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 */ 32 33 #include <sys/types.h> 34 35 #include <stddef.h> 36 #include <stdio.h> 37 #include <string.h> 38 39 #include "stty.h" 40 #include "extern.h" 41 42 static void binit (const char *); 43 static void bput (const char *); 44 static const char *ccval (struct cchar *, int); 45 46 void 47 print(struct termios *tp, struct winsize *wp, int ldisc, enum FMT fmt) 48 { 49 struct cchar *p; 50 long tmp; 51 u_char *cc; 52 int cnt, ispeed, ospeed; 53 char buf1[100], buf2[100]; 54 55 cnt = 0; 56 57 /* Line discipline. */ 58 if (ldisc != TTYDISC) { 59 switch(ldisc) { 60 case SLIPDISC: 61 cnt += printf("slip disc; "); 62 break; 63 case PPPDISC: 64 cnt += printf("ppp disc; "); 65 break; 66 default: 67 cnt += printf("#%d disc; ", ldisc); 68 break; 69 } 70 } 71 72 /* Line speed. */ 73 ispeed = cfgetispeed(tp); 74 ospeed = cfgetospeed(tp); 75 if (ispeed != ospeed) 76 cnt += 77 printf("ispeed %d baud; ospeed %d baud;", ispeed, ospeed); 78 else 79 cnt += printf("speed %d baud;", ispeed); 80 if (fmt >= BSD) 81 cnt += printf(" %d rows; %d columns;", wp->ws_row, wp->ws_col); 82 if (cnt) 83 printf("\n"); 84 85 #define on(f) ((tmp & (f)) != 0) 86 #define put(n, f, d) \ 87 if (fmt >= BSD || on(f) != (d)) \ 88 bput((n) + on(f)); 89 90 /* "local" flags */ 91 tmp = tp->c_lflag; 92 binit("lflags"); 93 put("-icanon", ICANON, 1); 94 put("-isig", ISIG, 1); 95 put("-iexten", IEXTEN, 1); 96 put("-echo", ECHO, 1); 97 put("-echoe", ECHOE, 0); 98 put("-echok", ECHOK, 0); 99 put("-echoke", ECHOKE, 0); 100 put("-echonl", ECHONL, 0); 101 put("-echoctl", ECHOCTL, 0); 102 put("-echoprt", ECHOPRT, 0); 103 put("-altwerase", ALTWERASE, 0); 104 put("-noflsh", NOFLSH, 0); 105 put("-tostop", TOSTOP, 0); 106 put("-flusho", FLUSHO, 0); 107 put("-pendin", PENDIN, 0); 108 put("-nokerninfo", NOKERNINFO, 0); 109 put("-extproc", EXTPROC, 0); 110 111 /* input flags */ 112 tmp = tp->c_iflag; 113 binit("iflags"); 114 put("-istrip", ISTRIP, 0); 115 put("-icrnl", ICRNL, 1); 116 put("-inlcr", INLCR, 0); 117 put("-igncr", IGNCR, 0); 118 put("-ixon", IXON, 1); 119 put("-ixoff", IXOFF, 0); 120 put("-ixany", IXANY, 1); 121 put("-imaxbel", IMAXBEL, 1); 122 put("-ignbrk", IGNBRK, 0); 123 put("-brkint", BRKINT, 1); 124 put("-inpck", INPCK, 0); 125 put("-ignpar", IGNPAR, 0); 126 put("-parmrk", PARMRK, 0); 127 128 /* output flags */ 129 tmp = tp->c_oflag; 130 binit("oflags"); 131 put("-opost", OPOST, 1); 132 put("-onlcr", ONLCR, 1); 133 put("-ocrnl", OCRNL, 0); 134 put("-oxtabs", OXTABS, 1); 135 put("-onocr", OXTABS, 0); 136 put("-onlret", OXTABS, 0); 137 138 /* control flags (hardware state) */ 139 tmp = tp->c_cflag; 140 binit("cflags"); 141 put("-cread", CREAD, 1); 142 switch(tmp&CSIZE) { 143 case CS5: 144 bput("cs5"); 145 break; 146 case CS6: 147 bput("cs6"); 148 break; 149 case CS7: 150 bput("cs7"); 151 break; 152 case CS8: 153 bput("cs8"); 154 break; 155 } 156 bput("-parenb" + on(PARENB)); 157 put("-parodd", PARODD, 0); 158 put("-hupcl", HUPCL, 1); 159 put("-clocal", CLOCAL, 0); 160 put("-cstopb", CSTOPB, 0); 161 switch(tmp & (CCTS_OFLOW | CRTS_IFLOW)) { 162 case CCTS_OFLOW: 163 bput("ctsflow"); 164 break; 165 case CRTS_IFLOW: 166 bput("rtsflow"); 167 break; 168 default: 169 put("-crtscts", CCTS_OFLOW | CRTS_IFLOW, 0); 170 break; 171 } 172 put("-dsrflow", CDSR_OFLOW, 0); 173 put("-dtrflow", CDTR_IFLOW, 0); 174 put("-mdmbuf", MDMBUF, 0); /* XXX mdmbuf == dtrflow */ 175 176 /* special control characters */ 177 cc = tp->c_cc; 178 if (fmt == POSIX) { 179 binit("cchars"); 180 for (p = cchars1; p->name; ++p) { 181 snprintf(buf1, sizeof(buf1), "%s = %s;", 182 p->name, ccval(p, cc[p->sub])); 183 bput(buf1); 184 } 185 binit(NULL); 186 } else { 187 binit(NULL); 188 for (p = cchars1, cnt = 0; p->name; ++p) { 189 if (fmt != BSD && cc[p->sub] == p->def) 190 continue; 191 #define WD "%-8s" 192 snprintf(buf1 + cnt * 8, sizeof(buf1) - cnt * 8, 193 WD, p->name); 194 snprintf(buf2 + cnt * 8, sizeof(buf2) - cnt * 8, 195 WD, ccval(p, cc[p->sub])); 196 if (++cnt == LINELENGTH / 8) { 197 cnt = 0; 198 printf("%s\n", buf1); 199 printf("%s\n", buf2); 200 } 201 } 202 if (cnt) { 203 printf("%s\n", buf1); 204 printf("%s\n", buf2); 205 } 206 } 207 } 208 209 static int col; 210 static const char *label; 211 212 static void 213 binit(const char *lb) 214 { 215 216 if (col) { 217 printf("\n"); 218 col = 0; 219 } 220 label = lb; 221 } 222 223 static void 224 bput(const char *s) 225 { 226 227 if (col == 0) { 228 col = printf("%s: %s", label, s); 229 return; 230 } 231 if ((col + strlen(s)) > LINELENGTH) { 232 printf("\n\t"); 233 col = printf("%s", s) + 8; 234 return; 235 } 236 col += printf(" %s", s); 237 } 238 239 static const char * 240 ccval(struct cchar *p, int c) 241 { 242 static char buf[5]; 243 char *bp; 244 245 if (p->sub == VMIN || p->sub == VTIME) { 246 snprintf(buf, sizeof(buf), "%d", c); 247 return (buf); 248 } 249 if (c == _POSIX_VDISABLE) 250 return ("<undef>"); 251 bp = buf; 252 if (c & 0200) { 253 *bp++ = 'M'; 254 *bp++ = '-'; 255 c &= 0177; 256 } 257 if (c == 0177) { 258 *bp++ = '^'; 259 *bp++ = '?'; 260 } 261 else if (c < 040) { 262 *bp++ = '^'; 263 *bp++ = c + '@'; 264 } 265 else 266 *bp++ = c; 267 *bp = '\0'; 268 return (buf); 269 } 270