328 | li->pid = pid; |
Damien Miller | f8af08d | 2000-06-27 09:40:06 +1000 | [diff] [blame] | 329 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 330 | /* set the line information */ |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 331 | if (line) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 332 | line_fullname(li->line, line, sizeof(li->line)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 333 | |
Damien Miller | f8af08d | 2000-06-27 09:40:06 +1000 | [diff] [blame] | 334 | if (username) { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 335 | strlcpy(li->username, username, sizeof(li->username)); |
Damien Miller | f8af08d | 2000-06-27 09:40:06 +1000 | [diff] [blame] | 336 | pw = getpwnam(li->username); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 337 | if (pw == NULL) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 338 | fatal("%s: Cannot find user \"%s\"", __func__, |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 339 | li->username); |
| 340 | } |
Damien Miller | f8af08d | 2000-06-27 09:40:06 +1000 | [diff] [blame] | 341 | li->uid = pw->pw_uid; |
| 342 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 343 | |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 344 | if (hostname) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 345 | strlcpy(li->hostname, hostname, sizeof(li->hostname)); |
Damien Miller | f8af08d | 2000-06-27 09:40:06 +1000 | [diff] [blame] | 346 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 347 | return (1); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 348 | } |
| 349 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 350 | /* |
| 351 | * login_set_current_time(struct logininfo *) - set the current time |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 352 | * |
| 353 | * Set the current time in a logininfo structure. This function is |
| 354 | * meant to eliminate the need to deal with system dependencies for |
| 355 | * time handling. |
| 356 | */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 357 | void |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 358 | login_set_current_time(struct logininfo *li) |
| 359 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 360 | struct timeval tv; |
| 361 | |
| 362 | gettimeofday(&tv, NULL); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 363 | |
Damien Miller | f8af08d | 2000-06-27 09:40:06 +1000 | [diff] [blame] | 364 | li->tv_sec = tv.tv_sec; |
| 365 | li->tv_usec = tv.tv_usec; |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 366 | } |
| 367 | |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 368 | /* copy a sockaddr_* into our logininfo */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 369 | void |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 370 | login_set_addr(struct logininfo *li, const struct sockaddr *sa, |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 371 | const unsigned int sa_size) |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 372 | { |
| 373 | unsigned int bufsize = sa_size; |
| 374 | |
| 375 | /* make sure we don't overrun our union */ |
| 376 | if (sizeof(li->hostaddr) < sa_size) |
| 377 | bufsize = sizeof(li->hostaddr); |
| 378 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 379 | memcpy(&li->hostaddr.sa, sa, bufsize); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 380 | } |
| 381 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 382 | |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 383 | /** |
| 384 | ** login_write: Call low-level recording functions based on autoconf |
| 385 | ** results |
| 386 | **/ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 387 | int |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 388 | login_write(struct logininfo *li) |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 389 | { |
Damien Miller | bac2d8a | 2000-09-05 16:13:06 +1100 | [diff] [blame] | 390 | #ifndef HAVE_CYGWIN |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 391 | if (geteuid() != 0) { |
| 392 | logit("Attempt to write login records by non-root user (aborting)"); |
| 393 | return (1); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 394 | } |
Damien Miller | bac2d8a | 2000-09-05 16:13:06 +1100 | [diff] [blame] | 395 | #endif |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 396 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 397 | /* set the timestamp */ |
| 398 | login_set_current_time(li); |
| 399 | #ifdef USE_LOGIN |
| 400 | syslogin_write_entry(li); |
| 401 | #endif |
| 402 | #ifdef USE_LASTLOG |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 403 | if (li->type == LTYPE_LOGIN) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 404 | lastlog_write_entry(li); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 405 | #endif |
| 406 | #ifdef USE_UTMP |
| 407 | utmp_write_entry(li); |
| 408 | #endif |
| 409 | #ifdef USE_WTMP |
| 410 | wtmp_write_entry(li); |
| 411 | #endif |
| 412 | #ifdef USE_UTMPX |
| 413 | utmpx_write_entry(li); |
| 414 | #endif |
| 415 | #ifdef USE_WTMPX |
| 416 | wtmpx_write_entry(li); |
| 417 | #endif |
Darren Tucker | 397a2f2 | 2004-08-15 00:09:11 +1000 | [diff] [blame] | 418 | #ifdef CUSTOM_SYS_AUTH_RECORD_LOGIN |
| 419 | if (li->type == LTYPE_LOGIN && |
| 420 | !sys_auth_record_login(li->username,li->hostname,li->line)) |
| 421 | logit("Writing login record failed for %s", li->username); |
| 422 | #endif |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 423 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 424 | } |
| 425 | |
Ben Lindstrom | 97c677d | 2001-05-08 20:33:05 +0000 | [diff] [blame] | 426 | #ifdef LOGIN_NEEDS_UTMPX |
| 427 | int |
| 428 | login_utmp_only(struct logininfo *li) |
| 429 | { |
Damien Miller | a8e06ce | 2003-11-21 23:48:55 +1100 | [diff] [blame] | 430 | li->type = LTYPE_LOGIN; |
Ben Lindstrom | 9197c59 | 2001-10-26 15:56:55 +0000 | [diff] [blame] | 431 | login_set_current_time(li); |
Ben Lindstrom | 97c677d | 2001-05-08 20:33:05 +0000 | [diff] [blame] | 432 | # ifdef USE_UTMP |
| 433 | utmp_write_entry(li); |
| 434 | # endif |
| 435 | # ifdef USE_WTMP |
| 436 | wtmp_write_entry(li); |
| 437 | # endif |
| 438 | # ifdef USE_UTMPX |
| 439 | utmpx_write_entry(li); |
| 440 | # endif |
| 441 | # ifdef USE_WTMPX |
| 442 | wtmpx_write_entry(li); |
| 443 | # endif |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 444 | return (0); |
Ben Lindstrom | 97c677d | 2001-05-08 20:33:05 +0000 | [diff] [blame] | 445 | } |
| 446 | #endif |
| 447 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 448 | /** |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 449 | ** getlast_entry: Call low-level functions to retrieve the last login |
| 450 | ** time. |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 451 | **/ |
| 452 | |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 453 | /* take the uid in li and return the last login time */ |
| 454 | int |
| 455 | getlast_entry(struct logininfo *li) |
| 456 | { |
| 457 | #ifdef USE_LASTLOG |
Damien Miller | 53c5d46 | 2000-06-28 00:50:50 +1000 | [diff] [blame] | 458 | return(lastlog_get_entry(li)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 459 | #else /* !USE_LASTLOG */ |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 460 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 461 | #if defined(DISABLE_LASTLOG) |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 462 | /* On some systems we shouldn't even try to obtain last login |
andre | ecaabf1 | 2000-06-12 22:21:44 +0000 | [diff] [blame] | 463 | * time, e.g. AIX */ |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 464 | return (0); |
| 465 | # elif defined(USE_WTMP) && \ |
| 466 | (defined(HAVE_TIME_IN_UTMP) || defined(HAVE_TV_IN_UTMP)) |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 467 | /* retrieve last login time from utmp */ |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 468 | return (wtmp_get_entry(li)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 469 | # elif defined(USE_WTMPX) && \ |
| 470 | (defined(HAVE_TIME_IN_UTMPX) || defined(HAVE_TV_IN_UTMPX)) |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 471 | /* If wtmp isn't available, try wtmpx */ |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 472 | return (wtmpx_get_entry(li)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 473 | # else |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 474 | /* Give up: No means of retrieving last login time */ |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 475 | return (0); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 476 | # endif /* DISABLE_LASTLOG */ |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 477 | #endif /* USE_LASTLOG */ |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 478 | } |
| 479 | |
| 480 | |
| 481 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 482 | /* |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 483 | * 'line' string utility functions |
| 484 | * |
| 485 | * These functions process the 'line' string into one of three forms: |
| 486 | * |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 487 | * 1. The full filename (including '/dev') |
| 488 | * 2. The stripped name (excluding '/dev') |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 489 | * 3. The abbreviated name (e.g. /dev/ttyp00 -> yp00 |
| 490 | * /dev/pts/1 -> ts/1 ) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 491 | * |
| 492 | * Form 3 is used on some systems to identify a .tmp.? entry when |
| 493 | * attempting to remove it. Typically both addition and removal is |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 494 | * performed by one application - say, sshd - so as long as the choice |
