+++ /dev/null
-/***
- 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 <assert.h>
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <string.h>
-
-#include <avahi-common/error.h>
-#include <avahi-common/dbus.h>
-#include <avahi-common/malloc.h>
-#include <avahi-core/log.h>
-#include <avahi-core/core.h>
-
-#ifdef ENABLE_CHROOT
-#include "chroot.h"
-#endif
-
-#include "main.h"
-#include "dbus-util.h"
-
-DBusHandlerResult avahi_dbus_respond_error(DBusConnection *c, DBusMessage *m, int error, const char *text) {
- DBusMessage *reply;
-
- assert(-error > -AVAHI_OK);
- assert(-error < -AVAHI_ERR_MAX);
-
- if (!text)
- text = avahi_strerror(error);
-
- reply = dbus_message_new_error(m, avahi_error_number_to_dbus(error), text);
-
- if (!reply) {
- avahi_log_error("Failed allocate message");
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
- }
-
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- avahi_log_debug(__FILE__": Responding error '%s' (%i)", text, error);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-DBusHandlerResult avahi_dbus_respond_string(DBusConnection *c, DBusMessage *m, const char *text) {
- DBusMessage *reply;
-
- reply = dbus_message_new_method_return(m);
-
- if (!reply) {
- avahi_log_error("Failed allocate message");
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
- }
-
- dbus_message_append_args(reply, DBUS_TYPE_STRING, &text, DBUS_TYPE_INVALID);
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-DBusHandlerResult avahi_dbus_respond_int32(DBusConnection *c, DBusMessage *m, int32_t i) {
- DBusMessage *reply;
-
- reply = dbus_message_new_method_return(m);
-
- if (!reply) {
- avahi_log_error("Failed allocate message");
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
- }
-
- dbus_message_append_args(reply, DBUS_TYPE_INT32, &i, DBUS_TYPE_INVALID);
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-DBusHandlerResult avahi_dbus_respond_uint32(DBusConnection *c, DBusMessage *m, uint32_t u) {
- DBusMessage *reply;
-
- reply = dbus_message_new_method_return(m);
-
- if (!reply) {
- avahi_log_error("Failed allocate message");
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
- }
-
- dbus_message_append_args(reply, DBUS_TYPE_UINT32, &u, DBUS_TYPE_INVALID);
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-DBusHandlerResult avahi_dbus_respond_boolean(DBusConnection *c, DBusMessage *m, int b) {
- DBusMessage *reply;
-
- reply = dbus_message_new_method_return(m);
-
- if (!reply) {
- avahi_log_error("Failed allocate message");
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
- }
-
- dbus_message_append_args(reply, DBUS_TYPE_BOOLEAN, &b, DBUS_TYPE_INVALID);
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-DBusHandlerResult avahi_dbus_respond_ok(DBusConnection *c, DBusMessage *m) {
- DBusMessage *reply;
-
- reply = dbus_message_new_method_return(m);
-
- if (!reply) {
- avahi_log_error("Failed allocate message");
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
- }
-
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-DBusHandlerResult avahi_dbus_respond_path(DBusConnection *c, DBusMessage *m, const char *path) {
- DBusMessage *reply;
-
- reply = dbus_message_new_method_return(m);
-
- if (!reply) {
- avahi_log_error("Failed allocate message");
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
- }
-
- dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID);
- dbus_connection_send(c, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-}
-
-void avahi_dbus_append_server_error(DBusMessage *reply) {
- const char *t;
-
- t = avahi_error_number_to_dbus(avahi_server_errno(avahi_server));
-
- dbus_message_append_args(
- reply,
- DBUS_TYPE_STRING, &t,
- DBUS_TYPE_INVALID);
-}
-
-const char *avahi_dbus_map_browse_signal_name(AvahiBrowserEvent e) {
- switch (e) {
- case AVAHI_BROWSER_NEW : return "ItemNew";
- case AVAHI_BROWSER_REMOVE : return "ItemRemove";
- case AVAHI_BROWSER_FAILURE : return "Failure";
- case AVAHI_BROWSER_CACHE_EXHAUSTED : return "CacheExhausted";
- case AVAHI_BROWSER_ALL_FOR_NOW : return "AllForNow";
- }
-
- abort();
-}
-
-const char *avahi_dbus_map_resolve_signal_name(AvahiResolverEvent e) {
- switch (e) {
- case AVAHI_RESOLVER_FOUND : return "Found";
- case AVAHI_RESOLVER_FAILURE : return "Failure";
- }
-
- abort();
-}
-
-static char *file_get_contents(const char *fname) {
- int fd = -1;
- struct stat st;
- ssize_t size;
- char *buf = NULL;
-
- assert(fname);
-
-#ifdef ENABLE_CHROOT
- fd = avahi_chroot_helper_get_fd(fname);
-#else
- fd = open(fname, O_RDONLY);
-#endif
-
- if (fd < 0) {
- avahi_log_error("Failed to open %s: %s", fname, strerror(errno));
- goto fail;
- }
-
- if (fstat(fd, &st) < 0) {
- avahi_log_error("stat(%s) failed: %s", fname, strerror(errno));
