X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-utils%2Favahi-browse.c;fp=avahi-utils%2Favahi-browse.c;h=0000000000000000000000000000000000000000;hb=f1de9dcaab953757252d51b4725cbfa36daa10a5;hp=4101895ee208df33b3a7de3b4472a69dfd521d84;hpb=7a5b2f69af7d36d6cd4153142f125fa011784e03;p=catta diff --git a/avahi-utils/avahi-browse.c b/avahi-utils/avahi-browse.c deleted file mode 100644 index 4101895..0000000 --- a/avahi-utils/avahi-browse.c +++ /dev/null @@ -1,879 +0,0 @@ -/*** - 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 -#endif - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "sigint.h" - -#if defined(HAVE_GDBM) || defined(HAVE_DBM) -#include "stdb.h" -#endif - -typedef enum { - COMMAND_HELP, - COMMAND_VERSION, - COMMAND_BROWSE_SERVICES, - COMMAND_BROWSE_ALL_SERVICES, - COMMAND_BROWSE_DOMAINS -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - , COMMAND_DUMP_STDB -#endif -} Command; - -typedef struct Config { - int verbose; - int terminate_on_all_for_now; - int terminate_on_cache_exhausted; - char *domain; - char *stype; - int ignore_local; - Command command; - int resolve; - int no_fail; - int parsable; -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - int no_db_lookup; -#endif -} Config; - -typedef struct ServiceInfo ServiceInfo; - -struct ServiceInfo { - AvahiIfIndex interface; - AvahiProtocol protocol; - char *name, *type, *domain; - - AvahiServiceResolver *resolver; - Config *config; - - AVAHI_LLIST_FIELDS(ServiceInfo, info); -}; - -static AvahiSimplePoll *simple_poll = NULL; -static AvahiClient *client = NULL; -static int n_all_for_now = 0, n_cache_exhausted = 0, n_resolving = 0; -static AvahiStringList *browsed_types = NULL; -static ServiceInfo *services = NULL; -static int n_columns = 80; -static int browsing = 0; - -static void check_terminate(Config *c) { - - assert(n_all_for_now >= 0); - assert(n_cache_exhausted >= 0); - assert(n_resolving >= 0); - - if (n_all_for_now <= 0 && n_resolving <= 0) { - - if (c->verbose && !c->parsable) { - printf(_(": All for now\n")); - n_all_for_now++; /* Make sure that this event is not repeated */ - } - - if (c->terminate_on_all_for_now) - avahi_simple_poll_quit(simple_poll); - } - - if (n_cache_exhausted <= 0 && n_resolving <= 0) { - - if (c->verbose && !c->parsable) { - printf(_(": Cache exhausted\n")); - n_cache_exhausted++; /* Make sure that this event is not repeated */ - } - - if (c->terminate_on_cache_exhausted) - avahi_simple_poll_quit(simple_poll); - } -} - -static ServiceInfo *find_service(AvahiIfIndex interface, AvahiProtocol protocol, const char *name, const char *type, const char *domain) { - ServiceInfo *i; - - for (i = services; i; i = i->info_next) - if (i->interface == interface && - i->protocol == protocol && - strcasecmp(i->name, name) == 0 && - avahi_domain_equal(i->type, type) && - avahi_domain_equal(i->domain, domain)) - - return i; - - return NULL; -} - -static char *make_printable(const char *from, char *to) { - const char *f; - char *t; - - for (f = from, t = to; *f; f++, t++) - *t = isprint(*f) ? *f : '_'; - - *t = 0; - - return to; -} - -static void print_service_line(Config *config, char c, AvahiIfIndex interface, AvahiProtocol protocol, const char *name, const char *type, const char *domain, int nl) { - char ifname[IF_NAMESIZE]; - -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - if (!config->no_db_lookup) - type = stdb_lookup(type); -#endif - - if (config->parsable) { - char sn[AVAHI_DOMAIN_NAME_MAX], *e = sn; - size_t l = sizeof(sn); - - printf("%c;%s;%s;%s;%s;%s%s", - c, - interface != AVAHI_IF_UNSPEC ? if_indextoname(interface, ifname) : _("n/a"), - protocol != AVAHI_PROTO_UNSPEC ? avahi_proto_to_string(protocol) : _("n/a"), - avahi_escape_label(name, strlen(name), &e, &l), type, domain, nl ? "\n" : ""); - - } else { - char