Denis Vlasenko | 9bff26c | 2006-10-20 19:40:44 +0000 | [diff] [blame] | 1 | /* |
| 2 | Copyright (c) 2001-2006, Gerrit Pape |
| 3 | All rights reserved. |
| 4 | |
| 5 | Redistribution and use in source and binary forms, with or without |
| 6 | modification, are permitted provided that the following conditions are met: |
| 7 | |
| 8 | 1. Redistributions of source code must retain the above copyright notice, |
| 9 | this list of conditions and the following disclaimer. |
| 10 | 2. Redistributions in binary form must reproduce the above copyright |
| 11 | notice, this list of conditions and the following disclaimer in the |
| 12 | documentation and/or other materials provided with the distribution. |
| 13 | 3. The name of the author may not be used to endorse or promote products |
| 14 | derived from this software without specific prior written permission. |
| 15 | |
| 16 | THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 19 | EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 20 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 22 | OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 23 | WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 24 | OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 25 | ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | /* Busyboxed by Denis Vlasenko <vda.linux@googlemail.com> */ |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 29 | /* Dependencies on runit_lib.c removed */ |
Denis Vlasenko | 9bff26c | 2006-10-20 19:40:44 +0000 | [diff] [blame] | 30 | |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 31 | #include "busybox.h" |
| 32 | |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 33 | #include <dirent.h> |
| 34 | |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 35 | // Must match constants in chpst_main! |
Denis Vlasenko | c12f530 | 2006-10-06 09:49:47 +0000 | [diff] [blame] | 36 | #define OPT_verbose (option_mask32 & 0x2000) |
| 37 | #define OPT_pgrp (option_mask32 & 0x4000) |
| 38 | #define OPT_nostdin (option_mask32 & 0x8000) |
| 39 | #define OPT_nostdout (option_mask32 & 0x10000) |
| 40 | #define OPT_nostderr (option_mask32 & 0x20000) |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 41 | |
| 42 | static char *set_user; |
| 43 | static char *env_user; |
| 44 | static const char *env_dir; |
| 45 | static long limitd = -2; |
| 46 | static long limits = -2; |
| 47 | static long limitl = -2; |
| 48 | static long limita = -2; |
| 49 | static long limito = -2; |
| 50 | static long limitp = -2; |
| 51 | static long limitf = -2; |
| 52 | static long limitc = -2; |
| 53 | static long limitr = -2; |
| 54 | static long limitt = -2; |
Denis Vlasenko | 1385899 | 2006-10-08 12:49:22 +0000 | [diff] [blame] | 55 | static int nicelvl; |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 56 | static const char *root; |
| 57 | |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 58 | static void suidgid(char *user) |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 59 | { |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 60 | struct bb_uidgid_t ugid; |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 61 | |
Denis Vlasenko | 9a44c4f | 2006-12-28 05:44:47 +0000 | [diff] [blame] | 62 | if (!get_uidgid(&ugid, user, 1)) { |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 63 | bb_error_msg_and_die("unknown user/group: %s", user); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 64 | } |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 65 | if (setgroups(1, &ugid.gid) == -1) |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 66 | bb_perror_msg_and_die("setgroups"); |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 67 | xsetgid(ugid.gid); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 68 | xsetuid(ugid.uid); |
