Merge branch 'jt/http-redact-cookies' into maint
[git.git] / sha1dc_git.c
blobe0cc9d988c70337977853101c397960132af1981
1 #include "cache.h"
3 #ifdef DC_SHA1_EXTERNAL
4 /*
5 * Same as SHA1DCInit, but with default save_hash=0
6 */
7 void git_SHA1DCInit(SHA1_CTX *ctx)
9 SHA1DCInit(ctx);
10 SHA1DCSetSafeHash(ctx, 0);
12 #endif
15 * Same as SHA1DCFinal, but convert collision attack case into a verbose die().
17 void git_SHA1DCFinal(unsigned char hash[20], SHA1_CTX *ctx)
19 if (!SHA1DCFinal(hash, ctx))
20 return;
21 die("SHA-1 appears to be part of a collision attack: %s",
22 sha1_to_hex(hash));
26 * Same as SHA1DCUpdate, but adjust types to match git's usual interface.
28 void git_SHA1DCUpdate(SHA1_CTX *ctx, const void *vdata, unsigned long len)
30 const char *data = vdata;
31 /* We expect an unsigned long, but sha1dc only takes an int */
32 while (len > INT_MAX) {
33 SHA1DCUpdate(ctx, data, INT_MAX);
34 data += INT_MAX;
35 len -= INT_MAX;
37 SHA1DCUpdate(ctx, data, len);