Damien Miller | 8ec8c3e | 2006-07-10 20:35:38 +1000 | [diff] [blame] | 1 | /* $OpenBSD: misc.c,v 1.53 2006/07/05 02:42:09 stevesk Exp $ */ |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (c) 2000 Markus Friedl. All rights reserved. |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 4 | * Copyright (c) 2005,2006 Damien Miller. All rights reserved. |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 16 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 17 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 18 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | */ |
| 26 | |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 27 | #include "includes.h" |
Damien Miller | 17e91c0 | 2006-03-15 11:28:34 +1100 | [diff] [blame] | 28 | |
| 29 | #include <sys/ioctl.h> |
Damien Miller | 8ec8c3e | 2006-07-10 20:35:38 +1000 | [diff] [blame] | 30 | #include <sys/socket.h> |
| 31 | |
| 32 | #include <netinet/in.h> |
Damien Miller | 3a4051e | 2006-03-15 11:19:42 +1100 | [diff] [blame] | 33 | #include <netinet/tcp.h> |
Damien Miller | 8ec8c3e | 2006-07-10 20:35:38 +1000 | [diff] [blame] | 34 | |
Damien Miller | 03e2003 | 2006-03-15 11:16:59 +1100 | [diff] [blame] | 35 | #ifdef HAVE_PATHS_H |
Damien Miller | a9263d0 | 2006-03-15 11:18:26 +1100 | [diff] [blame] | 36 | # include <paths.h> |
Damien Miller | 03e2003 | 2006-03-15 11:16:59 +1100 | [diff] [blame] | 37 | #endif |
Damien Miller | 3beb852 | 2006-01-02 23:40:10 +1100 | [diff] [blame] | 38 | #ifdef SSH_TUN_OPENBSD |
| 39 | #include <net/if.h> |
| 40 | #endif |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 41 | |
Kevin Steves | b6e773a | 2001-02-04 13:20:36 +0000 | [diff] [blame] | 42 | #include "misc.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 43 | #include "log.h" |
Ben Lindstrom | 0690901 | 2001-03-05 06:09:31 +0000 | [diff] [blame] | 44 | #include "xmalloc.h" |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 45 | |
Ben Lindstrom | 4cc240d | 2001-07-04 04:46:56 +0000 | [diff] [blame] | 46 | /* remove newline at end of string */ |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 47 | char * |
| 48 | chop(char *s) |
| 49 | { |
| 50 | char *t = s; |
| 51 | while (*t) { |
Ben Lindstrom | 1c37c6a | 2001-12-06 18:00:18 +0000 | [diff] [blame] | 52 | if (*t == '\n' || *t == '\r') { |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 53 | *t = '\0'; |
| 54 | return s; |
| 55 | } |
| 56 | t++; |
| 57 | } |
| 58 | return s; |
| 59 | |
| 60 | } |
| 61 | |
Ben Lindstrom | 4cc240d | 2001-07-04 04:46:56 +0000 | [diff] [blame] | 62 | /* set/unset filedescriptor to non-blocking */ |
Damien Miller | 232711f | 2004-06-15 10:35:30 +1000 | [diff] [blame] | 63 | int |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 64 | set_nonblock(int fd) |
| 65 | { |
| 66 | int val; |
Ben Lindstrom | c93e84c | 2001-05-12 00:08:37 +0000 | [diff] [blame] | 67 | |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 68 | val = fcntl(fd, F_GETFL, 0); |
| 69 | if (val < 0) { |
| 70 | error("fcntl(%d, F_GETFL, 0): %s", fd, strerror(errno)); |
Damien Miller | 232711f | 2004-06-15 10:35:30 +1000 | [diff] [blame] | 71 | return (-1); |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 72 | } |
Damien Miller | 69b69aa | 2000-10-28 14:19:58 +1100 | [diff] [blame] | 73 | if (val & O_NONBLOCK) { |
Damien Miller | 232711f | 2004-06-15 10:35:30 +1000 | [diff] [blame] | 74 | debug3("fd %d is O_NONBLOCK", fd); |
| 75 | return (0); |
Damien Miller | 69b69aa | 2000-10-28 14:19:58 +1100 | [diff] [blame] | 76 | } |
Damien Miller | ef095ce | 2003-05-14 13:41:39 +1000 | [diff] [blame] | 77 | debug2("fd %d setting O_NONBLOCK", fd); |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 78 | val |= O_NONBLOCK; |
Damien Miller | 232711f | 2004-06-15 10:35:30 +1000 | [diff] [blame] | 79 | if (fcntl(fd, F_SETFL, val) == -1) { |
| 80 | debug("fcntl(%d, F_SETFL, O_NONBLOCK): %s", fd, |
| 81 | strerror(errno)); |
| 82 | return (-1); |
| 83 | } |
| 84 | return (0); |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 85 | } |
| 86 | |
Damien Miller | 232711f | 2004-06-15 10:35:30 +1000 | [diff] [blame] | 87 | int |
Ben Lindstrom | c93e84c | 2001-05-12 00:08:37 +0000 | [diff] [blame] | 88 | unset_nonblock(int fd) |
| 89 | { |
| 90 | int val; |
| 91 | |
| 92 | val = fcntl(fd, F_GETFL, 0); |
