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#include <asm/ioctls.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <bits/ensure.h>
#include <mlibc/all-sysdeps.hpp>
#include <mlibc/debug.hpp>
#include <stdio.h>
namespace mlibc {
int sys_isatty(int fd) {
struct winsize ws;
long ret = sys_ioctl(fd, TIOCGWINSZ, &ws, 0);
if(!ret) return 0;
return ENOTTY;
}
int sys_tcgetattr(int fd, struct termios *attr) {
if(int e = sys_isatty(fd))
return e;
int ret;
sys_ioctl(fd, TCGETS, attr, &ret);
if(ret)
return -ret;
return 0;
}
int sys_tcsetattr(int fd, int optional_action, const struct termios *attr) {
if(int e = sys_isatty(fd))
return e;
if(optional_action){
mlibc::infoLogger() << "mlibc warning: sys_tcsetattr ignores optional_action" << frg::endlog;
}
int ret;
sys_ioctl(fd, TCSETS, const_cast<struct termios*>(attr), &ret);
if(ret)
return -ret;
return 0;
}
int sys_ptsname(int fd, char *buffer, size_t length) {
int index;
if(int e = sys_ioctl(fd, TIOCGPTN, &index, NULL); e)
return e;
if((size_t)snprintf(buffer, length, "/dev/pts/%d", index) >= length) {
return ERANGE;
}
return 0;
}
}
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