| /*** |
| This file is part of avahi. |
| |
| avahi is free software; you can redistribute it and/or modify it |
| under the terms of the GNU Lesser General Public License as |
| published by the Free Software Foundation; either version 2.1 of the |
| License, or (at your option) any later version. |
| |
| avahi is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General |
| Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with avahi; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| USA. |
| ***/ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <getopt.h> |
| #include <assert.h> |
| #include <string.h> |
| #include <sys/types.h> |
| #include <errno.h> |
| #include <locale.h> |
| |
| #include <avahi-common/simple-watch.h> |
| #include <avahi-common/error.h> |
| #include <avahi-common/malloc.h> |
| #include <avahi-common/alternative.h> |
| #include <avahi-common/i18n.h> |
| #include <avahi-client/client.h> |
| #include <avahi-client/publish.h> |
| |
| #include "sigint.h" |
| |
| typedef enum { |
| COMMAND_UNSPEC, |
| COMMAND_HELP, |
| COMMAND_VERSION, |
| COMMAND_PUBLISH_SERVICE, |
| COMMAND_PUBLISH_ADDRESS |
| } Command; |
| |
| typedef struct Config { |
| int verbose, no_fail, no_reverse; |
| Command command; |
| char *name, *stype, *domain, *host; |
| uint16_t port; |
| AvahiStringList *txt, *subtypes; |
| AvahiAddress address; |
| } Config; |
| |
| static AvahiSimplePoll *simple_poll = NULL; |
| static AvahiClient *client = NULL; |
| static AvahiEntryGroup *entry_group = NULL; |
| |
| static int register_stuff(Config *config); |
| |
| static void entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, void *userdata) { |
| Config *config = userdata; |
| |
| assert(g); |
| assert(config); |
| |
| switch (state) { |
| |
| case AVAHI_ENTRY_GROUP_ESTABLISHED: |
| |
| fprintf(stderr, _("Established under name '%s'\n"), config->name); |
| break; |
| |
| case AVAHI_ENTRY_GROUP_FAILURE: |
| |
| fprintf(stderr, _("Failed to register: %s\n"), avahi_strerror(avahi_client_errno(client))); |
| break; |
| |
| case AVAHI_ENTRY_GROUP_COLLISION: { |
| char *n; |
| |
| if (config->command == COMMAND_PUBLISH_SERVICE) |
| n = avahi_alternative_service_name(config->name); |
| else { |
| assert(config->command == COMMAND_PUBLISH_ADDRESS); |
| n = avahi_alternative_host_name(config->name); |
| } |
| |
| fprintf(stderr, _("Name collision, picking new name '%s'.\n"), n); |
| avahi_free(config->name); |
| config->name = n; |
| |
| register_stuff(config); |
| |
| break; |
| } |
| |
| case AVAHI_ENTRY_GROUP_UNCOMMITED: |
| case AVAHI_ENTRY_GROUP_REGISTERING: |
| ; |
| } |
| } |
| |
| static int register_stuff(Config *config) { |
| assert(config); |
| |
| if (!entry_group) { |
| if (!(entry_group = avahi_entry_group_new(client, entry_group_callback, config))) { |
| fprintf(stderr, _("Failed to create entry group: %s\n"), avahi_strerror(avahi_client_errno(client))); |
| return -1; |
| } |
| } |
| |
| assert(avahi_entry_group_is_empty(entry_group)); |
| |
| if (config->command == COMMAND_PUBLISH_ADDRESS) { |
| |
| if (avahi_entry_group_add_address(entry_group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, config->no_reverse ? AVAHI_PUBLISH_NO_REVERSE : 0, config->name, &config->address) < 0) { |
| fprintf(stderr, _("Failed to add address: %s\n"), avahi_strerror(avahi_client_errno(client))); |
| return -1; |
| } |
| |
| } else { |
| AvahiStringList *i; |
| |
| assert(config->command == COMMAND_PUBLISH_SERVICE); |
| |
| if (avahi_entry_group_add_service_strlst(entry_group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, config->name, config->stype, config->domain, config->host, config->port, config->txt) < 0) { |
| fprintf(stderr, _("Failed to add service: %s\n"), avahi_strerror(avahi_client_errno(client))); |
| return -1; |
| } |
| |
| for (i = config->subtypes; i; i = i->next) |