| 93 | if (val < 0) { |
| 94 | error("fcntl(%d, F_GETFL, 0): %s", fd, strerror(errno)); |
Damien Miller | 232711f | 2004-06-15 10:35:30 +1000 | [diff] [blame] | 95 | return (-1); |
Ben Lindstrom | c93e84c | 2001-05-12 00:08:37 +0000 | [diff] [blame] | 96 | } |
| 97 | if (!(val & O_NONBLOCK)) { |
Damien Miller | 232711f | 2004-06-15 10:35:30 +1000 | [diff] [blame] | 98 | debug3("fd %d is not O_NONBLOCK", fd); |
| 99 | return (0); |
Ben Lindstrom | c93e84c | 2001-05-12 00:08:37 +0000 | [diff] [blame] | 100 | } |
Ben Lindstrom | 352b1c2 | 2001-06-21 03:04:37 +0000 | [diff] [blame] | 101 | debug("fd %d clearing O_NONBLOCK", fd); |
Ben Lindstrom | c93e84c | 2001-05-12 00:08:37 +0000 | [diff] [blame] | 102 | val &= ~O_NONBLOCK; |
Damien Miller | 232711f | 2004-06-15 10:35:30 +1000 | [diff] [blame] | 103 | if (fcntl(fd, F_SETFL, val) == -1) { |
| 104 | debug("fcntl(%d, F_SETFL, ~O_NONBLOCK): %s", |
Ben Lindstrom | 84fcb31 | 2002-03-05 01:48:09 +0000 | [diff] [blame] | 105 | fd, strerror(errno)); |
Damien Miller | 232711f | 2004-06-15 10:35:30 +1000 | [diff] [blame] | 106 | return (-1); |
| 107 | } |
| 108 | return (0); |
Ben Lindstrom | c93e84c | 2001-05-12 00:08:37 +0000 | [diff] [blame] | 109 | } |
| 110 | |
Damien Miller | 398e1cf | 2002-02-05 11:52:13 +1100 | [diff] [blame] | 111 | /* disable nagle on socket */ |
| 112 | void |
| 113 | set_nodelay(int fd) |
| 114 | { |
Ben Lindstrom | e86de51 | 2002-03-05 01:28:14 +0000 | [diff] [blame] | 115 | int opt; |
| 116 | socklen_t optlen; |
Damien Miller | 398e1cf | 2002-02-05 11:52:13 +1100 | [diff] [blame] | 117 | |
Ben Lindstrom | 1ebd7a5 | 2002-02-26 18:12:51 +0000 | [diff] [blame] | 118 | optlen = sizeof opt; |
| 119 | if (getsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &opt, &optlen) == -1) { |
Darren Tucker | 6db8f93 | 2003-11-03 20:07:14 +1100 | [diff] [blame] | 120 | debug("getsockopt TCP_NODELAY: %.100s", strerror(errno)); |
Ben Lindstrom | 1ebd7a5 | 2002-02-26 18:12:51 +0000 | [diff] [blame] | 121 | return; |
| 122 | } |
| 123 | if (opt == 1) { |
| 124 | debug2("fd %d is TCP_NODELAY", fd); |
| 125 | return; |
| 126 | } |
| 127 | opt = 1; |
Ben Lindstrom | 1d568f9 | 2002-12-23 02:44:36 +0000 | [diff] [blame] | 128 | debug2("fd %d setting TCP_NODELAY", fd); |
Ben Lindstrom | 1ebd7a5 | 2002-02-26 18:12:51 +0000 | [diff] [blame] | 129 | if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &opt, sizeof opt) == -1) |
Damien Miller | 398e1cf | 2002-02-05 11:52:13 +1100 | [diff] [blame] | 130 | error("setsockopt TCP_NODELAY: %.100s", strerror(errno)); |
| 131 | } |
| 132 | |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 133 | /* Characters considered whitespace in strsep calls. */ |
| 134 | #define WHITESPACE " \t\r\n" |
Damien Miller | 306d118 | 2006-03-15 12:05:59 +1100 | [diff] [blame] | 135 | #define QUOTE "\"" |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 136 | |
Ben Lindstrom | 4cc240d | 2001-07-04 04:46:56 +0000 | [diff] [blame] | 137 | /* return next token in configuration line */ |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 138 | char * |
| 139 | strdelim(char **s) |
| 140 | { |
| 141 | char *old; |
| 142 | int wspace = 0; |
| 143 | |
| 144 | if (*s == NULL) |
| 145 | return NULL; |
| 146 | |
| 147 | old = *s; |
| 148 | |
Damien Miller | 306d118 | 2006-03-15 12:05:59 +1100 | [diff] [blame] | 149 | *s = strpbrk(*s, WHITESPACE QUOTE "="); |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 150 | if (*s == NULL) |
| 151 | return (old); |
| 152 | |
Damien Miller | 306d118 | 2006-03-15 12:05:59 +1100 | [diff] [blame] | 153 | if (*s[0] == '\"') { |
| 154 | memmove(*s, *s + 1, strlen(*s)); /* move nul too */ |
| 155 | /* Find matching quote */ |
| 156 | if ((*s = strpbrk(*s, QUOTE)) == NULL) { |
| 157 | return (NULL); /* no matching quote */ |
| 158 | } else { |
| 159 | *s[0] = '\0'; |
| 160 | return (old); |
| 161 | } |
| 162 | } |
| 163 | |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 164 | /* Allow only one '=' to be skipped */ |
| 165 | if (*s[0] == '=') |
| 166 | wspace = 1; |
| 167 | *s[0] = '\0'; |
| 168 | |
Damien Miller | 306d118 | 2006-03-15 12:05:59 +1100 | [diff] [blame] | 169 | /* Skip any extra whitespace after first token */ |
Damien Miller | 61c5150 | 2000-08-18 14:01:04 +1000 | [diff] [blame] | 170 | *s += strspn(*s + 1, WHITESPACE) + 1; |
