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/* Copyright (c) 2008-2012 Apple Inc.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
* HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name(s) of the above
* copyright holders shall not be used in advertising or otherwise to
* promote the sale, use or other dealings in this Software without
* prior written authorization.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <launch.h>
#include <asl.h>
#include <errno.h>
#include "launchd_fd.h"
extern aslclient aslc;
int
launchd_display_fd(void)
{
launch_data_t sockets_dict, checkin_request, checkin_response;
launch_data_t listening_fd_array, listening_fd;
/* Get launchd fd */
if ((checkin_request = launch_data_new_string(LAUNCH_KEY_CHECKIN)) ==
NULL) {
asl_log(
aslc, NULL, ASL_LEVEL_ERR,
"launch_data_new_string(\"" LAUNCH_KEY_CHECKIN
"\") Unable to create string.\n");
return ERROR_FD;
}
if ((checkin_response = launch_msg(checkin_request)) == NULL) {
asl_log(aslc, NULL, ASL_LEVEL_WARNING,
"launch_msg(\"" LAUNCH_KEY_CHECKIN "\") IPC failure: %s\n",
strerror(
errno));
return ERROR_FD;
}
if (LAUNCH_DATA_ERRNO == launch_data_get_type(checkin_response)) {
// ignore EACCES, which is common if we weren't started by launchd
if (launch_data_get_errno(checkin_response) != EACCES)
asl_log(aslc, NULL, ASL_LEVEL_ERR,
"launchd check-in failed: %s\n",
strerror(launch_data_get_errno(
checkin_response)));
return ERROR_FD;
}
sockets_dict = launch_data_dict_lookup(checkin_response,
LAUNCH_JOBKEY_SOCKETS);
if (NULL == sockets_dict) {
asl_log(aslc, NULL, ASL_LEVEL_ERR,
"launchd check-in: no sockets found to answer requests on!\n");
return ERROR_FD;
}
if (launch_data_dict_get_count(sockets_dict) > 1) {
asl_log(aslc, NULL, ASL_LEVEL_ERR,
"launchd check-in: some sockets will be ignored!\n");
return ERROR_FD;
}
listening_fd_array = launch_data_dict_lookup(sockets_dict,
BUNDLE_ID_PREFIX ":0");
if (NULL == listening_fd_array) {
listening_fd_array = launch_data_dict_lookup(sockets_dict, ":0");
if (NULL == listening_fd_array) {
asl_log(
aslc, NULL, ASL_LEVEL_ERR,
"launchd check-in: No known sockets found to answer requests on! \"%s:0\" and \":0\" failed.\n",
BUNDLE_ID_PREFIX);
return ERROR_FD;
}
}
if (launch_data_array_get_count(listening_fd_array) != 1) {
asl_log(aslc, NULL, ASL_LEVEL_ERR,
"launchd check-in: Expected 1 socket from launchd, got %u)\n",
(unsigned)launch_data_array_get_count(
listening_fd_array));
return ERROR_FD;
}
listening_fd = launch_data_array_get_index(listening_fd_array, 0);
return launch_data_get_fd(listening_fd);
}
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