478 lines
11 KiB
C
478 lines
11 KiB
C
/*-
|
|
* Copyright (c) 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
* Copyright (c) 1993, 1994, 1995, 1996
|
|
* Keith Bostic. All rights reserved.
|
|
*
|
|
* See the LICENSE file for redistribution information.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#ifndef lint
|
|
static const char sccsid[] = "$Id: cl_term.c,v 10.35 2015/04/08 02:12:11 zy Exp $";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <bitstring.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#ifdef HAVE_TERM_H
|
|
#include <term.h>
|
|
#endif
|
|
#include <termios.h>
|
|
#include <unistd.h>
|
|
|
|
#include "../common/common.h"
|
|
#include "cl.h"
|
|
|
|
static int cl_pfmap(SCR *, seq_t, CHAR_T *, size_t, CHAR_T *, size_t);
|
|
|
|
/*
|
|
* XXX
|
|
* THIS REQUIRES THAT ALL SCREENS SHARE A TERMINAL TYPE.
|
|
*/
|
|
typedef struct _tklist {
|
|
char *ts; /* Key's termcap string. */
|
|
char *output; /* Corresponding vi command. */
|
|
char *name; /* Name. */
|
|
u_char value; /* Special value (for lookup). */
|
|
} TKLIST;
|
|
static TKLIST const c_tklist[] = { /* Command mappings. */
|
|
{"kil1", "O", "insert line"},
|
|
{"kdch1", "x", "delete character"},
|
|
{"kcud1", "j", "cursor down"},
|
|
{"kel", "D", "delete to eol"},
|
|
{"kind", "\004", "scroll down"}, /* ^D */
|
|
{"kll", "$", "go to eol"},
|
|
{"kend", "$", "go to eol"},
|
|
{"khome", "^", "go to sol"},
|
|
{"kich1", "i", "insert at cursor"},
|
|
{"kdl1", "dd", "delete line"},
|
|
{"kcub1", "h", "cursor left"},
|
|
{"knp", "\006", "page down"}, /* ^F */
|
|
{"kpp", "\002", "page up"}, /* ^B */
|
|
{"kri", "\025", "scroll up"}, /* ^U */
|
|
{"ked", "dG", "delete to end of screen"},
|
|
{"kcuf1", "l", "cursor right"},
|
|
{"kcuu1", "k", "cursor up"},
|
|
{NULL},
|
|
};
|
|
static TKLIST const m1_tklist[] = { /* Input mappings (lookup). */
|
|
{NULL},
|
|
};
|
|
static TKLIST const m2_tklist[] = { /* Input mappings (set or delete). */
|
|
{"kcud1", "\033ja", "cursor down"}, /* ^[ja */
|
|
{"kcub1", "\033ha", "cursor left"}, /* ^[ha */
|
|
{"kcuu1", "\033ka", "cursor up"}, /* ^[ka */
|
|
{"kcuf1", "\033la", "cursor right"}, /* ^[la */
|
|
{NULL},
|
|
};
|
|
|
|
/*
|
|
* cl_term_init --
|
|
* Initialize the special keys defined by the termcap/terminfo entry.
|
|
*
|
|
* PUBLIC: int cl_term_init(SCR *);
|
|
*/
|
|
int
|
|
cl_term_init(SCR *sp)
|
|
{
|
|
KEYLIST *kp;
|
|
SEQ *qp;
|
|
TKLIST const *tkp;
|
|
char *t;
|
|
CHAR_T name[60];
|
|
CHAR_T output[5];
|
|
CHAR_T ts[20];
|
|
CHAR_T *wp;
|
|
size_t wlen;
|
|
|
|
/* Command mappings. */
|
|
for (tkp = c_tklist; tkp->name != NULL; ++tkp) {
|
|
if ((t = tigetstr(tkp->ts)) == NULL || t == (char *)-1)
|
|
continue;
|
|
CHAR2INT(sp, tkp->name, strlen(tkp->name), wp, wlen);
|
|
MEMCPY(name, wp, wlen);
|
|
CHAR2INT(sp, t, strlen(t), wp, wlen);
|
|
MEMCPY(ts, wp, wlen);
|
|
CHAR2INT(sp, tkp->output, strlen(tkp->output), wp, wlen);
|
|
MEMCPY(output, wp, wlen);
|
|
if (seq_set(sp, name, strlen(tkp->name), ts, strlen(t),
|
|
output, strlen(tkp->output), SEQ_COMMAND,
|
|
SEQ_NOOVERWRITE | SEQ_SCREEN))
|
|
return (1);
|
|
}
|
|
|
|
/* Input mappings needing to be looked up. */
|
|
for (tkp = m1_tklist; tkp->name != NULL; ++tkp) {
|
|
if ((t = tigetstr(tkp->ts)) == NULL || t == (char *)-1)
|
|
continue;
|
|
for (kp = keylist;; ++kp)
|
|
if (kp->value == tkp->value)
|
|
break;
|
|
if (kp == NULL)
|
|
continue;
|
|
CHAR2INT(sp, tkp->name, strlen(tkp->name), wp, wlen);
|
|
MEMCPY(name, wp, wlen);
|
|
CHAR2INT(sp, t, strlen(t), wp, wlen);
|
|
MEMCPY(ts, wp, wlen);
|
|
output[0] = (UCHAR_T)kp->ch;
|
|
if (seq_set(sp, name, strlen(tkp->name), ts, strlen(t),
|
|
output, 1, SEQ_INPUT, SEQ_NOOVERWRITE | SEQ_SCREEN))
|
|
return (1);
|
|
}
|
|
|
|
/* Input mappings that are already set or are text deletions. */
|
|
for (tkp = m2_tklist; tkp->name != NULL; ++tkp) {
|
|
if ((t = tigetstr(tkp->ts)) == NULL || t == (char *)-1)
|
|
continue;
|
|
/*
|
|
* !!!
