From: jeon <jhyuni.kang@samsung.com>
Date: Tue, 17 Sep 2019 12:51:17 +0000 (+0900)
Subject: default_backend: fix some svace issues
X-Git-Tag: accepted/tizen/5.5/unified/20200102.014046~11
X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Flibpui.git;a=commitdiff_plain;h=d65964b74291727e8eba2804593c8ab6150f5b01

default_backend: fix some svace issues

Change-Id: I78fe3f4efc5723e93baf6227f9accb5a43d56f1a
---

diff --git a/backends/default_backend.c b/backends/default_backend.c
index 390bfab..5d71cf2 100644
--- a/backends/default_backend.c
+++ b/backends/default_backend.c
@@ -24,6 +24,7 @@
  */
 
 #include "default_backend.h"
+#include <limits.h>
 
 pui_backend_ani_func *ani_func = NULL;
 Eina_Hash *_animations_hash = NULL;
@@ -205,15 +206,17 @@ static char *
 _read_json_file(const char *path, int *data_size)
 {
 	FILE *fp = fopen(path, "rb");
-	unsigned int size;
-	char *buffer;
+	int size;
+	char *buffer = NULL;
 	ERROR_CHECK(fp, return NULL, "Failed to open file: %s\n", path);
 
 	fseek(fp, 0, SEEK_END);
-	size = (unsigned int)ftell(fp);
+	size = (long int)ftell(fp);
 	fseek(fp, 0, SEEK_SET);
+	ERROR_CHECK(0 < size && size < INT_MAX, goto error, "Invalid file: %d size\n", size);
 
 	buffer = (char *)calloc(sizeof(char), size + 1);
+	ERROR_CHECK(buffer, goto error, "Failed to allocate memory for buffer\n");
 
 	if (fread(buffer, size, 1, fp) < 1) {
 		goto error;