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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*/
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "containers.h"
#include "config.h"
#include "ipc.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, !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;
}
}
device = config_read_finish(&ctx);
if (!device) {
fprintf(stderr, "Invalid configuration\n");
goto cleanup;
}
strncpy(device->name, argv[1], IFNAMSIZ - 1);
device->name[IFNAMSIZ - 1] = '\0';
if (ipc_set_device(device) != 0) {
perror("Unable to modify interface");
goto cleanup;
}
ret = 0;
cleanup:
if (config_input)
fclose(config_input);
free(config_buffer);
free_wgdevice(device);
return ret;
}
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