add config parser

1 files changed, 63 insertions, 0 deletions

diff --git a/auth.c b/auth.c
new file mode 100644
index 0000000..da7263f
--- /dev/null
+++ b/auth.c
@@ -0,0 +1,63 @@
+/*
+ * uhttpd - Tiny single-threaded httpd
+ *
+ *   Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
+ *   Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include "uhttpd.h"
+
+static LIST_HEAD(auth_realms);
+
+void uh_auth_add(const char *path, const char *user, const char *pass)
+{
+	struct auth_realm *new = NULL;
+	struct passwd *pwd;
+	const char *new_pass = NULL;
+
+#ifdef HAVE_SHADOW
+	struct spwd *spwd;
+#endif
+
+	/* given password refers to a passwd entry */
+	if ((strlen(pass) > 3) && !strncmp(pass, "$p$", 3)) {
+#ifdef HAVE_SHADOW
+		/* try to resolve shadow entry */
+		spwd = getspnam(&pass[3]);
+		if (spwd)
+			new_pass = spwd->sp_pwdp;
+#endif
+		if (!new_pass) {
+			pwd = getpwnam(&pass[3]);
+			if (pwd && pwd->pw_passwd && pwd->pw_passwd[0] &&
+			    pwd->pw_passwd[0] != '!')
+				new_pass = pwd->pw_passwd;
+		}
+	} else {
+		new_pass = pass;
+	}
+
+	if (!new_pass || !new_pass[0])
+		return;
+
+	new = calloc(1, sizeof(*new));
+	if (!new)
+		return;
+
+	snprintf(new->path, sizeof(new->path), "%s", path);
+	snprintf(new->user, sizeof(new->user), "%s", user);
+	snprintf(new->pass, sizeof(new->user), "%s", new_pass);
+	list_add(&new->list, &auth_realms);
+}