label[AVAHI_LABEL_MAX]; - make_printable(name, label); - - printf("%c %6s %4s %-*s %-20s %s\n", - c, - interface != AVAHI_IF_UNSPEC ? if_indextoname(interface, ifname) : _("n/a"), - protocol != AVAHI_PROTO_UNSPEC ? avahi_proto_to_string(protocol) : _("n/a"), - n_columns-35, label, type, domain); - } - - fflush(stdout); -} - -static void service_resolver_callback( - AvahiServiceResolver *r, - AvahiIfIndex interface, - AvahiProtocol protocol, - AvahiResolverEvent event, - const char *name, - const char *type, - const char *domain, - const char *host_name, - const AvahiAddress *a, - uint16_t port, - AvahiStringList *txt, - AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, - void *userdata) { - - ServiceInfo *i = userdata; - - assert(r); - assert(i); - - switch (event) { - case AVAHI_RESOLVER_FOUND: { - char address[AVAHI_ADDRESS_STR_MAX], *t; - - avahi_address_snprint(address, sizeof(address), a); - - t = avahi_string_list_to_string(txt); - - print_service_line(i->config, '=', interface, protocol, name, type, domain, 0); - - if (i->config->parsable) - printf(";%s;%s;%u;%s\n", - host_name, - address, - port, - t); - else - printf(" hostname = [%s]\n" - " address = [%s]\n" - " port = [%u]\n" - " txt = [%s]\n", - host_name, - address, - port, - t); - - avahi_free(t); - - break; - } - - case AVAHI_RESOLVER_FAILURE: - - fprintf(stderr, _("Failed to resolve service '%s' of type '%s' in domain '%s': %s\n"), name, type, domain, avahi_strerror(avahi_client_errno(client))); - break; - } - - - avahi_service_resolver_free(i->resolver); - i->resolver = NULL; - - assert(n_resolving > 0); - n_resolving--; - check_terminate(i->config); - fflush(stdout); -} - -static ServiceInfo *add_service(Config *c, AvahiIfIndex interface, AvahiProtocol protocol, const char *name, const char *type, const char *domain) { - ServiceInfo *i; - - i = avahi_new(ServiceInfo, 1); - - if (c->resolve) { - if (!(i->resolver = avahi_service_resolver_new(client, interface, protocol, name, type, domain, AVAHI_PROTO_UNSPEC, 0, service_resolver_callback, i))) { - avahi_free(i); - fprintf(stderr, _("Failed to resolve service '%s' of type '%s' in domain '%s': %s\n"), name, type, domain, avahi_strerror(avahi_client_errno(client))); - return NULL; - } - - n_resolving++; - } else - i->resolver = NULL; - - i->interface = interface; - i->protocol = protocol; - i->name = avahi_strdup(name); - i->type = avahi_strdup(type); - i->domain = avahi_strdup(domain); - i->config = c; - - AVAHI_LLIST_PREPEND(ServiceInfo, info, services, i); - - return i; -} - -static void remove_service(Config *c, ServiceInfo *i) { - assert(c); - assert(i); - - AVAHI_LLIST_REMOVE(ServiceInfo, info, services, i); - - if (i->resolver) - avahi_service_resolver_free(i->resolver); - - avahi_free(i->name); - avahi_free(i->type); - avahi_free(i->domain); - avahi_free(i); -} - -static void service_browser_callback( - AvahiServiceBrowser *b, - AvahiIfIndex interface, - AvahiProtocol protocol, - AvahiBrowserEvent event, - const char *name, - const char *type, - const char *domain, - AvahiLookupResultFlags flags, - void *userdata) { - - Config *c = userdata; - - assert(b); - assert(c); - - switch (event) { - case AVAHI_BROWSER_NEW: { - if (c->ignore_local && (flags & AVAHI_LOOKUP_RESULT_LOCAL)) - break; - - if (find_service(interface, protocol, name, type, domain)) - return; - - add_service(c, interface, protocol, name, type, domain); - - print_service_line(c, '+', interface, protocol, name, type, domain, 1); - break; - - } - - case AVAHI_BROWSER_REMOVE: { - ServiceInfo *info; - - if (!