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ifquery: implement --list

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This commit is contained in:
Ariadne Conill 2020-07-18 19:26:20 -06:00
parent c189467707
commit 9eea60986a
1 changed files with 42 additions and 1 deletions
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43
cmd/ifquery.c
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@ -67,10 +67,35 @@ usage()
printf(" -h, --help this help\n");
printf(" -V, --version show this program's version\n");
printf(" -i, --interfaces FILE use FILE for interface definitions\n");
printf(" -L, --list list matching interfaces\n");
printf(" -a, --auto only match against interfaces hinted as 'auto'\n");
exit(1);
}
struct match_options {
bool is_auto;
char *exclude_pattern;
char *include_pattern;
};
void
list_interfaces(struct lif_dict *collection, struct match_options *opts)
{
struct lif_node *iter;
LIF_DICT_FOREACH(iter, collection)
{
struct lif_dict_entry *entry = iter->data;
struct lif_interface *iface = entry->data;
if (opts->is_auto && !iface->is_auto)
continue;
printf("%s\n", iface->ifname);
}
}
int
main(int argc, char *argv[])
{
@ -79,13 +104,17 @@ main(int argc, char *argv[])
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
{"interfaces", required_argument, 0, 'i'},
{"list", no_argument, 0, 'L'},
{"auto", no_argument, 0, 'a'},
{NULL, 0, 0, 0}
};
struct match_options match_opts = {};
bool listing = false;
char *interfaces_file = INTERFACES_FILE;
for (;;)
{
int c = getopt_long(argc, argv, "hVi:", long_options, NULL);
int c = getopt_long(argc, argv, "hVi:La", long_options, NULL);
if (c == -1)
break;
@ -99,6 +128,12 @@ main(int argc, char *argv[])
case 'i':
interfaces_file = optarg;
break;
case 'L':
listing = true;
break;
case 'a':
match_opts.is_auto = true;
break;
}
}
@ -108,6 +143,12 @@ main(int argc, char *argv[])
return EXIT_FAILURE;
}
if (listing)
{
list_interfaces(&collection, &match_opts);
return EXIT_SUCCESS;
}
if (optind >= argc)
usage();