| 495 | * uniquely identifies a terminal it's ok. |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 496 | */ |
| 497 | |
| 498 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 499 | /* |
| 500 | * line_fullname(): add the leading '/dev/' if it doesn't exist make |
| 501 | * sure dst has enough space, if not just copy src (ugh) |
| 502 | */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 503 | char * |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 504 | line_fullname(char *dst, const char *src, int dstsize) |
| 505 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 506 | memset(dst, '\0', dstsize); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 507 | if ((strncmp(src, "/dev/", 5) == 0) || (dstsize < (strlen(src) + 5))) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 508 | strlcpy(dst, src, dstsize); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 509 | else { |
Damien Miller | 1a13225 | 2000-06-13 21:23:17 +1000 | [diff] [blame] | 510 | strlcpy(dst, "/dev/", dstsize); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 511 | strlcat(dst, src, dstsize); |
| 512 | } |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 513 | return (dst); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 514 | } |
| 515 | |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 516 | /* line_stripname(): strip the leading '/dev' if it exists, return dst */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 517 | char * |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 518 | line_stripname(char *dst, const char *src, int dstsize) |
| 519 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 520 | memset(dst, '\0', dstsize); |
| 521 | if (strncmp(src, "/dev/", 5) == 0) |
Damien Miller | f5a8147 | 2000-09-30 21:34:44 +1100 | [diff] [blame] | 522 | strlcpy(dst, src + 5, dstsize); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 523 | else |
| 524 | strlcpy(dst, src, dstsize); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 525 | return (dst); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 526 | } |
| 527 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 528 | /* |
| 529 | * line_abbrevname(): Return the abbreviated (usually four-character) |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 530 | * form of the line (Just use the last <dstsize> characters of the |
| 531 | * full name.) |
| 532 | * |
| 533 | * NOTE: use strncpy because we do NOT necessarily want zero |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 534 | * termination |
| 535 | */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 536 | char * |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 537 | line_abbrevname(char *dst, const char *src, int dstsize) |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 538 | { |
| 539 | size_t len; |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 540 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 541 | memset(dst, '\0', dstsize); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 542 | |
Damien Miller | 8e81ed3 | 2000-07-01 13:17:42 +1000 | [diff] [blame] | 543 | /* Always skip prefix if present */ |
| 544 | if (strncmp(src, "/dev/", 5) == 0) |
| 545 | src += 5; |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 546 | |
Damien Miller | f1b9d11 | 2002-04-23 23:09:19 +1000 | [diff] [blame] | 547 | #ifdef WITH_ABBREV_NO_TTY |
| 548 | if (strncmp(src, "tty", 3) == 0) |
| 549 | src += 3; |
| 550 | #endif |
| 551 | |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 552 | len = strlen(src); |
| 553 | |
Damien Miller | 8e81ed3 | 2000-07-01 13:17:42 +1000 | [diff] [blame] | 554 | if (len > 0) { |
| 555 | if (((int)len - dstsize) > 0) |
| 556 | src += ((int)len - dstsize); |
| 557 | |
| 558 | /* note: _don't_ change this to strlcpy */ |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 559 | strncpy(dst, src, (size_t)dstsize); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 560 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 561 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 562 | return (dst); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 563 | } |
| 564 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 565 | /** |
| 566 | ** utmp utility functions |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 567 | ** |
| 568 | ** These functions manipulate struct utmp, taking system differences |
| 569 | ** into account. |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 570 | **/ |
| 571 | |
| 572 | #if defined(USE_UTMP) || defined (USE_WTMP) || defined (USE_LOGIN) |
| 573 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 574 | /* build the utmp structure */ |
| 575 | void |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 576 | set_utmp_time(struct logininfo *li, struct utmp *ut) |
| 577 | { |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 578 | # if defined(HAVE_TV_IN_UTMP) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 579 | ut->ut_tv.tv_sec = li->tv_sec; |
| 580 | ut->ut_tv.tv_usec = li->tv_usec; |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 581 | # elif defined(HAVE_TIME_IN_UTMP) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 582 | ut->ut_time = li->tv_sec; |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 583 | # endif |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 584 | } |
| 585 | |
| 586 | void |
| 587 | construct_utmp(struct logininfo *li, |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 588 | struct utmp *ut) |
| 589 | { |
Damien Miller | 02e16ad | 2003-01-03 14:42:27 +1100 | [diff] [blame] | 590 | # ifdef HAVE_ADDR_V6_IN_UTMP |
| 591 | struct sockaddr_in6 *sa6; |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 592 | # endif |
| 593 | |
Damien Miller | 348c9b7 | 2000-08-15 10:01:22 +1000 | [diff] [blame] | 594 | memset(ut, '\0', sizeof(*ut)); |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 595 | |
| 596 | /* First fill out fields used for both logins and logouts */ |
| 597 | |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 598 | # ifdef HAVE_ID_IN_UTMP |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 599 | line_abbrevname(ut->ut_id, li->line, sizeof(ut->ut_id)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 600 | # endif |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 601 | |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 602 | # ifdef HAVE_TYPE_IN_UTMP |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 603 | /* This is done here to keep utmp constants out of struct logininfo */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 604 | switch (li->type) { |
| 605 | case LTYPE_LOGIN: |
| 606 | ut->ut_type = USER_PROCESS; |
Tim Rice | 81ed518 | 2002-09-25 17:38:46 -0700 | [diff] [blame] | 607 | #ifdef _UNICOS |
Ben Lindstrom | 6db66ff | 2001-08-06 23:29:16 +0000 | [diff] [blame] | 608 | cray_set_tmpdir(ut); |
| 609 | #endif |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 610 | break; |
| 611 | case LTYPE_LOGOUT: |
| 612 | ut->ut_type = DEAD_PROCESS; |
Tim Rice | 81ed518 | 2002-09-25 17:38:46 -0700 | [diff] [blame] | 613 | #ifdef _UNICOS |
Ben Lindstrom | 6db66ff | 2001-08-06 23:29:16 +0000 | [diff] [blame] | 614 | cray_retain_utmp(ut, li->pid); |
| 615 | #endif |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 616 | break; |
| 617 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 618 | # endif |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 619 | set_utmp_time(li, ut); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 620 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 621 | line_stripname(ut->ut_line, li->line, sizeof(ut->ut_line)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 622 | |
| 623 | # ifdef HAVE_PID_IN_UTMP |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 624 | ut->ut_pid = li->pid; |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 625 | # endif |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 626 | |
| 627 | /* If we're logging out, leave all other fields blank */ |
| 628 | if (li->type == LTYPE_LOGOUT) |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 629 | return; |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 630 | |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 631 | /* |
| 632 | * These fields are only used when logging in, and are blank |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 633 | * for logouts. |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 634 | */ |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 635 | |
| 636 | /* Use strncpy because we don't necessarily want null termination */ |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 637 | strncpy(ut->ut_name, li->username, |
| 638 | MIN_SIZEOF(ut->ut_name, li->username)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 639 | # ifdef HAVE_HOST_IN_UTMP |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 640 | strncpy(ut->ut_host, li->hostname, |
| 641 | MIN_SIZEOF(ut->ut_host, li->hostname)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 642 | # endif |
| 643 | # ifdef HAVE_ADDR_IN_UTMP |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 644 | /* this is just a 32-bit IP address */ |
| 645 | if (li->hostaddr.sa.sa_family == AF_INET) |
| 646 | ut->ut_addr = li->hostaddr.sa_in.sin_addr.s_addr; |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 647 | # endif |
Damien Miller | 02e16ad | 2003-01-03 14:42:27 +1100 | [diff] [blame] | 648 | # ifdef HAVE_ADDR_V6_IN_UTMP |
| 649 | /* this is just a 128-bit IPv6 address */ |
| 650 | if (li->hostaddr.sa.sa_family == AF_INET6) { |
