* process.c (proc_setuid, proc_setgid, proc_seteuid, proc_setegid):

  get rid of bogus implementations on Mac OS X.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10733 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 31 insertions, 3 deletions

diff --git a/process.c b/process.c
index c286c80c9a..a07b0db4e0 100644
--- a/process.c
+++ b/process.c
@@ -2215,8 +2215,22 @@ proc_setuid(VALUE obj, VALUE id)
  *
  */
 
-static int SAVED_USER_ID;
+static int SAVED_USER_ID = -1;
 
+#ifdef BROKEN_SETREUID
+int
+setreuid(rb_uid_t ruid, rb_uid_t euid)
+{
+    if (ruid != -1 && ruid != getuid()) {
+	if (euid == -1) euid = geteuid();
+	if (setuid(ruid) < 0) return -1;
+    }
+    if (euid != -1 && euid != geteuid()) {
+	if (seteuid(euid) < 0) return -1;
+    }
+    return 0;
+}
+#endif
 
 /*
  *  call-seq:
@@ -2551,7 +2565,7 @@ proc_setgid(VALUE obj, VALUE id)
 #elif defined HAVE_SETREGID
     if (setregid(gid, -1) < 0) rb_sys_fail(0);
 #elif defined HAVE_SETRGID
-    if (setrgid((GIDTYPE)gid) < 0) rb_sys_fail(0);
+    if (setrgid(gid) < 0) rb_sys_fail(0);
 #elif defined HAVE_SETGID
     {
 	if (getegid() == gid) {
@@ -2807,8 +2821,22 @@ proc_daemon(int argc, VALUE *argv)
  *
  */
 
-static int SAVED_GROUP_ID;
+static int SAVED_GROUP_ID = -1;
 
+#ifdef BROKEN_SETREGID
+int
+setregid(rb_gid_t rgid, rb_gid_t egid)
+{
+    if (rgid != -1 && rgid != getgid()) {
+	if (egid == -1) egid = getegid();
+	if (setgid(rgid) < 0) return -1;
+    }
+    if (egid != -1 && egid != getegid()) {
+	if (setegid(egid) < 0) return -1;
+    }
+    return 0;
+}
+#endif
 
 /*
  *  call-seq: