Subversion Repositories planix.SVN

#include <errno.h>
#include "lib.h"
#include "sys9.h"

int
pipe(int fildes[2])
{
        Fdinfo *fi;
        int i;

        if(!fildes){
                errno = EFAULT;
                return -1;
        }
        if(_PIPE(fildes) < 0)
                _syserrno();
        else
        if(fildes[0] < 0 || fildes[0]>=OPEN_MAX ||
           fildes[1] < 0 || fildes[1]>=OPEN_MAX) {
                errno = EMFILE;
                return -1;
        }
        for(i = 0; i <=1; i++) {
                fi = &_fdinfo[fildes[i]];
                fi->flags = FD_ISOPEN;
                fi->oflags = O_RDWR;
                fi->uid = 0;    /* none */
                fi->gid = 0;
        }
        return 0;
}