| Ævar Arnfjörð Bjarmason | a010391 | 2017-05-20 11:54:28 | [diff] [blame] | 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 | } |