(info = find_service(interface, protocol, name, type, domain))) - return; - - remove_service(c, info); - - print_service_line(c, '-', interface, protocol, name, type, domain, 1); - break; - } - - case AVAHI_BROWSER_FAILURE: - fprintf(stderr, _("service_browser failed: %s\n"), avahi_strerror(avahi_client_errno(client))); - avahi_simple_poll_quit(simple_poll); - break; - - case AVAHI_BROWSER_CACHE_EXHAUSTED: - n_cache_exhausted --; - check_terminate(c); - break; - - case AVAHI_BROWSER_ALL_FOR_NOW: - n_all_for_now --; - check_terminate(c); - break; - } -} - -static void browse_service_type(Config *c, const char *stype, const char *domain) { - AvahiServiceBrowser *b; - AvahiStringList *i; - - assert(c); - assert(client); - assert(stype); - - for (i = browsed_types; i; i = i->next) - if (avahi_domain_equal(stype, (char*) i->text)) - return; - - if (!(b = avahi_service_browser_new( - client, - AVAHI_IF_UNSPEC, - AVAHI_PROTO_UNSPEC, - stype, - domain, - 0, - service_browser_callback, - c))) { - - fprintf(stderr, _("avahi_service_browser_new() failed: %s\n"), avahi_strerror(avahi_client_errno(client))); - avahi_simple_poll_quit(simple_poll); - } - - browsed_types = avahi_string_list_add(browsed_types, stype); - - n_all_for_now++; - n_cache_exhausted++; -} - -static void service_type_browser_callback( - AvahiServiceTypeBrowser *b, - AVAHI_GCC_UNUSED AvahiIfIndex interface, - AVAHI_GCC_UNUSED AvahiProtocol protocol, - AvahiBrowserEvent event, - const char *type, - const char *domain, - AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, - void *userdata) { - - Config *c = userdata; - - assert(b); - assert(c); - - switch (event) { - - case AVAHI_BROWSER_NEW: - browse_service_type(c, type, domain); - break; - - case AVAHI_BROWSER_REMOVE: - /* We're dirty and never remove the browser again */ - break; - - case AVAHI_BROWSER_FAILURE: - fprintf(stderr, _("service_type_browser failed: %s\n"), avahi_strerror(avahi_client_errno(client))); - avahi_simple_poll_quit(simple_poll); - break; - - case AVAHI_BROWSER_CACHE_EXHAUSTED: - n_cache_exhausted --; - check_terminate(c); - break; - - case AVAHI_BROWSER_ALL_FOR_NOW: - n_all_for_now --; - check_terminate(c); - break; - } -} - -static void browse_all(Config *c) { - AvahiServiceTypeBrowser *b; - - assert(c); - - if (!(b = avahi_service_type_browser_new( - client, - AVAHI_IF_UNSPEC, - AVAHI_PROTO_UNSPEC, - c->domain, - 0, - service_type_browser_callback, - c))) { - - fprintf(stderr, _("avahi_service_type_browser_new() failed: %s\n"), avahi_strerror(avahi_client_errno(client))); - avahi_simple_poll_quit(simple_poll); - } - - n_cache_exhausted++; - n_all_for_now++; -} - -static void domain_browser_callback( - AvahiDomainBrowser *b, - AVAHI_GCC_UNUSED AvahiIfIndex interface, - AVAHI_GCC_UNUSED AvahiProtocol protocol, - AvahiBrowserEvent event, - const char *domain, - AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, - void *userdata) { - - Config *c = userdata; - - assert(b); - assert(c); - - switch (event) { - - case AVAHI_BROWSER_NEW: - case AVAHI_BROWSER_REMOVE: { - char ifname[IF_NAMESIZE]; - - if (c->parsable) - printf("%c;%s;%s;%s\n", - event == AVAHI_BROWSER_NEW ? '+' : '-', - interface != AVAHI_IF_UNSPEC ? if_indextoname(interface, ifname) : "", - protocol != AVAHI_PROTO_UNSPEC ? avahi_proto_to_string(protocol) : "", - domain); - else - printf("%c %4s %4s %s\n", - event == AVAHI_BROWSER_NEW ? '+' : '-', - interface != AVAHI_IF_UNSPEC ? if_indextoname(interface, ifname) : "n/a", - protocol != AVAHI_PROTO_UNSPEC ? avahi_proto_to_string(protocol) : "n/a", - domain); - break; - } - - case AVAHI_BROWSER_FAILURE: - fprintf(stderr, ("domain_browser failed: %s\n"), avahi_strerror(avahi_client_errno(client))); - avahi_simple_poll_quit(simple_poll); - break; - - case AVAHI_BROWSER_CACHE_EXHAUSTED: - n_cache_exhausted --; - check_terminate(c); - break; - - case AVAHI_BROWSER_ALL_FOR_NOW: - n_all_for_now --; - check_terminate(c); - break; - } -} - -static void browse_domains(Config *c) { - AvahiDomainBrowser *b; - - assert(c); - - if (!