66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0
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*
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* Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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*/
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "containers.h"
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#include "config.h"
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#include "ipc.h"
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#include "subcommands.h"
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int setconf_main(int argc, char *argv[])
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{
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struct wgdevice *device = NULL;
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struct config_ctx ctx;
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FILE *config_input = NULL;
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char *config_buffer = NULL;
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size_t config_buffer_len = 0;
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int ret = 1;
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if (argc != 3) {
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fprintf(stderr, "Usage: %s %s <interface> <configuration filename>\n", PROG_NAME, argv[0]);
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return 1;
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}
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config_input = fopen(argv[2], "r");
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if (!config_input) {
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perror("fopen");
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return 1;
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}
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if (!config_read_init(&ctx, !strcmp(argv[0], "addconf"))) {
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fclose(config_input);
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return 1;
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}
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while (getline(&config_buffer, &config_buffer_len, config_input) >= 0) {
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if (!config_read_line(&ctx, config_buffer)) {
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fprintf(stderr, "Configuration parsing error\n");
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goto cleanup;
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}
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}
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device = config_read_finish(&ctx);
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if (!device) {
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fprintf(stderr, "Invalid configuration\n");
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goto cleanup;
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}
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strncpy(device->name, argv[1], IFNAMSIZ - 1);
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device->name[IFNAMSIZ - 1] = '\0';
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if (ipc_set_device(device) != 0) {
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perror("Unable to modify interface");
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goto cleanup;
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}
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ret = 0;
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cleanup:
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if (config_input)
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fclose(config_input);
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free(config_buffer);
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free_wgdevice(device);
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return ret;
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}
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