1/* $OpenBSD: print.c,v 1.16 2017/04/28 22:16:43 millert Exp $ */ 2/* $NetBSD: print.c,v 1.11 1996/05/07 18:20:10 jtc Exp $ */ 3 4/*- 5 * Copyright (c) 1991, 1993, 1994 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#include <sys/types.h> 34 35#include <stddef.h> 36#include <stdio.h> 37#include <string.h> 38#include <termios.h> 39 40#include "stty.h" 41#include "extern.h" 42 43static void binit(char *); 44static void bput(const char *, unsigned int); 45static char *ccval(const struct cchar *, int); 46 47void 48print(struct termios *tp, struct winsize *wp, int ldisc, enum FMT fmt) 49{ 50 const struct cchar *p; 51 long tmp; 52 u_char *cc; 53 int cnt, ispeed, ospeed; 54 char buf1[100], buf2[100]; 55 56 cnt = 0; 57 58 /* Line discipline. */ 59 if (ldisc != TTYDISC) { 60 switch(ldisc) { 61 case PPPDISC: 62 cnt += printf("ppp disc; "); 63 break; 64 case NMEADISC: 65 cnt += printf("nmea disc; "); 66 break; 67 default: 68 cnt += printf("#%d disc; ", ldisc); 69 break; 70 } 71 } 72 73 /* Line speed. */ 74 ispeed = cfgetispeed(tp); 75 ospeed = cfgetospeed(tp); 76 if (ispeed != ospeed) 77 cnt += 78 printf("ispeed %d baud; ospeed %d baud;", ispeed, ospeed); 79 else 80 cnt += printf("speed %d baud;", ispeed); 81 if (fmt >= BSD) 82 cnt += printf(" %d rows; %d columns;", wp->ws_row, wp->ws_col); 83 if (cnt) 84 (void)printf("\n"); 85 86#define on(f) ((tmp&f) != 0) 87#define put(n, f, d) \ 88 if (fmt >= BSD || on(f) != d) \ 89 bput(n, on(f)); 90 91 /* "local" flags */ 92 tmp = tp->c_lflag; 93 binit("lflags"); 94 put("-icanon", ICANON, 1); 95 put("-isig", ISIG, 1); 96 put("-iexten", IEXTEN, 1); 97 put("-echo", ECHO, 1); 98 put("-echoe", ECHOE, 0); 99 put("-echok", ECHOK, 0); 100 put("-echoke", ECHOKE, 0); 101 put("-echonl", ECHONL, 0); 102 put("-echoctl", ECHOCTL, 0); 103 put("-echoprt", ECHOPRT, 0); 104 put("-altwerase", ALTWERASE, 0); 105 put("-noflsh", NOFLSH, 0); 106 put("-tostop", TOSTOP, 0); 107 put("-flusho", FLUSHO, 0); 108 put("-pendin", PENDIN, 0); 109 put("-nokerninfo", NOKERNINFO, 0); 110 put("-extproc", EXTPROC, 0); 111 put("-xcase", XCASE, 0); 112 113 /* input flags */ 114 tmp = tp->c_iflag; 115 binit("iflags"); 116 put("-istrip", ISTRIP, 0); 117 put("-icrnl", ICRNL, 1); 118 put("-inlcr", INLCR, 0); 119 put("-igncr", IGNCR, 0); 120 put("-iuclc", IUCLC, 0); 121 put("-ixon", IXON, 1); 122 put("-ixoff", IXOFF, 0); 123 put("-ixany", IXANY, 1); 124 put("-imaxbel", IMAXBEL, 1); 125 put("-ignbrk", IGNBRK, 0); 126 put("-brkint", BRKINT, 1); 127 put("-inpck", INPCK, 0); 128 put("-ignpar", IGNPAR, 0); 129 put("-parmrk", PARMRK, 0); 130 131 /* output flags */ 132 tmp = tp->c_oflag; 133 binit("oflags"); 