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authorJay Soffian <jaysoffian@gmail.com>2010-02-08 22:48:13 -0500
committerJunio C Hamano <gitster@pobox.com>2010-02-08 21:52:44 -0800
commit92f9e273e86d505e4c2a28bc053eb514ca2cc552 (patch)
tree91170fd1acacb90306c8acb2f87f4750c877f217
parent153559a964f436aeb909e3b7e86ceaa998aeed68 (diff)
downloadgit-92f9e273e86d505e4c2a28bc053eb514ca2cc552.tar.gz
blame: prevent a segv when -L given start > EOF
blame would segv if given -L <lineno> with <lineno> past the end of the file. While we're fixing the bug, add test cases for an invalid <start> when called as -L <start>,<end> or -L<start>. Signed-off-by: Jay Soffian <jaysoffian@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin-blame.c2
-rwxr-xr-xt/t8003-blame.sh8
2 files changed, 9 insertions, 1 deletions
diff --git a/builtin-blame.c b/builtin-blame.c
index 98e818ce6a..4094f3c061 100644
--- a/builtin-blame.c
+++ b/builtin-blame.c
@@ -2432,7 +2432,7 @@ parse_done:
if (top < 1)
top = lno;
bottom--;
- if (lno < top)
+ if (lno < top || lno < bottom)
die("file %s has only %lu lines", path, lno);
ent = xcalloc(1, sizeof(*ent));
diff --git a/t/t8003-blame.sh b/t/t8003-blame.sh
index ad834f200a..4a8db74f7e 100755
--- a/t/t8003-blame.sh
+++ b/t/t8003-blame.sh
@@ -157,4 +157,12 @@ EOF
git --no-pager blame $COMMIT -- uno >/dev/null
'
+test_expect_success 'blame -L with invalid start' '
+ test_must_fail git blame -L5 tres 2>&1 | grep "has only 2 lines"
+'
+
+test_expect_success 'blame -L with invalid end' '
+ git blame -L1,5 tres 2>&1 | grep "has only 2 lines"
+'
+
test_done