1 /**************************************************************************** 2 * Copyright (c) 1998-2012,2015 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 1.26 2015/04/19 14:58:39 tom Exp $") 38 39 #if HAVE_SYS_TERMIO_H 40 #include <sys/termio.h> /* needed for ISC */ 41 #endif 42 43 #ifdef __EMX__ 44 #include <io.h> 45 #endif 46 47 /* may be undefined if we're using termio.h */ 48 #ifndef TOSTOP 49 #define TOSTOP 0 50 #endif 51 52 #ifndef IEXTEN 53 #define IEXTEN 0 54 #endif 55 56 #ifndef ONLCR 57 #define ONLCR 0 58 #endif 59 60 #ifndef OCRNL 61 #define OCRNL 0 62 #endif 63 64 #ifndef ONOCR 65 #define ONOCR 0 66 #endif 67 68 #ifndef ONLRET 69 #define ONLRET 0 70 #endif 71 72 #ifdef TRACE 73 74 typedef struct { 75 unsigned int val; 76 const char name[8]; 77 } BITNAMES; 78 79 #define TRACE_BUF_SIZE(num) (_nc_globals.tracebuf_ptr[num].size) 80 81 static void 82 lookup_bits(char *buf, const BITNAMES * table, const char *label, unsigned int val) 83 { 84 const BITNAMES *sp; 85 86 _nc_STRCAT(buf, label, TRACE_BUF_SIZE(0)); 87 _nc_STRCAT(buf, ": {", TRACE_BUF_SIZE(0)); 88 for (sp = table; sp->name[0]; sp++) 89 if (sp->val != 0 90 && (val & sp->val) == sp->val) { 91 _nc_STRCAT(buf, sp->name, TRACE_BUF_SIZE(0)); 92 _nc_STRCAT(buf, ", ", TRACE_BUF_SIZE(0)); 93 } 94 if (buf[strlen(buf) - 2] == ',') 95 buf[strlen(buf) - 2] = '\0'; 96 _nc_STRCAT(buf, "} ", TRACE_BUF_SIZE(0)); 97 } 98 99 NCURSES_EXPORT(char *) 100 _nc_trace_ttymode(TTY * tty) 101 /* describe the state of the terminal control bits exactly */ 102 { 103 char *buf; 104 105 #ifdef TERMIOS 106 #define DATA(name) { name, { #name } } 107 #define DATA2(name,name2) { name, { #name2 } } 108 #define DATAX() { 0, { "" } } 109 static const BITNAMES iflags[] = 110 { 111 DATA(BRKINT), 112 DATA(IGNBRK), 113 DATA(IGNPAR), 114 DATA(PARMRK), 115 DATA(INPCK), 116 DATA(ISTRIP), 117 DATA(INLCR), 118 DATA(IGNCR), 119 DATA(ICRNL), 120 DATA(IXON), 121 DATA(IXOFF), 122 DATAX() 123 #define ALLIN (BRKINT|IGNBRK|IGNPAR|PARMRK|INPCK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IXOFF) 124 }, oflags[] = 125 { 126 DATA(OPOST), 127 DATA2(OFLAGS_TABS, XTABS), 128 DATA(ONLCR), 129 DATA(OCRNL), 130 DATA(ONOCR), 131 DATA(ONLRET), 132 DATAX() 133 #define ALLOUT (OPOST|OFLAGS_TABS|ONLCR|OCRNL|ONOCR|ONLRET) 134 }, cflags[] = 135 { 136 DATA(CLOCAL), 137 DATA(CREAD), 138 DATA(CSTOPB), 139 #if !defined(CS5) || !defined(CS8) 140 DATA(CSIZE), 141 #endif 142 DATA(HUPCL), 143 DATA(PARENB), 144 DATA2(PARODD | PARENB, PARODD), 145 DATAX() 146 #define ALLCTRL (CLOCAL|CREAD|CSIZE|CSTOPB|HUPCL|PARENB|PARODD) 147 }, lflags[] = 148 { 149 DATA(ECHO), 150 DATA2(ECHOE | ECHO, ECHOE), 151 DATA2(ECHOK | ECHO, ECHOK), 152 DATA(ECHONL), 153 DATA(ICANON), 154 DATA(ISIG), 155 DATA(NOFLSH), 156 DATA(TOSTOP), 157 DATA(IEXTEN), 158 DATAX() 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 const struct { 182 int value; 183 const char name[5]; 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 = (int) (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 _nc_STRCAT(buf, result, TRACE_BUF_SIZE(0)); 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 DATA(CBREAK), 235 DATA(CRMOD), 236 DATA(ECHO), 237 DATA(EVENP), 238 DATA(LCASE), 239 DATA(LLITOUT), 240 DATA(ODDP), 241 DATA(RAW), 242 DATA(TANDEM), 243 DATA(XTABS), 244 DATAX() 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_empty_lib_tracebits) 266 #endif /* TRACE */ 267