| 171 | if (*s[0] == '=' && !wspace) |
| 172 | *s += strspn(*s + 1, WHITESPACE) + 1; |
| 173 | |
| 174 | return (old); |
| 175 | } |
Kevin Steves | b6e773a | 2001-02-04 13:20:36 +0000 | [diff] [blame] | 176 | |
Ben Lindstrom | 086cf21 | 2001-03-05 05:56:40 +0000 | [diff] [blame] | 177 | struct passwd * |
| 178 | pwcopy(struct passwd *pw) |
| 179 | { |
Damien Miller | 07d86be | 2006-03-26 14:19:21 +1100 | [diff] [blame] | 180 | struct passwd *copy = xcalloc(1, sizeof(*copy)); |
Ben Lindstrom | 4030442 | 2001-03-05 06:22:01 +0000 | [diff] [blame] | 181 | |
Ben Lindstrom | 086cf21 | 2001-03-05 05:56:40 +0000 | [diff] [blame] | 182 | copy->pw_name = xstrdup(pw->pw_name); |
| 183 | copy->pw_passwd = xstrdup(pw->pw_passwd); |
Ben Lindstrom | 4030442 | 2001-03-05 06:22:01 +0000 | [diff] [blame] | 184 | copy->pw_gecos = xstrdup(pw->pw_gecos); |
Ben Lindstrom | 086cf21 | 2001-03-05 05:56:40 +0000 | [diff] [blame] | 185 | copy->pw_uid = pw->pw_uid; |
| 186 | copy->pw_gid = pw->pw_gid; |
Kevin Steves | 8245695 | 2001-06-22 21:14:18 +0000 | [diff] [blame] | 187 | #ifdef HAVE_PW_EXPIRE_IN_PASSWD |
Ben Lindstrom | 3af4d46 | 2001-06-21 03:11:27 +0000 | [diff] [blame] | 188 | copy->pw_expire = pw->pw_expire; |
Kevin Steves | 8245695 | 2001-06-22 21:14:18 +0000 | [diff] [blame] | 189 | #endif |
| 190 | #ifdef HAVE_PW_CHANGE_IN_PASSWD |
Ben Lindstrom | 3af4d46 | 2001-06-21 03:11:27 +0000 | [diff] [blame] | 191 | copy->pw_change = pw->pw_change; |
Kevin Steves | 8245695 | 2001-06-22 21:14:18 +0000 | [diff] [blame] | 192 | #endif |
Ben Lindstrom | 0f68db4 | 2001-03-05 07:57:09 +0000 | [diff] [blame] | 193 | #ifdef HAVE_PW_CLASS_IN_PASSWD |
Ben Lindstrom | 086cf21 | 2001-03-05 05:56:40 +0000 | [diff] [blame] | 194 | copy->pw_class = xstrdup(pw->pw_class); |
Ben Lindstrom | 0f68db4 | 2001-03-05 07:57:09 +0000 | [diff] [blame] | 195 | #endif |
Ben Lindstrom | 086cf21 | 2001-03-05 05:56:40 +0000 | [diff] [blame] | 196 | copy->pw_dir = xstrdup(pw->pw_dir); |
| 197 | copy->pw_shell = xstrdup(pw->pw_shell); |
| 198 | return copy; |
| 199 | } |
| 200 | |
Ben Lindstrom | 4cc240d | 2001-07-04 04:46:56 +0000 | [diff] [blame] | 201 | /* |
| 202 | * Convert ASCII string to TCP/IP port number. |
| 203 | * Port must be >0 and <=65535. |
| 204 | * Return 0 if invalid. |
| 205 | */ |
| 206 | int |
| 207 | a2port(const char *s) |
Ben Lindstrom | 19066a1 | 2001-04-12 23:39:26 +0000 | [diff] [blame] | 208 | { |
| 209 | long port; |
| 210 | char *endp; |
| 211 | |
| 212 | errno = 0; |
| 213 | port = strtol(s, &endp, 0); |
| 214 | if (s == endp || *endp != '\0' || |
| 215 | (errno == ERANGE && (port == LONG_MIN || port == LONG_MAX)) || |
| 216 | port <= 0 || port > 65535) |
| 217 | return 0; |
| 218 | |
| 219 | return port; |
| 220 | } |
| 221 | |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 222 | int |
| 223 | a2tun(const char *s, int *remote) |
| 224 | { |
| 225 | const char *errstr = NULL; |
| 226 | char *sp, *ep; |
| 227 | int tun; |
| 228 | |
| 229 | if (remote != NULL) { |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 230 | *remote = SSH_TUNID_ANY; |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 231 | sp = xstrdup(s); |
| 232 | if ((ep = strchr(sp, ':')) == NULL) { |
| 233 | xfree(sp); |
| 234 | return (a2tun(s, NULL)); |
| 235 | } |
| 236 | ep[0] = '\0'; ep++; |
| 237 | *remote = a2tun(ep, NULL); |
| 238 | tun = a2tun(sp, NULL); |
| 239 | xfree(sp); |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 240 | return (*remote == SSH_TUNID_ERR ? *remote : tun); |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 241 | } |
| 242 | |
| 243 | if (strcasecmp(s, "any") == 0) |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 244 | return (SSH_TUNID_ANY); |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 245 | |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 246 | tun = strtonum(s, 0, SSH_TUNID_MAX, &errstr); |
| 247 | if (errstr != NULL) |
| 248 | return (SSH_TUNID_ERR); |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 249 | |
| 250 | return (tun); |
| 251 | } |
| 252 | |
Ben Lindstrom | 1bda4c8 | 2001-06-05 19:59:08 +0000 | [diff] [blame] | 253 | #define SECONDS 1 |
| 254 | #define MINUTES (SECONDS * 60) |
| 255 | #define HOURS (MINUTES * 60) |
