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 6void 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 14void 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}