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$NetBSD: patch-uidswap.c,v 1.1.4.1 2013/12/05 09:52:53 tron Exp $
Interix support
--- uidswap.c.orig 2013-06-01 22:07:32.000000000 +0000
+++ uidswap.c
@@ -66,13 +66,13 @@ temporarily_use_uid(struct passwd *pw)
(u_int)pw->pw_uid, (u_int)pw->pw_gid,
(u_int)saved_euid, (u_int)saved_egid);
#ifndef HAVE_CYGWIN
- if (saved_euid != 0) {
+ if (saved_euid != ROOTUID) {
privileged = 0;
return;
}
#endif
#else
- if (geteuid() != 0) {
+ if (geteuid() != ROOTUID) {
privileged = 0;
return;
}
@@ -95,9 +95,11 @@ temporarily_use_uid(struct passwd *pw)
/* set and save the user's groups */
if (user_groupslen == -1) {
+#ifndef HAVE_INTERIX
if (initgroups(pw->pw_name, pw->pw_gid) < 0)
fatal("initgroups: %s: %.100s", pw->pw_name,
strerror(errno));
+#endif
user_groupslen = getgroups(0, NULL);
if (user_groupslen < 0)
@@ -111,9 +113,11 @@ temporarily_use_uid(struct passwd *pw)
free(user_groups);
}
}
+#ifndef HAVE_INTERIX
/* Set the effective uid to the given (unprivileged) uid. */
if (setgroups(user_groupslen, user_groups) < 0)
fatal("setgroups: %.100s", strerror(errno));
+#endif
#ifndef SAVED_IDS_WORK_WITH_SETEUID
/* Propagate the privileged gid to all of our gids. */
if (setgid(getegid()) < 0)
@@ -184,8 +188,10 @@ restore_uid(void)
setgid(getgid());
#endif /* SAVED_IDS_WORK_WITH_SETEUID */
+#ifndef HAVE_INTERIX
if (setgroups(saved_egroupslen, saved_egroups) < 0)
fatal("setgroups: %.100s", strerror(errno));
+#endif
temporarily_use_uid_effective = 0;
}
@@ -206,6 +212,10 @@ permanently_set_uid(struct passwd *pw)
debug("permanently_set_uid: %u/%u", (u_int)pw->pw_uid,
(u_int)pw->pw_gid);
+#if defined(HAVE_INTERIX)
+ if (setuser(pw->pw_name, NULL, SU_COMPLETE))
+ fatal("setuser %u: %.100s", (u_int)pw->pw_gid, strerror(errno));
+#else
if (setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) < 0)
fatal("setresgid %u: %.100s", (u_int)pw->pw_gid, strerror(errno));
@@ -242,6 +252,7 @@ permanently_set_uid(struct passwd *pw)
(setuid(old_uid) != -1 || seteuid(old_uid) != -1))
fatal("%s: was able to restore old [e]uid", __func__);
#endif
+#endif /* HAVE_INTERIX */
/* Verify UID drop was successful */
if (getuid() != pw->pw_uid || geteuid() != pw->pw_uid) {
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