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-rw-r--r--builtin-apply.c11
-rwxr-xr-xt/t4120-apply-popt.sh5
2 files changed, 14 insertions, 2 deletions
diff --git a/builtin-apply.c b/builtin-apply.c
index 36e2f9d..218363f 100644
--- a/builtin-apply.c
+++ b/builtin-apply.c
@@ -404,6 +404,9 @@ static char *squash_slash(char *name)
{
int i = 0, j = 0;
+ if (!name)
+ return NULL;
+
while (name[i]) {
if ((name[j++] = name[i++]) == '/')
while (name[i] == '/')
@@ -416,7 +419,10 @@ static char *squash_slash(char *name)
static char *find_name(const char *line, char *def, int p_value, int terminate)
{
int len;
- const char *start = line;
+ const char *start = NULL;
+
+ if (p_value == 0)
+ start = line;
if (*line == '"') {
struct strbuf name = STRBUF_INIT;
@@ -1199,7 +1205,8 @@ static int find_header(char *line, unsigned long size, int *hdrsize, struct patc
continue;
if (!patch->old_name && !patch->new_name) {
if (!patch->def_name)
- die("git diff header lacks filename information (line %d)", linenr);
+ die("git diff header lacks filename information when removing "
+ "%d leading pathname components (line %d)" , p_value, linenr);
patch->old_name = patch->new_name = patch->def_name;
}
patch->is_toplevel_relative = 1;
diff --git a/t/t4120-apply-popt.sh b/t/t4120-apply-popt.sh
index 83d4ba6..b463b4f 100755
--- a/t/t4120-apply-popt.sh
+++ b/t/t4120-apply-popt.sh
@@ -22,4 +22,9 @@ test_expect_success 'apply git diff with -p2' '
git apply -p2 patch.file
'
+test_expect_success 'apply with too large -p' '
+ test_must_fail git apply --stat -p3 patch.file 2>err &&
+ grep "removing 3 leading" err
+'
+
test_done