1 /*- 2 * Copyright (c) 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)print.c 8.6 (Berkeley) 4/16/94 30 * $FreeBSD: src/bin/stty/print.c,v 1.12.2.2 2001/07/04 22:40:00 kris Exp $ 31 * $DragonFly: src/bin/stty/print.c,v 1.5 2004/11/07 20:54:52 eirikn Exp $ 32 */ 33 34 #include <sys/types.h> 35 36 #include <stddef.h> 37 #include <stdio.h> 38 #include <string.h> 39 40 #include "stty.h" 41 #include "extern.h" 42 43 #include <sys/ioctl_compat.h> /* XXX NTTYDISC is too well hidden */ 44 45 static void binit (const char *); 46 static void bput (const char *); 47 static const char *ccval (struct cchar *, int); 48 49 void 50 print(struct termios *tp, struct winsize *wp, int ldisc, enum FMT fmt) 51 { 52 struct cchar *p; 53 long tmp; 54 u_char *cc; 55 int cnt, ispeed, ospeed; 56 char buf1[100], buf2[100]; 57 58 cnt = 0; 59 60 /* Line discipline. */ 61 if (ldisc != TTYDISC) { 62 switch(ldisc) { 63 case NTTYDISC: 64 cnt += printf("new tty disc; "); 65 break; 66 case SLIPDISC: 67 cnt += printf("slip disc; "); 68 break; 69 case PPPDISC: 70 cnt += printf("ppp disc; "); 71 break; 72 default: 73 cnt += printf("#%d disc; ", ldisc); 74 break; 75 } 76 } 77 78 /* Line speed. */ 79 ispeed = cfgetispeed(tp); 80 ospeed = cfgetospeed(tp); 81 if (ispeed != ospeed) 82 cnt += 83 printf("ispeed %d baud; ospeed %d baud;", ispeed, ospeed); 84 else 85 cnt += printf("speed %d baud;", ispeed); 86 if (fmt >= BSD) 87 cnt += printf(" %d rows; %d columns;", wp->ws_row, wp->ws_col); 88 if (cnt) 89 printf("\n"); 90 91 #define on(f) ((tmp & (f)) != 0) 92 #define put(n, f, d) \ 93 if (fmt >= BSD || on(f) != (d)) \ 94 bput((n) + on(f)); 95 96 /* "local" flags */ 97 tmp = tp->c_lflag; 98 binit("lflags"); 99 put("-icanon", ICANON, 1); 100 put("-isig", ISIG, 1); 101 put("-iexten", IEXTEN, 1); 102 put("-echo", ECHO, 1); 103 put("-echoe", ECHOE, 0); 104 put("-echok", ECHOK, 0); 105 put("-echoke", ECHOKE, 0); 106 put("-echonl", ECHONL, 0); 107 put("-echoctl", ECHOCTL, 0); 108 put("-echoprt", ECHOPRT, 0); 109 put("-altwerase", ALTWERASE, 0); 110 put("-noflsh", NOFLSH, 0); 111 put("-tostop", TOSTOP, 0); 112 put("-flusho", FLUSHO, 0); 113 put("-pendin", PENDIN, 0); 114 put("-nokerninfo", NOKERNINFO, 0); 115 put("-extproc", EXTPROC, 0); 116 117 /* input flags */ 118 tmp = tp->c_iflag; 119 binit("iflags"); 120 put("-istrip", ISTRIP, 0); 121 put("-icrnl", ICRNL, 1); 122 put("-inlcr", INLCR, 0); 123 put("-igncr", IGNCR, 0); 124 put("-ixon", IXON, 1); 125 put("-ixoff", IXOFF, 0); 126 put("-ixany", IXANY, 1); 127 put("-imaxbel", IMAXBEL, 1); 128 put("-ignbrk", IGNBRK, 0); 129 put("-brkint", BRKINT, 1); 130 put("-inpck", INPCK, 0); 131 put("-ignpar", IGNPAR, 0); 132 put("-parmrk", PARMRK, 0); 133 134 /* output flags */ 135 tmp = tp->c_oflag; 136 binit("oflags"); 137 put("-opost", OPOST, 