diff options
Diffstat (limited to 'examples/testd.c')
| -rw-r--r-- | examples/testd.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/examples/testd.c b/examples/testd.c deleted file mode 100644 index 9154f7b..0000000 --- a/examples/testd.c +++ /dev/null @@ -1,194 +0,0 @@ -/*** - This file is part of libdaemon. - - Copyright 2003-2008 Lennart Poettering - - 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 - AUTHORS OR COPYRIGHT HOLDERS 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. - -***/ - -#include <signal.h> -#include <errno.h> -#include <string.h> -#include <sys/types.h> -#include <sys/time.h> -#include <sys/unistd.h> -#include <sys/select.h> - -#include <libdaemon/dfork.h> -#include <libdaemon/dsignal.h> -#include <libdaemon/dlog.h> -#include <libdaemon/dpid.h> -#include <libdaemon/dexec.h> - -int main(int argc, char *argv[]) { - pid_t pid; - - /* Reset signal handlers */ - if (daemon_reset_sigs(-1) < 0) { - daemon_log(LOG_ERR, "Failed to reset all signal handlers: %s", strerror(errno)); - return 1; - } - - /* Unblock signals */ - if (daemon_unblock_sigs(-1) < 0) { - daemon_log(LOG_ERR, "Failed to unblock all signals: %s", strerror(errno)); - return 1; - } - - /* Set indetification string for the daemon for both syslog and PID file */ - daemon_pid_file_ident = daemon_log_ident = daemon_ident_from_argv0(argv[0]); - - /* Check if we are called with -k parameter */ - if (argc >= 2 && !strcmp(argv[1], "-k")) { - int ret; - - /* Kill daemon with SIGTERM */ - - /* Check if the new function daemon_pid_file_kill_wait() is available, if it is, use it. */ - if ((ret = daemon_pid_file_kill_wait(SIGTERM, 5)) < 0) - daemon_log(LOG_WARNING, "Failed to kill daemon: %s", strerror(errno)); - - return ret < 0 ? 1 : 0; - } - - /* Check that the daemon is not rung twice a the same time */ - if ((pid = daemon_pid_file_is_running()) >= 0) { - daemon_log(LOG_ERR, "Daemon already running on PID file %u", pid); - return 1; - } - - /* Prepare for return value passing from the initialization procedure of the daemon process */ - if (daemon_retval_init() < 0) { - daemon_log(LOG_ERR, "Failed to create pipe."); - return 1; - } - - /* Do the fork */ - if ((pid = daemon_fork()) < 0) { - - /* Exit on error */ - daemon_retval_done(); - return 1; - - } else if (pid) { /* The parent */ - int ret; - - /* Wait for 20 seconds for the return value passed from the daemon process */ - if ((ret = daemon_retval_wait(20)) < 0) { - daemon_log(LOG_ERR, "Could not recieve return value from daemon process: %s", strerror(errno)); - return 255; - } - - daemon_log(ret != 0 ? LOG_ERR : LOG_INFO, "Daemon returned %i as return value.", ret); - return ret; - - } else { /* The daemon */ - int fd, quit = 0; - fd_set fds; - - /* Close FDs */ - if (daemon_close_all(-1) < 0) { - daemon_log(LOG_ERR, "Failed to close all file descriptors: %s", strerror(errno)); - - /* Send the error condition to the parent process */ - daemon_retval_send(1); - goto finish; - } - - /* Create the PID file */ - if (daemon_pid_file_create() < 0) { - daemon_log(LOG_ERR, "Could not create PID file (%s).", strerror(errno)); - daemon_retval_send(2); - goto finish; - } - - /* Initialize signal handling */ - if (daemon_signal_init(SIGINT, SIGTERM, SIGQUIT, SIGHUP, 0) < 0) { - daemon_log(LOG_ERR, "Could not register signal handlers (%s).", strerror(errno)); - daemon_retval_send(3); - goto finish; - } - - /*... do some further init work here */ - - - /* Send OK to parent process */ - daemon_retval_send(0); - - daemon_log(LOG_INFO, "Sucessfully started"); - - /* Prepare for select() on the signal fd */ - FD_ZERO(&fds); - fd = daemon_signal_fd(); - FD_SET(fd, &fds); - - while (!quit) { - fd_set fds2 = fds; - - /* Wait for an incoming signal */ - if (select(FD_SETSIZE, &fds2, 0, 0, 0) < 0) { - - /* If we've been interrupted by an incoming signal, continue */ - if (errno == EINTR) - continue; - - daemon_log(LOG_ERR, "select(): %s", strerror(errno)); - break; - } - - /* Check if a signal has been recieved */ - if (FD_ISSET(fd, &fds2)) { - int sig; - - /* Get signal */ - if ((sig = daemon_signal_next()) <= 0) { - daemon_log(LOG_ERR, "daemon_signal_next() failed: %s", strerror(errno)); - break; - } - - /* Dispatch signal */ - switch (sig) { - - case SIGINT: - case SIGQUIT: - case SIGTERM: - daemon_log(LOG_WARNING, "Got SIGINT, SIGQUIT or SIGTERM."); - quit = 1; - break; - - case SIGHUP: - daemon_log(LOG_INFO, "Got a HUP"); - daemon_exec("/", NULL, "/bin/ls", "ls", (char*) NULL); - break; - - } - } - } - - /* Do a cleanup */ -finish: - daemon_log(LOG_INFO, "Exiting..."); - daemon_retval_send(255); - daemon_signal_done(); - daemon_pid_file_remove(); - - return 0; - } -} |