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-rw-r--r--refs.c36
1 files changed, 20 insertions, 16 deletions
diff --git a/refs.c b/refs.c
index 0900f54174..3127518e28 100644
--- a/refs.c
+++ b/refs.c
@@ -21,12 +21,13 @@ struct ref_lock {
* 2: ., look for a preceding . to reject .. in refs
* 3: {, look for a preceding @ to reject @{ in refs
* 4: A bad character: ASCII control characters, and
- * "*", ":", "?", "[", "\", "^", "~", SP, or TAB
+ * ":", "?", "[", "\", "^", "~", SP, or TAB
+ * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set
*/
static unsigned char refname_disposition[256] = {
1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 2, 1,
+ 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0,
@@ -73,12 +74,13 @@ static unsigned char refname_disposition[256] = {
* - any path component of it begins with ".", or
* - it has double dots "..", or
* - it has ASCII control characters, or
- * - it has "*", ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or
+ * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or
+ * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or
* - it ends with a "/", or
* - it ends with ".lock", or
* - it contains a "@{" portion
*/
-static int check_refname_component(const char *refname, int flags)
+static int check_refname_component(const char *refname, int *flags)
{
const char *cp;
char last = '\0';
@@ -99,6 +101,16 @@ static int check_refname_component(const char *refname, int flags)
break;
case 4:
return -1;
+ case 5:
+ if (!(*flags & REFNAME_REFSPEC_PATTERN))
+ return -1; /* refspec can't be a pattern */
+
+ /*
+ * Unset the pattern flag so that we only accept
+ * a single asterisk for one side of refspec.
+ */
+ *flags &= ~ REFNAME_REFSPEC_PATTERN;
+ break;
}
last = ch;
}
@@ -123,18 +135,10 @@ int check_refname_format(const char *refname, int flags)
while (1) {
/* We are at the start of a path component. */
- component_len = check_refname_component(refname, flags);
- if (component_len <= 0) {
- if ((flags & REFNAME_REFSPEC_PATTERN) &&
- refname[0] == '*' &&
- (refname[1] == '\0' || refname[1] == '/')) {
- /* Accept one wildcard as a full refname component. */
- flags &= ~REFNAME_REFSPEC_PATTERN;
- component_len = 1;
- } else {
- return -1;
- }
- }
+ component_len = check_refname_component(refname, &flags);
+ if (component_len <= 0)
+ return -1;
+
component_count++;
if (refname[component_len] == '\0')
break;