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blame: handle broken commit headers gracefully

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split_ident_line() can leave us with the pointers date_begin, date_end,
tz_begin and tz_end all set to NULL.  Check them before use and supply
the same fallback values as in the case of a negative return code from
split_ident_line().

The "(unknown)" is not actually shown in the output, though, because it
will be converted to a number (zero) eventually.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe 2013-04-17 20:33:54 +02:00 committed by Junio C Hamano
parent 9dbe7c3d7f
commit de5abe9fe9
1 changed files with 8 additions and 3 deletions
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11
builtin/blame.c
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@ -1375,10 +1375,15 @@ static void get_ac_line(const char *inbuf, const char *what,
maillen = ident.mail_end - ident.mail_begin;
mailbuf = ident.mail_begin;
*time = strtoul(ident.date_begin, NULL, 10);
if (ident.date_begin && ident.date_end)
*time = strtoul(ident.date_begin, NULL, 10);
else
*time = 0;
len = ident.tz_end - ident.tz_begin;
strbuf_add(tz, ident.tz_begin, len);
if (ident.tz_begin && ident.tz_end)
strbuf_add(tz, ident.tz_begin, ident.tz_end - ident.tz_begin);
else
strbuf_addstr(tz, "(unknown)");
/*
* Now, convert both name and e-mail using mailmap