(b = avahi_domain_browser_new( - client, - AVAHI_IF_UNSPEC, - AVAHI_PROTO_UNSPEC, - c->domain, - AVAHI_DOMAIN_BROWSER_BROWSE, - 0, - domain_browser_callback, - c))) { - - fprintf(stderr, _("avahi_domain_browser_new() failed: %s\n"), avahi_strerror(avahi_client_errno(client))); - avahi_simple_poll_quit(simple_poll); - } - - n_cache_exhausted++; - n_all_for_now++; -} - -static int start(Config *config) { - - assert(!browsing); - - if (config->verbose && !config->parsable) { - 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))); - return -1; - } - - if (!(hn = avahi_client_get_host_name_fqdn(client))) { - fprintf(stderr, _("Failed to query host name: %s\n"), avahi_strerror(avahi_client_errno(client))); - return -1; - } - - fprintf(stderr, _("Server version: %s; Host name: %s\n"), version, hn); - - if (config->command == COMMAND_BROWSE_DOMAINS) { - /* Translators: This is a column heading with abbreviations for - * Event (+/-), Network Interface, Protocol (IPv4/v6), Domain */ - fprintf(stderr, _("E Ifce Prot Domain\n")); - } else { - /* Translators: This is a column heading with abbreviations for - * Event (+/-), Network Interface, Protocol (IPv4/v6), Domain */ - fprintf(stderr, _("E Ifce Prot %-*s %-20s Domain\n"), n_columns-35, _("Name"), _("Type")); - } - } - - if (config->command == COMMAND_BROWSE_SERVICES) - browse_service_type(config, config->stype, config->domain); - else if (config->command == COMMAND_BROWSE_ALL_SERVICES) - browse_all(config); - else { - assert(config->command == COMMAND_BROWSE_DOMAINS); - browse_domains(config); - } - - browsing = 1; - return 0; -} - -static void client_callback(AvahiClient *c, AvahiClientState state, AVAHI_GCC_UNUSED void * userdata) { - Config *config = userdata; - - /* This function might be called when avahi_client_new() has not - * returned yet.*/ - 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; - - avahi_string_list_free(browsed_types); - browsed_types = NULL; - - while (services) - remove_service(config, services); - - browsing = 0; - - 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_REGISTERING: - case AVAHI_CLIENT_S_RUNNING: - case AVAHI_CLIENT_S_COLLISION: - - if (!browsing) - if (start(config) < 0) - avahi_simple_poll_quit(simple_poll); - - break; - - case AVAHI_CLIENT_CONNECTING: - - if (config->verbose && !config->parsable) - fprintf(stderr, _("Waiting for daemon ...\n")); - - break; - } -} - -static void help(FILE *f, const char *argv0) { - if (strstr(argv0, "domain")) - fprintf(f, "%s [options] \n\n", argv0); - else - fprintf(f, - "%s [options] \n" - "%s [options] -a\n" - "%s [options] -D\n" -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - "%s [options] -b\n" -#endif - "\n", -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - argv0, -#endif - argv0, argv0, argv0); - - fprintf(f, "%s%s", - _(" -h --help Show this help\n" - " -V --version Show version\n" - " -D --browse-domains Browse for browsing domains instead of services\n" - " -a --all Show all services, regardless of the type\n" - " -d --domain=DOMAIN The domain to browse in\n" - " -v --verbose Enable verbose mode\n" - " -t --terminate Terminate after dumping a more or less complete list\n" - " -c --cache Terminate after dumping all entries from the cache\n" - " -l --ignore-local Ignore local services\n" - " -r --resolve Resolve services found\n" - " -f --no-fail Don't fail if the daemon is not available\n" - " -p --parsable Output in parsable format\n"), -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - _(" -k --no-db-lookup Don't lookup service types\n" - " -b --dump-db Dump service type database\n") -#else - "" -#endif - ); -} - -static int parse_command_line(Config *c, const char *argv0, int argc, char *argv[]) { - int o; - - static const struct option long_options[] = { - { "help", no_argument, NULL, 