| if (avahi_entry_group_add_service_subtype(entry_group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, config->name, config->stype, config->domain, (char*) i->text) < 0) { |
| fprintf(stderr, _("Failed to add subtype '%s': %s\n"), i->text, avahi_strerror(avahi_client_errno(client))); |
| return -1; |
| } |
| } |
| |
| avahi_entry_group_commit(entry_group); |
| |
| return 0; |
| } |
| |
| static void client_callback(AvahiClient *c, AvahiClientState state, AVAHI_GCC_UNUSED void * userdata) { |
| Config *config = userdata; |
| |
| client = c; |
| |
| switch (state) { |
| case AVAHI_CLIENT_FAILURE: |
| |
| if (config->no_fail && avahi_client_errno(c) == AVAHI_ERR_DISCONNECTED) { |
| int error; |
| |
| /* We have been disconnected, so let reconnect */ |
| |
| fprintf(stderr, _("Disconnected, reconnecting ...\n")); |
| |
| avahi_client_free(client); |
| client = NULL; |
| entry_group = NULL; |
| |
| if (!(client = avahi_client_new(avahi_simple_poll_get(simple_poll), AVAHI_CLIENT_NO_FAIL, client_callback, config, &error))) { |
| fprintf(stderr, _("Failed to create client object: %s\n"), avahi_strerror(error)); |
| avahi_simple_poll_quit(simple_poll); |
| } |
| |
| } else { |
| fprintf(stderr, _("Client failure, exiting: %s\n"), avahi_strerror(avahi_client_errno(c))); |
| avahi_simple_poll_quit(simple_poll); |
| } |
| |
| break; |
| |
| case AVAHI_CLIENT_S_RUNNING: |
| |
| if (register_stuff(config) < 0) |
| avahi_simple_poll_quit(simple_poll); |
| |
| break; |
| |
| case AVAHI_CLIENT_S_COLLISION: |
| |
| if (config->verbose) |
| fprintf(stderr, _("Host name conflict\n")); |
| |
| /* Fall through */ |
| |
| case AVAHI_CLIENT_S_REGISTERING: |
| |
| if (entry_group) { |
| avahi_entry_group_free(entry_group); |
| entry_group = NULL; |
| } |
| break; |
| |
| case AVAHI_CLIENT_CONNECTING: |
| |
| if (config->verbose) |
| fprintf(stderr, _("Waiting for daemon ...\n")); |
| |
| break; |
| |
| ; |
| } |
| } |
| |
| static void help(FILE *f, const char *argv0) { |
| fprintf(f, |
| _("%s [options] %s <name> <type> <port> [<txt ...>]\n" |
| "%s [options] %s <host-name> <address>\n\n" |
| " -h --help Show this help\n" |
| " -V --version Show version\n" |
| " -s --service Publish service\n" |
| " -a --address Publish address\n" |
| " -v --verbose Enable verbose mode\n" |
| " -d --domain=DOMAIN Domain to publish service in\n" |
| " -H --host=DOMAIN Host where service resides\n" |
| " --subtype=SUBTYPE An additional subtype to register this service with\n" |
| " -R --no-reverse Do not publish reverse entry with address\n" |
| " -f --no-fail Don't fail if the daemon is not available\n"), |
| argv0, strstr(argv0, "service") ? "[-s]" : "-s", |
| argv0, strstr(argv0, "address") ? "[-a]" : "-a"); |
| } |
| |
| static int parse_command_line(Config *c, const char *argv0, int argc, char *argv[]) { |
| int o; |
| |
| enum { |
| ARG_SUBTYPE = 256 |
| }; |
| |
| static const struct option long_options[] = { |
| { "help", no_argument, NULL, 'h' }, |
| { "version", no_argument, NULL, 'V' }, |
| { "service", no_argument, NULL, 's' }, |
| { "address", no_argument, NULL, 'a' }, |
| { "verbose", no_argument, NULL, 'v' }, |
| { "domain", required_argument, NULL, 'd' }, |
| { "host", required_argument, NULL, 'H' }, |
| { "subtype", required_argument, NULL, ARG_SUBTYPE}, |
| { "no-reverse", no_argument, NULL, 'R' }, |
| { "no-fail", no_argument, NULL, 'f' }, |
| { NULL, 0, NULL, 0 } |
| }; |
| |
| assert(c); |
| |
| c->command = strstr(argv0, "address") ? COMMAND_PUBLISH_ADDRESS : (strstr(argv0, "service") ? COMMAND_PUBLISH_SERVICE : COMMAND_UNSPEC); |
| c->verbose = c->no_fail = c->no_reverse = 0; |
| c->host = c->name = c->domain = c->stype = NULL; |
| c->port = 0; |
| c->txt = c->subtypes = NULL; |
| |
| while ((o = getopt_long(argc, argv, "hVsavRd:H:f", long_options, NULL)) >= 0) { |
| |
| switch(o) { |
| case 'h': |
| c->command = COMMAND_HELP; |
