X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Ftincctl.c;h=00757c47a57b96d7c3f258acd92652be66e9cac1;hp=c9d8c67c98e3ed6a91ad8c48008ace6af1119f4d;hb=abb24e9d71b3edb9cacf4c04361cc0dfd4e6a061;hpb=537a9366718b39278fd4eb33b2ac568011e374cc

diff --git a/src/tincctl.c b/src/tincctl.c
index c9d8c67c..00757c47 100644
--- a/src/tincctl.c
+++ b/src/tincctl.c
@@ -233,6 +233,12 @@ FILE *fopenmask(const char *filename, const char *mode, mode_t perms) {
 	perms &= ~mask;
 	umask(~perms);
 	FILE *f = fopen(filename, mode);
+
+	if(!f) {
+		fprintf(stderr, "Could not open %s: %s\n", filename, strerror(errno));
+		return NULL;
+	}
+
 #ifdef HAVE_FCHMOD
 	if((perms & 0444) && f)
 		fchmod(fileno(f), perms);