ncurses/trace/lib_tracebits.c

   1 /****************************************************************************
   2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
   3  *                                                                          *
   4  * Permission is hereby granted, free of charge, to any person obtaining a  *
   5  * copy of this software and associated documentation files (the            *
   6  * "Software"), to deal in the Software without restriction, including      *
   7  * without limitation the rights to use, copy, modify, merge, publish,      *
   8  * distribute, distribute with modifications, sublicense, and/or sell       *
   9  * copies of the Software, and to permit persons to whom the Software is    *
  10  * furnished to do so, subject to the following conditions:                 *
  11  *                                                                          *
  12  * The above copyright notice and this permission notice shall be included  *
  13  * in all copies or substantial portions of the Software.                   *
  14  *                                                                          *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  22  *                                                                          *
  23  * Except as contained in this notice, the name(s) of the above copyright   *
  24  * holders shall not be used in advertising or otherwise to promote the     *
  25  * sale, use or other dealings in this Software without prior written       *
  26  * authorization.                                                           *
  27  ****************************************************************************/
  28
  29 /****************************************************************************
  30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  32  ****************************************************************************/
  33
  34 #include <curses.priv.h>
  35 #include <term.h>       /* cur_term */
  36
  37 MODULE_ID("$Id: lib_tracebits.c,v 1.3 1999/08/21 21:43:48 tom Exp $")
  38
  39 #if defined(SVR4_TERMIO) && !defined(_POSIX_SOURCE)
  40 #define _POSIX_SOURCE
  41 #endif
  42
  43 #if HAVE_SYS_TERMIO_H
  44 #include <sys/termio.h> /* needed for ISC */
  45 #endif
  46
  47 #ifdef __EMX__
  48 #include <io.h>
  49 #include <fcntl.h>
  50 #endif
  51
  52 /* may be undefined if we're using termio.h */
  53 #ifndef TOSTOP
  54 #define TOSTOP 0
  55 #endif
  56 #ifndef IEXTEN
  57 #define IEXTEN 0
  58 #endif
  59
  60 #ifdef TRACE
  61
  62 typedef struct {unsigned int val; const char *name;} BITNAMES;
  63
  64 static void lookup_bits(char *buf, const BITNAMES *table, const char *label, unsigned int val)
  65 {
  66         const BITNAMES *sp;
  67
  68         (void) strcat(buf, label);
  69         (void) strcat(buf, ": {");
  70         for (sp = table; sp->name; sp++)
  71                 if (sp->val != 0
  72                 && (val & sp->val) == sp->val)
  73                 {
  74                         (void) strcat(buf, sp->name);
  75                         (void) strcat(buf, ", ");
  76                 }
  77         if (buf[strlen(buf) - 2] == ',')
  78                 buf[strlen(buf) - 2] = '\0';
  79         (void) strcat(buf,"} ");
  80 }
  81
  82 char *_nc_tracebits(void)
  83 /* describe the state of the terminal control bits exactly */
  84 {
  85 char    *buf;
  86 static const    BITNAMES
  87
  88 #ifdef TERMIOS
  89 iflags[] =
  90     {
  91         {BRKINT,        "BRKINT"},
  92         {IGNBRK,        "IGNBRK"},
  93         {IGNPAR,        "IGNPAR"},
  94         {PARMRK,        "PARMRK"},
  95         {INPCK,         "INPCK"},
  96         {ISTRIP,        "ISTRIP"},
  97         {INLCR,         "INLCR"},
  98         {IGNCR,         "IGNC"},
  99         {ICRNL,         "ICRNL"},
 100         {IXON,          "IXON"},
 101         {IXOFF,         "IXOFF"},
