From 3bb0f0fbdde37789ee51e718225cbd278e9167f9 Mon Sep 17 00:00:00 2001
From: sin <sin@2f30.org>
Date: Sat, 15 Feb 2014 18:26:01 +0000
Subject: [PATCH] Check setmntent() for failures

---
 swapoff.c | 2 ++
 swapon.c  | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/swapoff.c b/swapoff.c
index 806d1f0..2d2b7ac 100644
--- a/swapoff.c
+++ b/swapoff.c
@@ -36,6 +36,8 @@ main(int argc, char *argv[])
 		FILE *fp;
 
 		fp = setmntent("/etc/fstab", "r");
+		if (!fp)
+			eprintf("setmntent %s:", "/etc/fstab");
 		while ((me = getmntent(fp)) != NULL) {
 			if (strcmp(me->mnt_type, MNTTYPE_SWAP) == 0) {
 				if (swapoff(me->mnt_fsname) < 0) {
diff --git a/swapon.c b/swapon.c
index 40e6c9f..6b3d32f 100644
--- a/swapon.c
+++ b/swapon.c
@@ -43,6 +43,8 @@ main(int argc, char *argv[])
 		FILE *fp;
 
 		fp = setmntent("/etc/fstab", "r");
+		if (!fp)
+			eprintf("setmntent %s:", "/etc/fstab");
 		while ((me = getmntent(fp)) != NULL) {
 			if (strcmp(me->mnt_type, MNTTYPE_SWAP) == 0
 			    && (hasmntopt(me, MNTOPT_NOAUTO) == NULL)) {