1); 138 put("-onlcr", ONLCR, 1); 139 put("-ocrnl", OCRNL, 0); 140 put("-oxtabs", OXTABS, 1); 141 put("-onocr", OXTABS, 0); 142 put("-onlret", OXTABS, 0); 143 144 /* control flags (hardware state) */ 145 tmp = tp->c_cflag; 146 binit("cflags"); 147 put("-cread", CREAD, 1); 148 switch(tmp&CSIZE) { 149 case CS5: 150 bput("cs5"); 151 break; 152 case CS6: 153 bput("cs6"); 154 break; 155 case CS7: 156 bput("cs7"); 157 break; 158 case CS8: 159 bput("cs8"); 160 break; 161 } 162 bput("-parenb" + on(PARENB)); 163 put("-parodd", PARODD, 0); 164 put("-hupcl", HUPCL, 1); 165 put("-clocal", CLOCAL, 0); 166 put("-cstopb", CSTOPB, 0); 167 switch(tmp & (CCTS_OFLOW | CRTS_IFLOW)) { 168 case CCTS_OFLOW: 169 bput("ctsflow"); 170 break; 171 case CRTS_IFLOW: 172 bput("rtsflow"); 173 break; 174 default: 175 put("-crtscts", CCTS_OFLOW | CRTS_IFLOW, 0); 176 break; 177 } 178 put("-dsrflow", CDSR_OFLOW, 0); 179 put("-dtrflow", CDTR_IFLOW, 0); 180 put("-mdmbuf", MDMBUF, 0); /* XXX mdmbuf == dtrflow */ 181 182 /* special control characters */ 183 cc = tp->c_cc; 184 if (fmt == POSIX) { 185 binit("cchars"); 186 for (p = cchars1; p->name; ++p) { 187 snprintf(buf1, sizeof(buf1), "%s = %s;", 188 p->name, ccval(p, cc[p->sub])); 189 bput(buf1); 190 } 191 binit(NULL); 192 } else { 193 binit(NULL); 194 for (p = cchars1, cnt = 0; p->name; ++p) { 195 if (fmt != BSD && cc[p->sub] == p->def) 196 continue; 197 #define WD "%-8s" 198 snprintf(buf1 + cnt * 8, sizeof(buf1) - cnt * 8, 199 WD, p->name); 200 snprintf(buf2 + cnt * 8, sizeof(buf2) - cnt * 8, 201 WD, ccval(p, cc[p->sub])); 202 if (++cnt == LINELENGTH / 8) { 203 cnt = 0; 204 printf("%s\n", buf1); 205 printf("%s\n", buf2); 206 } 207 } 208 if (cnt) { 209 printf("%s\n", buf1); 210 printf("%s\n", buf2); 211 } 212 } 213 } 214 215 static int col; 216 static const char *label; 217 218 static void 219 binit(const char *lb) 220 { 221 222 if (col) { 223 printf("\n"); 224 col = 0; 225 } 226 label = lb; 227 } 228 229 static void 230 bput(const char *s) 231 { 232 233 if (col == 0) { 234 col = printf("%s: %s", label, s); 235 return; 236 } 237 if ((col + strlen(s)) > LINELENGTH) { 238 printf("\n\t"); 239 col = printf("%s", s) + 8; 240 return; 241 } 242 col += printf(" %s", s); 243 } 244 245 static const char * 246 ccval(struct cchar *p, int c) 247 { 248 static char buf[5]; 249 char *bp; 250 251 if (p->sub == VMIN || p->sub == VTIME) { 252 snprintf(buf, sizeof(buf), "%d", c); 253 return (buf); 254 } 255 if (c == _POSIX_VDISABLE) 256 return ("<undef>"); 257 bp = buf; 258 if (c & 0200) { 259 *bp++ = 'M'; 260 *bp++ = '-'; 261 c &= 0177; 262 } 263 if (c == 0177) { 264 *bp++ = '^'; 265 *bp++ = '?'; 266 } 267 else if (c < 040) { 268 *bp++ = '^'; 269 *bp++ = c + '@'; 270 } 271 else 272 *bp++ = c; 273 *bp = '\0'; 274 return (buf); 275 } 276