1 /**************************************************************************** 2 * Copyright (c) 1998-2008,2011 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 37 MODULE_ID("$Id: lib_tracebits.c,v 1.19 2011/01/09 00:23:03 tom Exp $") 38 39 #if 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 #endif 50 51 /* may be undefined if we're using termio.h */ 52 #ifndef TOSTOP 53 #define TOSTOP 0 54 #endif 55 56 #ifndef IEXTEN 57 #define IEXTEN 0 58 #endif 59 60 #ifndef ONLCR 61 #define ONLCR 0 62 #endif 63 64 #ifndef OCRNL 65 #define OCRNL 0 66 #endif 67 68 #ifndef ONOCR 69 #define ONOCR 0 70 #endif 71 72 #ifndef ONLRET 73 #define ONLRET 0 74 #endif 75 76 #ifdef TRACE 77 78 typedef struct { 79 unsigned int val; 80 const char *name; 81 } BITNAMES; 82 83 static void 84 lookup_bits(char *buf, const BITNAMES * table, const char *label, unsigned int val) 85 { 86 const BITNAMES *sp; 87 88 (void) strcat(buf, label); 89 (void) strcat(buf, ": {"); 90 for (sp = table; sp->name; sp++) 91 if (sp->val != 0 92 && (val & sp->val) == sp->val) { 93 (void) strcat(buf, sp->name); 94 (void) strcat(buf, ", "); 95 } 96 if (buf[strlen(buf) - 2] == ',') 97 buf[strlen(buf) - 2] = '\0'; 98 (void) strcat(buf, "} "); 99 } 100 101 NCURSES_EXPORT(char *) 102 _nc_trace_ttymode(TTY * tty) 103 /* describe the state of the terminal control bits exactly */ 104 { 105 char *buf; 106 107 #ifdef TERMIOS 108 static const BITNAMES iflags[] = 109 { 110 {BRKINT, "BRKINT"}, 111 {IGNBRK, "IGNBRK"}, 112 {IGNPAR, "IGNPAR"}, 113 {PARMRK, "PARMRK"}, 114 {INPCK, "INPCK"}, 115 {ISTRIP, "ISTRIP"}, 116 {INLCR, "INLCR"}, 117 {IGNCR, "IGNC"}, 118 {ICRNL, "ICRNL"}, 119 {IXON, "IXON"}, 120 {IXOFF, "IXOFF"}, 121 {0, NULL} 122 #define ALLIN (BRKINT|IGNBRK|IGNPAR|PARMRK|INPCK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IXOFF) 123 }, oflags[] = 124 { 125 {OPOST, "OPOST"}, 126 {OFLAGS_TABS, "XTABS"}, 127 {ONLCR, "ONLCR"}, 128 {OCRNL, "OCRNL"}, 129 {ONOCR, "ONOCR"}, 130 {ONLRET, "ONLRET"}, 131 {0, NULL} 132 #define ALLOUT (OPOST|OFLAGS_TABS|ONLCR|OCRNL|ONOCR|ONLRET) 133 }, cflags[] = 134 { 135 {CLOCAL, "CLOCAL"}, 136 {CREAD, "CREAD"}, 137 {CSTOPB, "CSTOPB"}, 138 #if !defined(CS5) || !defined(CS8) 139 {CSIZE, "CSIZE"}, 140 #endif 141 {HUPCL, "HUPCL"}, 142 {PARENB, "PARENB"}, 143 {PARODD | PARENB, "PARODD"}, /* concession to readability */ 144 {0, NULL} 145 #define ALLCTRL (CLOCAL|CREAD|CSIZE|CSTOPB|HUPCL|PARENB|PARODD) 146 }, lflags[] = 147 { 148 {ECHO, "ECHO"}, 149 {ECHOE | ECHO, "ECHOE"}, /* concession to