| 256 | #define DAYS (HOURS * 24) |
| 257 | #define WEEKS (DAYS * 7) |
| 258 | |
Ben Lindstrom | 4cc240d | 2001-07-04 04:46:56 +0000 | [diff] [blame] | 259 | /* |
| 260 | * Convert a time string into seconds; format is |
| 261 | * a sequence of: |
| 262 | * time[qualifier] |
| 263 | * |
| 264 | * Valid time qualifiers are: |
| 265 | * <none> seconds |
| 266 | * s|S seconds |
| 267 | * m|M minutes |
| 268 | * h|H hours |
| 269 | * d|D days |
| 270 | * w|W weeks |
| 271 | * |
| 272 | * Examples: |
| 273 | * 90m 90 minutes |
| 274 | * 1h30m 90 minutes |
| 275 | * 2d 2 days |
| 276 | * 1w 1 week |
| 277 | * |
| 278 | * Return -1 if time string is invalid. |
| 279 | */ |
| 280 | long |
| 281 | convtime(const char *s) |
Ben Lindstrom | 1bda4c8 | 2001-06-05 19:59:08 +0000 | [diff] [blame] | 282 | { |
| 283 | long total, secs; |
| 284 | const char *p; |
| 285 | char *endp; |
| 286 | |
| 287 | errno = 0; |
| 288 | total = 0; |
| 289 | p = s; |
| 290 | |
| 291 | if (p == NULL || *p == '\0') |
| 292 | return -1; |
| 293 | |
| 294 | while (*p) { |
| 295 | secs = strtol(p, &endp, 10); |
| 296 | if (p == endp || |
| 297 | (errno == ERANGE && (secs == LONG_MIN || secs == LONG_MAX)) || |
| 298 | secs < 0) |
| 299 | return -1; |
| 300 | |
| 301 | switch (*endp++) { |
| 302 | case '\0': |
| 303 | endp--; |
Damien Miller | 69b7203 | 2006-03-26 14:02:35 +1100 | [diff] [blame] | 304 | break; |
Ben Lindstrom | 1bda4c8 | 2001-06-05 19:59:08 +0000 | [diff] [blame] | 305 | case 's': |
| 306 | case 'S': |
| 307 | break; |
| 308 | case 'm': |
| 309 | case 'M': |
| 310 | secs *= MINUTES; |
| 311 | break; |
| 312 | case 'h': |
| 313 | case 'H': |
| 314 | secs *= HOURS; |
| 315 | break; |
| 316 | case 'd': |
| 317 | case 'D': |
| 318 | secs *= DAYS; |
| 319 | break; |
| 320 | case 'w': |
| 321 | case 'W': |
| 322 | secs *= WEEKS; |
| 323 | break; |
| 324 | default: |
| 325 | return -1; |
| 326 | } |
| 327 | total += secs; |
| 328 | if (total < 0) |
| 329 | return -1; |
| 330 | p = endp; |
| 331 | } |
| 332 | |
| 333 | return total; |
| 334 | } |
| 335 | |
Damien Miller | f91ee4c | 2005-03-01 21:24:33 +1100 | [diff] [blame] | 336 | /* |
| 337 | * Search for next delimiter between hostnames/addresses and ports. |
| 338 | * Argument may be modified (for termination). |
| 339 | * Returns *cp if parsing succeeds. |
| 340 | * *cp is set to the start of the next delimiter, if one was found. |
| 341 | * If this is the last field, *cp is set to NULL. |
| 342 | */ |
| 343 | char * |
| 344 | hpdelim(char **cp) |
| 345 | { |
| 346 | char *s, *old; |
| 347 | |
| 348 | if (cp == NULL || *cp == NULL) |
| 349 | return NULL; |
| 350 | |
| 351 | old = s = *cp; |
| 352 | if (*s == '[') { |
| 353 | if ((s = strchr(s, ']')) == NULL) |
| 354 | return NULL; |
| 355 | else |
| 356 | s++; |
| 357 | } else if ((s = strpbrk(s, ":/")) == NULL) |
| 358 | s = *cp + strlen(*cp); /* skip to end (see first case below) */ |
| 359 | |
| 360 | switch (*s) { |
| 361 | case '\0': |
| 362 | *cp = NULL; /* no more fields*/ |
| 363 | break; |
Darren Tucker | 47eede7 | 2005-03-14 23:08:12 +1100 | [diff] [blame] | 364 | |
Damien Miller | f91ee4c | 2005-03-01 21:24:33 +1100 | [diff] [blame] | 365 | case ':': |
| 366 | case '/': |
| 367 | *s = '\0'; /* terminate */ |
| 368 | *cp = s + 1; |
| 369 | break; |
Darren Tucker | 47eede7 | 2005-03-14 23:08:12 +1100 | [diff] [blame] | 370 | |
Damien Miller | f91ee4c | 2005-03-01 21:24:33 +1100 | [diff] [blame] | 371 | default: |
| 372 | return NULL; |
| 373 | } |
| 374 | |
| 375 | return old; |
| 376 | } |
| 377 | |
Ben Lindstrom | 4529b70 | 2001-05-03 23:39:53 +0000 | [diff] [blame] | 378 | char * |
| 379 | cleanhostname(char *host) |
| 380 | { |
| 381 | if (*host == '[' && host[strlen(host) - 1] == ']') { |
| 382 | host[strlen(host) - 1] = '\0'; |
| 383 | return (host + 1); |
| 384 | } else |
| 385 | return host; |
| 386 | } |
| 387 | |
| 388 | char * |
| 389 | colon(char *cp) |
| 390 | { |
| 391 | int flag = 0; |
| 392 | |
| 393 | if (*cp == ':') /* Leading colon is part of file name. */ |
| 394 | return (0); |
| 395 | if (*cp == '[') |
| 396 | flag = 1; |
| 397 | |
| 398 | for (; *cp; ++cp) { |
| 399 | if (*cp == '@' && *(cp+1) == '[') |
| 400 | flag = 1; |
| 401 | if (*cp == ']' && *(cp+1) == ':' && flag) |
| 402 | return (cp+1); |
