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| author | Junio C Hamano <gitster@pobox.com> | 2019-01-29 12:47:55 -0800 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2019-01-29 12:47:55 -0800 |
| commit | 33e4ae9c509e0ecdc6508475f2974d275539616e (patch) | |
| tree | 93aa27f2902d3257932d64962f724c66b7a50ef6 /t/helper/test-hash.c | |
| parent | 5d3635db19c6dff4fb063fabfa4161fd3b8285f0 (diff) | |
| parent | 4b4e2918099600c1eefe7b5a71bf647803905b7e (diff) | |
| download | git-33e4ae9c509e0ecdc6508475f2974d275539616e.tar.gz | |
Merge branch 'bc/sha-256'
Add sha-256 hash and plug it through the code to allow building Git
with the "NewHash".
* bc/sha-256:
hash: add an SHA-256 implementation using OpenSSL
sha256: add an SHA-256 implementation using libgcrypt
Add a base implementation of SHA-256 support
commit-graph: convert to using the_hash_algo
t/helper: add a test helper to compute hash speed
sha1-file: add a constant for hash block size
t: make the sha1 test-tool helper generic
t: add basic tests for our SHA-1 implementation
cache: make hashcmp and hasheq work with larger hashes
hex: introduce functions to print arbitrary hashes
sha1-file: provide functions to look up hash algorithms
sha1-file: rename algorithm to "sha1"
Diffstat (limited to 't/helper/test-hash.c')
| -rw-r--r-- | t/helper/test-hash.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/t/helper/test-hash.c b/t/helper/test-hash.c new file mode 100644 index 0000000000..0a31de66f3 --- /dev/null +++ b/t/helper/test-hash.c @@ -0,0 +1,58 @@ +#include "test-tool.h" +#include "cache.h" + +int cmd_hash_impl(int ac, const char **av, int algo) +{ + git_hash_ctx ctx; + unsigned char hash[GIT_MAX_HEXSZ]; + unsigned bufsz = 8192; + int binary = 0; + char *buffer; + const struct git_hash_algo *algop = &hash_algos[algo]; + + if (ac == 2) { + if (!strcmp(av[1], "-b")) + binary = 1; + else + bufsz = strtoul(av[1], NULL, 10) * 1024 * 1024; + } + + if (!bufsz) + bufsz = 8192; + + while ((buffer = malloc(bufsz)) == NULL) { + fprintf(stderr, "bufsz %u is too big, halving...\n", bufsz); + bufsz /= 2; + if (bufsz < 1024) + die("OOPS"); + } + + algop->init_fn(&ctx); + + while (1) { + ssize_t sz, this_sz; + char *cp = buffer; + unsigned room = bufsz; + this_sz = 0; + while (room) { + sz = xread(0, cp, room); + if (sz == 0) + break; + if (sz < 0) + die_errno("test-hash"); + this_sz += sz; + cp += sz; + room -= sz; + } + if (this_sz == 0) + break; + algop->update_fn(&ctx, buffer, this_sz); + } + algop->final_fn(hash, &ctx); + + if (binary) + fwrite(hash, 1, algop->rawsz, stdout); + else + puts(hash_to_hex_algop(hash, algop)); + exit(0); +} |