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#include <fcntl.h>
#include <unistd.h>
int daemon(int nochdir, int noclose)
{
int fd;
switch(fork()) {
case 0: break;
case -1: return -1;
default: _exit(0);
}
if (setsid() < 0) return -1;
switch(fork()) {
case 0: break;
case -1: return -1;
default: _exit(0);
}
if (!nochdir) chdir("/");
if (!noclose && (fd = open("/dev/null", O_RDWR)) >= 0) {
dup2(fd, 0);
dup2(fd, 1);
dup2(fd, 2);
if (fd > 2) close(fd);
}
return 0;
}
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