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Code Issues Releases Wiki Activity

Kill use of POSIX saved uids; they aren't worth bothering with.

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This commit is contained in:
Todd C. Miller
2004-10-13 16:46:19 +00:00
parent 55e1b220e0
commit 48cdd1dec3
9 changed files with 34 additions and 410 deletions
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37
sudo.c
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@@ -140,7 +140,6 @@ login_cap_t *lc;
char *login_style;
#endif /* HAVE_BSD_AUTH_H */
sigaction_t saved_sa_int, saved_sa_quit, saved_sa_tstp, saved_sa_chld;
void (*set_perms) __P((int));
int
@@ -193,7 +192,7 @@ main(argc, argv, envp)
(void) sigaction(SIGCHLD, &sa, &saved_sa_chld);
/*
* Turn off core dumps, close open files and setup set_perms().
* Turn off core dumps and close open files.
*/
initial_setup();
setpwent();
@@ -277,22 +276,6 @@ main(argc, argv, envp)
validated = sudoers_lookup(pwflag);
}
/*
* If we are using set_perms_posix() and the stay_setuid flag was not set,
* set the real, effective and saved uids to 0 and use set_perms_nosuid()
* instead of set_perms_posix().
*/
#if !defined(HAVE_SETRESUID) && !defined(HAVE_SETREUID) && \
!defined(NO_SAVED_IDS) && defined(_SC_SAVED_IDS) && defined(_SC_VERSION)
if (!def_stay_setuid && set_perms == set_perms_posix) {
if (setuid(0)) {
perror("setuid(0)");
exit(1);
}
set_perms = set_perms_nosuid;
}
#endif
/*
* Look up the timestamp dir owner if one is specified.
*/
@@ -950,24 +933,6 @@ initial_setup()
#endif /* RLIMIT_CORE && !SUDO_DEVEL */
closefrom(STDERR_FILENO + 1);
/*
* Make set_perms point to the correct function.
* If we are using setresuid() or setreuid() we only need to set this
* once. If we are using POSIX saved uids we will switch to
* set_perms_nosuid after sudoers has been parsed if the "stay_suid"
* option is not set.
*/
#if defined(HAVE_SETRESUID) || defined(HAVE_SETREUID)
set_perms = set_perms_suid;
#else
# if !defined(NO_SAVED_IDS) && defined(_SC_SAVED_IDS) && defined(_SC_VERSION)
if (sysconf(_SC_SAVED_IDS) == 1 && sysconf(_SC_VERSION) >= 199009)
set_perms = set_perms_posix;
else
# endif
set_perms = set_perms_nosuid;
#endif /* HAVE_SETRESUID || HAVE_SETREUID */
}
#ifdef HAVE_LOGIN_CAP_H