| 651 | sa6 = ((struct sockaddr_in6 *)&li->hostaddr.sa); |
| 652 | memcpy(ut->ut_addr_v6, sa6->sin6_addr.s6_addr, 16); |
| 653 | if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) { |
| 654 | ut->ut_addr_v6[0] = ut->ut_addr_v6[3]; |
| 655 | ut->ut_addr_v6[1] = 0; |
| 656 | ut->ut_addr_v6[2] = 0; |
| 657 | ut->ut_addr_v6[3] = 0; |
| 658 | } |
| 659 | } |
| 660 | # endif |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 661 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 662 | #endif /* USE_UTMP || USE_WTMP || USE_LOGIN */ |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 663 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 664 | /** |
| 665 | ** utmpx utility functions |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 666 | ** |
| 667 | ** These functions manipulate struct utmpx, accounting for system |
| 668 | ** variations. |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 669 | **/ |
| 670 | |
| 671 | #if defined(USE_UTMPX) || defined (USE_WTMPX) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 672 | /* build the utmpx structure */ |
| 673 | void |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 674 | set_utmpx_time(struct logininfo *li, struct utmpx *utx) |
| 675 | { |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 676 | # if defined(HAVE_TV_IN_UTMPX) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 677 | utx->ut_tv.tv_sec = li->tv_sec; |
| 678 | utx->ut_tv.tv_usec = li->tv_usec; |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 679 | # elif defined(HAVE_TIME_IN_UTMPX) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 680 | utx->ut_time = li->tv_sec; |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 681 | # endif |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 682 | } |
| 683 | |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 684 | void |
| 685 | construct_utmpx(struct logininfo *li, struct utmpx *utx) |
| 686 | { |
Damien Miller | 02e16ad | 2003-01-03 14:42:27 +1100 | [diff] [blame] | 687 | # ifdef HAVE_ADDR_V6_IN_UTMP |
| 688 | struct sockaddr_in6 *sa6; |
| 689 | # endif |
Damien Miller | 348c9b7 | 2000-08-15 10:01:22 +1000 | [diff] [blame] | 690 | memset(utx, '\0', sizeof(*utx)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 691 | |
Damien Miller | 8e81ed3 | 2000-07-01 13:17:42 +1000 | [diff] [blame] | 692 | # ifdef HAVE_ID_IN_UTMPX |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 693 | line_abbrevname(utx->ut_id, li->line, sizeof(utx->ut_id)); |
Damien Miller | 8e81ed3 | 2000-07-01 13:17:42 +1000 | [diff] [blame] | 694 | # endif |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 695 | |
| 696 | /* this is done here to keep utmp constants out of loginrec.h */ |
| 697 | switch (li->type) { |
| 698 | case LTYPE_LOGIN: |
| 699 | utx->ut_type = USER_PROCESS; |
| 700 | break; |
| 701 | case LTYPE_LOGOUT: |
| 702 | utx->ut_type = DEAD_PROCESS; |
| 703 | break; |
| 704 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 705 | line_stripname(utx->ut_line, li->line, sizeof(utx->ut_line)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 706 | set_utmpx_time(li, utx); |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 707 | utx->ut_pid = li->pid; |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 708 | |
Tim Rice | e06ae4a | 2002-02-24 17:56:46 -0800 | [diff] [blame] | 709 | /* strncpy(): Don't necessarily want null termination */ |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 710 | strncpy(utx->ut_name, li->username, |
| 711 | MIN_SIZEOF(utx->ut_name, li->username)); |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 712 | |
| 713 | if (li->type == LTYPE_LOGOUT) |
| 714 | return; |
| 715 | |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 716 | /* |
| 717 | * These fields are only used when logging in, and are blank |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 718 | * for logouts. |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 719 | */ |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 720 | |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 721 | # ifdef HAVE_HOST_IN_UTMPX |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 722 | strncpy(utx->ut_host, li->hostname, |
| 723 | MIN_SIZEOF(utx->ut_host, li->hostname)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 724 | # endif |
| 725 | # ifdef HAVE_ADDR_IN_UTMPX |
Damien Miller | d6f204d | 2000-09-23 13:57:27 +1100 | [diff] [blame] | 726 | /* this is just a 32-bit IP address */ |
| 727 | if (li->hostaddr.sa.sa_family == AF_INET) |
| 728 | utx->ut_addr = li->hostaddr.sa_in.sin_addr.s_addr; |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 729 | # endif |
Damien Miller | 02e16ad | 2003-01-03 14:42:27 +1100 | [diff] [blame] | 730 | # ifdef HAVE_ADDR_V6_IN_UTMP |
| 731 | /* this is just a 128-bit IPv6 address */ |
| 732 | if (li->hostaddr.sa.sa_family == AF_INET6) { |
| 733 | sa6 = ((struct sockaddr_in6 *)&li->hostaddr.sa); |
| 734 | memcpy(ut->ut_addr_v6, sa6->sin6_addr.s6_addr, 16); |
| 735 | if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) { |
| 736 | ut->ut_addr_v6[0] = ut->ut_addr_v6[3]; |
| 737 | ut->ut_addr_v6[1] = 0; |
| 738 | ut->ut_addr_v6[2] = 0; |
| 739 | ut->ut_addr_v6[3] = 0; |
| 740 | } |
| 741 | } |
| 742 | # endif |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 743 | # ifdef HAVE_SYSLEN_IN_UTMPX |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 744 | /* ut_syslen is the length of the utx_host string */ |
| 745 | utx->ut_syslen = MIN(strlen(li->hostname), sizeof(utx->ut_host)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 746 | # endif |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 747 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 748 | #endif /* USE_UTMPX || USE_WTMPX */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 749 | |
| 750 | /** |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 751 | ** Low-level utmp functions |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 752 | **/ |
| 753 | |
| 754 | /* FIXME: (ATL) utmp_write_direct needs testing */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 755 | #ifdef USE_UTMP |
| 756 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 757 | /* if we can, use pututline() etc. */ |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 758 | # if !defined(DISABLE_PUTUTLINE) && defined(HAVE_SETUTENT) && \ |
| 759 | defined(HAVE_PUTUTLINE) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 760 | # define UTMP_USE_LIBRARY |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 761 | # endif |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 762 | |
| 763 | |
| 764 | /* write a utmp entry with the system's help (pututline() and pals) */ |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 765 | # ifdef UTMP_USE_LIBRARY |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 766 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 767 | utmp_write_library(struct logininfo *li, struct utmp *ut) |
| 768 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 769 | setutent(); |
| 770 | pututline(ut); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 771 | # ifdef HAVE_ENDUTENT |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 772 | endutent(); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 773 | # endif |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 774 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 775 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 776 | # else /* UTMP_USE_LIBRARY */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 777 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 778 | /* |
| 779 | * Write a utmp entry direct to the file |
| 780 | * This is a slightly modification of code in OpenBSD's login.c |
| 781 | */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 782 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 783 | utmp_write_direct(struct logininfo *li, struct utmp *ut) |
| 784 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 785 | struct utmp old_ut; |
| 786 | register int fd; |
| 787 | int tty; |
| 788 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 789 | /* FIXME: (ATL) ttyslot() needs local implementation */ |
Damien Miller | 348c9b7 | 2000-08-15 10:01:22 +1000 | [diff] [blame] | 790 | |
Damien Miller | e5192fa | 2000-08-29 14:30:37 +1100 | [diff] [blame] | 791 | #if defined(HAVE_GETTTYENT) |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 792 | struct ttyent *ty; |
Damien Miller | 348c9b7 | 2000-08-15 10:01:22 +1000 | [diff] [blame] | 793 | |
| 794 | tty=0; |
Damien Miller | 348c9b7 | 2000-08-15 10:01:22 +1000 | [diff] [blame] | 795 | setttyent(); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 796 | while (NULL != (ty = getttyent())) { |
Damien Miller | 348c9b7 | 2000-08-15 10:01:22 +1000 | [diff] [blame] | 797 | tty++; |
| 798 | if (!strncmp(ty->ty_name, ut->ut_line, sizeof(ut->ut_line))) |
| 799 | break; |
| 800 | } |
| 801 | endttyent(); |
| 802 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 803 | if (NULL == ty) { |
Damien Miller | 8140959 | 2004-08-15 19:12:52 +1000 | [diff] [blame] | 804 | logit("%s: tty not found", __func__); |
| 805 | return (0); |
Damien Miller | 348c9b7 | 2000-08-15 10:01:22 +1000 | [diff] [blame] | 806 | } |
| 807 | #else /* FIXME */ |
| 808 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 809 | tty = ttyslot(); /* seems only to work for /dev/ttyp? style names */ |
| 810 | |
Damien Miller | e5192fa | 2000-08-29 14:30:37 +1100 | [diff] [blame] | 811 | #endif /* HAVE_GETTTYENT */ |
