daemoninit.c

来自「unix高级编程源代码.<<unix高级编程>>」· C语言 代码 · 共 25 行

#include	<sys/types.h>
#include	<sys/stat.h>
#include	<fcntl.h>
#include	"ourhdr.h"

int
daemon_init(void)
{
	pid_t	pid;

	if ( (pid = fork()) < 0)
		return(-1);
	else if (pid != 0)
		exit(0);	/* parent goes bye-bye */

	/* child continues */
	setsid();		/* become session leader */

	chdir("/");		/* change working directory */

	umask(0);		/* clear our file mode creation mask */

	return(0);
}