From ecb5899bcf9606698b3534edb435dcb2240be4c5 Mon Sep 17 00:00:00 2001
From: lieff <lieff@users.noreply.github.com>
Date: Wed, 19 Oct 2016 14:04:44 +0300
Subject: [PATCH] handle file IO error

---
 src/fontstash.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/fontstash.h b/src/fontstash.h
index 35dfb0f..d5b8aa5 100644
--- a/src/fontstash.h
+++ b/src/fontstash.h
@@ -873,7 +873,7 @@ error:
 int fonsAddFont(FONScontext* stash, const char* name, const char* path)
 {
 	FILE* fp = 0;
-	int dataSize = 0;
+	int dataSize = 0, readed;
 	unsigned char* data = NULL;
 
 	// Read in the font data.
@@ -884,9 +884,10 @@ int fonsAddFont(FONScontext* stash, const char* name, const char* path)
 	fseek(fp,0,SEEK_SET);
 	data = (unsigned char*)malloc(dataSize);
 	if (data == NULL) goto error;
-	fread(data, 1, dataSize, fp);
+	readed = fread(data, 1, dataSize, fp);
 	fclose(fp);
 	fp = 0;
+	if (readed != dataSize) goto error;
 
 	return fonsAddFontMem(stash, name, data, dataSize, 1);