Damien Miller | 348c9b7 | 2000-08-15 10:01:22 +1000 | [diff] [blame] | 812 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 813 | if (tty > 0 && (fd = open(UTMP_FILE, O_RDWR|O_CREAT, 0644)) >= 0) { |
Damien Miller | 8140959 | 2004-08-15 19:12:52 +1000 | [diff] [blame] | 814 | off_t pos, ret; |
| 815 | |
| 816 | pos = (off_t)tty * sizeof(struct utmp); |
| 817 | if ((ret = lseek(fd, pos, SEEK_SET)) == -1) { |
Damien Miller | b0419f2 | 2004-08-23 21:53:28 +1000 | [diff] [blame] | 818 | logit("%s: lseek: %s", __func__, strerror(errno)); |
Damien Miller | 8140959 | 2004-08-15 19:12:52 +1000 | [diff] [blame] | 819 | return (0); |
| 820 | } |
| 821 | if (ret != pos) { |
Damien Miller | b0419f2 | 2004-08-23 21:53:28 +1000 | [diff] [blame] | 822 | logit("%s: Couldn't seek to tty %d slot in %s", |
| 823 | __func__, tty, UTMP_FILE); |
Damien Miller | 8140959 | 2004-08-15 19:12:52 +1000 | [diff] [blame] | 824 | return (0); |
| 825 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 826 | /* |
| 827 | * Prevent luser from zero'ing out ut_host. |
| 828 | * If the new ut_line is empty but the old one is not |
Damien Miller | 7a0e5dc | 2000-07-11 12:15:54 +1000 | [diff] [blame] | 829 | * and ut_line and ut_name match, preserve the old ut_line. |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 830 | */ |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 831 | if (atomicio(read, fd, &old_ut, sizeof(old_ut)) == sizeof(old_ut) && |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 832 | (ut->ut_host[0] == '\0') && (old_ut.ut_host[0] != '\0') && |
| 833 | (strncmp(old_ut.ut_line, ut->ut_line, sizeof(ut->ut_line)) == 0) && |
| 834 | (strncmp(old_ut.ut_name, ut->ut_name, sizeof(ut->ut_name)) == 0)) |
| 835 | memcpy(ut->ut_host, old_ut.ut_host, sizeof(ut->ut_host)); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 836 | |
Damien Miller | 8140959 | 2004-08-15 19:12:52 +1000 | [diff] [blame] | 837 | if ((ret = lseek(fd, pos, SEEK_SET)) == -1) { |
Damien Miller | b0419f2 | 2004-08-23 21:53:28 +1000 | [diff] [blame] | 838 | logit("%s: lseek: %s", __func__, strerror(errno)); |
Damien Miller | 8140959 | 2004-08-15 19:12:52 +1000 | [diff] [blame] | 839 | return (0); |
| 840 | } |
| 841 | if (ret != pos) { |
Damien Miller | b0419f2 | 2004-08-23 21:53:28 +1000 | [diff] [blame] | 842 | logit("%s: Couldn't seek to tty %d slot in %s", |
Damien Miller | 8140959 | 2004-08-15 19:12:52 +1000 | [diff] [blame] | 843 | __func__, tty, UTMP_FILE); |
| 844 | return (0); |
| 845 | } |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 846 | if (atomicio(vwrite, fd, ut, sizeof(*ut)) != sizeof(*ut)) { |
Damien Miller | 8140959 | 2004-08-15 19:12:52 +1000 | [diff] [blame] | 847 | logit("%s: error writing %s: %s", __func__, |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 848 | UTMP_FILE, strerror(errno)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 849 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 850 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 851 | close(fd); |
| 852 | return (1); |
Damien Miller | 53c5d46 | 2000-06-28 00:50:50 +1000 | [diff] [blame] | 853 | } else { |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 854 | return (0); |
Damien Miller | 53c5d46 | 2000-06-28 00:50:50 +1000 | [diff] [blame] | 855 | } |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 856 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 857 | # endif /* UTMP_USE_LIBRARY */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 858 | |
| 859 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 860 | utmp_perform_login(struct logininfo *li) |
| 861 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 862 | struct utmp ut; |
| 863 | |
| 864 | construct_utmp(li, &ut); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 865 | # ifdef UTMP_USE_LIBRARY |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 866 | if (!utmp_write_library(li, &ut)) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 867 | logit("%s: utmp_write_library() failed", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 868 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 869 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 870 | # else |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 871 | if (!utmp_write_direct(li, &ut)) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 872 | logit("%s: utmp_write_direct() failed", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 873 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 874 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 875 | # endif |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 876 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 877 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 878 | |
| 879 | |
| 880 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 881 | utmp_perform_logout(struct logininfo *li) |
| 882 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 883 | struct utmp ut; |
| 884 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 885 | construct_utmp(li, &ut); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 886 | # ifdef UTMP_USE_LIBRARY |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 887 | if (!utmp_write_library(li, &ut)) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 888 | logit("%s: utmp_write_library() failed", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 889 | return (0); |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 890 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 891 | # else |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 892 | if (!utmp_write_direct(li, &ut)) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 893 | logit("%s: utmp_write_direct() failed", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 894 | return (0); |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 895 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 896 | # endif |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 897 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 898 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 899 | |
| 900 | |
| 901 | int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 902 | utmp_write_entry(struct logininfo *li) |
| 903 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 904 | switch(li->type) { |
| 905 | case LTYPE_LOGIN: |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 906 | return (utmp_perform_login(li)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 907 | |
| 908 | case LTYPE_LOGOUT: |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 909 | return (utmp_perform_logout(li)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 910 | |
| 911 | default: |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 912 | logit("%s: invalid type field", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 913 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 914 | } |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 915 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 916 | #endif /* USE_UTMP */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 917 | |
| 918 | |
| 919 | /** |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 920 | ** Low-level utmpx functions |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 921 | **/ |
| 922 | |
| 923 | /* not much point if we don't want utmpx entries */ |
| 924 | #ifdef USE_UTMPX |
| 925 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 926 | /* if we have the wherewithall, use pututxline etc. */ |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 927 | # if !defined(DISABLE_PUTUTXLINE) && defined(HAVE_SETUTXENT) && \ |
| 928 | defined(HAVE_PUTUTXLINE) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 929 | # define UTMPX_USE_LIBRARY |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 930 | # endif |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 931 | |
| 932 | |
| 933 | /* write a utmpx entry with the system's help (pututxline() and pals) */ |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 934 | # ifdef UTMPX_USE_LIBRARY |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 935 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 936 | utmpx_write_library(struct logininfo *li, struct utmpx *utx) |
| 937 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 938 | setutxent(); |
| 939 | pututxline(utx); |
| 940 | |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 941 | # ifdef HAVE_ENDUTXENT |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 942 | endutxent(); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 943 | # endif |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 944 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 945 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 946 | |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 947 | # else /* UTMPX_USE_LIBRARY */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 948 | |
| 949 | /* write a utmp entry direct to the file */ |
| 950 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 951 | utmpx_write_direct(struct logininfo *li, struct utmpx *utx) |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 952 | { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 953 | logit("%s: not implemented!", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 954 | return (0); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 955 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 956 | # endif /* UTMPX_USE_LIBRARY */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 957 | |
| 958 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 959 | utmpx_perform_login(struct logininfo *li) |
| 960 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 961 | struct utmpx utx; |
