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diff --git a/remote.c b/remote.c
index 0d6020beb8ca9159df09cc947d920e4af8698eca..c45d96e98fffe3411284144b6d836cf499d42ba4 100644 (file)
--- a/remote.c
+++ b/remote.c
if (!longest)
return url;
- ret = malloc(rewrite[longest_i]->baselen +
+ ret = xmalloc(rewrite[longest_i]->baselen +
(strlen(url) - longest->len) + 1);
strcpy(ret, rewrite[longest_i]->base);
strcpy(ret + rewrite[longest_i]->baselen, url + longest->len);
ret->name = xstrndup(name, len);
else
ret->name = xstrdup(name);
- refname = malloc(strlen(name) + strlen("refs/heads/") + 1);
+ refname = xmalloc(strlen(name) + strlen("refs/heads/") + 1);
strcpy(refname, "refs/heads/");
strcpy(refname + strlen("refs/heads/"), ret->name);
ret->refname = refname;
alias_all_urls();
}
+/*
+ * We need to make sure the tracking branches are well formed, but a
+ * wildcard refspec in "struct refspec" must have a trailing slash. We
+ * temporarily drop the trailing '/' while calling check_ref_format(),
+ * and put it back. The caller knows that a CHECK_REF_FORMAT_ONELEVEL
+ * error return is Ok for a wildcard refspec.
+ */
+static int verify_refname(char *name, int is_glob)
+{
+ int result, len = -1;
+
+ if (is_glob) {
+ len = strlen(name);
+ assert(name[len - 1] == '/');
+ name[len - 1] = '\0';
+ }
+ result = check_ref_format(name);
+ if (is_glob)
+ name[len - 1] = '/';
+ return result;
+}
+
+/*
+ * This function frees a refspec array.
+ * Warning: code paths should be checked to ensure that the src
+ * and dst pointers are always freeable pointers as well
+ * as the refspec pointer itself.
+ */
+static void free_refspecs(struct refspec *refspec, int nr_refspec)
+{
+ int i;
+
+ if (!refspec)
+ return;
+
+ for (i = 0; i < nr_refspec; i++) {
+ free(refspec[i].src);
+ free(refspec[i].dst);
+ }
+ free(refspec);
+}
+
static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify)
{
int i;
@@ -434,11 +476,11 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec);
for (i = 0; i < nr_refspec; i++) {
- size_t llen, rlen;
+ size_t llen;
int is_glob;
const char *lhs, *rhs;
- llen = rlen = is_glob = 0;
+ llen = is_glob = 0;
lhs = refspec[i];
if (*lhs == '+') {
@@ -458,12 +500,9 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
}
if (rhs) {
- rhs++;
- rlen = strlen(rhs);
+ size_t rlen = strlen(++rhs);
is_glob = (2 <= rlen && !strcmp(rhs + rlen - 2, "/*"));
- if (is_glob)
- rlen -= 2;
- rs[i].dst = xstrndup(rhs, rlen);
+ rs[i].dst = xstrndup(rhs, rlen - is_glob);
}
llen = (rhs ? (rhs - lhs - 1) : strlen(lhs));
@@ -471,7 +510,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
if ((rhs && !is_glob) || (!rhs && fetch))
goto invalid;
is_glob = 1;
- llen -= 2;
+ llen--;
} else if (rhs && is_glob) {
goto invalid;
}
@@ -488,7 +527,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
if (!*rs[i].src)
; /* empty is ok */
else {
- st = check_ref_format(rs[i].src);
+ st = verify_refname(rs[i].src, is_glob);
if (st && st != CHECK_REF_FORMAT_ONELEVEL)
goto invalid;
}
@@ -503,7 +542,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
} else if (!*rs[i].dst) {
; /* ok */
} else {
- st = check_ref_format(rs[i].dst);
+ st = verify_refname(rs[i].dst, is_glob);
if (st && st != CHECK_REF_FORMAT_ONELEVEL)
goto invalid;
}
@@ -518,7 +557,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
if (!*rs[i].src)
; /* empty is ok */
else if (is_glob) {
- st = check_ref_format(rs[i].src);
+ st = verify_refname(rs[i].src, is_glob);
if (st && st != CHECK_REF_FORMAT_ONELEVEL)
goto invalid;
}
@@ -532,13 +571,13 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
* - otherwise it must be a valid looking ref.
*/
if (!rs[i].dst) {
- st = check_ref_format(rs[i].src);
+ st = verify_refname(rs[i].src, is_glob);
if (st && st != CHECK_REF_FORMAT_ONELEVEL)
goto invalid;
} else if (!*rs[i].dst) {
goto invalid;
} else {
- st = check_ref_format(rs[i].dst);
+ st = verify_refname(rs[i].dst, is_glob);
if (st && st != CHECK_REF_FORMAT_ONELEVEL)
goto invalid;
}
@@ -548,7 +587,12 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
invalid:
if (verify) {
- free(rs);
+ /*
+ * nr_refspec must be greater than zero and i must be valid
+ * since it is only possible to reach this point from within
+ * the for loop above.
+ */
+ free_refspecs(rs, i+1);
return NULL;
}
die("Invalid refspec '%s'", refspec[i]);
struct refspec *refspec;
refspec = parse_refspec_internal(1, fetch_refspec, 1, 1);
- if (refspec)
- free(refspec);
+ free_refspecs(refspec, 1);
return !!refspec;
}
return parse_refspec_internal(nr_refspec, refspec, 1, 0);
}
-struct refspec *parse_push_refspec(int nr_refspec, const char **refspec)
+static struct refspec *parse_push_refspec(int nr_refspec, const char **refspec)
{
return parse_refspec_internal(nr_refspec, refspec, 0, 0);
}
if (!fetch->dst)
continue;
if (fetch->pattern) {
- if (!prefixcmp(needle, key) &&
- needle[strlen(key)] == '/') {
+ if (!prefixcmp(needle, key)) {
*result = xmalloc(strlen(value) +
strlen(needle) -
strlen(key) + 1);
return ret;
}
-void free_ref(struct ref *ref)
+static void free_ref(struct ref *ref)
{
if (!ref)
return;
continue;
}
- if (rs[i].pattern &&
- !prefixcmp(src->name, rs[i].src) &&
- src->name[strlen(rs[i].src)] == '/')
+ if (rs[i].pattern && !prefixcmp(src->name, rs[i].src))
return rs + i;
}
if (matching_refs != -1)