int
do_daemonize(void)
{
pid_t child;
unsigned int i;
if ((child = fork()) == (pid_t) -1) {
logger_error(NULL, "Unable to fork() in order to daemonize");
return -1;
} else if (child != (pid_t) 0) {
_exit(0);
}
if (setsid() == (pid_t) -1) {
logger_error(NULL, "Unable to setsid()");
}
i = open_max();
do {
if (isatty((int) i)) {
(void) close((int) i);
}
i--;
} while (i > 2U);
if (closedesc_all(1) != 0) {
logger_error(NULL, _PATH_DEVNULL " duplication");
return -1;
}
return 0;
}
static void dodaemonize(void)
{
pid_t child;
if (daemonize != 0) {
if ((child = fork()) == (pid_t) -1) {
perror("Daemonization failed - fork");
return;
} else if (child != (pid_t) 0) {
_exit(EXIT_SUCCESS);
} else if (setsid() == (pid_t) -1) {
perror("Daemonization failed : setsid");
}
(void) chdir("/");
#ifdef HAVE_CLOSEFROM
(void) closefrom(3);
#endif
(void) closedesc_all(0);
}
}
static int run(const char * const who, const char * const file,
const int upload_pipe_fd)
{
struct stat st;
pid_t pid;
if (script == NULL || *script == 0 ||
file == NULL || *file == 0 ||
lstat(file, &st) < 0 ||
!S_ISREG(st.st_mode)) {
return -1;
}
pid = fork();
if (pid == (pid_t) 0) {
/* Yes, there's already the cloexec flag on this fd,
* but it's really important to close it. Be paranoid.
*/
if (close(upload_pipe_fd) < 0 || closedesc_all(1) < 0) {
_exit(EXIT_FAILURE);
}
fillenv(who, &st);
execl(script, script, file, (char *) NULL);
_exit(EXIT_FAILURE);
} else if (pid != (pid_t) -1) {
#ifdef HAVE_WAITPID
(void) waitpid(pid, NULL, 0);
#else
{
pid_t foundpid;
while ((foundpid = wait3(NULL, 0, NULL)) != (pid_t) -1 &&
foundpid != pid);
}
#endif
}
return 0;
}