| 962 | |
| 963 | construct_utmpx(li, &utx); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 964 | # ifdef UTMPX_USE_LIBRARY |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 965 | if (!utmpx_write_library(li, &utx)) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 966 | logit("%s: utmp_write_library() failed", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 967 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 968 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 969 | # else |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 970 | if (!utmpx_write_direct(li, &ut)) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 971 | logit("%s: utmp_write_direct() failed", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 972 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 973 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 974 | # endif |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 975 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 976 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 977 | |
| 978 | |
| 979 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 980 | utmpx_perform_logout(struct logininfo *li) |
| 981 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 982 | struct utmpx utx; |
| 983 | |
Tim Rice | e06ae4a | 2002-02-24 17:56:46 -0800 | [diff] [blame] | 984 | construct_utmpx(li, &utx); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 985 | # ifdef HAVE_ID_IN_UTMPX |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 986 | line_abbrevname(utx.ut_id, li->line, sizeof(utx.ut_id)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 987 | # endif |
| 988 | # ifdef HAVE_TYPE_IN_UTMPX |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 989 | utx.ut_type = DEAD_PROCESS; |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 990 | # endif |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 991 | |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 992 | # ifdef UTMPX_USE_LIBRARY |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 993 | utmpx_write_library(li, &utx); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 994 | # else |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 995 | utmpx_write_direct(li, &utx); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 996 | # endif |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 997 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 998 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 999 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1000 | int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1001 | utmpx_write_entry(struct logininfo *li) |
| 1002 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1003 | switch(li->type) { |
| 1004 | case LTYPE_LOGIN: |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1005 | return (utmpx_perform_login(li)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1006 | case LTYPE_LOGOUT: |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1007 | return (utmpx_perform_logout(li)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1008 | default: |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1009 | logit("%s: invalid type field", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1010 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1011 | } |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1012 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1013 | #endif /* USE_UTMPX */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1014 | |
| 1015 | |
| 1016 | /** |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1017 | ** Low-level wtmp functions |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1018 | **/ |
| 1019 | |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1020 | #ifdef USE_WTMP |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1021 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1022 | /* |
| 1023 | * Write a wtmp entry direct to the end of the file |
| 1024 | * This is a slight modification of code in OpenBSD's logwtmp.c |
| 1025 | */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1026 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1027 | wtmp_write(struct logininfo *li, struct utmp *ut) |
| 1028 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1029 | struct stat buf; |
| 1030 | int fd, ret = 1; |
| 1031 | |
| 1032 | if ((fd = open(WTMP_FILE, O_WRONLY|O_APPEND, 0)) < 0) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1033 | logit("%s: problem writing %s: %s", __func__, |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1034 | WTMP_FILE, strerror(errno)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1035 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1036 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1037 | if (fstat(fd, &buf) == 0) |
Darren Tucker | 8661b56 | 2003-07-06 15:20:46 +1000 | [diff] [blame] | 1038 | if (atomicio(vwrite, fd, ut, sizeof(*ut)) != sizeof(*ut)) { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1039 | ftruncate(fd, buf.st_size); |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1040 | logit("%s: problem writing %s: %s", __func__, |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1041 | WTMP_FILE, strerror(errno)); |
| 1042 | ret = 0; |
| 1043 | } |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1044 | close(fd); |
| 1045 | return (ret); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1046 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1047 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1048 | static int |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1049 | wtmp_perform_login(struct logininfo *li) |
| 1050 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1051 | struct utmp ut; |
| 1052 | |
| 1053 | construct_utmp(li, &ut); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1054 | return (wtmp_write(li, &ut)); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1055 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1056 | |
| 1057 | |
| 1058 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1059 | wtmp_perform_logout(struct logininfo *li) |
| 1060 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1061 | struct utmp ut; |
| 1062 | |
| 1063 | construct_utmp(li, &ut); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1064 | return (wtmp_write(li, &ut)); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1065 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1066 | |
| 1067 | |
| 1068 | int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1069 | wtmp_write_entry(struct logininfo *li) |
| 1070 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1071 | switch(li->type) { |
| 1072 | case LTYPE_LOGIN: |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1073 | return (wtmp_perform_login(li)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1074 | case LTYPE_LOGOUT: |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1075 | return (wtmp_perform_logout(li)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1076 | default: |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1077 | logit("%s: invalid type field", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1078 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1079 | } |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1080 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1081 | |
| 1082 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1083 | /* |
| 1084 | * Notes on fetching login data from wtmp/wtmpx |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1085 | * |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1086 | * Logouts are usually recorded with (amongst other things) a blank |
| 1087 | * username on a given tty line. However, some systems (HP-UX is one) |
| 1088 | * leave all fields set, but change the ut_type field to DEAD_PROCESS. |
| 1089 | * |
| 1090 | * Since we're only looking for logins here, we know that the username |
| 1091 | * must be set correctly. On systems that leave it in, we check for |
| 1092 | * ut_type==USER_PROCESS (indicating a login.) |
| 1093 | * |
| 1094 | * Portability: Some systems may set something other than USER_PROCESS |
| 1095 | * to indicate a login process. I don't know of any as I write. Also, |
| 1096 | * it's possible that some systems may both leave the username in |
| 1097 | * place and not have ut_type. |
| 1098 | */ |
| 1099 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1100 | /* return true if this wtmp entry indicates a login */ |
| 1101 | static int |
| 1102 | wtmp_islogin(struct logininfo *li, struct utmp *ut) |
| 1103 | { |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1104 | if (strncmp(li->username, ut->ut_name, |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1105 | MIN_SIZEOF(li->username, ut->ut_name)) == 0) { |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1106 | # ifdef HAVE_TYPE_IN_UTMP |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1107 | if (ut->ut_type & USER_PROCESS) |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1108 | return (1); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1109 | # else |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1110 | return (1); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1111 | # endif |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1112 | } |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1113 | return (0); |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1114 | } |
| 1115 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1116 | int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1117 | wtmp_get_entry(struct logininfo *li) |