| 69 | } |
| 70 | |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 71 | static void euidgid(char *user) |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 72 | { |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 73 | struct bb_uidgid_t ugid; |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 74 | |
Denis Vlasenko | 9a44c4f | 2006-12-28 05:44:47 +0000 | [diff] [blame] | 75 | if (!get_uidgid(&ugid, user, 1)) { |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 76 | bb_error_msg_and_die("unknown user/group: %s", user); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 77 | } |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 78 | xsetenv("GID", utoa(ugid.gid)); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 79 | xsetenv("UID", utoa(ugid.uid)); |
| 80 | } |
| 81 | |
| 82 | static void edir(const char *directory_name) |
| 83 | { |
| 84 | int wdir; |
| 85 | DIR *dir; |
| 86 | struct dirent *d; |
| 87 | int fd; |
| 88 | |
| 89 | wdir = xopen(".", O_RDONLY | O_NDELAY); |
| 90 | xchdir(directory_name); |
| 91 | dir = opendir("."); |
| 92 | if (!dir) |
| 93 | bb_perror_msg_and_die("opendir %s", directory_name); |
| 94 | for (;;) { |
| 95 | errno = 0; |
| 96 | d = readdir(dir); |
| 97 | if (!d) { |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 98 | if (errno) |
| 99 | bb_perror_msg_and_die("readdir %s", |
| 100 | directory_name); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 101 | break; |
| 102 | } |
| 103 | if (d->d_name[0] == '.') continue; |
| 104 | fd = open(d->d_name, O_RDONLY | O_NDELAY); |
| 105 | if (fd < 0) { |
| 106 | if ((errno == EISDIR) && env_dir) { |
| 107 | if (OPT_verbose) |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 108 | bb_perror_msg("warning: %s/%s is a directory", |
| 109 | directory_name, d->d_name); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 110 | continue; |
| 111 | } else |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 112 | bb_perror_msg_and_die("open %s/%s", |
| 113 | directory_name, d->d_name); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 114 | } |
| 115 | if (fd >= 0) { |
| 116 | char buf[256]; |
| 117 | char *tail; |
| 118 | int size; |
| 119 | |
| 120 | size = safe_read(fd, buf, sizeof(buf)-1); |
| 121 | if (size < 0) |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 122 | bb_perror_msg_and_die("read %s/%s", |
| 123 | directory_name, d->d_name); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 124 | if (size == 0) { |
Denis Vlasenko | 4e6ceb4 | 2006-10-06 08:54:49 +0000 | [diff] [blame] | 125 | unsetenv(d->d_name); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 126 | continue; |
| 127 | } |
| 128 | buf[size] = '\n'; |
| 129 | tail = memchr(buf, '\n', sizeof(buf)); |
| 130 | /* skip trailing whitespace */; |
| 131 | while (1) { |
| 132 | if (tail[0]==' ') tail[0] = '\0'; |
| 133 | if (tail[0]=='\t') tail[0] = '\0'; |
| 134 | if (tail[0]=='\n') tail[0] = '\0'; |
| 135 | if (tail == buf) break; |
| 136 | tail--; |
| 137 | } |
| 138 | xsetenv(d->d_name, buf); |
| 139 | } |
| 140 | } |
| 141 | closedir(dir); |
| 142 | if (fchdir(wdir) == -1) bb_perror_msg_and_die("fchdir"); |
| 143 | close(wdir); |
| 144 | } |
| 145 | |
| 146 | static void limit(int what, long l) |
| 147 | { |
| 148 | struct rlimit r; |
| 149 | |
| 150 | if (getrlimit(what, &r) == -1) bb_perror_msg_and_die("getrlimit"); |
| 151 | if ((l < 0) || (l > r.rlim_max)) |
| 152 | r.rlim_cur = r.rlim_max; |
| 153 | else |
| 154 | r.rlim_cur = l; |
