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rerere: Fix use of an empty strbuf.buf 

The code incorrectly assumed that strbuf.buf is always an
allocated piece of memory that has NUL at offset strbuf.len.
That assumption does not hold for a freshly initialized empty
strbuf.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Junio C Hamano 2007-09-26 23:34:01 -07:00
parent 1dffb8fa80
commit b4833a2c62
1 changed files with 4 additions and 2 deletions
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6
builtin-rerere.c
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@ -113,8 +113,10 @@ static int handle_file(const char *path,
fputs(">>>>>>>\n", out);
}
if (sha1) {
SHA1_Update(&ctx, one.buf, one.len + 1);
SHA1_Update(&ctx, two.buf, two.len + 1);
SHA1_Update(&ctx, one.buf ? one.buf : "",
one.len + 1);
SHA1_Update(&ctx, two.buf ? two.buf : "",
two.len + 1);
}
strbuf_reset(&one);
strbuf_reset(&two);