'h' }, - { "version", no_argument, NULL, 'V' }, - { "browse-domains", no_argument, NULL, 'D' }, - { "domain", required_argument, NULL, 'd' }, - { "all", no_argument, NULL, 'a' }, - { "verbose", no_argument, NULL, 'v' }, - { "terminate", no_argument, NULL, 't' }, - { "cache", no_argument, NULL, 'c' }, - { "ignore-local", no_argument, NULL, 'l' }, - { "resolve", no_argument, NULL, 'r' }, - { "no-fail", no_argument, NULL, 'f' }, - { "parsable", no_argument, NULL, 'p' }, -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - { "no-db-lookup", no_argument, NULL, 'k' }, - { "dump-db", no_argument, NULL, 'b' }, -#endif - { NULL, 0, NULL, 0 } - }; - - assert(c); - - c->command = strstr(argv0, "domain") ? COMMAND_BROWSE_DOMAINS : COMMAND_BROWSE_SERVICES; - c->verbose = - c->terminate_on_cache_exhausted = - c->terminate_on_all_for_now = - c->ignore_local = - c->resolve = - c->no_fail = - c->parsable = 0; - c->domain = c->stype = NULL; - -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - c->no_db_lookup = 0; -#endif - - while ((o = getopt_long(argc, argv, "hVd:avtclrDfp" -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - "kb" -#endif - , long_options, NULL)) >= 0) { - - switch(o) { - case 'h': - c->command = COMMAND_HELP; - break; - case 'V': - c->command = COMMAND_VERSION; - break; - case 'a': - c->command = COMMAND_BROWSE_ALL_SERVICES; - break; - case 'D': - c->command = COMMAND_BROWSE_DOMAINS; - break; - case 'd': - avahi_free(c->domain); - c->domain = avahi_strdup(optarg); - break; - case 'v': - c->verbose = 1; - break; - case 't': - c->terminate_on_all_for_now = 1; - break; - case 'c': - c->terminate_on_cache_exhausted = 1; - break; - case 'l': - c->ignore_local = 1; - break; - case 'r': - c->resolve = 1; - break; - case 'f': - c->no_fail = 1; - break; - case 'p': - c->parsable = 1; - break; -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - case 'k': - c->no_db_lookup = 1; - break; - case 'b': - c->command = COMMAND_DUMP_STDB; - break; -#endif - default: - return -1; - } - } - - if (c->command == COMMAND_BROWSE_SERVICES) { - if (optind >= argc) { - fprintf(stderr, _("Too few arguments\n")); - return -1; - } - - c->stype = avahi_strdup(argv[optind]); - optind++; - } - - if (optind < argc) { - fprintf(stderr, _("Too many arguments\n")); - return -1; - } - - return 0; -} - -int main(int argc, char *argv[]) { - int ret = 1, error; - Config config; - const char *argv0; - char *ec; - - avahi_init_i18n(); - setlocale(LC_ALL, ""); - - if ((argv0 = strrchr(argv[0], '/'))) - argv0++; - else - argv0 = argv[0]; - - if ((ec = getenv("COLUMNS"))) - n_columns = atoi(ec); - - if (n_columns < 40) - n_columns = 40; - - if (parse_command_line(&config, argv0, argc, argv) < 0) - goto fail; - - switch (config.command) { - case COMMAND_HELP: - help(stdout, argv0); - ret = 0; - break; - - case COMMAND_VERSION: - printf("%s "PACKAGE_VERSION"\n", argv0); - ret = 0; - break; - - case COMMAND_BROWSE_SERVICES: - case COMMAND_BROWSE_ALL_SERVICES: - case COMMAND_BROWSE_DOMAINS: - - 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; - } - - avahi_simple_poll_loop(simple_poll); - ret = 0; - break; - -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - case COMMAND_DUMP_STDB: { - char *t; - stdb_setent(); - - while ((t = stdb_getent())) { - if (config.no_db_lookup) - printf("%s\n", t); - else - printf("%s\n", stdb_lookup(t)); - } - - ret = 0; - break; - } -#endif - } - - -fail: - - while (services) - remove_service(&config, services); - - if (client) - avahi_client_free(client); - - sigint_uninstall(); - - if (simple_poll) - avahi_simple_poll_free(simple_poll); - - avahi_free(config.domain); - avahi_free(config.stype); - - avahi_string_list_free(browsed_types); - -#if defined(HAVE_GDBM) || defined(HAVE_DBM) - stdb_shutdown(); -#endif - - return ret; -}