| 403 | if (*cp == ':' && !flag) |
| 404 | return (cp); |
| 405 | if (*cp == '/') |
| 406 | return (0); |
| 407 | } |
| 408 | return (0); |
| 409 | } |
| 410 | |
Ben Lindstrom | 4cc240d | 2001-07-04 04:46:56 +0000 | [diff] [blame] | 411 | /* function to assist building execv() arguments */ |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 412 | void |
| 413 | addargs(arglist *args, char *fmt, ...) |
| 414 | { |
| 415 | va_list ap; |
Damien Miller | 3eec6b7 | 2006-01-31 21:49:27 +1100 | [diff] [blame] | 416 | char *cp; |
Darren Tucker | c7a6fc4 | 2004-08-13 21:18:00 +1000 | [diff] [blame] | 417 | u_int nalloc; |
Damien Miller | 3eec6b7 | 2006-01-31 21:49:27 +1100 | [diff] [blame] | 418 | int r; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 419 | |
| 420 | va_start(ap, fmt); |
Damien Miller | 3eec6b7 | 2006-01-31 21:49:27 +1100 | [diff] [blame] | 421 | r = vasprintf(&cp, fmt, ap); |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 422 | va_end(ap); |
Damien Miller | 3eec6b7 | 2006-01-31 21:49:27 +1100 | [diff] [blame] | 423 | if (r == -1) |
| 424 | fatal("addargs: argument too long"); |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 425 | |
Darren Tucker | fb16b24 | 2003-09-22 21:04:23 +1000 | [diff] [blame] | 426 | nalloc = args->nalloc; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 427 | if (args->list == NULL) { |
Darren Tucker | fb16b24 | 2003-09-22 21:04:23 +1000 | [diff] [blame] | 428 | nalloc = 32; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 429 | args->num = 0; |
Darren Tucker | fb16b24 | 2003-09-22 21:04:23 +1000 | [diff] [blame] | 430 | } else if (args->num+2 >= nalloc) |
| 431 | nalloc *= 2; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 432 | |
Damien Miller | 3681209 | 2006-03-26 14:22:47 +1100 | [diff] [blame] | 433 | args->list = xrealloc(args->list, nalloc, sizeof(char *)); |
Darren Tucker | fb16b24 | 2003-09-22 21:04:23 +1000 | [diff] [blame] | 434 | args->nalloc = nalloc; |
Damien Miller | 3eec6b7 | 2006-01-31 21:49:27 +1100 | [diff] [blame] | 435 | args->list[args->num++] = cp; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 436 | args->list[args->num] = NULL; |
| 437 | } |
Darren Tucker | 22cc741 | 2004-12-06 22:47:41 +1100 | [diff] [blame] | 438 | |
Damien Miller | 3eec6b7 | 2006-01-31 21:49:27 +1100 | [diff] [blame] | 439 | void |
| 440 | replacearg(arglist *args, u_int which, char *fmt, ...) |
| 441 | { |
| 442 | va_list ap; |
| 443 | char *cp; |
| 444 | int r; |
| 445 | |
| 446 | va_start(ap, fmt); |
| 447 | r = vasprintf(&cp, fmt, ap); |
| 448 | va_end(ap); |
| 449 | if (r == -1) |
| 450 | fatal("replacearg: argument too long"); |
| 451 | |
| 452 | if (which >= args->num) |
| 453 | fatal("replacearg: tried to replace invalid arg %d >= %d", |
| 454 | which, args->num); |
| 455 | xfree(args->list[which]); |
| 456 | args->list[which] = cp; |
| 457 | } |
| 458 | |
| 459 | void |
| 460 | freeargs(arglist *args) |
| 461 | { |
| 462 | u_int i; |
| 463 | |
| 464 | if (args->list != NULL) { |
| 465 | for (i = 0; i < args->num; i++) |
| 466 | xfree(args->list[i]); |
| 467 | xfree(args->list); |
| 468 | args->nalloc = args->num = 0; |
| 469 | args->list = NULL; |
| 470 | } |
| 471 | } |
| 472 | |
Darren Tucker | 22cc741 | 2004-12-06 22:47:41 +1100 | [diff] [blame] | 473 | /* |
Damien Miller | 5fd38c0 | 2005-05-26 12:02:14 +1000 | [diff] [blame] | 474 | * Expands tildes in the file name. Returns data allocated by xmalloc. |
| 475 | * Warning: this calls getpw*. |
| 476 | */ |
| 477 | char * |
| 478 | tilde_expand_filename(const char *filename, uid_t uid) |
| 479 | { |
| 480 | const char *path; |
| 481 | char user[128], ret[MAXPATHLEN]; |
| 482 | struct passwd *pw; |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 483 | u_int len, slash; |
Damien Miller | 5fd38c0 | 2005-05-26 12:02:14 +1000 | [diff] [blame] | 484 | |
| 485 | if (*filename != '~') |
| 486 | return (xstrdup(filename)); |
| 487 | filename++; |
| 488 | |
| 489 | path = strchr(filename, '/'); |
| 490 | if (path != NULL && path > filename) { /* ~user/path */ |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 491 | slash = path - filename; |
| 492 | if (slash > sizeof(user) - 1) |
