From: David Levine <levinedl@acm.org>
Date: Sat, 14 Feb 2015 04:22:21 +0000 (-0600)
Subject: Removed m_chkids(), per suggestion of Marcin Cieslak.
X-Git-Tag: mmh-0.2-RC1~46
X-Git-Url: http://git.marmaro.de/?p=mmh;a=commitdiff_plain;h=24756fd85e33a76ac495073e90a7a56cb7f6103c

Removed m_chkids(), per suggestion of Marcin Cieslak.
---

diff --git a/sbr/context_save.c b/sbr/context_save.c
index d1371d0..ac0dbfd 100644
--- a/sbr/context_save.c
+++ b/sbr/context_save.c
@@ -6,19 +6,18 @@
 ** complete copyright information.
 */
 
-#include <h/mh.h>
-#include <h/signals.h>
-
 /*
-** static prototypes
-*/
-static int m_chkids(void);
+ * This function used to support setuid/setgid programs by writing
+ * the file as the user.  But that code, m_chkids(), was removed
+ * because there no longer are setuid/setgid programs in nmh.
+ */
 
+#include <h/mh.h>
+#include <h/signals.h>
 
 void
 context_save(void)
 {
-	int action;
 	register struct node *np;
 	FILE *out;
 	sigset_t set, oset;
@@ -31,9 +30,6 @@ context_save(void)
 		return;
 	ctxflags &= ~CTXMOD;
 
-	if ((action = m_chkids()) > 0)
-		return;  /* child did it for us */
-
 	/* block a few signals */
 	sigemptyset(&set);
 	sigaddset(&set, SIGHUP);
@@ -50,42 +46,4 @@ context_save(void)
 	lkfclose(out, ctxpath);
 
 	sigprocmask(SIG_SETMASK, &oset, &set); /* reset the signal mask */
-
-	if (action == 0)
-		_exit(0);    /* we are child, time to die */
-}
-
-/*
-** This hack brought to you so we can handle set[ug]id MH programs.
-** If we return -1, then no fork is made, we update .mh_profile
-** normally, and return to the caller normally.  If we return 0,
-** then the child is executing, .mh_profile is modified after
-** we set our [ug]ids to the norm.  If we return > 0, then the
-** parent is executed and .mh_profile has already be modified.
-** We can just return to the caller immediately.
-*/
-
-static int
-m_chkids(void)
-{
-	pid_t pid;
-
-	if (getuid() == geteuid())
-		return (-1);
-
-	switch (pid = fork()) {
-	case -1:
-		break;
-
-	case 0:
-		setgid(getgid());
-		setuid(getuid());
-		break;
-
-	default:
-		pidwait(pid, -1);
-		break;
-	}
-
-	return pid;
 }