| 1118 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1119 | struct stat st; |
| 1120 | struct utmp ut; |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1121 | int fd, found = 0; |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1122 | |
| 1123 | /* Clear the time entries in our logininfo */ |
| 1124 | li->tv_sec = li->tv_usec = 0; |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1125 | |
| 1126 | if ((fd = open(WTMP_FILE, O_RDONLY)) < 0) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1127 | logit("%s: problem opening %s: %s", __func__, |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1128 | WTMP_FILE, strerror(errno)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1129 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1130 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1131 | if (fstat(fd, &st) != 0) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1132 | logit("%s: couldn't stat %s: %s", __func__, |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1133 | WTMP_FILE, strerror(errno)); |
| 1134 | close(fd); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1135 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1136 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1137 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1138 | /* Seek to the start of the last struct utmp */ |
Kevin Steves | 5217265 | 2001-10-02 00:29:00 +0000 | [diff] [blame] | 1139 | if (lseek(fd, -(off_t)sizeof(struct utmp), SEEK_END) == -1) { |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1140 | /* Looks like we've got a fresh wtmp file */ |
| 1141 | close(fd); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1142 | return (0); |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1143 | } |
| 1144 | |
| 1145 | while (!found) { |
Damien Miller | 53c5d46 | 2000-06-28 00:50:50 +1000 | [diff] [blame] | 1146 | if (atomicio(read, fd, &ut, sizeof(ut)) != sizeof(ut)) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1147 | logit("%s: read of %s failed: %s", __func__, |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1148 | WTMP_FILE, strerror(errno)); |
| 1149 | close (fd); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1150 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1151 | } |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1152 | if ( wtmp_islogin(li, &ut) ) { |
| 1153 | found = 1; |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1154 | /* |
| 1155 | * We've already checked for a time in struct |
| 1156 | * utmp, in login_getlast() |
| 1157 | */ |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1158 | # ifdef HAVE_TIME_IN_UTMP |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1159 | li->tv_sec = ut.ut_time; |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1160 | # else |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1161 | # if HAVE_TV_IN_UTMP |
| 1162 | li->tv_sec = ut.ut_tv.tv_sec; |
| 1163 | # endif |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1164 | # endif |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1165 | line_fullname(li->line, ut.ut_line, |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1166 | MIN_SIZEOF(li->line, ut.ut_line)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1167 | # ifdef HAVE_HOST_IN_UTMP |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1168 | strlcpy(li->hostname, ut.ut_host, |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1169 | MIN_SIZEOF(li->hostname, ut.ut_host)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1170 | # endif |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1171 | continue; |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1172 | } |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1173 | /* Seek back 2 x struct utmp */ |
Kevin Steves | 5217265 | 2001-10-02 00:29:00 +0000 | [diff] [blame] | 1174 | if (lseek(fd, -(off_t)(2 * sizeof(struct utmp)), SEEK_CUR) == -1) { |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1175 | /* We've found the start of the file, so quit */ |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1176 | close(fd); |
| 1177 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1178 | } |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1179 | } |
| 1180 | |
| 1181 | /* We found an entry. Tidy up and return */ |
| 1182 | close(fd); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1183 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1184 | } |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1185 | # endif /* USE_WTMP */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1186 | |
| 1187 | |
| 1188 | /** |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1189 | ** Low-level wtmpx functions |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1190 | **/ |
| 1191 | |
| 1192 | #ifdef USE_WTMPX |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1193 | /* |
| 1194 | * Write a wtmpx entry direct to the end of the file |
| 1195 | * This is a slight modification of code in OpenBSD's logwtmp.c |
| 1196 | */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1197 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1198 | wtmpx_write(struct logininfo *li, struct utmpx *utx) |
| 1199 | { |
Darren Tucker | c28b88a | 2004-02-10 16:49:35 +1100 | [diff] [blame] | 1200 | #ifndef HAVE_UPDWTMPX |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1201 | struct stat buf; |
| 1202 | int fd, ret = 1; |
| 1203 | |
| 1204 | if ((fd = open(WTMPX_FILE, O_WRONLY|O_APPEND, 0)) < 0) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1205 | logit("%s: problem opening %s: %s", __func__, |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1206 | WTMPX_FILE, strerror(errno)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1207 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1208 | } |
| 1209 | |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1210 | if (fstat(fd, &buf) == 0) |
Darren Tucker | 8661b56 | 2003-07-06 15:20:46 +1000 | [diff] [blame] | 1211 | if (atomicio(vwrite, fd, utx, sizeof(*utx)) != sizeof(*utx)) { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1212 | ftruncate(fd, buf.st_size); |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1213 | logit("%s: problem writing %s: %s", __func__, |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1214 | WTMPX_FILE, strerror(errno)); |
| 1215 | ret = 0; |
| 1216 | } |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1217 | close(fd); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1218 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1219 | return (ret); |
Darren Tucker | c28b88a | 2004-02-10 16:49:35 +1100 | [diff] [blame] | 1220 | #else |
| 1221 | updwtmpx(WTMPX_FILE, utx); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1222 | return (1); |
Darren Tucker | c28b88a | 2004-02-10 16:49:35 +1100 | [diff] [blame] | 1223 | #endif |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1224 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1225 | |
| 1226 | |
| 1227 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1228 | wtmpx_perform_login(struct logininfo *li) |
| 1229 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1230 | struct utmpx utx; |
| 1231 | |
| 1232 | construct_utmpx(li, &utx); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1233 | return (wtmpx_write(li, &utx)); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1234 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1235 | |
| 1236 | |
| 1237 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1238 | wtmpx_perform_logout(struct logininfo *li) |
| 1239 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1240 | struct utmpx utx; |
| 1241 | |
| 1242 | construct_utmpx(li, &utx); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1243 | return (wtmpx_write(li, &utx)); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1244 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1245 | |
| 1246 | |
| 1247 | int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1248 | wtmpx_write_entry(struct logininfo *li) |
| 1249 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1250 | switch(li->type) { |
| 1251 | case LTYPE_LOGIN: |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1252 | return (wtmpx_perform_login(li)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1253 | case LTYPE_LOGOUT: |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1254 | return (wtmpx_perform_logout(li)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1255 | default: |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1256 | logit("%s: invalid type field", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1257 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1258 | } |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1259 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1260 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1261 | /* Please see the notes above wtmp_islogin() for information about the |
| 1262 | next two functions */ |
| 1263 | |
| 1264 | /* Return true if this wtmpx entry indicates a login */ |
| 1265 | static int |
| 1266 | wtmpx_islogin(struct logininfo *li, struct utmpx *utx) |
| 1267 | { |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1268 | if (strncmp(li->username, utx->ut_name, |
