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Add script.com and whois.com courtesy of FreeBSD

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Justine Tunney 2022-09-13 20:11:09 -07:00
parent 654ceaba7d
commit 1ad2f530f9
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GPG key ID: BE714B4575D6E328
33 changed files with 1735 additions and 265 deletions
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54
libc/calls/openpty.c
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@ -18,12 +18,23 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/ioctl.h"
#include "libc/calls/struct/termios.h"
#include "libc/calls/struct/winsize.h"
#include "libc/calls/termios.h"
#include "libc/fmt/itoa.h"
#include "libc/dce.h"
#include "libc/intrin/kprintf.h"
#include "libc/log/rop.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/pty.h"
#include "libc/sysv/consts/termios.h"
#include "libc/sysv/errfuns.h"
struct IoctlPtmGet {
int m;
int s;
char mname[16];
char sname[16];
};
/**
* Opens new pseudo teletypewriter.
@ -37,24 +48,29 @@
*/
int openpty(int *mfd, int *sfd, char *name, const struct termios *tio,
const struct winsize *wsz) {
int m, s, n;
char buf[20];
if ((m = open("/dev/ptmx", O_RDWR | O_NOCTTY)) != -1) {
n = 0;
if (!ioctl(m, TIOCSPTLCK, &n) && !ioctl(m, TIOCGPTN, &n)) {
if (!name) name = buf;
name[0] = '/', name[1] = 'd', name[2] = 'e', name[3] = 'v';
name[4] = '/', name[5] = 'p', name[6] = 't', name[7] = 's';
name[8] = '/', FormatInt32(name + 9, n);
if ((s = open(name, O_RDWR | O_NOCTTY)) != -1) {
if (tio) ioctl(s, TCSETS, tio);
if (wsz) ioctl(s, TIOCSWINSZ, wsz);
*mfd = m;
*sfd = s;
return 0;
}
}
int m, s, p;
const char *t;
struct IoctlPtmGet ptm;
RETURN_ON_ERROR((m = posix_openpt(O_RDWR | O_NOCTTY)));
if (!IsOpenbsd()) {
RETURN_ON_ERROR(grantpt(m));
RETURN_ON_ERROR(unlockpt(m));
if (!(t = ptsname(m))) goto OnError;
RETURN_ON_ERROR((s = open(t, O_RDWR)));
} else {
RETURN_ON_ERROR(ioctl(m, PTMGET, &ptm));
close(m);
m = ptm.m;
s = ptm.s;
t = ptm.sname;
}
*mfd = m;
*sfd = s;
if (name) strcpy(name, t);
if (tio) ioctl(s, TCSETSF, tio);
if (wsz) ioctl(s, TIOCSWINSZ, wsz);
return 0;
OnError:
if (m != -1) close(m);
return -1;
}