static void fileaction_setowngrp(char *filename, int fileref)
{
int uid, gid;
uid = xuname2uid(rpm_getstr(TAG_FILEUSERNAME, fileref));
gid = xgroup2gid(rpm_getstr(TAG_FILEGROUPNAME, fileref));
chown(filename, uid, gid);
}
int addgroup_main(int argc UNUSED_PARAM, char **argv)
{
unsigned opts;
unsigned gid = 0;
/* need to be root */
if (geteuid()) {
bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
}
#if ENABLE_FEATURE_ADDGROUP_LONG_OPTIONS
applet_long_options = addgroup_longopts;
#endif
/* Syntax:
* addgroup group
* addgroup -g num group
* addgroup user group
* Check for min, max and missing args */
opt_complementary = "-1:?2:g+";
opts = getopt32(argv, "g:S", &gid);
/* move past the commandline options */
argv += optind;
//argc -= optind;
#if ENABLE_FEATURE_ADDUSER_TO_GROUP
if (argv[1]) {
struct group *gr;
if (opts & OPT_GID) {
/* -g was there, but "addgroup -g num user group"
* is a no-no */
bb_show_usage();
}
/* check if group and user exist */
xuname2uid(argv[0]); /* unknown user: exit */
gr = xgetgrnam(argv[1]); /* unknown group: exit */
/* check if user is already in this group */
for (; *(gr->gr_mem) != NULL; (gr->gr_mem)++) {
if (!strcmp(argv[0], *(gr->gr_mem))) {
/* user is already in group: do nothing */
return EXIT_SUCCESS;
}
}
if (update_passwd(bb_path_group_file, argv[1], NULL, argv[0]) < 0) {
return EXIT_FAILURE;
}
# if ENABLE_FEATURE_SHADOWPASSWDS
update_passwd(bb_path_gshadow_file, argv[1], NULL, argv[0]);
# endif
} else
#endif /* ENABLE_FEATURE_ADDUSER_TO_GROUP */
{
die_if_bad_username(argv[0]);
new_group(argv[0], gid);
}
/* Reached only on success */
return EXIT_SUCCESS;
}
int start_stop_daemon_main(int argc UNUSED_PARAM, char **argv)
{
unsigned opt;
char *signame;
char *startas;
char *chuid;
#if ENABLE_FEATURE_START_STOP_DAEMON_FANCY
// char *retry_arg = NULL;
// int retries = -1;
char *opt_N;
#endif
INIT_G();
opt = GETOPT32(argv, "^"
"KSbqtma:n:s:u:c:x:p:"
IF_FEATURE_START_STOP_DAEMON_FANCY("ovN:R:")
/* -K or -S is required; they are mutually exclusive */
/* -p is required if -m is given */
/* -xpun (at least one) is required if -K is given */
/* -xa (at least one) is required if -S is given */
/* -q turns off -v */
"\0"
"K:S:K--S:S--K:m?p:K?xpun:S?xa"
IF_FEATURE_START_STOP_DAEMON_FANCY("q-v"),
LONGOPTS
&startas, &cmdname, &signame, &userspec, &chuid, &execname, &pidfile
IF_FEATURE_START_STOP_DAEMON_FANCY(,&opt_N)
/* We accept and ignore -R <param> / --retry <param> */
IF_FEATURE_START_STOP_DAEMON_FANCY(,NULL)
);
if (opt & OPT_s) {
signal_nr = get_signum(signame);
if (signal_nr < 0) bb_show_usage();
}
if (!(opt & OPT_a))
startas = execname;
if (!execname) /* in case -a is given and -x is not */
execname = startas;
if (execname) {
G.execname_sizeof = strlen(execname) + 1;
G.execname_cmpbuf = xmalloc(G.execname_sizeof + 1);
}
// IF_FEATURE_START_STOP_DAEMON_FANCY(
// if (retry_arg)
// retries = xatoi_positive(retry_arg);
// )
//argc -= optind;
argv += optind;
if (userspec) {
user_id = bb_strtou(userspec, NULL, 10);
if (errno)
user_id = xuname2uid(userspec);
}
/* Both start and stop need to know current processes */
do_procinit();
if (opt & CTX_STOP) {
int i = do_stop();
return (opt & OPT_OKNODO) ? 0 : (i <= 0);
}
if (G.found_procs) {
if (!QUIET)
printf("%s is already running\n%u\n", execname, (unsigned)G.found_procs->pid);
return !(opt & OPT_OKNODO);
}
#ifdef OLDER_VERSION_OF_X
if (execname)
xstat(execname, &G.execstat);
#endif
*--argv = startas;
if (opt & OPT_BACKGROUND) {
#if BB_MMU
bb_daemonize(DAEMON_DEVNULL_STDIO + DAEMON_CLOSE_EXTRA_FDS + DAEMON_DOUBLE_FORK);
/* DAEMON_DEVNULL_STDIO is superfluous -
* it's always done by bb_daemonize() */
#else
/* Daemons usually call bb_daemonize_or_rexec(), but SSD can do
* without: SSD is not itself a daemon, it _execs_ a daemon.
* The usual NOMMU problem of "child can't run indefinitely,
* it must exec" does not bite us: we exec anyway.