| 1269 | MIN_SIZEOF(li->username, utx->ut_name)) == 0 ) { |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1270 | # ifdef HAVE_TYPE_IN_UTMPX |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1271 | if (utx->ut_type == USER_PROCESS) |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1272 | return (1); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1273 | # else |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1274 | return (1); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1275 | # endif |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1276 | } |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1277 | return (0); |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1278 | } |
| 1279 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1280 | |
| 1281 | int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1282 | wtmpx_get_entry(struct logininfo *li) |
| 1283 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1284 | struct stat st; |
| 1285 | struct utmpx utx; |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1286 | int fd, found=0; |
| 1287 | |
| 1288 | /* Clear the time entries */ |
| 1289 | li->tv_sec = li->tv_usec = 0; |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1290 | |
| 1291 | if ((fd = open(WTMPX_FILE, O_RDONLY)) < 0) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1292 | logit("%s: problem opening %s: %s", __func__, |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1293 | WTMPX_FILE, strerror(errno)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1294 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1295 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1296 | if (fstat(fd, &st) != 0) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1297 | logit("%s: couldn't stat %s: %s", __func__, |
Tim Rice | cdb8294 | 2002-07-14 15:33:20 -0700 | [diff] [blame] | 1298 | WTMPX_FILE, strerror(errno)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1299 | close(fd); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1300 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1301 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1302 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1303 | /* Seek to the start of the last struct utmpx */ |
Kevin Steves | 5217265 | 2001-10-02 00:29:00 +0000 | [diff] [blame] | 1304 | if (lseek(fd, -(off_t)sizeof(struct utmpx), SEEK_END) == -1 ) { |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1305 | /* probably a newly rotated wtmpx file */ |
| 1306 | close(fd); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1307 | return (0); |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1308 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1309 | |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1310 | while (!found) { |
Damien Miller | 53c5d46 | 2000-06-28 00:50:50 +1000 | [diff] [blame] | 1311 | if (atomicio(read, fd, &utx, sizeof(utx)) != sizeof(utx)) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1312 | logit("%s: read of %s failed: %s", __func__, |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1313 | WTMPX_FILE, strerror(errno)); |
| 1314 | close (fd); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1315 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1316 | } |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1317 | /* |
| 1318 | * Logouts are recorded as a blank username on a particular |
| 1319 | * line. So, we just need to find the username in struct utmpx |
| 1320 | */ |
| 1321 | if (wtmpx_islogin(li, &utx)) { |
Tim Rice | 370e0ba | 2002-07-14 15:50:51 -0700 | [diff] [blame] | 1322 | found = 1; |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1323 | # if defined(HAVE_TV_IN_UTMPX) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1324 | li->tv_sec = utx.ut_tv.tv_sec; |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1325 | # elif defined(HAVE_TIME_IN_UTMPX) |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1326 | li->tv_sec = utx.ut_time; |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1327 | # endif |
Damien Miller | 1a13225 | 2000-06-13 21:23:17 +1000 | [diff] [blame] | 1328 | line_fullname(li->line, utx.ut_line, sizeof(li->line)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1329 | # if defined(HAVE_HOST_IN_UTMPX) |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1330 | strlcpy(li->hostname, utx.ut_host, |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1331 | MIN_SIZEOF(li->hostname, utx.ut_host)); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1332 | # endif |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1333 | continue; |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1334 | } |
Kevin Steves | 5217265 | 2001-10-02 00:29:00 +0000 | [diff] [blame] | 1335 | if (lseek(fd, -(off_t)(2 * sizeof(struct utmpx)), SEEK_CUR) == -1) { |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1336 | close(fd); |
| 1337 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1338 | } |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1339 | } |
| 1340 | |
| 1341 | close(fd); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1342 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1343 | } |
Damien Miller | d5bf307 | 2000-06-07 21:32:13 +1000 | [diff] [blame] | 1344 | #endif /* USE_WTMPX */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1345 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1346 | /** |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1347 | ** Low-level libutil login() functions |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1348 | **/ |
| 1349 | |
| 1350 | #ifdef USE_LOGIN |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1351 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1352 | syslogin_perform_login(struct logininfo *li) |
| 1353 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1354 | struct utmp *ut; |
| 1355 | |
Damien Miller | b0aae33 | 2004-09-12 15:26:00 +1000 | [diff] [blame^] | 1356 | ut = xmalloc(sizeof(*ut)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1357 | construct_utmp(li, ut); |
| 1358 | login(ut); |
Damien Miller | f211efc | 2003-03-10 11:23:06 +1100 | [diff] [blame] | 1359 | free(ut); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1360 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1361 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1362 | } |
| 1363 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1364 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1365 | syslogin_perform_logout(struct logininfo *li) |
| 1366 | { |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1367 | # ifdef HAVE_LOGOUT |
Darren Tucker | 4d2f361 | 2004-04-08 10:57:05 +1000 | [diff] [blame] | 1368 | char line[UT_LINESIZE]; |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1369 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1370 | (void)line_stripname(line, li->line, sizeof(line)); |
| 1371 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1372 | if (!logout(line)) |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1373 | logit("%s: logout() returned an error", __func__); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1374 | # ifdef HAVE_LOGWTMP |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1375 | else |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1376 | logwtmp(line, "", ""); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1377 | # endif |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1378 | /* FIXME: (ATL - if the need arises) What to do if we have |
| 1379 | * login, but no logout? what if logout but no logwtmp? All |
| 1380 | * routines are in libutil so they should all be there, |
| 1381 | * but... */ |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1382 | # endif |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1383 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1384 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1385 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1386 | int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1387 | syslogin_write_entry(struct logininfo *li) |
| 1388 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1389 | switch (li->type) { |
| 1390 | case LTYPE_LOGIN: |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1391 | return (syslogin_perform_login(li)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1392 | case LTYPE_LOGOUT: |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1393 | return (syslogin_perform_logout(li)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1394 | default: |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1395 | logit("%s: Invalid type field", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1396 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1397 | } |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1398 | } |
Damien Miller | d5bf307 | 2000-06-07 21:32:13 +1000 | [diff] [blame] | 1399 | #endif /* USE_LOGIN */ |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1400 | |
| 1401 | /* end of file log-syslogin.c */ |
| 1402 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1403 | /** |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1404 | ** Low-level lastlog functions |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1405 | **/ |
| 1406 | |
| 1407 | #ifdef USE_LASTLOG |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1408 | #define LL_FILE 1 |
| 1409 | #define LL_DIR 2 |
| 1410 | #define LL_OTHER 3 |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1411 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1412 | static void |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1413 | lastlog_construct(struct logininfo *li, struct lastlog *last) |
| 1414 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1415 | /* clear the structure */ |
Damien Miller | 348c9b7 | 2000-08-15 10:01:22 +1000 | [diff] [blame] | 1416 | memset(last, '\0', sizeof(*last)); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1417 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1418 | line_stripname(last->ll_line, li->line, sizeof(last->ll_line)); |
andre | 6bb9237 | 2000-06-19 08:20:03 +0000 | [diff] [blame] | 1419 | strlcpy(last->ll_host, li->hostname, |
| 1420 | MIN_SIZEOF(last->ll_host, li->hostname)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1421 | last->ll_time = li->tv_sec; |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1422 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1423 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1424 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1425 | lastlog_filetype(char *filename) |
| 1426 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1427 | struct stat st; |
| 1428 | |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1429 | if (stat(LASTLOG_FILE, &st) != 0) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1430 | logit("%s: Couldn't stat %s: %s", __func__, |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1431 | LASTLOG_FILE, strerror(errno)); |
| 1432 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1433 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1434 | if (S_ISDIR(st.st_mode)) |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1435 | return (LL_DIR); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1436 | else if (S_ISREG(st.st_mode)) |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1437 | return (LL_FILE); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1438 | else |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1439 | return (LL_OTHER); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1440 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1441 | |
| 1442 | |
| 1443 | /* open the file (using filemode) and seek to the login entry */ |
| 1444 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1445 | lastlog_openseek(struct logininfo *li, int *fd, int filemode) |
| 1446 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1447 | off_t offset; |
| 1448 | int type; |
| 1449 | char lastlog_file[1024]; |
| 1450 | |
| 1451 | type = lastlog_filetype(LASTLOG_FILE); |
| 1452 | switch (type) { |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1453 | case LL_FILE: |
| 1454 | strlcpy(lastlog_file, LASTLOG_FILE, |
| 1455 | sizeof(lastlog_file)); |
| 1456 | break; |
| 1457 | case LL_DIR: |
| 1458 | snprintf(lastlog_file, sizeof(lastlog_file), "%s/%s", |
| 1459 | LASTLOG_FILE, li->username); |
| 1460 | break; |
| 1461 | default: |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1462 | logit("%s: %.100s is not a file or directory!", __func__, |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1463 | LASTLOG_FILE); |
| 1464 | return (0); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1465 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1466 | |
Damien Miller | 405dc60 | 2003-04-09 21:12:52 +1000 | [diff] [blame] | 1467 | *fd = open(lastlog_file, filemode, 0600); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1468 | if (*fd < 0) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1469 | debug("%s: Couldn't open %s: %s", __func__, |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1470 | lastlog_file, strerror(errno)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1471 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1472 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1473 | |
Damien Miller | e477ef6 | 2000-08-15 10:21:17 +1000 | [diff] [blame] | 1474 | if (type == LL_FILE) { |
| 1475 | /* find this uid's offset in the lastlog file */ |
Kevin Steves | 5217265 | 2001-10-02 00:29:00 +0000 | [diff] [blame] | 1476 | offset = (off_t) ((long)li->uid * sizeof(struct lastlog)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1477 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1478 | if (lseek(*fd, offset, SEEK_SET) != offset) { |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1479 | logit("%s: %s->lseek(): %s", __func__, |
| 1480 | lastlog_file, strerror(errno)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1481 | return (0); |
Damien Miller | e477ef6 | 2000-08-15 10:21:17 +1000 | [diff] [blame] | 1482 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1483 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1484 | |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1485 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1486 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1487 | |
| 1488 | static int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1489 | lastlog_perform_login(struct logininfo *li) |
| 1490 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1491 | struct lastlog last; |
| 1492 | int fd; |
| 1493 | |
| 1494 | /* create our struct lastlog */ |
| 1495 | lastlog_construct(li, &last); |
| 1496 | |
Damien Miller | 405dc60 | 2003-04-09 21:12:52 +1000 | [diff] [blame] | 1497 | if (!lastlog_openseek(li, &fd, O_RDWR|O_CREAT)) |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1498 | return (0); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1499 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1500 | /* write the entry */ |
Darren Tucker | 8661b56 | 2003-07-06 15:20:46 +1000 | [diff] [blame] | 1501 | if (atomicio(vwrite, fd, &last, sizeof(last)) != sizeof(last)) { |
Damien Miller | c1132e7 | 2000-08-18 14:08:38 +1000 | [diff] [blame] | 1502 | close(fd); |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1503 | logit("%s: Error writing to %s: %s", __func__, |
Damien Miller | c1132e7 | 2000-08-18 14:08:38 +1000 | [diff] [blame] | 1504 | LASTLOG_FILE, strerror(errno)); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1505 | return (0); |
Damien Miller | dd47aa2 | 2000-06-27 11:18:27 +1000 | [diff] [blame] | 1506 | } |
Damien Miller | c1132e7 | 2000-08-18 14:08:38 +1000 | [diff] [blame] | 1507 | |
| 1508 | close(fd); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1509 | return (1); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1510 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1511 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1512 | int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1513 | lastlog_write_entry(struct logininfo *li) |
| 1514 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1515 | switch(li->type) { |
| 1516 | case LTYPE_LOGIN: |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1517 | return (lastlog_perform_login(li)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1518 | default: |
Damien Miller | 6b0279c | 2004-09-12 15:25:17 +1000 | [diff] [blame] | 1519 | logit("%s: Invalid type field", __func__); |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1520 | return (0); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1521 | } |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1522 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1523 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1524 | static void |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1525 | lastlog_populate_entry(struct logininfo *li, struct lastlog *last) |
| 1526 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1527 | line_fullname(li->line, last->ll_line, sizeof(li->line)); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1528 | strlcpy(li->hostname, last->ll_host, |
Damien Miller | 8899ed3 | 2004-09-12 15:18:55 +1000 | [diff] [blame] | 1529 | MIN_SIZEOF(li->hostname, last->ll_host)); |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1530 | li->tv_sec = last->ll_time; |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1531 | } |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1532 | |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1533 | int |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1534 | lastlog_get_entry(struct logininfo *li) |
| 1535 | { |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1536 | struct lastlog last; |
Damien Miller | 7df881d | 2003-01-07 16:46:58 +1100 | [diff] [blame] | 1537 | int fd, ret; |
andre | 2ff7b5d | 2000-06-03 14:57:40 +0000 | [diff] [blame] | 1538 | |
Damien Miller | 3a8a5cd | 2001-10-22 16:49:22 +1000 | [diff] [blame] | 1539 | if (!lastlog_openseek(li, &fd, O_RDONLY)) |
Damien Miller | 7df881d | 2003-01-07 16:46:58 +1100 | [diff] [blame] | 1540 | return (0); |
Damien Miller | 3a8a5cd | 2001-10-22 16:49:22 +1000 | [diff] [blame] | 1541 | |
Damien Miller | 7df881d | 2003-01-07 16:46:58 +1100 | [diff] [blame] | 1542 | ret = atomicio(read, fd, &last, sizeof(last)); |
Damien Miller | 3a8a5cd | 2001-10-22 16:49:22 +1000 | [diff] [blame] | 1543 | close(fd); |
| 1544 | |
Damien Miller | 7df881d | 2003-01-07 16:46:58 +1100 | [diff] [blame] | 1545 | switch (ret) { |
| 1546 | case 0: |
| 1547 | memset(&last, '\0', sizeof(last)); |
| 1548 | /* FALLTHRU */ |
| 1549 | case sizeof(last): |
| 1550 | lastlog_populate_entry(li, &last); |
| 1551 | return (1); |
| 1552 | case -1: |
Damien Miller | a8e06ce | 2003-11-21 23:48:55 +1100 | [diff] [blame] | 1553 | error("%s: Error reading from %s: %s", __func__, |
Damien Miller | 7df881d | 2003-01-07 16:46:58 +1100 | [diff] [blame] | 1554 | LASTLOG_FILE, strerror(errno)); |
| 1555 | return (0); |
| 1556 | default: |
| 1557 | error("%s: Error reading from %s: Expecting %d, got %d", |
| 1558 | __func__, LASTLOG_FILE, sizeof(last), ret); |
| 1559 | return (0); |
| 1560 | } |
Damien Miller | 3a8a5cd | 2001-10-22 16:49:22 +1000 | [diff] [blame] | 1561 | |
Damien Miller | 7df881d | 2003-01-07 16:46:58 +1100 | [diff] [blame] | 1562 | /* NOTREACHED */ |
| 1563 | return (0); |
andre | 61e6725 | 2000-06-04 17:07:49 +0000 | [diff] [blame] | 1564 | } |
Damien Miller | d5bf307 | 2000-06-07 21:32:13 +1000 | [diff] [blame] | 1565 | #endif /* USE_LASTLOG */ |