From 8901dcdc9db3ea5d47900be903dfdb5070dc6b21 Mon Sep 17 00:00:00 2001
From: Yann Collet <yann.collet.73@gmail.com>
Date: Sun, 28 Jun 2015 21:53:42 -0800
Subject: [PATCH] removed one malloc

---
 programs/lz4io.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/programs/lz4io.c b/programs/lz4io.c
index d92634a..be2dc5d 100644
--- a/programs/lz4io.c
+++ b/programs/lz4io.c
@@ -1013,6 +1013,7 @@ int LZ4IO_decompressFilename(const char* input_filename, const char* output_file
 }
 
 
+#define MAXSUFFIXSIZE 8
 int LZ4IO_decompressMultipleFilenames(const char** inFileNamesTable, int ifntSize, const char* suffix)
 {
     int i;
@@ -1021,17 +1022,18 @@ int LZ4IO_decompressMultipleFilenames(const char** inFileNamesTable, int ifntSiz
     char* outFileName = (char*)malloc(FNSPACE);
     size_t ofnSize = FNSPACE;
     const size_t suffixSize = strlen(suffix);
-    char* ifnSuffix = (char*)malloc(suffixSize + 1);
+    const char* suffixPtr;
     dRess_t ress;
 
+	if (outFileName==NULL) exit(1);   /* not enough memory */
     ress = LZ4IO_createDResources();
 
     for (i=0; i<ifntSize; i++)
     {
         size_t ifnSize = strlen(inFileNamesTable[i]);
-        strcpy(ifnSuffix, inFileNamesTable[i] + ifnSize - suffixSize);
-        if (ofnSize <= ifnSize-suffixSize+1) { free(outFileName); ofnSize = ifnSize + 20; outFileName = (char*)malloc(ofnSize); }
-        if (ifnSize <= suffixSize  ||  strcmp(ifnSuffix, suffix) != 0)
+        suffixPtr = inFileNamesTable[i] + ifnSize - suffixSize;
+        if (ofnSize <= ifnSize-suffixSize+1) { free(outFileName); ofnSize = ifnSize + 20; outFileName = (char*)malloc(ofnSize); if (outFileName==NULL) exit(1); }
+        if (ifnSize <= suffixSize  ||  strcmp(suffixPtr, suffix) != 0)
         {
             DISPLAYLEVEL(1, "File extension doesn't match expected LZ4_EXTENSION (%4s); will not process file: %s\n", suffix, inFileNamesTable[i]);
             skippedFiles++;
@@ -1045,6 +1047,5 @@ int LZ4IO_decompressMultipleFilenames(const char** inFileNamesTable, int ifntSiz
 
     LZ4IO_freeDResources(ress);
     free(outFileName);
-    free(ifnSuffix);
     return missingFiles + skippedFiles;
 }
-- 
2.7.4