X-Git-Url: http://git.marmaro.de/?p=mmh;a=blobdiff_plain;f=sbr%2Fcontext_save.c;h=0f7061a51e30b1a6ea88a5a95bb83a6cd58d1f2d;hp=b3f8168bed12c7ec6d6f9ee940c577166c02011f;hb=d4bcca1aa235370bc20bc2734c0cd6f700b17871;hpb=1691e80890e5d8ba258c51c214a3e91880e1db2b

diff --git a/sbr/context_save.c b/sbr/context_save.c
index b3f8168..0f7061a 100644
--- a/sbr/context_save.c
+++ b/sbr/context_save.c
@@ -1,90 +1,50 @@
+/*
+** context_save.c -- write out the updated context file
+**
+** This code is Copyright (c) 2002, by the authors of nmh.  See the
+** COPYRIGHT file in the root directory of the nmh distribution for
+** complete copyright information.
+*/
 
 /*
- * context_save.c -- write out the updated context file
- *
- * $Id$
+ * 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 <sysexits.h>
 #include <h/mh.h>
 #include <h/signals.h>
 
-/*
- * static prototypes
- */
-static int m_chkids(void);
-
-
 void
-context_save (void)
+context_save(void)
 {
-    int action;
-    register struct node *np;
-    FILE *out;
-    sigset_t set, oset;
-
-    if (!(ctxflags & CTXMOD))
-	return;
-    ctxflags &= ~CTXMOD;
-
-    if ((action = m_chkids ()) > 0)
-	return;			/* child did it for us */
-
-    /* block a few signals */
-    sigemptyset (&set);
-    sigaddset (&set, SIGHUP);
-    sigaddset (&set, SIGINT);
-    sigaddset (&set, SIGQUIT);
-    sigaddset (&set, SIGTERM);
-    SIGPROCMASK (SIG_BLOCK, &set, &oset);
-
-    if (!(out = fopen (ctxpath, "w")))
-	adios (ctxpath, "unable to write");
-    for (np = m_defs; np; np = np->n_next)
-	if (np->n_context)
-	    fprintf (out, "%s: %s\n", np->n_name, np->n_field);
-    fclose (out);
-
-    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)
-{
-    int i;
-    pid_t pid;
-
-    if (getuid () == geteuid ())
-	return (-1);
-
-    for (i = 0; (pid = fork ()) == -1 && i < 5; i++)
-	sleep (5);
-
-    switch (pid) {
-	case -1:
-	    break;
-
-	case 0:
-	    setgid (getgid ());
-	    setuid (getuid ());
-	    break;
-
-	default:
-	    pidwait (pid, -1);
-	    break;
-    }
-
-    return pid;
+	struct node *np;
+	FILE *out;
+	sigset_t set, oset;
+
+	/* No context in use -- silently ignore any changes! */
+	if (!ctxpath)
+		return;
+
+	if (!(ctxflags & CTXMOD))
+		return;
+	ctxflags &= ~CTXMOD;
+
+	/* block a few signals */
+	sigemptyset(&set);
+	sigaddset(&set, SIGHUP);
+	sigaddset(&set, SIGINT);
+	sigaddset(&set, SIGQUIT);
+	sigaddset(&set, SIGTERM);
+	sigprocmask(SIG_BLOCK, &set, &oset);
+
+	if (!(out = lkfopen(ctxpath, "w")))
+		adios(EX_IOERR, ctxpath, "unable to write");
+	for (np = m_defs; np; np = np->n_next)
+		if (np->n_context)
+			fprintf(out, "%s: %s\n", np->n_name, np->n_field);
+	lkfclose(out, ctxpath);
+
+	sigprocmask(SIG_SETMASK, &oset, &set); /* reset the signal mask */
 }