On 03/07/11 21:10, Michael Roth wrote:
> Signed-off-by: Michael Roth <mdr...@linux.vnet.ibm.com>
> ---
> qemu-va.c | 247
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 247 insertions(+), 0 deletions(-)
> create mode 100644 qemu-va.c
>
> diff --git a/qemu-va.c b/qemu-va.c
> new file mode 100644
> index 0000000..a9ff56f
> --- /dev/null
> +++ b/qemu-va.c
> @@ -0,0 +1,247 @@
[snip]
> +static void become_daemon(void)
> +{
> + pid_t pid, sid;
> + int pidfd;
> + char *pidstr;
> +
> + pid = fork();
> + if (pid < 0)
> + exit(EXIT_FAILURE);
> + if (pid > 0) {
> + exit(EXIT_SUCCESS);
> + }
> +
> + pidfd = open(VA_PIDFILE, O_CREAT|O_RDWR, S_IRUSR|S_IWUSR);
> + if (!pidfd || lockf(pidfd, F_TLOCK, 0))
> + errx(EXIT_FAILURE, "Cannot lock pid file");
> +
> + if (ftruncate(pidfd, 0) || lseek(pidfd, 0, SEEK_SET))
> + errx(EXIT_FAILURE, "Cannot truncate pid file");
> + if (asprintf(&pidstr, "%d", getpid()) == -1)
> + errx(EXIT_FAILURE, "Cannot allocate memory");
> + if (write(pidfd, pidstr, strlen(pidstr)) != strlen(pidstr))
> + errx(EXIT_FAILURE, "Failed to write pid file");
> + free(pidstr);
Coding style - this needs to be fixed.
> + umask(0);
> + sid = setsid();
> + if (sid < 0)
> + goto fail;
> + if ((chdir("/")) < 0)
> + goto fail;
and again
Cheers,
Jes
