fortify-headers

standalone fortify-source implementation
git clone git://git.2f30.org/fortify-headers
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test_fread_overwrite_dynamic.c (294B)

      1 #include <assert.h>
      2 
      3 #include "common.h"
      4 
      5 #include <stdio.h>
      6 
      7 int main(int argc, char** argv) {
      8   char buffer[12] = {0};
      9 
     10   assert((sizeof(buffer) - 2) * argc > sizeof(*buffer));
     11 
     12   CHK_FAIL_START
     13   fread(buffer, sizeof(buffer) - 2, argc, NULL);
     14   CHK_FAIL_END
     15 
     16   puts(buffer);
     17   return ret;
     18 }