Damien Miller | 5fd38c0 | 2005-05-26 12:02:14 +1000 | [diff] [blame] | 493 | fatal("tilde_expand_filename: ~username too long"); |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 494 | memcpy(user, filename, slash); |
| 495 | user[slash] = '\0'; |
Damien Miller | 5fd38c0 | 2005-05-26 12:02:14 +1000 | [diff] [blame] | 496 | if ((pw = getpwnam(user)) == NULL) |
| 497 | fatal("tilde_expand_filename: No such user %s", user); |
| 498 | } else if ((pw = getpwuid(uid)) == NULL) /* ~/path */ |
| 499 | fatal("tilde_expand_filename: No such uid %d", uid); |
| 500 | |
| 501 | if (strlcpy(ret, pw->pw_dir, sizeof(ret)) >= sizeof(ret)) |
| 502 | fatal("tilde_expand_filename: Path too long"); |
| 503 | |
| 504 | /* Make sure directory has a trailing '/' */ |
| 505 | len = strlen(pw->pw_dir); |
| 506 | if ((len == 0 || pw->pw_dir[len - 1] != '/') && |
| 507 | strlcat(ret, "/", sizeof(ret)) >= sizeof(ret)) |
| 508 | fatal("tilde_expand_filename: Path too long"); |
| 509 | |
| 510 | /* Skip leading '/' from specified path */ |
| 511 | if (path != NULL) |
| 512 | filename = path + 1; |
| 513 | if (strlcat(ret, filename, sizeof(ret)) >= sizeof(ret)) |
| 514 | fatal("tilde_expand_filename: Path too long"); |
| 515 | |
| 516 | return (xstrdup(ret)); |
| 517 | } |
| 518 | |
| 519 | /* |
Damien Miller | 6476cad | 2005-06-16 13:18:34 +1000 | [diff] [blame] | 520 | * Expand a string with a set of %[char] escapes. A number of escapes may be |
| 521 | * specified as (char *escape_chars, char *replacement) pairs. The list must |
Darren Tucker | bee73d5 | 2005-07-14 17:05:02 +1000 | [diff] [blame] | 522 | * be terminated by a NULL escape_char. Returns replaced string in memory |
Damien Miller | 6476cad | 2005-06-16 13:18:34 +1000 | [diff] [blame] | 523 | * allocated by xmalloc. |
| 524 | */ |
| 525 | char * |
| 526 | percent_expand(const char *string, ...) |
| 527 | { |
| 528 | #define EXPAND_MAX_KEYS 16 |
| 529 | struct { |
| 530 | const char *key; |
| 531 | const char *repl; |
| 532 | } keys[EXPAND_MAX_KEYS]; |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 533 | u_int num_keys, i, j; |
Damien Miller | 6476cad | 2005-06-16 13:18:34 +1000 | [diff] [blame] | 534 | char buf[4096]; |
| 535 | va_list ap; |
| 536 | |
| 537 | /* Gather keys */ |
| 538 | va_start(ap, string); |
| 539 | for (num_keys = 0; num_keys < EXPAND_MAX_KEYS; num_keys++) { |
| 540 | keys[num_keys].key = va_arg(ap, char *); |
| 541 | if (keys[num_keys].key == NULL) |
| 542 | break; |
| 543 | keys[num_keys].repl = va_arg(ap, char *); |
| 544 | if (keys[num_keys].repl == NULL) |
| 545 | fatal("percent_expand: NULL replacement"); |
| 546 | } |
| 547 | va_end(ap); |
| 548 | |
| 549 | if (num_keys >= EXPAND_MAX_KEYS) |
| 550 | fatal("percent_expand: too many keys"); |
| 551 | |
| 552 | /* Expand string */ |
| 553 | *buf = '\0'; |
| 554 | for (i = 0; *string != '\0'; string++) { |
| 555 | if (*string != '%') { |
| 556 | append: |
| 557 | buf[i++] = *string; |
| 558 | if (i >= sizeof(buf)) |
| 559 | fatal("percent_expand: string too long"); |
| 560 | buf[i] = '\0'; |
| 561 | continue; |
| 562 | } |
| 563 | string++; |
| 564 | if (*string == '%') |
| 565 | goto append; |
| 566 | for (j = 0; j < num_keys; j++) { |
| 567 | if (strchr(keys[j].key, *string) != NULL) { |
| 568 | i = strlcat(buf, keys[j].repl, sizeof(buf)); |
| 569 | if (i >= sizeof(buf)) |
| 570 | fatal("percent_expand: string too long"); |
| 571 | break; |
| 572 | } |
| 573 | } |
| 574 | if (j >= num_keys) |
| 575 | fatal("percent_expand: unknown key %%%c", *string); |
| 576 | } |
| 577 | return (xstrdup(buf)); |
| 578 | #undef EXPAND_MAX_KEYS |
| 579 | } |
| 580 | |
| 581 | /* |
Darren Tucker | 22cc741 | 2004-12-06 22:47:41 +1100 | [diff] [blame] | 582 | * Read an entire line from a public key file into a static buffer, discarding |
| 583 | * lines that exceed the buffer size. Returns 0 on success, -1 on failure. |
| 584 | */ |
| 585 | int |
| 586 | read_keyfile_line(FILE *f, const char *filename, char *buf, size_t bufsz, |
Darren Tucker | f0f9098 | 2004-12-11 13:39:50 +1100 | [diff] [blame] | 587 | u_long *lineno) |
Darren Tucker | 22cc741 | 2004-12-06 22:47:41 +1100 | [diff] [blame] | 588 | { |
| 589 | while (fgets(buf, bufsz, f) != NULL) { |
| 590 | (*lineno)++; |
| 591 | if (buf[strlen(buf) - 1] == '\n' || feof(f)) { |
| 592 | return 0; |
| 593 | } else { |
