138 lines
3.3 KiB
C
138 lines
3.3 KiB
C
/*
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* cmd/ifparse.c
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* Purpose: Redisplay /e/n/i in alternative formats.
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*
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* Copyright (c) 2020 Ariadne Conill <ariadne@dereferenced.org>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* This software is provided 'as is' and without any warranty, express or
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* implied. In no event shall the authors be liable for any damages arising
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* from the use of this software.
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*/
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#define _GNU_SOURCE
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#include <fnmatch.h>
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#include <stdio.h>
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#include <string.h>
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#include <getopt.h>
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#include "libifupdown/libifupdown.h"
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#include "cmd/multicall.h"
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#include "cmd/pretty-print-iface.h"
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static bool show_all = false;
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static bool allow_undefined = false;
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static void
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set_show_all(const char *arg)
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{
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(void) arg;
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show_all = true;
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}
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static void
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set_allow_undefined(const char *arg)
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{
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(void) arg;
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allow_undefined = true;
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}
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static struct if_option local_options[] = {
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{'A', "all", NULL, "show all interfaces", false, set_show_all},
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{'U', "allow-undefined", NULL, "allow querying undefined (virtual) interfaces", false, set_allow_undefined},
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};
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static struct if_option_group local_option_group = {
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.desc = "Program-specific options",
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.group_size = ARRAY_SIZE(local_options),
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.group = local_options
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};
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int
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ifparse_main(int argc, char *argv[])
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{
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struct lif_dict state = {};
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struct lif_dict collection = {};
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struct lif_interface_file_parse_state parse_state = {
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.collection = &collection,
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};
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lif_interface_collection_init(&collection);
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if (!lif_state_read_path(&state, exec_opts.state_file))
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{
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fprintf(stderr, "%s: could not parse %s\n", argv0, exec_opts.state_file);
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return EXIT_FAILURE;
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}
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if (!lif_interface_file_parse(&parse_state, exec_opts.interfaces_file))
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{
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fprintf(stderr, "%s: could not parse %s\n", argv0, exec_opts.interfaces_file);
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return EXIT_FAILURE;
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}
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if (match_opts.property == NULL && lif_lifecycle_count_rdepends(&exec_opts, &collection) == -1)
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{
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fprintf(stderr, "%s: could not validate dependency tree\n", argv0);
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return EXIT_FAILURE;
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}
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if (!lif_compat_apply(&collection))
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{
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fprintf(stderr, "%s: failed to apply compatibility glue\n", argv0);
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return EXIT_FAILURE;
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}
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if (show_all)
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{
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struct lif_node *n;
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LIF_DICT_FOREACH(n, &collection)
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{
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struct lif_dict_entry *entry = n->data;
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prettyprint_interface_eni(entry->data);
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}
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return EXIT_SUCCESS;
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}
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if (optind >= argc)
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generic_usage(self_applet, EXIT_FAILURE);
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int idx = optind;
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for (; idx < argc; idx++)
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{
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struct lif_dict_entry *entry = lif_dict_find(&collection, argv[idx]);
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struct lif_interface *iface = NULL;
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if (entry != NULL)
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iface = entry->data;
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if (entry == NULL && allow_undefined)
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iface = lif_interface_collection_find(&collection, argv[idx]);
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if (iface == NULL)
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{
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fprintf(stderr, "%s: unknown interface %s\n", argv0, argv[idx]);
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return EXIT_FAILURE;
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}
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prettyprint_interface_eni(iface);
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}
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return EXIT_SUCCESS;
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}
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struct if_applet ifparse_applet = {
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.name = "ifparse",
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.desc = "redisplay interface configuration",
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.main = ifparse_main,
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.usage = "ifparse [options] <interfaces>\n ifquery [options] --all",
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.manpage = "8 ifparse",
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.groups = { &global_option_group, &match_option_group, &exec_option_group, &local_option_group },
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};
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