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git-blame: prevent argument parsing segfault

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The 3rd branch in builtin-blame.c should also check for lacking
arguments.  Running that in top dir does not trigger the problem
because the 'prefix' is NULL.

Signed-off-by: Tommi Kyntola <tommi.kyntola@ray.fi>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Tommi Kyntola 2007-02-16 10:50:58 +02:00 committed by Junio C Hamano
parent de6f0def50
commit f44213258d
1 changed files with 3 additions and 0 deletions
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3
builtin-blame.c
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@ -2200,6 +2200,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
if (!strcmp(argv[j], "--"))
seen_dashdash = j;
if (seen_dashdash) {
/* (2) */
if (seen_dashdash + 1 != argc - 1)
usage(blame_usage);
path = add_prefix(prefix, argv[seen_dashdash + 1]);
@ -2208,6 +2209,8 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
}
else {
/* (3) */
if (argc <= i)
usage(blame_usage);
path = add_prefix(prefix, argv[i]);
if (i + 1 == argc - 1) {
final_commit_name = argv[i + 1];