Subversion Repositories planix.SVN

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <stdio.h>
#include "sys9.h"
#include "lib.h"

pid_t
getpgrp(void)
{
        int n, f, pid;
        char pgrpbuf[15], fname[30];

        pid = getpid();
        sprintf(fname, "/proc/%d/noteid", pid);
        f = open(fname, 0);
        n = read(f, pgrpbuf, sizeof pgrpbuf);
        if(n < 0)
                _syserrno();
        else
                n = atoi(pgrpbuf);
        close(f);
        return n;
}