[PATCH 1/6] test-sha1: add a binary output mode
From: Jeff King <hidden>
Date: 2016-06-15 22:58:29
Subsystem:
the rest · Maintainer:
Linus Torvalds
Possibly related (same subject, not in this thread)
- 2016-06-15 · [PATCH 1/6] test-sha1: add a binary output mode · Jeff King <hidden>
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 <redacted> Acked-by: Nicolas Pitre <nico@fluxnic.net> --- test-sha1.c | 15 ++++++++++++--- 1 file 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); }
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1.8.4.rc2.28.g6bb5f3f