-#include "busybox.h"
+/*
+Copyright (c) 2001-2006, Gerrit Pape
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ 3. The name of the author may not be used to endorse or promote products
+ derived from this software without specific prior written permission.
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <grp.h>
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
-#include "uidgid.h"
+/* Busyboxed by Denis Vlasenko <vda.linux@googlemail.com> */
+/* Dependencies on runit_lib.c removed */
+
+#include "busybox.h"
-#include <sys/types.h>
#include <dirent.h>
-static unsigned option_mask;
-// Must meatch constants in chpst_main!
-#define OPT_verbose (option_mask & 0x2000)
-#define OPT_pgrp (option_mask & 0x4000)
-#define OPT_nostdin (option_mask & 0x8000)
-#define OPT_nostdout (option_mask & 0x10000)
-#define OPT_nostderr (option_mask & 0x20000)
+// Must match constants in chpst_main!
+#define OPT_verbose (option_mask32 & 0x2000)
+#define OPT_pgrp (option_mask32 & 0x4000)
+#define OPT_nostdin (option_mask32 & 0x8000)
+#define OPT_nostdout (option_mask32 & 0x10000)
+#define OPT_nostderr (option_mask32 & 0x20000)
static char *set_user;
static char *env_user;
static long limitc = -2;
static long limitr = -2;
static long limitt = -2;
-static long nicelvl;
+static int nicelvl;
static const char *root;
-static void suidgid(char *user, unsigned dogrp)
+static void suidgid(char *user)
{
- struct uidgid ugid;
+ struct bb_uidgid_t ugid;
- if (!uidgid_get(&ugid, user, dogrp)) {
- if (dogrp)
- bb_error_msg_and_die("unknown user/group: %s", user);
- else
- bb_error_msg_and_die("unknown account: %s", user);
+ if (!uidgid_get(&ugid, user)) {
+ bb_error_msg_and_die("unknown user/group: %s", user);
}
- if (setgroups(ugid.gids, ugid.gid) == -1)
+ if (setgroups(1, &ugid.gid) == -1)
bb_perror_msg_and_die("setgroups");
- xsetgid(*ugid.gid);
+ xsetgid(ugid.gid);
xsetuid(ugid.uid);
}
-static void euidgid(char *user, unsigned dogrp)
+static void euidgid(char *user)
{
- struct uidgid ugid;
+ struct bb_uidgid_t ugid;
- if (!uidgid_get(&ugid, user, dogrp)) {
- if (dogrp)
- bb_error_msg_and_die("unknown user/group: %s", user);
- else
- bb_error_msg_and_die("unknown account: %s", user);
+ if (!uidgid_get(&ugid, user)) {
+ bb_error_msg_and_die("unknown user/group: %s", user);
}
- //FIXME: ultoa needed here!
- xsetenv("GID", utoa(*ugid.gid));
+ xsetenv("GID", utoa(ugid.gid));
xsetenv("UID", utoa(ugid.uid));
}
errno = 0;
d = readdir(dir);
if (!d) {
- if (errno) bb_perror_msg_and_die("readdir %s", directory_name);
+ if (errno)
+ bb_perror_msg_and_die("readdir %s",
+ directory_name);
break;
}
if (d->d_name[0] == '.') continue;
if (fd < 0) {
if ((errno == EISDIR) && env_dir) {
if (OPT_verbose)
- bb_perror_msg("warning: %s/%s is a directory", directory_name,
- d->d_name);
+ bb_perror_msg("warning: %s/%s is a directory",
+ directory_name, d->d_name);
continue;
} else
- bb_perror_msg_and_die("open %s/%s", directory_name, /* was exiting 111 */
- d->d_name);
+ bb_perror_msg_and_die("open %s/%s",
+ directory_name, d->d_name);
}
if (fd >= 0) {
char buf[256];
size = safe_read(fd, buf, sizeof(buf)-1);
if (size < 0)
- bb_perror_msg_and_die("read %s/%s", directory_name, /* was exiting 111 */
- d->d_name);
+ bb_perror_msg_and_die("read %s/%s",
+ directory_name, d->d_name);
if (size == 0) {
- xsetenv(d->d_name, "");
+ unsetenv(d->d_name);
continue;
}
buf[size] = '\n';
#ifdef RLIMIT_DATA
limit(RLIMIT_DATA, limitd);
#else
- if (OPT_verbose) bb_error_msg("system does not support %s", "RLIMIT_DATA");
+ if (OPT_verbose) bb_error_msg("system does not support %s",
+ "RLIMIT_DATA");
#endif
}
if (limits >= -1) {
#ifdef RLIMIT_STACK
limit(RLIMIT_STACK, limits);
#else
- if (OPT_verbose) bb_error_msg("system does not support %s", "RLIMIT_STACK");
+ if (OPT_verbose) bb_error_msg("system does not support %s",
+ "RLIMIT_STACK");
#endif
}
if (limitl >= -1) {
#ifdef RLIMIT_MEMLOCK
limit(RLIMIT_MEMLOCK, limitl);
#else
