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vol_id: do not fail if unable to drop privileges

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This commit is contained in:
David Zeuthen 2007-06-07 00:56:20 +02:00 committed by Kay Sievers
parent e883be3e13
commit 1fdce2f39d
1 changed files with 9 additions and 11 deletions
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20
extras/volume_id/vol_id.c
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@ -154,7 +154,6 @@ int main(int argc, char *argv[])
int skip_raid = 0;
int probe_all = 0;
const char *node;
struct passwd *pw;
int fd;
const char *label, *uuid, *type, *type_version, *usage;
int retval;
@ -237,16 +236,15 @@ int main(int argc, char *argv[])
dbg("BLKGETSIZE64=%llu", (unsigned long long)size);
/* try to drop all privileges before reading disk content */
pw = getpwnam ("nobody");
if (pw != NULL && pw->pw_uid > 0 && pw->pw_gid > 0) {
dbg("dropping privileges to %u:%u",
(unsigned int)pw->pw_uid, (unsigned int)pw->pw_gid);
if (setgroups(0, NULL) != 0 ||
setgid(pw->pw_gid) != 0 ||
setuid(pw->pw_uid) != 0) {
fprintf(stderr, "error dropping privileges: %s\n", strerror(errno));
rc = 3;
goto exit;
if (getuid() == 0) {
struct passwd *pw;
pw = getpwnam("nobody");
if (pw != NULL && pw->pw_uid > 0 && pw->pw_gid > 0) {
if (setgroups(0, NULL) != 0 ||
setgid(pw->pw_gid) != 0 ||
setuid(pw->pw_uid) != 0)
info("unable to drop privileges: %s\n", strerror(errno));
}
}