*/
#include "includes.h"
-RCSID("$OpenBSD: uidswap.c,v 1.23 2002/07/15 17:15:31 stevesk Exp $");
+RCSID("$OpenBSD: uidswap.c,v 1.18 2001/08/08 21:34:19 markus Exp $");
#include "log.h"
#include "uidswap.h"
#ifdef SAVED_IDS_WORK_WITH_SETEUID
saved_euid = geteuid();
saved_egid = getegid();
- debug("temporarily_use_uid: %u/%u (e=%u/%u)",
- (u_int)pw->pw_uid, (u_int)pw->pw_gid,
- (u_int)saved_euid, (u_int)saved_egid);
+ debug("temporarily_use_uid: %d/%d (e=%d)",
+ pw->pw_uid, pw->pw_gid, saved_euid);
if (saved_euid != 0) {
privileged = 0;
return;
privileged = 1;
temporarily_use_uid_effective = 1;
- saved_egroupslen = getgroups(NGROUPS_MAX, saved_egroups);
+ saved_egroupslen = getgroups(NGROUPS_MAX, saved_egroups);
if (saved_egroupslen < 0)
fatal("getgroups: %.100s", strerror(errno));
if (initgroups(pw->pw_name, pw->pw_gid) < 0)
fatal("initgroups: %s: %.100s", pw->pw_name,
strerror(errno));
- user_groupslen = getgroups(NGROUPS_MAX, user_groups);
+ user_groupslen = getgroups(NGROUPS_MAX, user_groups);
if (user_groupslen < 0)
fatal("getgroups: %.100s", strerror(errno));
}
+#ifndef HAVE_CYGWIN
/* Set the effective uid to the given (unprivileged) uid. */
if (setgroups(user_groupslen, user_groups) < 0)
fatal("setgroups: %.100s", strerror(errno));
+#endif /* !HAVE_CYWIN */
#ifndef SAVED_IDS_WORK_WITH_SETEUID
/* Propagate the privileged gid to all of our gids. */
if (setgid(getegid()) < 0)
debug("setuid %u: %.100s", (u_int) geteuid(), strerror(errno));
#endif /* SAVED_IDS_WORK_WITH_SETEUID */
if (setegid(pw->pw_gid) < 0)
- fatal("setegid %u: %.100s", (u_int)pw->pw_gid,
+ fatal("setegid %u: %.100s", (u_int) pw->pw_gid,
strerror(errno));
if (seteuid(pw->pw_uid) == -1)
- fatal("seteuid %u: %.100s", (u_int)pw->pw_uid,
+ fatal("seteuid %u: %.100s", (u_int) pw->pw_uid,
strerror(errno));
}
void
restore_uid(void)
{
+ debug("restore_uid");
/* it's a no-op unless privileged */
- if (!privileged) {
- debug("restore_uid: (unprivileged)");
+ if (!privileged)
return;
- }
if (!temporarily_use_uid_effective)
fatal("restore_uid: temporarily_use_uid not effective");
#ifdef SAVED_IDS_WORK_WITH_SETEUID
- debug("restore_uid: %u/%u", (u_int)saved_euid, (u_int)saved_egid);
/* Set the effective uid back to the saved privileged uid. */
if (seteuid(saved_euid) < 0)
- fatal("seteuid %u: %.100s", (u_int)saved_euid, strerror(errno));
+ fatal("seteuid %u: %.100s", (u_int) saved_euid, strerror(errno));
if (setegid(saved_egid) < 0)
- fatal("setegid %u: %.100s", (u_int)saved_egid, strerror(errno));
+ fatal("setegid %u: %.100s", (u_int) saved_egid,
+ strerror(errno));
#else /* SAVED_IDS_WORK_WITH_SETEUID */
/*
* We are unable to restore the real uid to its unprivileged value.
setgid(getgid());
#endif /* SAVED_IDS_WORK_WITH_SETEUID */
+#ifndef HAVE_CYGWIN
if (setgroups(saved_egroupslen, saved_egroups) < 0)
fatal("setgroups: %.100s", strerror(errno));
+#endif /* !HAVE_CYGWIN */
temporarily_use_uid_effective = 0;
}
permanently_set_uid(struct passwd *pw)
{
if (temporarily_use_uid_effective)
- fatal("permanently_set_uid: temporarily_use_uid effective");
- debug("permanently_set_uid: %u/%u", (u_int)pw->pw_uid,
- (u_int)pw->pw_gid);
+ fatal("restore_uid: temporarily_use_uid effective");
if (setgid(pw->pw_gid) < 0)
- fatal("setgid %u: %.100s", (u_int)pw->pw_gid, strerror(errno));
+ fatal("setgid %u: %.100s", (u_int) pw->pw_gid, strerror(errno));
if (setuid(pw->pw_uid) < 0)
- fatal("setuid %u: %.100s", (u_int)pw->pw_uid, strerror(errno));
+ fatal("setuid %u: %.100s", (u_int) pw->pw_uid, strerror(errno));
}