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authorLibravatar Thomas Rast <trast@inf.ethz.ch>2013-06-21 13:38:00 +0200
committerLibravatar Junio C Hamano <gitster@pobox.com>2013-06-21 08:36:07 -0700
commit212eb96a96e256933a76e48d85fa4f500bed0dee (patch)
tree114f51785e5003bb54b424f0bf5eabd574b53cc5
parentGit 1.7.11 (diff)
downloadtgif-212eb96a96e256933a76e48d85fa4f500bed0dee.tar.xz
apply: carefully strdup a possibly-NULL name
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>
-rw-r--r--builtin/apply.c2
-rwxr-xr-xt/t4111-apply-subdir.sh14
2 files changed, 15 insertions, 1 deletions
diff --git a/builtin/apply.c b/builtin/apply.c
index b4428ea34f..f69a864abe 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -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)
diff --git a/t/t4111-apply-subdir.sh b/t/t4111-apply-subdir.sh
index 7c398432ba..1618a6dbc7 100755
--- a/t/t4111-apply-subdir.sh
+++ b/t/t4111-apply-subdir.sh
@@ -86,6 +86,20 @@ test_expect_success 'apply --index from subdir of toplevel' '
test_cmp expected sub/dir/file
'
+test_expect_success 'apply half-broken patch from subdir of toplevel' '
+ (
+ cd sub/dir &&
+ test_must_fail git apply <<-EOF
+ --- sub/dir/file
+ +++ sub/dir/file
+ @@ -1,0 +1,0 @@
+ --- file_in_root
+ +++ file_in_root
+ @@ -1,0 +1,0 @@
+ EOF
+ )
+'
+
test_expect_success 'apply from .git dir' '
cp postimage expected &&
cp preimage .git/file &&