Darren Tucker | f0f9098 | 2004-12-11 13:39:50 +1100 | [diff] [blame] | 594 | debug("%s: %s line %lu exceeds size limit", __func__, |
| 595 | filename, *lineno); |
Darren Tucker | 22cc741 | 2004-12-06 22:47:41 +1100 | [diff] [blame] | 596 | /* discard remainder of line */ |
Darren Tucker | 47eede7 | 2005-03-14 23:08:12 +1100 | [diff] [blame] | 597 | while (fgetc(f) != '\n' && !feof(f)) |
Darren Tucker | 22cc741 | 2004-12-06 22:47:41 +1100 | [diff] [blame] | 598 | ; /* nothing */ |
| 599 | } |
| 600 | } |
| 601 | return -1; |
| 602 | } |
Damien Miller | 1339002 | 2005-07-06 09:44:19 +1000 | [diff] [blame] | 603 | |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 604 | int |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 605 | tun_open(int tun, int mode) |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 606 | { |
Damien Miller | 62a31c9 | 2005-12-13 20:44:13 +1100 | [diff] [blame] | 607 | #if defined(CUSTOM_SYS_TUN_OPEN) |
| 608 | return (sys_tun_open(tun, mode)); |
Damien Miller | 2dcddbf | 2006-01-01 19:47:05 +1100 | [diff] [blame] | 609 | #elif defined(SSH_TUN_OPENBSD) |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 610 | struct ifreq ifr; |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 611 | char name[100]; |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 612 | int fd = -1, sock; |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 613 | |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 614 | /* Open the tunnel device */ |
| 615 | if (tun <= SSH_TUNID_MAX) { |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 616 | snprintf(name, sizeof(name), "/dev/tun%d", tun); |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 617 | fd = open(name, O_RDWR); |
| 618 | } else if (tun == SSH_TUNID_ANY) { |
| 619 | for (tun = 100; tun >= 0; tun--) { |
| 620 | snprintf(name, sizeof(name), "/dev/tun%d", tun); |
| 621 | if ((fd = open(name, O_RDWR)) >= 0) |
| 622 | break; |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 623 | } |
| 624 | } else { |
Damien Miller | a210d52 | 2006-01-02 23:40:30 +1100 | [diff] [blame] | 625 | debug("%s: invalid tunnel %u", __func__, tun); |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 626 | return (-1); |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 627 | } |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 628 | |
| 629 | if (fd < 0) { |
| 630 | debug("%s: %s open failed: %s", __func__, name, strerror(errno)); |
| 631 | return (-1); |
| 632 | } |
| 633 | |
| 634 | debug("%s: %s mode %d fd %d", __func__, name, mode, fd); |
| 635 | |
| 636 | /* Set the tunnel device operation mode */ |
| 637 | snprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "tun%d", tun); |
| 638 | if ((sock = socket(PF_UNIX, SOCK_STREAM, 0)) == -1) |
| 639 | goto failed; |
| 640 | |
| 641 | if (ioctl(sock, SIOCGIFFLAGS, &ifr) == -1) |
| 642 | goto failed; |
Damien Miller | a1d9a18 | 2006-01-02 23:41:21 +1100 | [diff] [blame] | 643 | |
| 644 | /* Set interface mode */ |
| 645 | ifr.ifr_flags &= ~IFF_UP; |
| 646 | if (mode == SSH_TUNMODE_ETHERNET) |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 647 | ifr.ifr_flags |= IFF_LINK0; |
Damien Miller | a1d9a18 | 2006-01-02 23:41:21 +1100 | [diff] [blame] | 648 | else |
| 649 | ifr.ifr_flags &= ~IFF_LINK0; |
| 650 | if (ioctl(sock, SIOCSIFFLAGS, &ifr) == -1) |
| 651 | goto failed; |
| 652 | |
| 653 | /* Bring interface up */ |
Damien Miller | 7b58e80 | 2005-12-13 19:33:19 +1100 | [diff] [blame] | 654 | ifr.ifr_flags |= IFF_UP; |
| 655 | if (ioctl(sock, SIOCSIFFLAGS, &ifr) == -1) |
| 656 | goto failed; |
| 657 | |
| 658 | close(sock); |
| 659 | return (fd); |
| 660 | |
| 661 | failed: |
| 662 | if (fd >= 0) |
| 663 | close(fd); |
| 664 | if (sock >= 0) |
| 665 | close(sock); |
| 666 | debug("%s: failed to set %s mode %d: %s", __func__, name, |
| 667 | mode, strerror(errno)); |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 668 | return (-1); |
Damien Miller | 62a31c9 | 2005-12-13 20:44:13 +1100 | [diff] [blame] | 669 | #else |
| 670 | error("Tunnel interfaces are not supported on this platform"); |
| 671 | return (-1); |
| 672 | #endif |
Damien Miller | d27b947 | 2005-12-13 19:29:02 +1100 | [diff] [blame] | 673 | } |
| 674 | |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 675 | void |
| 676 | sanitise_stdfd(void) |
| 677 | { |
