git_mkstemp(): be careful not to overflow the path buffer.

diff --git a/builtin-config.c b/builtin-config.c
index 3f7cab16d53718844a3964653a59c0feda730ad0..7d2063c1d2e9564306bb2807548f28a067ccdb88 100644 (file)
--- a/builtin-config.c
+++ b/builtin-config.c
@@ -178,14 +178,14 @@ int cmd_config(int argc, const char **argv, const char *prefix)
                        char *home = getenv("HOME");
                        if (home) {
                                char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
-                               setenv("GIT_CONFIG", user_config, 1);
+                               setenv(CONFIG_ENVIRONMENT, user_config, 1);
                                free(user_config);
                        } else {
                                die("$HOME not set");
                        }
                }
                else if (!strcmp(argv[1], "--system"))
-                       setenv("GIT_CONFIG", ETC_GITCONFIG, 1);
+                       setenv(CONFIG_ENVIRONMENT, ETC_GITCONFIG, 1);
                else if (!strcmp(argv[1], "--null") || !strcmp(argv[1], "-z")) {
                        term = '\0';
                        delim = '\n';