Fix submodule sync with relative submodule URLs

[git.git] / remote.c

diff --git a/remote.c b/remote.c
index 105668f8a3cf13c2a759e9da4d0acc50ef781de9..c45d96e98fffe3411284144b6d836cf499d42ba4 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -69,7 +69,7 @@ static const char *alias_url(const char *url)
        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);
@@ -152,7 +152,7 @@ static struct branch *make_branch(const char *name, int 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;
@@ -449,6 +449,26 @@ static int verify_refname(char *name, int is_glob)
        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;
@@ -567,7 +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]);
@@ -579,7 +604,7 @@ int valid_fetch_refspec(const char *fetch_refspec_str)
        struct refspec *refspec;
 
        refspec = parse_refspec_internal(1, fetch_refspec, 1, 1);
-       free(refspec);
+       free_refspecs(refspec, 1);
        return !!refspec;
 }
 
@@ -588,7 +613,7 @@ struct refspec *parse_fetch_refspec(int nr_refspec, const char **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);
 }
@@ -758,7 +783,7 @@ struct ref *copy_ref_list(const struct ref *ref)
        return ret;
 }
 
-void free_ref(struct ref *ref)
+static void free_ref(struct ref *ref)
 {
        if (!ref)
                return;