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