| break; |
| case 'V': |
| c->command = COMMAND_VERSION; |
| break; |
| case 's': |
| c->command = COMMAND_PUBLISH_SERVICE; |
| break; |
| case 'a': |
| c->command = COMMAND_PUBLISH_ADDRESS; |
| break; |
| case 'v': |
| c->verbose = 1; |
| break; |
| case 'R': |
| c->no_reverse = 1; |
| break; |
| case 'd': |
| avahi_free(c->domain); |
| c->domain = avahi_strdup(optarg); |
| break; |
| case 'H': |
| avahi_free(c->host); |
| c->host = avahi_strdup(optarg); |
| break; |
| case 'f': |
| c->no_fail = 1; |
| break; |
| case ARG_SUBTYPE: |
| c->subtypes = avahi_string_list_add(c->subtypes, optarg); |
| break; |
| default: |
| return -1; |
| } |
| } |
| |
| if (c->command == COMMAND_PUBLISH_ADDRESS) { |
| if (optind+2 != argc) { |
| fprintf(stderr, _("Bad number of arguments\n")); |
| return -1; |
| } |
| |
| avahi_free(c->name); |
| c->name = avahi_strdup(argv[optind]); |
| avahi_address_parse(argv[optind+1], AVAHI_PROTO_UNSPEC, &c->address); |
| |
| } else if (c->command == COMMAND_PUBLISH_SERVICE) { |
| |
| char *e; |
| long int p; |
| int i; |
| |
| if (optind+3 > argc) { |
| fprintf(stderr, _("Bad number of arguments\n")); |
| return -1; |
| } |
| |
| c->name = avahi_strdup(argv[optind]); |
| c->stype = avahi_strdup(argv[optind+1]); |
| |
| errno = 0; |
| p = strtol(argv[optind+2], &e, 0); |
| |
| if (errno != 0 || *e || p < 0 || p > 0xFFFF) { |
| fprintf(stderr, _("Failed to parse port number: %s\n"), argv[optind+2]); |
| return -1; |
| } |
| |
| c->port = p; |
| |
| for (i = optind+3; i < argc; i++) |
| c->txt = avahi_string_list_add(c->txt, argv[i]); |
| } |
| |
| return 0; |
| } |
| |
| int main(int argc, char *argv[]) { |
| int ret = 1, error; |
| Config config; |
| const char *argv0; |
| |
| avahi_init_i18n(); |
| setlocale(LC_ALL, ""); |
| |
| if ((argv0 = strrchr(argv[0], '/'))) |
| argv0++; |
| else |
| argv0 = argv[0]; |
| |
| if (parse_command_line(&config, argv0, argc, argv) < 0) |
| goto fail; |
| |
| switch (config.command) { |
| case COMMAND_UNSPEC: |
| ret = 1; |
| fprintf(stderr, _("No command specified.\n")); |
| break; |
| |
| case COMMAND_HELP: |
| help(stdout, argv0); |
| ret = 0; |
| break; |
| |
| case COMMAND_VERSION: |
| printf("%s "PACKAGE_VERSION"\n", argv0); |
| ret = 0; |
| break; |
| |
| case COMMAND_PUBLISH_SERVICE: |
| case COMMAND_PUBLISH_ADDRESS: |
| |
| if (!(simple_poll = avahi_simple_poll_new())) { |
| fprintf(stderr, _("Failed to create simple poll object.\n")); |
| goto fail; |
| } |
| |
| if (sigint_install(simple_poll) < 0) |
| goto fail; |
| |
| if (!(client = avahi_client_new(avahi_simple_poll_get(simple_poll), config.no_fail ? AVAHI_CLIENT_NO_FAIL : 0, client_callback, &config, &error))) { |
| fprintf(stderr, _("Failed to create client object: %s\n"), avahi_strerror(error)); |
| goto fail; |
| } |
| |
| if (avahi_client_get_state(client) != AVAHI_CLIENT_CONNECTING && config.verbose) { |
| const char *version, *hn; |
| |
| if (!(version = avahi_client_get_version_string(client))) { |
| fprintf(stderr, _("Failed to query version string: %s\n"), avahi_strerror(avahi_client_errno(client))); |
| goto fail; |
| } |
| |
| if (!(hn = avahi_client_get_host_name_fqdn(client))) { |
| fprintf(stderr, _("Failed to query host name: %s\n"), avahi_strerror(avahi_client_errno(client))); |
| goto fail; |
| } |
| |
| fprintf(stderr, _("Server version: %s; Host name: %s\n"), version, hn); |
| } |
| |
| avahi_simple_poll_loop(simple_poll); |
| ret = 0; |
| break; |
| } |
| |
| fail: |
| |
| if (client) |
| avahi_client_free(client); |
| |
| sigint_uninstall(); |
| |
| if (simple_poll) |
| avahi_simple_poll_free(simple_poll); |
| |
| avahi_free(config.host); |
| avahi_free(config.name); |
| avahi_free(config.stype); |
| avahi_free(config.domain); |
| avahi_string_list_free(config.subtypes); |
| avahi_string_list_free(config.txt); |
| |
| return ret; |
| } |
