1 files changed, 61 insertions, 0 deletions
diff --git a/src/tools/setconf.c b/src/tools/setconf.c
new file mode 100644
index 0000000..81faa64
--- /dev/null
+++ b/src/tools/setconf.c
@@ -0,0 +1,61 @@
+/* Copyright 2015-2016 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */
+
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "config.h"
+#include "kernel.h"
+#include "subcommands.h"
+
+int setconf_main(int argc, char *argv[])
+{
+	struct wgdevice *device = NULL;
+	struct config_ctx ctx;
+	FILE *config_input = NULL;
+	char *config_buffer = NULL;
+	size_t config_buffer_len = 0;
+	int ret = 1;
+
+	if (argc != 3) {
+		fprintf(stderr, "Usage: %s %s <interface> <configuration filename>\n", PROG_NAME, argv[0]);
+		return 1;
+	}
+
+	config_input = fopen(argv[2], "r");
+	if (!config_input) {
+		perror("fopen");
+		return 1;
+	}
+	if (!config_read_init(&ctx, &device, !strcmp(argv[0], "addconf"))) {
+		fclose(config_input);
+		return 1;
+	}
+	while (getline(&config_buffer, &config_buffer_len, config_input) >= 0) {
+		if (!config_read_line(&ctx, config_buffer)) {
+			fprintf(stderr, "Configuration parsing error\n");
+			goto cleanup;
+		}
+	}
+	if (!config_read_finish(&ctx) || !device) {
+		fprintf(stderr, "Invalid configuration\n");
+		goto cleanup;
+	}
+	strncpy(device->interface, argv[1], IFNAMSIZ - 1);
+	device->interface[IFNAMSIZ - 1] = 0;
+
+	if (kernel_set_device(device) != 0) {
+		perror("Unable to set device");
+		goto cleanup;
+	}
+
+	ret = 0;
+
+cleanup:
+	if (config_input)
+		fclose(config_input);
+	free(config_buffer);
+	free(device);
+	return ret;
+}