|
|
* Some terminals' <cursor_left> keys send single <backspace>
|
|
* characters. This is okay in command mapping, but not okay
|
|
* in input mapping. That combination is the only one we'll
|
|
* ever see, hopefully, so kluge it here for now.
|
|
*/
|
|
if (!strcmp(t, "\b"))
|
|
continue;
|
|
if (tkp->output == NULL) {
|
|
CHAR2INT(sp, tkp->name, strlen(tkp->name), wp, wlen);
|
|
MEMCPY(name, wp, wlen);
|
|
CHAR2INT(sp, t, strlen(t), wp, wlen);
|
|
MEMCPY(ts, wp, wlen);
|
|
if (seq_set(sp, name, strlen(tkp->name),
|
|
ts, strlen(t), NULL, 0,
|
|
SEQ_INPUT, SEQ_NOOVERWRITE | SEQ_SCREEN))
|
|
return (1);
|
|
} else {
|
|
CHAR2INT(sp, tkp->name, strlen(tkp->name), wp, wlen);
|
|
MEMCPY(name, wp, wlen);
|
|
CHAR2INT(sp, t, strlen(t), wp, wlen);
|
|
MEMCPY(ts, wp, wlen);
|
|
CHAR2INT(sp, tkp->output, strlen(tkp->output), wp, wlen);
|
|
MEMCPY(output, wp, wlen);
|
|
if (seq_set(sp, name, strlen(tkp->name),
|
|
ts, strlen(t), output, strlen(tkp->output),
|
|
SEQ_INPUT, SEQ_NOOVERWRITE | SEQ_SCREEN))
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Rework any function key mappings that were set before the
|
|
* screen was initialized.
|
|
*/
|
|
SLIST_FOREACH(qp, sp->gp->seqq, q)
|
|
if (F_ISSET(qp, SEQ_FUNCMAP))
|
|
(void)cl_pfmap(sp, qp->stype,
|
|
qp->input, qp->ilen, qp->output, qp->olen);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* cl_term_end --
|
|
* End the special keys defined by the termcap/terminfo entry.
|
|
*
|
|
* PUBLIC: int cl_term_end(GS *);
|
|
*/
|
|
int
|
|
cl_term_end(GS *gp)
|
|
{
|
|
SEQ *qp, *nqp, *pre_qp = NULL;
|
|
|
|
/* Delete screen specific mappings. */
|
|
SLIST_FOREACH_SAFE(qp, gp->seqq, q, nqp)
|
|
if (F_ISSET(qp, SEQ_SCREEN)) {
|
|
if (qp == SLIST_FIRST(gp->seqq))
|
|
SLIST_REMOVE_HEAD(gp->seqq, q);
|
|
else
|
|
SLIST_REMOVE_AFTER(pre_qp, q);
|
|
(void)seq_free(qp);
|
|
} else
|
|
pre_qp = qp;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* cl_fmap --
|
|
* Map a function key.
|
|
*
|
|
* PUBLIC: int cl_fmap(SCR *, seq_t, CHAR_T *, size_t, CHAR_T *, size_t);
|
|
*/
|
|
int
|
|
cl_fmap(SCR *sp, seq_t stype, CHAR_T *from, size_t flen, CHAR_T *to, size_t tlen)
|
|
{
|
|
/* Ignore until the screen is running, do the real work then. */
|
|
if (F_ISSET(sp, SC_VI) && !F_ISSET(sp, SC_SCR_VI))
|
|
return (0);
|
|
if (F_ISSET(sp, SC_EX) && !F_ISSET(sp, SC_SCR_EX))
|
|
return (0);
|
|
|
|
return (cl_pfmap(sp, stype, from, flen, to, tlen));
|
|
}
|
|
|
|
/*
|
|
* cl_pfmap --
|
|
* Map a function key (private version).
