1 /**************************************************************************** 2 * Copyright (c) 1998-2007,2008 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 * and: Thomas E. Dickey 1996-on * 33 ****************************************************************************/ 34 35 #include <curses.priv.h> 36 #include <term.h> /* cur_term */ 37 38 MODULE_ID("$Id: lib_tracebits.c,v 1.17 2008/08/03 16:09:26 tom Exp $") 39 40 #if SVR4_TERMIO && !defined(_POSIX_SOURCE) 41 #define _POSIX_SOURCE 42 #endif 43 44 #if HAVE_SYS_TERMIO_H 45 #include <sys/termio.h> /* needed for ISC */ 46 #endif 47 48 #ifdef __EMX__ 49 #include <io.h> 50 #endif 51 52 /* may be undefined if we're using termio.h */ 53 #ifndef TOSTOP 54 #define TOSTOP 0 55 #endif 56 57 #ifndef IEXTEN 58 #define IEXTEN 0 59 #endif 60 61 #ifndef ONLCR 62 #define ONLCR 0 63 #endif 64 65 #ifndef OCRNL 66 #define OCRNL 0 67 #endif 68 69 #ifndef ONOCR 70 #define ONOCR 0 71 #endif 72 73 #ifndef ONLRET 74 #define ONLRET 0 75 #endif 76 77 #ifdef TRACE 78 79 typedef struct { 80 unsigned int val; 81 const char *name; 82 } BITNAMES; 83 84 static void 85 lookup_bits(char *buf, const BITNAMES * table, const char *label, unsigned int val) 86 { 87 const BITNAMES *sp; 88 89 (void) strcat(buf, label); 90 (void) strcat(buf, ": {"); 91 for (sp = table; sp->name; sp++) 92 if (sp->val != 0 93 && (val & sp->val) == sp->val) { 94 (void) strcat(buf, sp->name); 95 (void) strcat(buf, ", "); 96 } 97 if (buf[strlen(buf) - 2] == ',') 98 buf[strlen(buf) - 2] = '\0'; 99 (void) strcat(buf, "} "); 100 } 101 102 NCURSES_EXPORT(char *) 103 _nc_trace_ttymode(TTY * tty) 104 /* describe the state of the terminal control bits exactly */ 105 { 106 char *buf; 107 108 #ifdef TERMIOS 109 static const BITNAMES iflags[] = 110 { 111 {BRKINT, "BRKINT"}, 112 {IGNBRK, "IGNBRK"}, 113 {IGNPAR, "IGNPAR"}, 114 {PARMRK, "PARMRK"}, 115 {INPCK, "INPCK"}, 116 {ISTRIP, "ISTRIP"}, 117 {INLCR, "INLCR"}, 118 {IGNCR, "IGNC"}, 119 {ICRNL, "ICRNL"}, 120 {IXON, "IXON"}, 121 {IXOFF, "IXOFF"}, 122 {0, NULL} 123 #define ALLIN (BRKINT|IGNBRK|IGNPAR|PARMRK|INPCK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IXOFF) 124 }, oflags[] = 125 { 126 {OPOST, "OPOST"}, 127 {OFLAGS_TABS, "XTABS"}, 128 {ONLCR, "ONLCR"}, 129 {OCRNL, "OCRNL"}, 130 {ONOCR, "ONOCR"}, 131 {ONLRET, "ONLRET"}, 132 {0, NULL} 133 #define ALLOUT (OPOST|OFLAGS_TABS|ONLCR|OCRNL|ONOCR|ONLRET) 134 }, cflags[] = 135 { 136 {CLOCAL, "CLOCAL"}, 137 {CREAD, "CREAD"}, 138 {CSTOPB, "CSTOPB"}, 139 #if !defined(CS5) || !defined(CS8) 140 {CSIZE, "CSIZE"}, 141 #endif 142 {HUPCL, "HUPCL"}, 143 {PARENB, "PARENB"}, 144 {PARODD | PARENB, "PARODD"}, /* concession to readability */ 145 {0, NULL} 146 #define ALLCTRL (CLOCAL|CREAD|CSIZE|CSTOPB|HUPCL|PARENB|PARODD) 147 }, lflags[] = 148 { 149 {ECHO, "ECHO"}, 150 {ECHOE | ECHO, "ECHOE"}, /* concession to readability */ 151 {ECHOK | ECHO, "ECHOK"}, /* concession to readability */ 152 {ECHONL, "ECHONL"}, 153 {ICANON, "ICANON"}, 154 {ISIG, "ISIG"}, 155 {NOFLSH, "NOFLSH"}, 156 {TOSTOP, "TOSTOP"}, 157 {IEXTEN, "IEXTEN"}, 158 {0, NULL} 159 #define ALLLOCAL (ECHO|ECHONL|ICANON|ISIG|NOFLSH|TOSTOP|IEXTEN) 160 }; 161 162 buf = _nc_trace_buf(0, 163 8 + sizeof(iflags) + 164 8 + sizeof(oflags) + 165 8 + sizeof(cflags) + 166 8 + sizeof(lflags) + 167 8); 168 if (buf != 0) { 169 170 if (tty->c_iflag & ALLIN) 171 lookup_bits(buf, iflags, "iflags", tty->c_iflag); 172 173 if (tty->c_oflag & ALLOUT) 174 lookup_bits(buf, oflags, "oflags", tty->c_oflag); 175 176 if (tty->c_cflag & ALLCTRL) 177 lookup_bits(buf, cflags, "cflags", tty->c_cflag); 178 179 #if defined(CS5) && defined(CS8) 180 { 181 static struct { 182 int value; 183 const char *name; 184 } csizes[] = { 185 #define CS_DATA(name) { name, #name " " } 186 CS_DATA(CS5), 187 #ifdef CS6 188 CS_DATA(CS6), 189 #endif 190 #ifdef CS7 191 CS_DATA(CS7), 192 #endif 193 CS_DATA(CS8), 194 }; 195 const char *result = "CSIZE? "; 196 int value = (tty->c_cflag & CSIZE); 197 unsigned n; 198 199 if (value != 0) { 200 for (n = 0; n < SIZEOF(csizes); n++) { 201 if (csizes[n].value == value) { 202 result = csizes[n].name; 203 break; 204 } 205 } 206 } 207 strcat(buf, result); 208 } 209 #endif 210 211 if (tty->c_lflag & ALLLOCAL) 212 lookup_bits(buf, lflags, "lflags", tty->c_lflag); 213 } 214 #else 215 /* reference: ttcompat(4M) on SunOS 4.1 */ 216 #ifndef EVENP 217 #define EVENP 0 218 #endif 219 #ifndef LCASE 220 #define LCASE 0 221 #endif 222 #ifndef LLITOUT 223 #define LLITOUT 0 224 #endif 225 #ifndef ODDP 226 #define ODDP 0 227 #endif 228 #ifndef TANDEM 229 #define TANDEM 0 230 #endif 231 232 static const BITNAMES cflags[] = 233 { 234 {CBREAK, "CBREAK"}, 235 {CRMOD, "CRMOD"}, 236 {ECHO, "ECHO"}, 237 {EVENP, "EVENP"}, 238 {LCASE, "LCASE"}, 239 {LLITOUT, "LLITOUT"}, 240 {ODDP, "ODDP"}, 241 {RAW, "RAW"}, 242 {TANDEM, "TANDEM"}, 243 {XTABS, "XTABS"}, 244 {0, NULL} 245 #define ALLCTRL (CBREAK|CRMOD|ECHO|EVENP|LCASE|LLITOUT|ODDP|RAW|TANDEM|XTABS) 246 }; 247 248 buf = _nc_trace_buf(0, 249 8 + sizeof(cflags)); 250 if (buf != 0) { 251 if (tty->sg_flags & ALLCTRL) { 252 lookup_bits(buf, cflags, "cflags", tty->sg_flags); 253 } 254 } 255 #endif 256 return (buf); 257 } 258 259 NCURSES_EXPORT(char *) 260 _nc_tracebits(void) 261 { 262 return _nc_trace_ttymode(&(cur_term->Nttyb)); 263 } 264 #else 265 EMPTY_MODULE(_nc_tracebits) 266 #endif /* TRACE */ 267