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apply: carefully strdup a possibly-NULL name

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2901bbe (apply: free patch->{def,old,new}_name fields, 2012-03-21)
cleaned up the memory management of filenames in the patches, but
forgot that find_name_traditional() can return NULL as a way of saying
"I couldn't find a name".

That NULL unfortunately gets passed into xstrdup() next, resulting in
a segfault.  Use null_strdup() so as to safely propagate the null,
which will let us emit the correct error message.

Reported-by: DevHC on #git
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Thomas Rast
2013-06-21 13:38:00 +02:00
committed by Junio C Hamano
parent 0ce2e396ee
commit 212eb96a96
2 changed files with 15 additions and 1 deletions
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2
builtin/apply.c
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@ -898,7 +898,7 @@ static void parse_traditional_patch(const char *first, const char *second, struc
patch->old_name = name;
} else {
patch->old_name = name;
patch->new_name = xstrdup(name);
patch->new_name = null_strdup(name);
}
}
if (!name)