| 155 | if (setrlimit(what, &r) == -1) bb_perror_msg_and_die("setrlimit"); |
| 156 | } |
| 157 | |
| 158 | static void slimit(void) |
| 159 | { |
| 160 | if (limitd >= -1) { |
| 161 | #ifdef RLIMIT_DATA |
| 162 | limit(RLIMIT_DATA, limitd); |
| 163 | #else |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 164 | if (OPT_verbose) bb_error_msg("system does not support %s", |
| 165 | "RLIMIT_DATA"); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 166 | #endif |
| 167 | } |
| 168 | if (limits >= -1) { |
| 169 | #ifdef RLIMIT_STACK |
| 170 | limit(RLIMIT_STACK, limits); |
| 171 | #else |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 172 | if (OPT_verbose) bb_error_msg("system does not support %s", |
| 173 | "RLIMIT_STACK"); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 174 | #endif |
| 175 | } |
| 176 | if (limitl >= -1) { |
| 177 | #ifdef RLIMIT_MEMLOCK |
| 178 | limit(RLIMIT_MEMLOCK, limitl); |
| 179 | #else |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 180 | if (OPT_verbose) bb_error_msg("system does not support %s", |
| 181 | "RLIMIT_MEMLOCK"); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 182 | #endif |
| 183 | } |
| 184 | if (limita >= -1) { |
| 185 | #ifdef RLIMIT_VMEM |
| 186 | limit(RLIMIT_VMEM, limita); |
| 187 | #else |
| 188 | #ifdef RLIMIT_AS |
| 189 | limit(RLIMIT_AS, limita); |
| 190 | #else |
| 191 | if (OPT_verbose) |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 192 | bb_error_msg("system does not support %s", |
| 193 | "RLIMIT_VMEM"); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 194 | #endif |
| 195 | #endif |
| 196 | } |
| 197 | if (limito >= -1) { |
| 198 | #ifdef RLIMIT_NOFILE |
| 199 | limit(RLIMIT_NOFILE, limito); |
| 200 | #else |
| 201 | #ifdef RLIMIT_OFILE |
| 202 | limit(RLIMIT_OFILE, limito); |
| 203 | #else |
| 204 | if (OPT_verbose) |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 205 | bb_error_msg("system does not support %s", |
| 206 | "RLIMIT_NOFILE"); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 207 | #endif |
| 208 | #endif |
| 209 | } |
| 210 | if (limitp >= -1) { |
| 211 | #ifdef RLIMIT_NPROC |
| 212 | limit(RLIMIT_NPROC, limitp); |
| 213 | #else |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 214 | if (OPT_verbose) bb_error_msg("system does not support %s", |
| 215 | "RLIMIT_NPROC"); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 216 | #endif |
| 217 | } |
| 218 | if (limitf >= -1) { |
| 219 | #ifdef RLIMIT_FSIZE |
| 220 | limit(RLIMIT_FSIZE, limitf); |
| 221 | #else |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 222 | if (OPT_verbose) bb_error_msg("system does not support %s", |
| 223 | "RLIMIT_FSIZE"); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 224 | #endif |
| 225 | } |
| 226 | if (limitc >= -1) { |
| 227 | #ifdef RLIMIT_CORE |
| 228 | limit(RLIMIT_CORE, limitc); |
| 229 | #else |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 230 | if (OPT_verbose) bb_error_msg("system does not support %s", |
| 231 | "RLIMIT_CORE"); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 232 | #endif |
| 233 | } |
| 234 | if (limitr >= -1) { |
| 235 | #ifdef RLIMIT_RSS |
| 236 | limit(RLIMIT_RSS, limitr); |
| 237 | #else |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 238 | if (OPT_verbose) bb_error_msg("system does not support %s", |
| 239 | "RLIMIT_RSS"); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 240 | #endif |
| 241 | } |
| 242 | if (limitt >= -1) { |
| 243 | #ifdef RLIMIT_CPU |
| 244 | limit(RLIMIT_CPU, limitt); |
| 245 | #else |
Denis Vlasenko | 83ea643 | 2006-11-16 02:27:24 +0000 | [diff] [blame] | 246 | if (OPT_verbose) bb_error_msg("system does not support %s", |