Damien Miller | 72c5b7d | 2006-01-06 14:50:44 +1100 | [diff] [blame] | 678 | int nullfd, dupfd; |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 679 | |
Damien Miller | 72c5b7d | 2006-01-06 14:50:44 +1100 | [diff] [blame] | 680 | if ((nullfd = dupfd = open(_PATH_DEVNULL, O_RDWR)) == -1) { |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 681 | fprintf(stderr, "Couldn't open /dev/null: %s", strerror(errno)); |
| 682 | exit(1); |
| 683 | } |
Damien Miller | 72c5b7d | 2006-01-06 14:50:44 +1100 | [diff] [blame] | 684 | while (++dupfd <= 2) { |
| 685 | /* Only clobber closed fds */ |
| 686 | if (fcntl(dupfd, F_GETFL, 0) >= 0) |
| 687 | continue; |
| 688 | if (dup2(nullfd, dupfd) == -1) { |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 689 | fprintf(stderr, "dup2: %s", strerror(errno)); |
| 690 | exit(1); |
| 691 | } |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 692 | } |
| 693 | if (nullfd > 2) |
| 694 | close(nullfd); |
| 695 | } |
| 696 | |
Damien Miller | 1339002 | 2005-07-06 09:44:19 +1000 | [diff] [blame] | 697 | char * |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 698 | tohex(const void *vp, size_t l) |
Damien Miller | 1339002 | 2005-07-06 09:44:19 +1000 | [diff] [blame] | 699 | { |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 700 | const u_char *p = (const u_char *)vp; |
Damien Miller | 1339002 | 2005-07-06 09:44:19 +1000 | [diff] [blame] | 701 | char b[3], *r; |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 702 | size_t i, hl; |
| 703 | |
| 704 | if (l > 65536) |
| 705 | return xstrdup("tohex: length > 65536"); |
Damien Miller | 1339002 | 2005-07-06 09:44:19 +1000 | [diff] [blame] | 706 | |
| 707 | hl = l * 2 + 1; |
Damien Miller | 07d86be | 2006-03-26 14:19:21 +1100 | [diff] [blame] | 708 | r = xcalloc(1, hl); |
Damien Miller | 1339002 | 2005-07-06 09:44:19 +1000 | [diff] [blame] | 709 | for (i = 0; i < l; i++) { |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 710 | snprintf(b, sizeof(b), "%02x", p[i]); |
Damien Miller | 1339002 | 2005-07-06 09:44:19 +1000 | [diff] [blame] | 711 | strlcat(r, b, hl); |
| 712 | } |
| 713 | return (r); |
| 714 | } |
| 715 | |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 716 | u_int64_t |
| 717 | get_u64(const void *vp) |
| 718 | { |
| 719 | const u_char *p = (const u_char *)vp; |
| 720 | u_int64_t v; |
| 721 | |
| 722 | v = (u_int64_t)p[0] << 56; |
| 723 | v |= (u_int64_t)p[1] << 48; |
| 724 | v |= (u_int64_t)p[2] << 40; |
| 725 | v |= (u_int64_t)p[3] << 32; |
| 726 | v |= (u_int64_t)p[4] << 24; |
| 727 | v |= (u_int64_t)p[5] << 16; |
| 728 | v |= (u_int64_t)p[6] << 8; |
| 729 | v |= (u_int64_t)p[7]; |
| 730 | |
| 731 | return (v); |
| 732 | } |
| 733 | |
| 734 | u_int32_t |
| 735 | get_u32(const void *vp) |
| 736 | { |
| 737 | const u_char *p = (const u_char *)vp; |
| 738 | u_int32_t v; |
| 739 | |
| 740 | v = (u_int32_t)p[0] << 24; |
| 741 | v |= (u_int32_t)p[1] << 16; |
| 742 | v |= (u_int32_t)p[2] << 8; |
| 743 | v |= (u_int32_t)p[3]; |
| 744 | |
| 745 | return (v); |
| 746 | } |
| 747 | |
| 748 | u_int16_t |
| 749 | get_u16(const void *vp) |
| 750 | { |
| 751 | const u_char *p = (const u_char *)vp; |
| 752 | u_int16_t v; |
| 753 | |
| 754 | v = (u_int16_t)p[0] << 8; |
| 755 | v |= (u_int16_t)p[1]; |
| 756 | |
| 757 | return (v); |
| 758 | } |
| 759 | |
| 760 | void |
| 761 | put_u64(void *vp, u_int64_t v) |
| 762 | { |
| 763 | u_char *p = (u_char *)vp; |
| 764 | |
| 765 | p[0] = (u_char)(v >> 56) & 0xff; |
| 766 | p[1] = (u_char)(v >> 48) & 0xff; |
| 767 | p[2] = (u_char)(v >> 40) & 0xff; |
| 768 | p[3] = (u_char)(v >> 32) & 0xff; |
| 769 | p[4] = (u_char)(v >> 24) & 0xff; |
| 770 | p[5] = (u_char)(v >> 16) & 0xff; |
| 771 | p[6] = (u_char)(v >> 8) & 0xff; |
| 772 | p[7] = (u_char)v & 0xff; |
| 773 | } |
| 774 | |
| 775 | void |
| 776 | put_u32(void *vp, u_int32_t v) |
| 777 | { |
| 778 | u_char *p = (u_char *)vp; |
| 779 | |
| 780 | p[0] = (u_char)(v >> 24) & 0xff; |
| 781 | p[1] = (u_char)(v >> 16) & 0xff; |
| 782 | p[2] = (u_char)(v >> 8) & 0xff; |
| 783 | p[3] = (u_char)v & 0xff; |
| 784 | } |
| 785 | |
| 786 | |
| 787 | void |
| 788 | put_u16(void *vp, u_int16_t v) |
| 789 | { |
| 790 | u_char *p = (u_char *)vp; |
| 791 | |
| 792 | p[0] = (u_char)(v >> 8) & 0xff; |
| 793 | p[1] = (u_char)v & 0xff; |
| 794 | } |