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authorJeff King <peff@peff.net>2013-08-22 23:12:42 (GMT)
committerJunio C Hamano <gitster@pobox.com>2013-08-22 23:39:46 (GMT)
commit54c93cb4afc932ab125a59464bb52e04f9c36575 (patch)
treee24ef0732149477457bfad763089b90ece8adf86 /test-sha1.c
parenta3bc3d070cacf07dbe11b4bfec57554c8bbf1957 (diff)
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test-sha1: add a binary output mode
The test-sha1 helper program will run our internal sha1 routines over its input and output the 40-byte hex sha1. Sometimes, however, it is useful to have the binary 20-byte sha1 (and it's a pain to convert back in the shell). Let's add a "-b" option to output the binary version. Signed-off-by: Jeff King <peff@peff.net> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'test-sha1.c')
-rw-r--r--test-sha1.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/test-sha1.c b/test-sha1.c
index 80daba9..e57eae1 100644
--- a/test-sha1.c
+++ b/test-sha1.c
@@ -5,10 +5,15 @@ int main(int ac, char **av)
git_SHA_CTX ctx;
unsigned char sha1[20];
unsigned bufsz = 8192;
+ int binary = 0;
char *buffer;
- if (ac == 2)
- bufsz = strtoul(av[1], NULL, 10) * 1024 * 1024;
+ if (ac == 2) {
+ if (!strcmp(av[1], "-b"))
+ binary = 1;
+ else
+ bufsz = strtoul(av[1], NULL, 10) * 1024 * 1024;
+ }
if (!bufsz)
bufsz = 8192;
@@ -42,6 +47,10 @@ int main(int ac, char **av)
git_SHA1_Update(&ctx, buffer, this_sz);
}
git_SHA1_Final(sha1, &ctx);
- puts(sha1_to_hex(sha1));
+
+ if (binary)
+ fwrite(sha1, 1, 20, stdout);
+ else
+ puts(sha1_to_hex(sha1));
exit(0);
}