util: New xfopen() utility

And use it to pass O_CLOEXEC to all FILE*'s, so the files opened for
-fprint etc. don't get passed to the programs run by -exec etc.

1 files changed, 1 insertions, 1 deletions

diff --git a/mtab.c b/mtab.c
index 91a40aa..cb6a59a 100644
--- a/mtab.c
+++ b/mtab.c
@@ -162,7 +162,7 @@ struct bfs_mtab *bfs_mtab_parse() {
 
 #elif BFS_MNTTAB
 
-	FILE *file = fopen(MNTTAB, "r");
+	FILE *file = xfopen(MNTTAB, O_RDONLY | O_CLOEXEC);
 	if (!file) {
 		error = errno;
 		goto fail;