aniani/icecast-server
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Code

chroot and setuid interacted badly in the previous version. Fixed now.

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svn path=/trunk/icecast/; revision=3311
This commit is contained in:
Michael Smith 2002-05-20 13:25:31 +00:00
parent 4d884d832f
commit 86c78a6be9
1 changed files with 39 additions and 32 deletions
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55
src/main.c
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@ -162,14 +162,35 @@ static void _server_proc(void)
sock_close(global.serversock);
}
#ifdef CHROOT
/* chroot the process. Watch out - we need to do this before starting other
* threads */
* threads. Change uid as well, after figuring out uid _first_ */
static void _chroot_setup(void)
static void _ch_root_uid__setup(void)
{
ice_config_t *conf = config_get_config();
#ifdef CHUID
struct passwd *user;
struct group *group;
uid_t uid=-1;
gid_t gid=-1;
if(conf->chuid)
{
user = getpwnam(conf->user);
group = getgrnam(conf->group);
if(user)
uid = user->pw_uid;
else
fprintf(stderr, "Couldn't find user \"%s\" in password file\n", conf->user);
if(group)
gid = group->gr_gid;
else
fprintf(stderr, "Couldn't find group \"%s\" in groups file\n", conf->group);
}
#endif
#ifdef CHROOT
if (conf->chroot)
{
if(getuid()) /* root check */
@ -186,16 +207,8 @@ static void _chroot_setup(void)
fprintf(stdout, "Changed root successfully to \"%s\".\n", conf->base_dir);
}
}
#endif
#ifdef CHUID
/* change uid and gid */
static void _chuid_setup(void)
{
ice_config_t *conf = config_get_config();
struct passwd *user;
struct group *group;
if(conf->chuid)
{
@ -205,22 +218,22 @@ static void _chuid_setup(void)
return;
}
user = getpwnam(conf->user);
group = getgrnam(conf->group);
if(!setgid(group->gr_gid))
if(gid != -1) {
if(!setgid(gid))
fprintf(stdout, "Changed groupid to %i.\n", group->gr_gid);
else
fprintf(stdout, "Error changing groupid: %s.\n", strerror(errno));
}
if(!setuid(user->pw_uid))
if(uid != -1) {
if(!setuid(uid))
fprintf(stdout, "Changed userid to %i.\n", user->pw_uid);
else
fprintf(stdout, "Error changing userid: %s.\n", strerror(errno));
}
}
#endif
}
int main(int argc, char **argv)
{
@ -263,15 +276,9 @@ int main(int argc, char **argv)
/* override config file options with commandline options */
config_parse_cmdline(argc, argv);
#ifdef CHROOT
_chroot_setup(); /* Perform chroot, if requested */
#endif
_server_proc_init(); /* Bind socket, before we change userid */
#ifdef CHUID
_chuid_setup(); /* change user id */
#endif
_ch_root_uid__setup(); /* Change user id and root if requested/possible */
stats_initialize(); /* We have to do this later on because of threading */