|
|
*/
|
|
static int
|
|
cl_pfmap(SCR *sp, seq_t stype, CHAR_T *from, size_t flen, CHAR_T *to, size_t tlen)
|
|
{
|
|
size_t nlen;
|
|
char *p;
|
|
char name[64];
|
|
CHAR_T keyname[64];
|
|
CHAR_T ts[20];
|
|
CHAR_T *wp;
|
|
size_t wlen;
|
|
|
|
(void)snprintf(name, sizeof(name), "kf%d",
|
|
(int)STRTOL(from+1,NULL,10));
|
|
if ((p = tigetstr(name)) == NULL ||
|
|
p == (char *)-1 || strlen(p) == 0)
|
|
p = NULL;
|
|
if (p == NULL) {
|
|
msgq_wstr(sp, M_ERR, from, "233|This terminal has no %s key");
|
|
return (1);
|
|
}
|
|
|
|
nlen = SPRINTF(keyname,
|
|
SIZE(keyname), L("function key %d"),
|
|
(int)STRTOL(from+1,NULL,10));
|
|
CHAR2INT(sp, p, strlen(p), wp, wlen);
|
|
MEMCPY(ts, wp, wlen);
|
|
return (seq_set(sp, keyname, nlen,
|
|
ts, strlen(p), to, tlen, stype, SEQ_NOOVERWRITE | SEQ_SCREEN));
|
|
}
|
|
|
|
/*
|
|
* cl_optchange --
|
|
* Curses screen specific "option changed" routine.
|
|
*
|
|
* PUBLIC: int cl_optchange(SCR *, int, char *, u_long *);
|
|
*/
|
|
int
|
|
cl_optchange(SCR *sp, int opt, char *str, u_long *valp)
|
|
{
|
|
CL_PRIVATE *clp;
|
|
|
|
clp = CLP(sp);
|
|
|
|
switch (opt) {
|
|
case O_TERM:
|
|
F_CLR(sp, SC_SCR_EX | SC_SCR_VI);
|
|
/* FALLTHROUGH */
|
|
case O_COLUMNS:
|
|
case O_LINES:
|
|
/*
|
|
* Changing the terminal type requires that we reinitialize
|
|
* curses, while resizing does not.
|
|
*/
|
|
F_SET(sp->gp, G_SRESTART);
|
|
break;
|
|
case O_MESG:
|
|
(void)cl_omesg(sp, clp, *valp);
|
|
break;
|
|
case O_WINDOWNAME:
|
|
if (*valp) {
|
|
F_SET(clp, CL_RENAME_OK);
|
|
|
|
/*
|
|
* If the screen is live, i.e. we're not reading the
|
|
* .exrc file, update the window.
|
|
*/
|
|
if (sp->frp != NULL && sp->frp->name != NULL)
|
|
(void)cl_rename(sp, sp->frp->name, 1);
|
|
} else {
|
|
F_CLR(clp, CL_RENAME_OK);
|
|
|
|
(void)cl_rename(sp, NULL, 0);
|
|
}
|
|
break;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* cl_omesg --
|
|
* Turn the tty write permission on or off.
|
|
*
|
|
* PUBLIC: int cl_omesg(SCR *, CL_PRIVATE *, int);
|
|
*/
|
|
int
|
|
cl_omesg(SCR *sp, CL_PRIVATE *clp, int on)
|
|
{
|
|
struct stat sb;
|
|
char *tty;
|
|
|
|
/* Find the tty, get the current permissions. */
|
|
if ((tty = ttyname(STDERR_FILENO)) == NULL) {
|
|
if (sp != NULL)
|
|
msgq(sp, M_SYSERR, "stderr");
|
|
return (1);
|
|
}
|
|
if (stat(tty, &sb) < 0) {
|
|
if (sp != NULL)
|
|
msgq(sp, M_SYSERR, "%s", tty);
|
|
return (1);
|
|
}
|
|
|
|
/* Save the original status if it's unknown. */
|
|
if (clp->tgw == TGW_UNKNOWN)
|
|
clp->tgw = sb.st_mode & S_IWGRP ? TGW_SET : TGW_UNSET;
|
|
|
|
/* Toggle the permissions. */
|
|
if (on) {
|
|
if (chmod(tty, sb.st_mode | S_IWGRP) < 0) {
|
|
if (sp != NULL)
|
|
msgq(sp, M_SYSERR,
|
|
"046|messages not turned on: %s", tty);
|
|
return (1);
|
|
}
|
|
} else
|
|
if (chmod(tty, sb.st_mode & ~S_IWGRP) < 0) {
|
|
if (sp != NULL)
|
|
msgq(sp, M_SYSERR,
|
|
"045|messages not turned off: %s", tty);
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* cl_ssize --
|
|
* Return the terminal size.