- if (OPT_verbose) bb_error_msg("system does not support %s", "RLIMIT_MEMLOCK");
+ if (OPT_verbose) bb_error_msg("system does not support %s",
+ "RLIMIT_MEMLOCK");
#endif
}
if (limita >= -1) {
limit(RLIMIT_AS, limita);
#else
if (OPT_verbose)
- bb_error_msg("system does not support %s", "RLIMIT_VMEM");
+ bb_error_msg("system does not support %s",
+ "RLIMIT_VMEM");
#endif
#endif
}
limit(RLIMIT_OFILE, limito);
#else
if (OPT_verbose)
- bb_error_msg("system does not support %s", "RLIMIT_NOFILE");
+ bb_error_msg("system does not support %s",
+ "RLIMIT_NOFILE");
#endif
#endif
}
#ifdef RLIMIT_NPROC
limit(RLIMIT_NPROC, limitp);
#else
- if (OPT_verbose) bb_error_msg("system does not support %s", "RLIMIT_NPROC");
+ if (OPT_verbose) bb_error_msg("system does not support %s",
+ "RLIMIT_NPROC");
#endif
}
if (limitf >= -1) {
#ifdef RLIMIT_FSIZE
limit(RLIMIT_FSIZE, limitf);
#else
- if (OPT_verbose) bb_error_msg("system does not support %s", "RLIMIT_FSIZE");
+ if (OPT_verbose) bb_error_msg("system does not support %s",
+ "RLIMIT_FSIZE");
#endif
}
if (limitc >= -1) {
#ifdef RLIMIT_CORE
limit(RLIMIT_CORE, limitc);
#else
- if (OPT_verbose) bb_error_msg("system does not support %s", "RLIMIT_CORE");
+ if (OPT_verbose) bb_error_msg("system does not support %s",
+ "RLIMIT_CORE");
#endif
}
if (limitr >= -1) {
#ifdef RLIMIT_RSS
limit(RLIMIT_RSS, limitr);
#else
- if (OPT_verbose) bb_error_msg("system does not support %s", "RLIMIT_RSS");
+ if (OPT_verbose) bb_error_msg("system does not support %s",
+ "RLIMIT_RSS");
#endif
}
if (limitt >= -1) {
#ifdef RLIMIT_CPU
limit(RLIMIT_CPU, limitt);
#else
- if (OPT_verbose) bb_error_msg("system does not support %s", "RLIMIT_CPU");
+ if (OPT_verbose) bb_error_msg("system does not support %s",
+ "RLIMIT_CPU");
#endif
}
}
int chpst_main(int argc, char **argv)
{
- if (bb_applet_name[3] == 'd') envdir(argc, argv);
- if (bb_applet_name[1] == 'o') softlimit(argc, argv);
- if (bb_applet_name[0] == 's') setuidgid(argc, argv);
- if (bb_applet_name[0] == 'e') envuidgid(argc, argv);
+ if (applet_name[3] == 'd') envdir(argc, argv);
+ if (applet_name[1] == 'o') softlimit(argc, argv);
+ if (applet_name[0] == 's') setuidgid(argc, argv);
+ if (applet_name[0] == 'e') envuidgid(argc, argv);
// otherwise we are.......... chpst
{
char *m,*d,*o,*p,*f,*c,*r,*t,*n;
- option_mask = bb_getopt_ulflags(argc, argv, "u:U:e:m:d:o:p:f:c:r:t:/:n:vP012",
+ getopt32(argc, argv, "+u:U:e:m:d:o:p:f:c:r:t:/:n:vP012",
&set_user,&env_user,&env_dir,
&m,&d,&o,&p,&f,&c,&r,&t,&root,&n);
- // if (option_mask & 0x1) // -u
- // if (option_mask & 0x2) // -U
- // if (option_mask & 0x4) // -e
- if (option_mask & 0x8) limits = limitl = limita = limitd = bb_xgetularg10(m); // -m
- if (option_mask & 0x10) limitd = bb_xgetularg10(d); // -d
- if (option_mask & 0x20) limito = bb_xgetularg10(o); // -o
- if (option_mask & 0x40) limitp = bb_xgetularg10(p); // -p
- if (option_mask & 0x80) limitf = bb_xgetularg10(f); // -f
- if (option_mask & 0x100) limitc = bb_xgetularg10(c); // -c
- if (option_mask & 0x200) limitr = bb_xgetularg10(r); // -r
- if (option_mask & 0x400) limitt = bb_xgetularg10(t); // -t
- // if (option_mask & 0x800) // -/
- if (option_mask & 0x1000) nicelvl = bb_xgetlarg_bnd_sfx(n, 10, -20, 20, NULL); // -n
+ // if (option_mask32 & 0x1) // -u
+ // if (option_mask32 & 0x2) // -U
+ // if (option_mask32 & 0x4) // -e
+ if (option_mask32 & 0x8) limits = limitl = limita = limitd = xatoul(m); // -m
+ if (option_mask32 & 0x10) limitd = xatoul(d); // -d
+ if (option_mask32 & 0x20) limito = xatoul(o); // -o
+ if (option_mask32 & 0x40) limitp = xatoul(p); // -p
+ if (option_mask32 & 0x80) limitf = xatoul(f); // -f
+ if (option_mask32 & 0x100) limitc = xatoul(c); // -c
+ if (option_mask32 & 0x200) limitr = xatoul(r); // -r
+ if (option_mask32 & 0x400) limitt = xatoul(t); // -t
+ // if (option_mask32 & 0x800) // -/
+ if (option_mask32 & 0x1000) nicelvl = xatoi(n); // -n
// The below consts should match #defines at top!
