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/* $OpenBSD: lib_tracebits.c,v 1.10 2010/01/12 23:22:07 nicm Exp $ */
/****************************************************************************
* Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
* and: Thomas E. Dickey 1996-on *
****************************************************************************/
#include <curses.priv.h>
#include <term.h> /* cur_term */
MODULE_ID("$Id: lib_tracebits.c,v 1.10 2010/01/12 23:22:07 nicm Exp $")
#if SVR4_TERMIO && !defined(_POSIX_SOURCE)
#define _POSIX_SOURCE
#endif
#if HAVE_SYS_TERMIO_H
#include <sys/termio.h> /* needed for ISC */
#endif
#ifdef __EMX__
#include <io.h>
#endif
/* may be undefined if we're using termio.h */
#ifndef TOSTOP
#define TOSTOP 0
#endif
#ifndef IEXTEN
#define IEXTEN 0
#endif
#ifndef ONLCR
#define ONLCR 0
#endif
#ifndef OCRNL
#define OCRNL 0
#endif
#ifndef ONOCR
#define ONOCR 0
#endif
#ifndef ONLRET
#define ONLRET 0
#endif
#ifdef TRACE
typedef struct {
unsigned int val;
const char *name;
} BITNAMES;
static void
lookup_bits(char *buf, size_t bufsize, const BITNAMES * table, const char *label, unsigned int val)
{
const BITNAMES *sp;
(void) strlcat(buf, label, bufsize);
(void) strlcat(buf, ": {", bufsize);
for (sp = table; sp->name; sp++)
if (sp->val != 0
&& (val & sp->val) == sp->val) {
(void) strlcat(buf, sp->name, bufsize);
(void) strlcat(buf, ", ", bufsize);
}
if (buf[strlen(buf) - 2] == ',')
buf[strlen(buf) - 2] = '\0';
(void) strlcat(buf, "} ", bufsize);
}
NCURSES_EXPORT(char *)
_nc_trace_ttymode(TTY * tty)
/* describe the state of the terminal control bits exactly */
{
char *buf;
size_t bufsize;
#ifdef TERMIOS
static const BITNAMES iflags[] =
{
{BRKINT, "BRKINT"},
{IGNBRK, "IGNBRK"},
{IGNPAR, "IGNPAR"},
{PARMRK, "PARMRK"},
{INPCK, "INPCK"},
{ISTRIP, "ISTRIP"},
{INLCR, "INLCR"},
{IGNCR, "IGNC"},
{ICRNL, "ICRNL"},
{IXON, "IXON"},
{IXOFF, "IXOFF"},
{0, NULL}
#define ALLIN (BRKINT|IGNBRK|IGNPAR|PARMRK|INPCK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IXOFF)
}, oflags[] =
{
{OPOST, "OPOST"},
{OFLAGS_TABS, "XTABS"},
{ONLCR, "ONLCR"},
{OCRNL, "OCRNL"},
{ONOCR, "ONOCR"},
{ONLRET, "ONLRET"},
{0, NULL}
#define ALLOUT (OPOST|OFLAGS_TABS|ONLCR|OCRNL|ONOCR|ONLRET)
}, cflags[] =
{
{CLOCAL, "CLOCAL"},
{CREAD, "CREAD"},
{CSTOPB, "CSTOPB"},
#if !defined(CS5) || !defined(CS8)
{CSIZE, "CSIZE"},
#endif
{HUPCL, "HUPCL"},
{PARENB, "PARENB"},
{PARODD | PARENB, "PARODD"}, /* concession to readability */
{0, NULL}
#define ALLCTRL (CLOCAL|CREAD|CSIZE|CSTOPB|HUPCL|PARENB|PARODD)
}, lflags[] =
{
{ECHO, "ECHO"},
{ECHOE | ECHO, "ECHOE"}, /* concession to readability */
{ECHOK | ECHO, "ECHOK"}, /* concession to readability */
{ECHONL, "ECHONL"},
{ICANON, "ICANON"},
{ISIG, "ISIG"},
{NOFLSH, "NOFLSH"},
{TOSTOP, "TOSTOP"},
{IEXTEN, "IEXTEN"},
{0, NULL}
#define ALLLOCAL (ECHO|ECHONL|ICANON|ISIG|NOFLSH|TOSTOP|IEXTEN)
};
bufsize = 8 + sizeof(iflags) + 8 + sizeof(oflags) + 8 + sizeof(cflags) +
8 + sizeof(lflags) + 8;
buf = _nc_trace_buf(0, bufsize);
if (buf != 0) {
if (tty->c_iflag & ALLIN)
lookup_bits(buf, bufsize, iflags, "iflags", tty->c_iflag);
if (tty->c_oflag & ALLOUT)
lookup_bits(buf, bufsize, oflags, "oflags", tty->c_oflag);
if (tty->c_cflag & ALLCTRL)
lookup_bits(buf, bufsize, cflags, "cflags", tty->c_cflag);
#if defined(CS5) && defined(CS8)
{
static struct {
int value;
const char *name;
} csizes[] = {
#define CS_DATA(name) { name, #name " " }
CS_DATA(CS5),
#ifdef CS6
CS_DATA(CS6),
#endif
#ifdef CS7
CS_DATA(CS7),
#endif
CS_DATA(CS8),
};
const char *result = "CSIZE? ";
int value = (tty->c_cflag & CSIZE);
unsigned n;
if (value != 0) {
for (n = 0; n < SIZEOF(csizes); n++) {
if (csizes[n].value == value) {
result = csizes[n].name;
break;
}
}
}
strlcat(buf, result, bufsize);
}
#endif
if (tty->c_lflag & ALLLOCAL)
lookup_bits(buf, bufsize, lflags, "lflags", tty->c_lflag);
}
#else
/* reference: ttcompat(4M) on SunOS 4.1 */
#ifndef EVENP
#define EVENP 0
#endif
#ifndef LCASE
#define LCASE 0
#endif
#ifndef LLITOUT
#define LLITOUT 0
#endif
#ifndef ODDP
#define ODDP 0
#endif
#ifndef TANDEM
#define TANDEM 0
#endif
static const BITNAMES cflags[] =
{
{CBREAK, "CBREAK"},
{CRMOD, "CRMOD"},
{ECHO, "ECHO"},
{EVENP, "EVENP"},
{LCASE, "LCASE"},
{LLITOUT, "LLITOUT"},
{ODDP, "ODDP"},
{RAW, "RAW"},
{TANDEM, "TANDEM"},
{XTABS, "XTABS"},
{0, NULL}
#define ALLCTRL (CBREAK|CRMOD|ECHO|EVENP|LCASE|LLITOUT|ODDP|RAW|TANDEM|XTABS)
};
buf = _nc_trace_buf(0,
8 + sizeof(cflags));
if (buf != 0) {
if (tty->sg_flags & ALLCTRL) {
lookup_bits(buf, cflags, "cflags", tty->sg_flags);
}
}
#endif
return (buf);
}
NCURSES_EXPORT(char *)
_nc_tracebits(void)
{
return _nc_trace_ttymode(&(cur_term->Nttyb));
}
#else
NCURSES_EXPORT(char *)
_nc_tracebits(void)
{
return NULL;
}
#endif /* TRACE */
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