From 04713ffbe7e9dbaa31e1f887152004fea2cbd7d8 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Tue, 15 Nov 2005 00:47:38 +0000 Subject: rename avahi-resolve-host-name to avahi-resolve git-svn-id: file:///home/lennart/svn/public/avahi/trunk@970 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe --- avahi-utils/avahi-resolve.c | 339 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 339 insertions(+) create mode 100644 avahi-utils/avahi-resolve.c (limited to 'avahi-utils/avahi-resolve.c') diff --git a/avahi-utils/avahi-resolve.c b/avahi-utils/avahi-resolve.c new file mode 100644 index 0000000..f634429 --- /dev/null +++ b/avahi-utils/avahi-resolve.c @@ -0,0 +1,339 @@ +/* $Id$ */ + +/*** + 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 "sigint.h" + +#ifdef HAVE_GDBM +#include "stdb.h" +#endif + +typedef enum { + COMMAND_HELP, + COMMAND_VERSION, + COMMAND_RESOLVE_HOST_NAME, + COMMAND_RESOLVE_ADDRESS +} Command; + +typedef struct Config { + int verbose; + Command command; + AvahiProtocol proto; +} Config; + +static AvahiSimplePoll *simple_poll = NULL; +static AvahiClient *client = NULL; + +static int n_resolving = 0; + +static void host_name_resolver_callback( + AvahiHostNameResolver *r, + AVAHI_GCC_UNUSED AvahiIfIndex interface, + AVAHI_GCC_UNUSED AvahiProtocol protocol, + AvahiResolverEvent event, + const char *name, + const AvahiAddress *a, + AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, + AVAHI_GCC_UNUSED void *userdata) { + + assert(r); + + switch (event) { + case AVAHI_RESOLVER_FOUND: { + char address[AVAHI_ADDRESS_STR_MAX]; + + avahi_address_snprint(address, sizeof(address), a); + + printf("%s\t%s\n", name, address); + + break; + } + + case AVAHI_RESOLVER_FAILURE: + + fprintf(stderr, "Failed to resolve host name '%s': %s\n", name, avahi_strerror(avahi_client_errno(client))); + break; + } + + + avahi_host_name_resolver_free(r); + + assert(n_resolving > 0); + n_resolving--; + + if (n_resolving <= 0) + avahi_simple_poll_quit(simple_poll); +} + +static void address_resolver_callback( + AvahiAddressResolver *r, + AVAHI_GCC_UNUSED AvahiIfIndex interface, + AVAHI_GCC_UNUSED AvahiProtocol protocol, + AvahiResolverEvent event, + const AvahiAddress *a, + const char *name, + AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, + AVAHI_GCC_UNUSED void *userdata) { + + char address[AVAHI_ADDRESS_STR_MAX]; + assert(r); + + avahi_address_snprint(address, sizeof(address), a); + + switch (event) { + case AVAHI_RESOLVER_FOUND: + + printf("%s\t%s\n", address, name); + break; + + case AVAHI_RESOLVER_FAILURE: + + fprintf(stderr, "Failed to resolve address '%s': %s\n", address, avahi_strerror(avahi_client_errno(client))); + break; + } + + + avahi_address_resolver_free(r); + + assert(n_resolving > 0); + n_resolving--; + + if (n_resolving <= 0) + avahi_simple_poll_quit(simple_poll); +} + +static void client_callback(AvahiClient *c, AvahiClientState state, AVAHI_GCC_UNUSED void * userdata) { + switch (state) { + case AVAHI_CLIENT_FAILURE: + 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: + case AVAHI_CLIENT_CONNECTING: + ; + } +} + +static void help(FILE *f, const char *argv0) { + fprintf(f, + "%s [options] %s \n" + "%s [options] %s
\n\n" + " -h --help Show this help\n" + " -V --version Show version\n" + " -n --name Resolve host name\n" + " -a --address Resolve address\n" + " -v --verbose Enable verbose mode\n" + " -6 Lookup IPv6 address\n" + " -4 Lookup IPv4 address\n" + , + argv0, strstr(argv0, "address") ? "-n" : "[-n]", + argv0, strstr(argv0, "address") ? "[-a]" : "-a"); +} + +static int parse_command_line(Config *c, int argc, char *argv[]) { + int o; + + static const struct option long_options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, 'V' }, + { "name", no_argument, NULL, 'n' }, + { "address", no_argument, NULL, 'a' }, + { "verbose", no_argument, NULL, 'v' }, + { NULL, 0, NULL, 0 } + }; + + assert(c); + + c->command = strstr(argv[0], "address") ? COMMAND_RESOLVE_ADDRESS : COMMAND_RESOLVE_HOST_NAME; + c->proto = AVAHI_PROTO_UNSPEC; + c->verbose = 0; + + opterr = 0; + while ((o = getopt_long(argc, argv, "hVnav46", long_options, NULL)) >= 0) { + + switch(o) { + case 'h': + c->command = COMMAND_HELP; + break; + case 'V': + c->command = COMMAND_VERSION; + break; + case 'n': + c->command = COMMAND_RESOLVE_HOST_NAME; + break; + case 'a': + c->command = COMMAND_RESOLVE_ADDRESS; + break; + case 'v': + c->verbose = 1; + break; + case '4': + c->proto = AVAHI_PROTO_INET; + break; + case '6': + c->proto = AVAHI_PROTO_INET6; + break; + default: + fprintf(stderr, "Invalid command line argument: %c\n", o); + return -1; + } + } + + if (c->command == COMMAND_RESOLVE_ADDRESS || c->command == COMMAND_RESOLVE_HOST_NAME) { + if (optind >= argc) { + fprintf(stderr, "Too few arguments\n"); + return -1; + } + } + + return 0; +} + +int main(int argc, char *argv[]) { + int ret = 1, error; + Config config; + const char *argv0; + + if ((argv0 = strrchr(argv[0], '/'))) + argv0++; + else + argv0 = argv[0]; + + if (parse_command_line(&config, 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_RESOLVE_HOST_NAME: + case COMMAND_RESOLVE_ADDRESS: { + int i; + + 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), 0, client_callback, NULL, &error))) { + fprintf(stderr, "Failed to create client object: %s\n", avahi_strerror(error)); + goto fail; + } + + if (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); + } + + n_resolving = 0; + + for (i = optind; i < argc; i++) { + + if (config.command == COMMAND_RESOLVE_HOST_NAME) { + + if (!(avahi_host_name_resolver_new(client, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, argv[i], config.proto, 0, host_name_resolver_callback, NULL))) { + fprintf(stderr, "Failed to create host name resolver: %s\n", avahi_strerror(avahi_client_errno(client))); + goto fail; + } + + } else { + AvahiAddress a; + + assert(config.command == COMMAND_RESOLVE_ADDRESS); + + if (!avahi_address_parse(argv[i], AVAHI_PROTO_UNSPEC, &a)) { + fprintf(stderr, "Failed to parse address '%s'\n", argv[i]); + goto fail; + } + + if (!(avahi_address_resolver_new(client, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, &a, 0, address_resolver_callback, NULL))) { + fprintf(stderr, "Failed to create address resolver: %s\n", avahi_strerror(avahi_client_errno(client))); + goto fail; + } + } + + n_resolving++; + } + + 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); + + return ret; +} -- cgit