From 2acd72313826596a86ad08ef8857f510a2555fb5 Mon Sep 17 00:00:00 2001
From: Martin Szulecki
Date: Thu, 22 Nov 2012 01:31:50 +0100
Subject: idevicebackup: Fix crash if manifest is sent early on in the backup
 process

---
 tools/idevicebackup.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'tools/idevicebackup.c')

diff --git a/tools/idevicebackup.c b/tools/idevicebackup.c
index 7935477..dbba217 100644
--- a/tools/idevicebackup.c
+++ b/tools/idevicebackup.c
@@ -455,9 +455,10 @@ static int plist_strcmp(plist_t node, const char *str)
 
 static char *mobilebackup_build_path(const char *backup_directory, const char *name, const char *extension)
 {
-	char* filename = (char*)malloc(strlen(name)+strlen(extension)+1);
+	char* filename = (char*)malloc(strlen(name)+(extension == NULL ? 0: strlen(extension))+1);
 	strcpy(filename, name);
-	strcat(filename, extension);
+	if (extension != NULL)
+		strcat(filename, extension);
 	char *path = build_path(backup_directory, filename, NULL);
 	free(filename);
 	return path;
-- 
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