readability */ 150 {ECHOK | ECHO, "ECHOK"}, /* concession to readability */ 151 {ECHONL, "ECHONL"}, 152 {ICANON, "ICANON"}, 153 {ISIG, "ISIG"}, 154 {NOFLSH, "NOFLSH"}, 155 {TOSTOP, "TOSTOP"}, 156 {IEXTEN, "IEXTEN"}, 157 {0, NULL} 158 #define ALLLOCAL (ECHO|ECHONL|ICANON|ISIG|NOFLSH|TOSTOP|IEXTEN) 159 }; 160 161 buf = _nc_trace_buf(0, 162 8 + sizeof(iflags) + 163 8 + sizeof(oflags) + 164 8 + sizeof(cflags) + 165 8 + sizeof(lflags) + 166 8); 167 if (buf != 0) { 168 169 if (tty->c_iflag & ALLIN) 170 lookup_bits(buf, iflags, "iflags", tty->c_iflag); 171 172 if (tty->c_oflag & ALLOUT) 173 lookup_bits(buf, oflags, "oflags", tty->c_oflag); 174 175 if (tty->c_cflag & ALLCTRL) 176 lookup_bits(buf, cflags, "cflags", tty->c_cflag); 177 178 #if defined(CS5) && defined(CS8) 179 { 180 static struct { 181 int value; 182 const char *name; 183 } csizes[] = { 184 #define CS_DATA(name) { name, #name " " } 185 CS_DATA(CS5), 186 #ifdef CS6 187 CS_DATA(CS6), 188 #endif 189 #ifdef CS7 190 CS_DATA(CS7), 191 #endif 192 CS_DATA(CS8), 193 }; 194 const char *result = "CSIZE? "; 195 int value = (tty->c_cflag & CSIZE); 196 unsigned n; 197 198 if (value != 0) { 199 for (n = 0; n < SIZEOF(csizes); n++) { 200 if (csizes[n].value == value) { 201 result = csizes[n].name; 202 break; 203 } 204 } 205 } 206 strcat(buf, result); 207 } 208 #endif 209 210 if (tty->c_lflag & ALLLOCAL) 211 lookup_bits(buf, lflags, "lflags", tty->c_lflag); 212 } 213 #else 214 /* reference: ttcompat(4M) on SunOS 4.1 */ 215 #ifndef EVENP 216 #define EVENP 0 217 #endif 218 #ifndef LCASE 219 #define LCASE 0 220 #endif 221 #ifndef LLITOUT 222 #define LLITOUT 0 223 #endif 224 #ifndef ODDP 225 #define ODDP 0 226 #endif 227 #ifndef TANDEM 228 #define TANDEM 0 229 #endif 230 231 static const BITNAMES cflags[] = 232 { 233 {CBREAK, "CBREAK"}, 234 {CRMOD, "CRMOD"}, 235 {ECHO, "ECHO"}, 236 {EVENP, "EVENP"}, 237 {LCASE, "LCASE"}, 238 {LLITOUT, "LLITOUT"}, 239 {ODDP, "ODDP"}, 240 {RAW, "RAW"}, 241 {TANDEM, "TANDEM"}, 242 {XTABS, "XTABS"}, 243 {0, NULL} 244 #define ALLCTRL (CBREAK|CRMOD|ECHO|EVENP|LCASE|LLITOUT|ODDP|RAW|TANDEM|XTABS) 245 }; 246 247 buf = _nc_trace_buf(0, 248 8 + sizeof(cflags)); 249 if (buf != 0) { 250 if (tty->sg_flags & ALLCTRL) { 251 lookup_bits(buf, cflags, "cflags", tty->sg_flags); 252 } 253 } 254 #endif 255 return (buf); 256 } 257 258 NCURSES_EXPORT(char *) 259 _nc_tracebits(void) 260 { 261 return _nc_trace_ttymode(&(cur_term->Nttyb)); 262 } 263 #else 264 EMPTY_MODULE(_nc_empty_lib_tracebits) 265 #endif /* TRACE */ 266