From: magnum <john.magnum@hushmail.com>
Date: Wed, 27 Jan 2016 12:30:38 +0000 (+0100)
Subject: Do not create a kernel cache file if build failed. Also disregard any
X-Git-Tag: v3.00-beta~453^2
X-Git-Url: https://www.flypig.org.uk/git/?a=commitdiff_plain;h=f5d6f9b6d42830d659b73989819b15bd8bc62ab9;p=hashcat.git

Do not create a kernel cache file if build failed. Also disregard any
existing cache files with size of zero. Should close #164.
---

diff --git a/src/oclHashcat.c b/src/oclHashcat.c
index 91d74e2..87b5b6b 100644
--- a/src/oclHashcat.c
+++ b/src/oclHashcat.c
@@ -13547,7 +13547,7 @@ int main (int argc, char **argv)
 
         struct stat cst;
 
-        if (stat (cached_file, &cst) == -1)
+        if ((stat (cached_file, &cst) == -1) || cst.st_size == 0)
         {
           cached = 0;
         }
diff --git a/src/shared.c b/src/shared.c
index 111f547..08f2389 100644
--- a/src/shared.c
+++ b/src/shared.c
@@ -8672,12 +8672,15 @@ void load_kernel (const char *kernel_file, int num_devices, size_t *kernel_lengt
 
 void writeProgramBin (char *dst, u8 *binary, size_t binary_size)
 {
-  FILE *fp = fopen (dst, "wb");
+  if (binary_size > 0)
+  {
+    FILE *fp = fopen (dst, "wb");
 
-  fwrite (binary, sizeof (u8), binary_size, fp);
+    fwrite (binary, sizeof (u8), binary_size, fp);
 
-  fflush (fp);
-  fclose (fp);
+    fflush (fp);
+    fclose (fp);
+  }
 }
 
 /**