sha1dc_git.c

   1 /*
   2  * This code is included at the end of sha1dc/sha1.c with the
   3  * SHA1DC_CUSTOM_TRAILING_INCLUDE_SHA1_C macro.
   4  */
   5
   6 void git_SHA1DCFinal(unsigned char hash[20], SHA1_CTX *ctx)
   7 {
   8         if (!SHA1DCFinal(hash, ctx))
   9                 return;
  10         die("SHA-1 appears to be part of a collision attack: %s",
  11             sha1_to_hex(hash));
  12 }
  13
  14 void git_SHA1DCUpdate(SHA1_CTX *ctx, const void *vdata, unsigned long len)
  15 {
  16         const char *data = vdata;
  17         /* We expect an unsigned long, but sha1dc only takes an int */
  18         while (len > INT_MAX) {
  19                 SHA1DCUpdate(ctx, data, INT_MAX);
  20                 data += INT_MAX;
  21                 len -= INT_MAX;
  22         }
  23         SHA1DCUpdate(ctx, data, len);
  24 }