*/
pid_t pid = xvfork();
if (pid != 0) {
/* parent */
/* why _exit? the child may have changed the stack,
* so "return 0" may do bad things */
_exit(EXIT_SUCCESS);
}
/* Child */
setsid(); /* detach from controlling tty */
/* Redirect stdio to /dev/null, close extra FDs */
bb_daemon_helper(DAEMON_DEVNULL_STDIO + DAEMON_CLOSE_EXTRA_FDS);
#endif
}
if (opt & OPT_MAKEPID) {
/* User wants _us_ to make the pidfile */
write_pidfile(pidfile);
}
if (opt & OPT_c) {
struct bb_uidgid_t ugid;
parse_chown_usergroup_or_die(&ugid, chuid);
if (ugid.uid != (uid_t) -1L) {
struct passwd *pw = xgetpwuid(ugid.uid);
if (ugid.gid != (gid_t) -1L)
pw->pw_gid = ugid.gid;
/* initgroups, setgid, setuid: */
change_identity(pw);
} else if (ugid.gid != (gid_t) -1L) {
xsetgid(ugid.gid);
setgroups(1, &ugid.gid);
}
}
#if ENABLE_FEATURE_START_STOP_DAEMON_FANCY
if (opt & OPT_NICELEVEL) {
/* Set process priority */
int prio = getpriority(PRIO_PROCESS, 0) + xatoi_range(opt_N, INT_MIN/2, INT_MAX/2);
if (setpriority(PRIO_PROCESS, 0, prio) < 0) {
bb_perror_msg_and_die("setpriority(%d)", prio);
}
}
#endif
execvp(startas, argv);
bb_perror_msg_and_die("can't execute '%s'", startas);
}
int tunctl_main(int argc UNUSED_PARAM, char **argv)
{
struct ifreq ifr;
int fd;
const char *opt_name = "tap%d";
const char *opt_device = "/dev/net/tun";
#if ENABLE_FEATURE_TUNCTL_UG
const char *opt_user, *opt_group;
long user = -1, group = -1;
#endif
unsigned opts;
enum {
OPT_f = 1 << 0, // control device name (/dev/net/tun)
OPT_t = 1 << 1, // create named interface
OPT_d = 1 << 2, // delete named interface
#if ENABLE_FEATURE_TUNCTL_UG
OPT_u = 1 << 3, // set new interface owner
OPT_g = 1 << 4, // set new interface group
OPT_b = 1 << 5, // brief output
#endif
};
opt_complementary = "=0:t--d:d--t"; // no arguments; t ^ d
opts = getopt32(argv, "f:t:d:" IF_FEATURE_TUNCTL_UG("u:g:b"),
&opt_device, &opt_name, &opt_name
IF_FEATURE_TUNCTL_UG(, &opt_user, &opt_group));
// select device
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
strncpy_IFNAMSIZ(ifr.ifr_name, opt_name);
// open device
fd = xopen(opt_device, O_RDWR);
IOCTL(fd, TUNSETIFF, (void *)&ifr);
// delete?
if (opts & OPT_d) {
IOCTL(fd, TUNSETPERSIST, (void *)(uintptr_t)0);
printf("Set '%s' nonpersistent\n", ifr.ifr_name);
return EXIT_SUCCESS;
}
// create
#if ENABLE_FEATURE_TUNCTL_UG
if (opts & OPT_g) {
group = xgroup2gid(opt_group);
IOCTL(fd, TUNSETGROUP, (void *)(uintptr_t)group);
} else
user = geteuid();
if (opts & OPT_u)
user = xuname2uid(opt_user);
IOCTL(fd, TUNSETOWNER, (void *)(uintptr_t)user);
#endif
IOCTL(fd, TUNSETPERSIST, (void *)(uintptr_t)1);
// show info
#if ENABLE_FEATURE_TUNCTL_UG
if (opts & OPT_b) {
puts(ifr.ifr_name);
} else {
printf("Set '%s' %spersistent", ifr.ifr_name, "");
printf(" and owned by uid %ld", user);
if (group != -1)
printf(" gid %ld", group);
bb_putchar('\n');
}
#else
puts(ifr.ifr_name);
#endif
return EXIT_SUCCESS;
}
int chpasswd_main(int argc UNUSED_PARAM, char **argv)
{
char *name;
const char *algo = CONFIG_FEATURE_DEFAULT_PASSWD_ALGO;
int opt;
if (getuid() != 0)
bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
opt = getopt32long(argv, "^" "emc:" "\0" "m--ec:e--mc:c--em",
chpasswd_longopts,
&algo
);
while ((name = xmalloc_fgetline(stdin)) != NULL) {
char *free_me;
char *pass;
int rc;
pass = strchr(name, ':');
if (!pass)
bb_error_msg_and_die("missing new password");
*pass++ = '\0';
xuname2uid(name); /* dies if there is no such user */
free_me = NULL;
if (!(opt & OPT_ENC)) {
char salt[MAX_PW_SALT_LEN];
if (opt & OPT_MD5) {
/* Force MD5 if the -m flag is set */
algo = "md5";
}
crypt_make_pw_salt(salt, algo);
free_me = pass = pw_encrypt(pass, salt, 0);
}
/* This is rather complex: if user is not found in /etc/shadow,
* we try to find & change his passwd in /etc/passwd */
#if ENABLE_FEATURE_SHADOWPASSWDS
rc = update_passwd(bb_path_shadow_file, name, pass, NULL);
if (rc > 0) /* password in /etc/shadow was updated */
pass = (char*)"x";
if (rc >= 0)
/* 0 = /etc/shadow missing (not an error), >0 = passwd changed in /etc/shadow */
#endif
rc = update_passwd(bb_path_passwd_file, name, pass, NULL);
/* LOGMODE_BOTH logs to syslog also */
logmode = LOGMODE_BOTH;
if (rc < 0)
bb_error_msg_and_die("an error occurred updating password for %s", name);
if (rc)
bb_error_msg("password for '%s' changed", name);
logmode = LOGMODE_STDIO;
free(name);
free(free_me);
}
return EXIT_SUCCESS;
}