Replace a chain of stpcpy's with a sprintf

- That's clearer and doesn't require _POSIX_SOURCE defines (that are
  missing anyway)

diff --git a/prototype.c b/prototype.c
index a892666..fa52ff3 100644 (file)
--- a/prototype.c
+++ b/prototype.c
@@ -342,9 +342,8 @@ consider_config_dir(struct protolib_cache *cache,
                    const char *path, const char *key)
 {
        size_t len = sizeof ".conf";
-       char slash[2] = {'/'};
        char *buf = alloca(strlen(path) + 1 + strlen(key) + len);
-       strcpy(stpcpy(stpcpy(stpcpy(buf, path), slash), key), ".conf");
+       sprintf(buf, "%s/%s.conf", path, key);
 
        return protolib_cache_file(cache, buf, 0);
 }