From: Nikos Mavrogiannopoulos <nmav@redhat.com>
Date: Fri, 11 Mar 2016 10:52:17 +0000 (+0100)
Subject: certtool: better error handling in file_size()
X-Git-Tag: gnutls_3_5_0~261
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1fcd82b7eee685bb77355e7386c525b915fc528b;p=thirdparty%2Fgnutls.git

certtool: better error handling in file_size()
---

diff --git a/src/certtool-common.c b/src/certtool-common.c
index 6729681d18..dab6c59f99 100644
--- a/src/certtool-common.c
+++ b/src/certtool-common.c
@@ -53,8 +53,14 @@ unsigned long lbuffer_size = 0;
 static unsigned long file_size(FILE *fp)
 {
 	unsigned long size;
-	unsigned long cur = ftell(fp);
-	fseek(fp, 0, SEEK_END);
+	long cur = ftell(fp);
+
+	if (cur == -1)
+		return 0;
+
+	if (fseek(fp, 0, SEEK_END) == -1)
+		return 0;
+
 	size = ftell(fp);
 	fseek(fp, cur, SEEK_SET);
 	return size;