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Don't forget to check the return values of setuid and friends.

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[originally from svn r9764]
This commit is contained in:
Simon Tatham 2013-02-23 21:00:29 +00:00
parent 40ce043a97
commit 74bc2635ad
1 changed files with 16 additions and 4 deletions
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20
unix/uxpty.c
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@ -531,11 +531,23 @@ void pty_pre_init(void)
int gid = getgid(), uid = getuid(); int gid = getgid(), uid = getuid();
int setresgid(gid_t, gid_t, gid_t); int setresgid(gid_t, gid_t, gid_t);
int setresuid(uid_t, uid_t, uid_t); int setresuid(uid_t, uid_t, uid_t);
setresgid(gid, gid, gid); if (setresgid(gid, gid, gid) < 0) {
setresuid(uid, uid, uid); perror("setresgid");
exit(1);
}
if (setresuid(uid, uid, uid) < 0) {
perror("setresuid");
exit(1);
}
#else #else
setgid(getgid()); if (setgid(getgid()) < 0) {
setuid(getuid()); perror("setgid");
exit(1);
}
if (setuid(getuid()) < 0) {
perror("setuid");
exit(1);
}
#endif #endif
} }
} }