compat/sha1-chunked.c

   1 #include "git-compat-util.h"
   2 #include "hash.h"
   3
   4 int git_SHA1_Update_Chunked(platform_SHA_CTX *c, const void *data, size_t len)
   5 {
   6         size_t nr;
   7         size_t total = 0;
   8         const char *cdata = (const char*)data;
   9
  10         while (len) {
  11                 nr = len;
  12                 if (nr > SHA1_MAX_BLOCK_SIZE)
  13                         nr = SHA1_MAX_BLOCK_SIZE;
  14                 platform_SHA1_Update(c, cdata, nr);
  15                 total += nr;
  16                 cdata += nr;
  17                 len -= nr;
  18         }
  19         return total;
  20 }