From 8c5ef4293511ccf4326f3d30741a5134e06a3fc3 Mon Sep 17 00:00:00 2001
From: Juan RP <xtraeme@gmail.com>
Date: Tue, 7 Oct 2014 07:33:28 +0200
Subject: [PATCH] bin/xbps-checkvers/main.c: CID 62705 (argument cannot be
 negative)

---
 bin/xbps-checkvers/main.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/bin/xbps-checkvers/main.c b/bin/xbps-checkvers/main.c
index 4818c1fc..04ef8a0c 100644
--- a/bin/xbps-checkvers/main.c
+++ b/bin/xbps-checkvers/main.c
@@ -245,6 +245,7 @@ static bool
 rcv_load_file(rcv_t *rcv, const char *fname)
 {
 	FILE *file;
+	long offset;
 	rcv->fname = fname;
 
 	if ((file = fopen(rcv->fname, "r")) == NULL) {
@@ -256,9 +257,15 @@ rcv_load_file(rcv_t *rcv, const char *fname)
 	}
 
 	fseek(file, 0, SEEK_END);
-	rcv->len = (size_t)ftell(file);
+	offset = ftell(file);
 	fseek(file, 0, SEEK_SET);
 
+	if (offset == -1) {
+		fclose(file);
+		return false;
+	}
+	rcv->len = (size_t)offset;
+
 	if (rcv->input != NULL)
 		free(rcv->input);