apply: fix an incomplete comment in check_patch()

diff --git a/config.c b/config.c
index 2bbf02d1e8c2c05f9fba1149c307c1b3b06517fd..eeee986022fc8f235c43a2d45eb942fc0095f8b1 100644 (file)
--- a/config.c
+++ b/config.c
@@ -835,6 +835,8 @@ static int git_default_push_config(const char *var, const char *value)
                        push_default = PUSH_DEFAULT_NOTHING;
                else if (!strcmp(value, "matching"))
                        push_default = PUSH_DEFAULT_MATCHING;
+               else if (!strcmp(value, "simple"))
+                       push_default = PUSH_DEFAULT_SIMPLE;
                else if (!strcmp(value, "upstream"))
                        push_default = PUSH_DEFAULT_UPSTREAM;
                else if (!strcmp(value, "tracking")) /* deprecated */
@@ -843,8 +845,8 @@ static int git_default_push_config(const char *var, const char *value)
                        push_default = PUSH_DEFAULT_CURRENT;
                else {
                        error("Malformed value for %s: %s", var, value);
-                       return error("Must be one of nothing, matching, "
-                                    "tracking or current.");
+                       return error("Must be one of nothing, matching, simple, "
+                                    "upstream or current.");
                }
                return 0;
        }
@@ -1558,20 +1560,42 @@ static int section_name_match (const char *buf, const char *name)
        return 0;
 }
 
+static int section_name_is_ok(const char *name)
+{
+       /* Empty section names are bogus. */
+       if (!*name)
+               return 0;
+
+       /*
+        * Before a dot, we must be alphanumeric or dash. After the first dot,
+        * anything goes, so we can stop checking.
+        */
+       for (; *name && *name != '.'; name++)
+               if (*name != '-' && !isalnum(*name))
+                       return 0;
+       return 1;
+}
+
 /* if new_name == NULL, the section is removed instead */
 int git_config_rename_section_in_file(const char *config_filename,
                                      const char *old_name, const char *new_name)
 {
        int ret = 0, remove = 0;
        char *filename_buf = NULL;
-       struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1);
+       struct lock_file *lock;
        int out_fd;
        char buf[1024];
        FILE *config_file;
 
+       if (new_name && !section_name_is_ok(new_name)) {
+               ret = error("invalid section name: %s", new_name);
+               goto out;
+       }
+
        if (!config_filename)
                config_filename = filename_buf = git_pathdup("config");
 
+       lock = xcalloc(sizeof(struct lock_file), 1);
        out_fd = hold_lock_file_for_update(lock, config_filename, 0);
        if (out_fd < 0) {
                ret = error("could not lock config file %s", config_filename);