|
|
*
|
|
* PUBLIC: int cl_ssize(SCR *, int, size_t *, size_t *, int *);
|
|
*/
|
|
int
|
|
cl_ssize(SCR *sp, int sigwinch, size_t *rowp, size_t *colp, int *changedp)
|
|
{
|
|
struct winsize win;
|
|
size_t col, row;
|
|
int rval;
|
|
char *p;
|
|
|
|
/* Assume it's changed. */
|
|
if (changedp != NULL)
|
|
*changedp = 1;
|
|
|
|
/*
|
|
* !!!
|
|
* sp may be NULL.
|
|
*
|
|
* Get the screen rows and columns. If the values are wrong, it's
|
|
* not a big deal -- as soon as the user sets them explicitly the
|
|
* environment will be set and the screen package will use the new
|
|
* values.
|
|
*
|
|
* Try TIOCGWINSZ.
|
|
*/
|
|
row = col = 0;
|
|
if (ioctl(STDERR_FILENO, TIOCGWINSZ, &win) != -1) {
|
|
row = win.ws_row;
|
|
col = win.ws_col;
|
|
}
|
|
/* If here because of suspend or a signal, only trust TIOCGWINSZ. */
|
|
if (sigwinch) {
|
|
/*
|
|
* Somebody didn't get TIOCGWINSZ right, or has suspend
|
|
* without window resizing support. The user just lost,
|
|
* but there's nothing we can do.
|
|
*/
|
|
if (row == 0 || col == 0) {
|
|
if (changedp != NULL)
|
|
*changedp = 0;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* SunOS systems deliver SIGWINCH when windows are uncovered
|
|
* as well as when they change size. In addition, we call
|
|
* here when continuing after being suspended since the window
|
|
* may have changed size. Since we don't want to background
|
|
* all of the screens just because the window was uncovered,
|
|
* ignore the signal if there's no change.
|
|
*/
|
|
if (sp != NULL &&
|
|
row == O_VAL(sp, O_LINES) && col == O_VAL(sp, O_COLUMNS)) {
|
|
if (changedp != NULL)
|
|
*changedp = 0;
|
|
return (0);
|
|
}
|
|
|
|
if (rowp != NULL)
|
|
*rowp = row;
|
|
if (colp != NULL)
|
|
*colp = col;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* !!!
|
|
* If TIOCGWINSZ failed, or had entries of 0, try termcap. This
|
|
* routine is called before any termcap or terminal information
|
|
* has been set up. If there's no TERM environmental variable set,
|
|
* let it go, at least ex can run.
|
|
*/
|
|
if (row == 0 || col == 0) {
|
|
if ((p = getenv("TERM")) == NULL)
|
|
goto noterm;
|
|
if (row == 0)
|
|
if ((rval = tigetnum("lines")) < 0)
|
|
msgq(sp, M_SYSERR, "tigetnum: lines");
|
|
else
|
|
row = rval;
|
|
if (col == 0)
|
|
if ((rval = tigetnum("cols")) < 0)
|
|
msgq(sp, M_SYSERR, "tigetnum: cols");
|
|
else
|
|
col = rval;
|
|
}
|
|
|
|
/* If nothing else, well, it's probably a VT100. */
|
|
noterm: if (row == 0)
|
|
row = 24;
|
|
if (col == 0)
|
|
col = 80;
|
|
|
|
/*
|
|
* !!!
|
|
* POSIX 1003.2 requires the environment to override everything.
|
|
* Often, people can get nvi to stop messing up their screen by
|
|
* deleting the LINES and COLUMNS environment variables from their
|
|
* dot-files.
|
|
*/
|
|
if ((p = getenv("LINES")) != NULL)
|
|
row = strtol(p, NULL, 10);
|
|
if ((p = getenv("COLUMNS")) != NULL)
|
|
col = strtol(p, NULL, 10);
|
|
|
|
if (rowp != NULL)
|
|
*rowp = row;
|
|
if (colp != NULL)
|
|
*colp = col;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* cl_putchar --
|
|
* Function version of putchar, for tputs.
|
|
*
|
|
* PUBLIC: int cl_putchar(int);
|
|
*/
|
|
int
|
|
cl_putchar(int ch)
|
|
{
|
|
return (putchar(ch));
|
|
}
|