 102         {0,             NULL}
 103 #define ALLIN   (BRKINT|IGNBRK|IGNPAR|PARMRK|INPCK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IXOFF)
 104     },
 105 oflags[] =
 106     {
 107         {OPOST,         "OPOST"},
 108         {0,             NULL}
 109 #define ALLOUT  (OPOST)
 110     },
 111 cflags[] =
 112     {
 113         {CLOCAL,        "CLOCAL"},
 114         {CREAD,         "CREAD"},
 115         {CSTOPB,        "CSTOPB"},
 116 #if !defined(CS5) || !defined(CS8)
 117         {CSIZE,         "CSIZE"},
 118 #endif
 119         {HUPCL,         "HUPCL"},
 120         {PARENB,        "PARENB"},
 121         {PARODD|PARENB, "PARODD"},      /* concession to readability */
 122         {0,             NULL}
 123 #define ALLCTRL (CLOCAL|CREAD|CSIZE|CSTOPB|HUPCL|PARENB|PARODD)
 124     },
 125 lflags[] =
 126     {
 127         {ECHO,          "ECHO"},
 128         {ECHOE|ECHO,    "ECHOE"},       /* concession to readability */
 129         {ECHOK|ECHO,    "ECHOK"},       /* concession to readability */
 130         {ECHONL,        "ECHONL"},
 131         {ICANON,        "ICANON"},
 132         {ISIG,          "ISIG"},
 133         {NOFLSH,        "NOFLSH"},
 134         {TOSTOP,        "TOSTOP"},
 135         {IEXTEN,        "IEXTEN"},
 136         {0,             NULL}
 137 #define ALLLOCAL        (ECHO|ECHONL|ICANON|ISIG|NOFLSH|TOSTOP|IEXTEN)
 138     };
 139
 140
 141     buf = _nc_trace_buf(0,
 142         8 + sizeof(iflags) +
 143         8 + sizeof(oflags) +
 144         8 + sizeof(cflags) +
 145         8 + sizeof(lflags) +
 146         8);
 147
 148     if (cur_term->Nttyb.c_iflag & ALLIN)
 149         lookup_bits(buf, iflags, "iflags", cur_term->Nttyb.c_iflag);
 150
 151     if (cur_term->Nttyb.c_oflag & ALLOUT)
 152         lookup_bits(buf, oflags, "oflags", cur_term->Nttyb.c_oflag);
 153
 154     if (cur_term->Nttyb.c_cflag & ALLCTRL)
 155         lookup_bits(buf, cflags, "cflags", cur_term->Nttyb.c_cflag);
 156
 157 #if defined(CS5) && defined(CS8)
 158     switch (cur_term->Nttyb.c_cflag & CSIZE) {
 159 #if defined(CS5) && (CS5 != 0)
 160     case CS5:   strcat(buf, "CS5 ");    break;
 161 #endif
 162 #if defined(CS6) && (CS6 != 0)
 163     case CS6:   strcat(buf, "CS6 ");    break;
 164 #endif
 165 #if defined(CS7) && (CS7 != 0)
 166     case CS7:   strcat(buf, "CS7 ");    break;
 167 #endif
 168 #if defined(CS8) && (CS8 != 0)
 169     case CS8:   strcat(buf, "CS8 ");    break;
 170 #endif
 171     default:    strcat(buf, "CSIZE? "); break;
 172     }
 173 #endif
 174
 175     if (cur_term->Nttyb.c_lflag & ALLLOCAL)
 176         lookup_bits(buf, lflags, "lflags", cur_term->Nttyb.c_lflag);
 177
 178 #else
 179     /* reference: ttcompat(4M) on SunOS 4.1 */
 180 #ifndef EVENP
 181 #define EVENP 0
 182 #endif
 183 #ifndef LCASE
 184 #define LCASE 0
 185 #endif
 186 #ifndef LLITOUT
 187 #define LLITOUT 0
 188 #endif
 189 #ifndef ODDP
 190 #define ODDP 0
 191 #endif
 192 #ifndef TANDEM
 193 #define TANDEM 0
 194 #endif
 195
 196 cflags[] =
 197     {
 198         {CBREAK,        "CBREAK"},
 199         {CRMOD,         "CRMOD"},
 200         {ECHO,          "ECHO"},
 201         {EVENP,         "EVENP"},
 202         {LCASE,         "LCASE"},
 203         {LLITOUT,       "LLITOUT"},
 204         {ODDP,          "ODDP"},
 205         {RAW,           "RAW"},
 206         {TANDEM,        "TANDEM"},
 207         {XTABS,         "XTABS"},
 208         {0,             NULL}
 209 #define ALLCTRL (CBREAK|CRMOD|ECHO|EVENP|LCASE|LLITOUT|ODDP|RAW|TANDEM|XTABS)
 210     };
 211
 212     buf = _nc_trace_buf(0,
 213         8 + sizeof(cflags));
 214
 215     if (cur_term->Nttyb.sg_flags & ALLCTRL)
 216     {
 217         lookup_bits(buf, cflags, "cflags", cur_term->Nttyb.sg_flags);
 218     }
 219
 220 #endif
 221     return(buf);
 222 }
 223 #else
 224 char *_nc_tracebits(void) { static char tmp[] = ""; return tmp; }
 225 #endif /* TRACE */