- goto fail;
- }
-
- if (!(S_ISREG(st.st_mode))) {
- avahi_log_error("Invalid file %s", fname);
- goto fail;
- }
-
- if (st.st_size > 1024*1024) { /** 1MB */
- avahi_log_error("File too large %s", fname);
- goto fail;
- }
-
- buf = avahi_new(char, st.st_size+1);
-
- if ((size = read(fd, buf, st.st_size)) < 0) {
- avahi_log_error("read() failed: %s\n", strerror(errno));
- goto fail;
- }
-
- buf[size] = 0;
-
- close(fd);
-
- return buf;
-
-fail:
- if (fd >= 0)
- close(fd);
-
- if (buf)
- avahi_free(buf);
-
- return NULL;
-
-}
-
-DBusHandlerResult avahi_dbus_handle_introspect(DBusConnection *c, DBusMessage *m, const char *fname) {
- char *contents, *path;
- DBusError error;
-
- assert(c);
- assert(m);
- assert(fname);
-
- dbus_error_init(&error);
-
- if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
- avahi_log_error("Error parsing Introspect message: %s", error.message);
- goto fail;
- }
-
- path = avahi_strdup_printf("%s/%s", AVAHI_DBUS_INTROSPECTION_DIR, fname);
- contents = file_get_contents(path);
- avahi_free(path);
-
- if (!contents) {
- avahi_log_error("Failed to load introspection data.");
- goto fail;
- }
-
- avahi_dbus_respond_string(c, m, contents);
- avahi_free(contents);
-
- return DBUS_HANDLER_RESULT_HANDLED;
-
-fail:
- if (dbus_error_is_set(&error))
- dbus_error_free(&error);
-
- return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
-
-}
-
-void avahi_dbus_append_string_list(DBusMessage *reply, AvahiStringList *txt) {
- AvahiStringList *p;
- DBusMessageIter iter, sub;
-
- assert(reply);
-
- dbus_message_iter_init_append(reply, &iter);
- dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "ay", &sub);
-
- for (p = txt; p; p = p->next) {
- DBusMessageIter sub2;
- const uint8_t *data = p->text;
-
- dbus_message_iter_open_container(&sub, DBUS_TYPE_ARRAY, "y", &sub2);
- dbus_message_iter_append_fixed_array(&sub2, DBUS_TYPE_BYTE, &data, p->size);
- dbus_message_iter_close_container(&sub, &sub2);
-
- }
- dbus_message_iter_close_container(&iter, &sub);
-}
-
-int avahi_dbus_read_rdata(DBusMessage *m, int idx, void **rdata, uint32_t *size) {
- DBusMessageIter iter, sub;
- int n, j;
- uint8_t *k;
-
- assert(m);
-
- dbus_message_iter_init(m, &iter);
-
- for (j = 0; j < idx; j++)
- dbus_message_iter_next(&iter);
-
- if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
- dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_BYTE)
- goto fail;
-
- dbus_message_iter_recurse(&iter, &sub);
- dbus_message_iter_get_fixed_array(&sub, &k, &n);
-
- *rdata = k;
- *size = n;
-
- return 0;
-
-fail:
- avahi_log_warn("Error parsing data");
-
- *rdata = NULL;
- size = 0;
- return -1;
-}
-
-int avahi_dbus_read_strlst(DBusMessage *m, int idx, AvahiStringList **l) {
- DBusMessageIter iter, sub;
- int j;
- AvahiStringList *strlst = NULL;
-
- assert(m);
- assert(l);
-
- dbus_message_iter_init(m, &iter);
-
- for (j = 0; j < idx; j++)
- dbus_message_iter_next(&iter);
-
- if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
- dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_ARRAY)
- goto fail;
-
- dbus_message_iter_recurse(&iter, &sub);
-
- for (;;) {
- int at, n;
- const uint8_t *k;
- DBusMessageIter sub2;
-
- if ((at = dbus_message_iter_get_arg_type(&sub)) == DBUS_TYPE_INVALID)
- break;
-
- assert(at == DBUS_TYPE_ARRAY);
-
- if (dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_BYTE)
- goto fail;
-
- dbus_message_iter_recurse(&sub, &sub2);
-
- k = (const uint8_t*) "";
- n = 0;
- dbus_message_iter_get_fixed_array(&sub2, &k, &n);
-
- if (!k)
- k = (const uint8_t*) "";
-
- strlst = avahi_string_list_add_arbitrary(strlst, k, n);
-
- dbus_message_iter_next(&sub);
- }
-
- *l = strlst;
-
- return 0;
-
-fail:
- avahi_log_warn("Error parsing TXT data");
-
- avahi_string_list_free(strlst);
- *l = NULL;
- return -1;
-}
-
-int avahi_dbus_is_our_own_service(Client *c, AvahiIfIndex interface, AvahiProtocol protocol, const char *name, const char *type, const char *domain) {
- AvahiSEntryGroup *g;
-
- if (avahi_server_get_group_of_service(avahi_server, interface, protocol, name, type, domain, &g) == AVAHI_OK) {
- EntryGroupInfo *egi;
-
- for (egi = c->entry_groups; egi; egi = egi->entry_groups_next)
- if (egi->entry_group == g)
- return 1;
- }
-
- return 0;
-}
-
-int avahi_dbus_append_rdata(DBusMessage *message, const void *rdata, size_t size) {
- DBusMessageIter iter, sub;
-
- assert(message);
-
- dbus_message_iter_init_append(message, &iter);
-
- if (!(dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE_AS_STRING, &sub)) ||
- !(dbus_message_iter_append_fixed_array(&sub, DBUS_TYPE_BYTE, &rdata, size)) ||
- !(dbus_message_iter_close_container(&iter, &sub)))
- return -1;
-
- return 0;
-}
projects / catta / blobdiff