From: Neil Brown <neilb@notabene.brown>
Date: Fri, 20 Apr 2007 02:42:32 +0000 (+1000)
Subject: Add -t option for chroot.
X-Git-Tag: portmap_6.0~15
X-Git-Url: http://git.neil.brown.name/?a=commitdiff_plain;h=91b840b900414a0c0c2a3985a6e5b5b58c5eac90;p=portmap.git

Add -t option for chroot.

From debian.
---

diff --git a/portmap.c b/portmap.c
index f50e85b..c7cca69 100644
--- a/portmap.c
+++ b/portmap.c
@@ -160,21 +160,28 @@ main(int argc, char **argv)
 	struct sockaddr_in addr;
 	int len = sizeof(struct sockaddr_in);
 	register struct pmaplist *pml;
+	char *chroot_path = NULL;
 
-	while ((c = getopt(argc, argv, "dv")) != EOF) {
+	while ((c = getopt(argc, argv, "dt:v")) != EOF) {
 		switch (c) {
 
 		case 'd':
 			debugging = 1;
 			break;
 
+		case 't':
+			chroot_path = optarg;
+			break;
+
 		case 'v':
 			verboselog = 1;
 			break;
 
 		default:
-			(void) fprintf(stderr, "usage: %s [-dv]\n", argv[0]);
+			(void) fprintf(stderr, "usage: %s [-dv] [-t dir]\n",
+				       argv[0]);
 			(void) fprintf(stderr, "-d: debugging mode\n");
+			(void) fprintf(stderr, "-t dir: chroot into dir\n");
 			(void) fprintf(stderr, "-v: verbose logging\n");
 			exit(1);
 		}
@@ -283,6 +290,12 @@ main(int argc, char **argv)
 	(void)svc_register(xprt, PMAPPROG, PMAPVERS, reg_service, FALSE);
 
 	/* additional initializations */
+	if (chroot_path) {
+		if (chroot(chroot_path) < 0) {
+			syslog(LOG_ERR, "couldn't do chroot");
+			exit(1);
+		}
+	}
 	check_startup();
 #ifdef IGNORE_SIGCHLD			/* Lionel Cons <cons@dxcern.cern.ch> */
 	(void)signal(SIGCHLD, SIG_IGN);