| 247 | "RLIMIT_CPU"); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 248 | #endif |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | /* argv[0] */ |
| 253 | static void setuidgid(int, char **); |
| 254 | static void envuidgid(int, char **); |
| 255 | static void envdir(int, char **); |
| 256 | static void softlimit(int, char **); |
| 257 | |
Denis Vlasenko | 06af216 | 2007-02-03 17:28:39 +0000 | [diff] [blame] | 258 | int chpst_main(int argc, char **argv); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 259 | int chpst_main(int argc, char **argv) |
| 260 | { |
Denis Vlasenko | 8f8f268 | 2006-10-03 21:00:43 +0000 | [diff] [blame] | 261 | if (applet_name[3] == 'd') envdir(argc, argv); |
| 262 | if (applet_name[1] == 'o') softlimit(argc, argv); |
| 263 | if (applet_name[0] == 's') setuidgid(argc, argv); |
| 264 | if (applet_name[0] == 'e') envuidgid(argc, argv); |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 265 | // otherwise we are chpst |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 266 | |
| 267 | { |
| 268 | char *m,*d,*o,*p,*f,*c,*r,*t,*n; |
Denis Vlasenko | cba9ef5 | 2006-10-10 21:00:47 +0000 | [diff] [blame] | 269 | getopt32(argc, argv, "+u:U:e:m:d:o:p:f:c:r:t:/:n:vP012", |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 270 | &set_user,&env_user,&env_dir, |
| 271 | &m,&d,&o,&p,&f,&c,&r,&t,&root,&n); |
Denis Vlasenko | c12f530 | 2006-10-06 09:49:47 +0000 | [diff] [blame] | 272 | // if (option_mask32 & 0x1) // -u |
| 273 | // if (option_mask32 & 0x2) // -U |
| 274 | // if (option_mask32 & 0x4) // -e |
Denis Vlasenko | 1385899 | 2006-10-08 12:49:22 +0000 | [diff] [blame] | 275 | if (option_mask32 & 0x8) limits = limitl = limita = limitd = xatoul(m); // -m |
| 276 | if (option_mask32 & 0x10) limitd = xatoul(d); // -d |
| 277 | if (option_mask32 & 0x20) limito = xatoul(o); // -o |
| 278 | if (option_mask32 & 0x40) limitp = xatoul(p); // -p |
| 279 | if (option_mask32 & 0x80) limitf = xatoul(f); // -f |
| 280 | if (option_mask32 & 0x100) limitc = xatoul(c); // -c |
| 281 | if (option_mask32 & 0x200) limitr = xatoul(r); // -r |
| 282 | if (option_mask32 & 0x400) limitt = xatoul(t); // -t |
Denis Vlasenko | c12f530 | 2006-10-06 09:49:47 +0000 | [diff] [blame] | 283 | // if (option_mask32 & 0x800) // -/ |
Denis Vlasenko | 1385899 | 2006-10-08 12:49:22 +0000 | [diff] [blame] | 284 | if (option_mask32 & 0x1000) nicelvl = xatoi(n); // -n |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 285 | // The below consts should match #defines at top! |
Denis Vlasenko | c12f530 | 2006-10-06 09:49:47 +0000 | [diff] [blame] | 286 | //if (option_mask32 & 0x2000) OPT_verbose = 1; // -v |
| 287 | //if (option_mask32 & 0x4000) OPT_pgrp = 1; // -P |
| 288 | //if (option_mask32 & 0x8000) OPT_nostdin = 1; // -0 |
| 289 | //if (option_mask32 & 0x10000) OPT_nostdout = 1; // -1 |
| 290 | //if (option_mask32 & 0x20000) OPT_nostderr = 1; // -2 |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 291 | } |
Denis Vlasenko | 4e6ceb4 | 2006-10-06 08:54:49 +0000 | [diff] [blame] | 292 | argv += optind; |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 293 | if (!argv || !*argv) bb_show_usage(); |
Denis Vlasenko | f7996f3 | 2007-01-11 17:20:00 +0000 | [diff] [blame] | 294 | |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 295 | if (OPT_pgrp) setsid(); |
| 296 | if (env_dir) edir(env_dir); |
| 297 | if (root) { |
| 298 | xchdir(root); |
| 299 | if (chroot(".") == -1) |
| 300 | bb_perror_msg_and_die("chroot"); |
| 301 | } |
| 302 | slimit(); |
| 303 | if (nicelvl) { |
| 304 | errno = 0; |
| 305 | if (nice(nicelvl) == -1) |