- //if (option_mask & 0x2000) OPT_verbose = 1; // -v
- //if (option_mask & 0x4000) OPT_pgrp = 1; // -P
- //if (option_mask & 0x8000) OPT_nostdin = 1; // -0
- //if (option_mask & 0x10000) OPT_nostdout = 1; // -1
- //if (option_mask & 0x20000) OPT_nostderr = 1; // -2
+ //if (option_mask32 & 0x2000) OPT_verbose = 1; // -v
+ //if (option_mask32 & 0x4000) OPT_pgrp = 1; // -P
+ //if (option_mask32 & 0x8000) OPT_nostdin = 1; // -0
+ //if (option_mask32 & 0x10000) OPT_nostdout = 1; // -1
+ //if (option_mask32 & 0x20000) OPT_nostderr = 1; // -2
}
+ argv += optind;
if (!argv || !*argv) bb_show_usage();
if (OPT_pgrp) setsid();
if (nice(nicelvl) == -1)
bb_perror_msg_and_die("nice");
}
- if (env_user) euidgid(env_user, 1);
- if (set_user) suidgid(set_user, 1);
+ if (env_user) euidgid(env_user);
+ if (set_user) suidgid(set_user);
if (OPT_nostdin) close(0);
if (OPT_nostdout) close(1);
if (OPT_nostderr) close(2);
account = *++argv;
if (!account) bb_show_usage();
if (!*++argv) bb_show_usage();
- suidgid((char*)account, 0);
+ suidgid((char*)account);
execvp(argv[0], argv);
bb_perror_msg_and_die("exec %s", argv[0]);
}
account = *++argv;
if (!account) bb_show_usage();
if (!*++argv) bb_show_usage();
- euidgid((char*)account, 0);
+ euidgid((char*)account);
execvp(argv[0], argv);
bb_perror_msg_and_die("exec %s", argv[0]);
}
static void softlimit(int argc, char **argv)
{
char *a,*c,*d,*f,*l,*m,*o,*p,*r,*s,*t;
- option_mask = bb_getopt_ulflags(argc, argv, "a:c:d:f:l:m:o:p:r:s:t:",
+ getopt32(argc, argv, "+a:c:d:f:l:m:o:p:r:s:t:",
&a,&c,&d,&f,&l,&m,&o,&p,&r,&s,&t);
- if (option_mask & 0x001) limita = bb_xgetularg10(a); // -a
- if (option_mask & 0x002) limitc = bb_xgetularg10(c); // -c
- if (option_mask & 0x004) limitd = bb_xgetularg10(d); // -d
- if (option_mask & 0x008) limitf = bb_xgetularg10(f); // -f
- if (option_mask & 0x010) limitl = bb_xgetularg10(l); // -l
- if (option_mask & 0x020) limits = limitl = limita = limitd = bb_xgetularg10(m); // -m
- if (option_mask & 0x040) limito = bb_xgetularg10(o); // -o
- if (option_mask & 0x080) limitp = bb_xgetularg10(p); // -p
- if (option_mask & 0x100) limitr = bb_xgetularg10(r); // -r
- if (option_mask & 0x200) limits = bb_xgetularg10(s); // -s
- if (option_mask & 0x400) limitt = bb_xgetularg10(t); // -t
+ if (option_mask32 & 0x001) limita = xatoul(a); // -a
+ if (option_mask32 & 0x002) limitc = xatoul(c); // -c
+ if (option_mask32 & 0x004) limitd = xatoul(d); // -d
+ if (option_mask32 & 0x008) limitf = xatoul(f); // -f
+ if (option_mask32 & 0x010) limitl = xatoul(l); // -l
+ if (option_mask32 & 0x020) limits = limitl = limita = limitd = xatoul(m); // -m
+ if (option_mask32 & 0x040) limito = xatoul(o); // -o
+ if (option_mask32 & 0x080) limitp = xatoul(p); // -p
+ if (option_mask32 & 0x100) limitr = xatoul(r); // -r
+ if (option_mask32 & 0x200) limits = xatoul(s); // -s
+ if (option_mask32 & 0x400) limitt = xatoul(t); // -t
argv += optind;
if (!argv[0]) bb_show_usage();
slimit();