jehanne/sys/src/lib/posix/others.c

84 lines
1.8 KiB
C

/*
* This file is part of Jehanne.
*
* Copyright (C) 2017 Giacomo Tesio <giacomo@tesio.it>
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, version 3 of the License.
*
* Jehanne is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Jehanne. If not, see <http://www.gnu.org/licenses/>.
*/
#include <u.h>
#include <lib9.h>
#include <posix.h>
#include "internal.h"
int
POSIX_isatty(int *errnop, int fd)
{
char buf[64];
int l;
if(fd < 0){
*errnop = __libposix_get_errno(PosixEBADF);
return 0;
}
if(sys_fd2path(fd, buf, sizeof(buf)) < 0){
*errnop = __libposix_get_errno(PosixENOTTY);
return 0;
}
l = strlen(buf);
if(l >= 9 && strcmp(buf+l-9, "/dev/cons") == 0)
return 1;
*errnop = __libposix_get_errno(PosixENOTTY);
return 0;
}
unsigned int
POSIX_sleep(unsigned int seconds)
{
sleep(seconds*1000);
return 0;
}
unsigned int
POSIX_usleep(int *errnop, unsigned int usec)
{
if(usec >= 1000000){
*errnop = __libposix_get_errno(PosixEINVAL);
return -1;
}
unsigned int ms = usec == 0 ? 0 : (usec+1000)/1000;
sleep(ms);
return 0;
}
int
POSIX_pause(int *errnop)
{
rendezvous((void*)~0, 1);
*errnop = __libposix_get_errno(PosixEINTR);
return -1;
}
clock_t
POSIX_times(int *errnop, void *buf)
{
*errnop = __libposix_get_errno(PosixEINVAL);
return -1;
}
int
POSIX_gettimeofday(int *errnop, void *timeval, void *timezone)
{
*errnop = __libposix_get_errno(PosixEINVAL);
return -1;
}