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#include <ccan/daemonize/daemonize.h>
#include <ccan/daemonize/daemonize.c>
#include <ccan/tap/tap.h>
#include <stdlib.h>
#include <unistd.h>
#include <err.h>
#include <errno.h>
#include <string.h>
struct child_data {
pid_t pid;
pid_t ppid;
bool in_root_dir;
int read_from_stdin, write_to_stdout, write_to_stderr;
};
int main(int argc, char *argv[])
{
int fds[2];
struct child_data daemonized;
pid_t pid;
plan_tests(5);
if (pipe(fds) != 0)
err(1, "Failed pipe");
/* Since daemonize forks and parent exits, we need to fork
* that parent. */
pid = fork();
if (pid == -1)
err(1, "Failed fork");
if (pid == 0) {
char buffer[2];
pid = getpid();
daemonize();
/* Keep valgrind happy about uninitialized bytes. */
memset(&daemonized, 0, sizeof(daemonized));
daemonized.pid = getpid();
daemonized.in_root_dir = (getcwd(buffer, 2) != NULL);
daemonized.read_from_stdin
= read(STDIN_FILENO, buffer, 1) == -1 ? errno : 0;
daemonized.write_to_stdout
= write(STDOUT_FILENO, buffer, 1) == -1 ? errno : 0;
if (write(STDERR_FILENO, buffer, 1) != 1) {
daemonized.write_to_stderr = errno;
if (daemonized.write_to_stderr == 0)
daemonized.write_to_stderr = -1;
} else
daemonized.write_to_stderr = 0;
/* Make sure parent exits. */
while (getppid() == pid)
sleep(1);
daemonized.ppid = getppid();
if (write(fds[1], &daemonized, sizeof(daemonized))
!= sizeof(daemonized))
exit(1);
exit(0);
}
if (read(fds[0], &daemonized, sizeof(daemonized)) != sizeof(daemonized))
err(1, "Failed read");
ok1(daemonized.pid != pid);
#if 0 /* Believe it or not, this fails under Ubuntu 13.10 (Upstart) */
ok1(daemonized.ppid == 1);
#endif
ok1(daemonized.in_root_dir);
ok1(daemonized.read_from_stdin == EBADF);
ok1(daemonized.write_to_stdout == EBADF);
ok1(daemonized.write_to_stderr == 0);
return exit_status();
}
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