| 306 | bb_perror_msg_and_die("nice"); |
| 307 | } |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 308 | if (env_user) euidgid(env_user); |
| 309 | if (set_user) suidgid(set_user); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 310 | if (OPT_nostdin) close(0); |
| 311 | if (OPT_nostdout) close(1); |
| 312 | if (OPT_nostderr) close(2); |
Denis Vlasenko | 1d76f43 | 2007-02-06 01:20:12 +0000 | [diff] [blame^] | 313 | BB_EXECVP(argv[0], argv); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 314 | bb_perror_msg_and_die("exec %s", argv[0]); |
| 315 | } |
| 316 | |
| 317 | static void setuidgid(int argc, char **argv) |
| 318 | { |
| 319 | const char *account; |
| 320 | |
| 321 | account = *++argv; |
| 322 | if (!account) bb_show_usage(); |
| 323 | if (!*++argv) bb_show_usage(); |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 324 | suidgid((char*)account); |
Denis Vlasenko | 1d76f43 | 2007-02-06 01:20:12 +0000 | [diff] [blame^] | 325 | BB_EXECVP(argv[0], argv); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 326 | bb_perror_msg_and_die("exec %s", argv[0]); |
| 327 | } |
| 328 | |
| 329 | static void envuidgid(int argc, char **argv) |
| 330 | { |
| 331 | const char *account; |
| 332 | |
| 333 | account = *++argv; |
| 334 | if (!account) bb_show_usage(); |
| 335 | if (!*++argv) bb_show_usage(); |
Denis Vlasenko | de59c0f | 2006-10-05 22:50:22 +0000 | [diff] [blame] | 336 | euidgid((char*)account); |
Denis Vlasenko | 1d76f43 | 2007-02-06 01:20:12 +0000 | [diff] [blame^] | 337 | BB_EXECVP(argv[0], argv); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 338 | bb_perror_msg_and_die("exec %s", argv[0]); |
| 339 | } |
| 340 | |
| 341 | static void envdir(int argc, char **argv) |
| 342 | { |
| 343 | const char *dir; |
| 344 | |
| 345 | dir = *++argv; |
| 346 | if (!dir) bb_show_usage(); |
| 347 | if (!*++argv) bb_show_usage(); |
| 348 | edir(dir); |
Denis Vlasenko | 1d76f43 | 2007-02-06 01:20:12 +0000 | [diff] [blame^] | 349 | BB_EXECVP(argv[0], argv); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 350 | bb_perror_msg_and_die("exec %s", argv[0]); |
| 351 | } |
| 352 | |
| 353 | static void softlimit(int argc, char **argv) |
| 354 | { |
| 355 | char *a,*c,*d,*f,*l,*m,*o,*p,*r,*s,*t; |
Denis Vlasenko | cba9ef5 | 2006-10-10 21:00:47 +0000 | [diff] [blame] | 356 | getopt32(argc, argv, "+a:c:d:f:l:m:o:p:r:s:t:", |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 357 | &a,&c,&d,&f,&l,&m,&o,&p,&r,&s,&t); |
Denis Vlasenko | 1385899 | 2006-10-08 12:49:22 +0000 | [diff] [blame] | 358 | if (option_mask32 & 0x001) limita = xatoul(a); // -a |
| 359 | if (option_mask32 & 0x002) limitc = xatoul(c); // -c |
| 360 | if (option_mask32 & 0x004) limitd = xatoul(d); // -d |
| 361 | if (option_mask32 & 0x008) limitf = xatoul(f); // -f |
| 362 | if (option_mask32 & 0x010) limitl = xatoul(l); // -l |
| 363 | if (option_mask32 & 0x020) limits = limitl = limita = limitd = xatoul(m); // -m |
| 364 | if (option_mask32 & 0x040) limito = xatoul(o); // -o |
| 365 | if (option_mask32 & 0x080) limitp = xatoul(p); // -p |
| 366 | if (option_mask32 & 0x100) limitr = xatoul(r); // -r |
| 367 | if (option_mask32 & 0x200) limits = xatoul(s); // -s |
| 368 | if (option_mask32 & 0x400) limitt = xatoul(t); // -t |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 369 | argv += optind; |
| 370 | if (!argv[0]) bb_show_usage(); |
| 371 | slimit(); |
Denis Vlasenko | 1d76f43 | 2007-02-06 01:20:12 +0000 | [diff] [blame^] | 372 | BB_EXECVP(argv[0], argv); |
Denis Vlasenko | f0a97fb | 2006-10-03 17:52:24 +0000 | [diff] [blame] | 373 | bb_perror_msg_and_die("exec %s", argv[0]); |
| 374 | } |