134 put("-opost", OPOST, 1); 135 put("-onlcr", ONLCR, 1); 136 put("-ocrnl", OCRNL, 0); 137 put("-onocr", ONOCR, 0); 138 put("-onlret", ONLRET, 0); 139 put("-olcuc", OLCUC, 0); 140 put("-oxtabs", OXTABS, 1); 141 put("-onoeot", ONOEOT, 0); 142 143 /* control flags (hardware state) */ 144 tmp = tp->c_cflag; 145 binit("cflags"); 146 put("-cread", CREAD, 1); 147 switch(tmp&CSIZE) { 148 case CS5: 149 bput("cs5", 0); 150 break; 151 case CS6: 152 bput("cs6", 0); 153 break; 154 case CS7: 155 bput("cs7", 0); 156 break; 157 case CS8: 158 bput("cs8", 0); 159 break; 160 } 161 bput("-parenb", on(PARENB)); 162 put("-parodd", PARODD, 0); 163 put("-hupcl", HUPCL, 1); 164 put("-clocal", CLOCAL, 0); 165 put("-cstopb", CSTOPB, 0); 166 put("-crtscts", CRTSCTS, 0); 167 put("-mdmbuf", MDMBUF, 0); 168 169 /* special control characters */ 170 cc = tp->c_cc; 171 if (fmt == POSIX) { 172 binit("cchars"); 173 for (p = cchars1; p->name; ++p) { 174 (void)snprintf(buf1, sizeof(buf1), "%s = %s;", 175 p->name, ccval(p, cc[p->sub])); 176 bput(buf1, 0); 177 } 178 binit(NULL); 179 } else { 180 binit(NULL); 181 for (p = cchars1, cnt = 0; p->name; ++p) { 182 if (fmt != BSD && cc[p->sub] == p->def) 183 continue; 184#define WD "%-8s" 185 (void)snprintf(buf1 + cnt * 8, sizeof(buf1) - cnt * 8, 186 WD, p->name); 187 (void)snprintf(buf2 + cnt * 8, sizeof(buf2) - cnt * 8, 188 WD, ccval(p, cc[p->sub])); 189 if (++cnt == LINELENGTH / 8) { 190 cnt = 0; 191 (void)printf("%s\n", buf1); 192 (void)printf("%s\n", buf2); 193 } 194 } 195 if (cnt) { 196 (void)printf("%s\n", buf1); 197 (void)printf("%s\n", buf2); 198 } 199 } 200} 201 202static int col; 203static char *label; 204 205static void 206binit(char *lb) 207{ 208 209 if (col) { 210 (void)printf("\n"); 211 col = 0; 212 } 213 label = lb; 214} 215 216static void 217bput(const char *s, unsigned int off) 218{ 219 s += off; 220 221 if (col == 0) { 222 col = printf("%s: %s", label, s); 223 return; 224 } 225 if ((col + strlen(s)) > LINELENGTH) { 226 (void)printf("\n\t"); 227 col = printf("%s", s) + 8; 228 return; 229 } 230 col += printf(" %s", s); 231} 232 233static char * 234ccval(const struct cchar *p, int c) 235{ 236 static char buf[5]; 237 char *bp; 238 239 if (p->sub == VMIN || p->sub == VTIME) { 240 (void)snprintf(buf, sizeof(buf), "%d", c); 241 return (buf); 242 } 243 if (c == _POSIX_VDISABLE) 244 return ("<undef>"); 245 bp = buf; 246 if (c & 0200) { 247 *bp++ = 'M'; 248 *bp++ = '-'; 249 c &= 0177; 250 } 251 if (c == 0177) { 252 *bp++ = '^'; 253 *bp++ = '?'; 254 } 255 else if (c < 040) { 256 *bp++ = '^'; 257 *bp++ = c + '@'; 258 } 259 else 260 *bp++ = c; 261 *bp = '\0'; 262 return (buf); 263} 264