print.c revision 99110
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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35#if 0 36static char sccsid[] = "@(#)print.c 8.6 (Berkeley) 4/16/94"; 37#endif 38#endif /* not lint */ 39#include <sys/cdefs.h> 40__FBSDID("$FreeBSD: head/bin/stty/print.c 99110 2002-06-30 05:15:05Z obrien $"); 41 42#include <sys/types.h> 43 44#include <stddef.h> 45#include <stdio.h> 46#include <string.h> 47 48#include "stty.h" 49#include "extern.h" 50 51#include <sys/ioctl_compat.h> /* XXX NTTYDISC is too well hidden */ 52 53static void binit(const char *); 54static void bput(const char *); 55static const char *ccval(struct cchar *, int); 56 57void 58print(struct termios *tp, struct winsize *wp, int ldisc, enum FMT fmt) 59{ 60 struct cchar *p; 61 long tmp; 62 u_char *cc; 63 int cnt, ispeed, ospeed; 64 char buf1[100], buf2[100]; 65 66 cnt = 0; 67 68 /* Line discipline. */ 69 if (ldisc != TTYDISC) { 70 switch(ldisc) { 71 case NTTYDISC: 72 cnt += printf("new tty disc; "); 73 break; 74 case SLIPDISC: 75 cnt += printf("slip disc; "); 76 break; 77 case PPPDISC: 78 cnt += printf("ppp disc; "); 79 break; 80 default: 81 cnt += printf("#%d disc; ", ldisc); 82 break; 83 } 84 } 85 86 /* Line speed. */ 87 ispeed = cfgetispeed(tp); 88 ospeed = cfgetospeed(tp); 89 if (ispeed != ospeed) 90 cnt += 91 printf("ispeed %d baud; ospeed %d baud;", ispeed, ospeed); 92 else 93 cnt += printf("speed %d baud;", ispeed); 94 if (fmt >= BSD) 95 cnt += printf(" %d rows; %d columns;", wp->ws_row, wp->ws_col); 96 if (cnt) 97 (void)printf("\n"); 98 99#define on(f) ((tmp & (f)) != 0) 100#define put(n, f, d) \ 101 if (fmt >= BSD || on(f) != (d)) \ 102 bput((n) + on(f)); 103 104 /* "local" flags */ 105 tmp = tp->c_lflag; 106 binit("lflags"); 107 put("-icanon", ICANON, 1); 108 put("-isig", ISIG, 1); 109 put("-iexten", IEXTEN, 1); 110 put("-echo", ECHO, 1); 111 put("-echoe", ECHOE, 0); 112 put("-echok", ECHOK, 0); 113 put("-echoke", ECHOKE, 0); 114 put("-echonl", ECHONL, 0); 115 put("-echoctl", ECHOCTL, 0); 116 put("-echoprt", ECHOPRT, 0); 117 put("-altwerase", ALTWERASE, 0); 118 put("-noflsh", NOFLSH, 0); 119 put("-tostop", TOSTOP, 0); 120 put("-flusho", FLUSHO, 0); 121 put("-pendin", PENDIN, 0); 122 put("-nokerninfo", NOKERNINFO, 0); 123 put("-extproc", EXTPROC, 0); 124 125 /* input flags */ 126 tmp = tp->c_iflag; 127 binit("iflags"); 128 put("-istrip", ISTRIP, 0); 129 put("-icrnl", ICRNL, 1); 130 put("-inlcr", INLCR, 0); 131 put("-igncr", IGNCR, 0); 132 put("-ixon", IXON, 1); 133 put("-ixoff", IXOFF, 0); 134 put("-ixany", IXANY, 1); 135 put("-imaxbel", IMAXBEL, 1); 136 put("-ignbrk", IGNBRK, 0); 137 put("-brkint", BRKINT, 1); 138 put("-inpck", INPCK, 0); 139 put("-ignpar", IGNPAR, 0); 140 put("-parmrk", PARMRK, 0); 141 142 /* output flags */ 143 tmp = tp->c_oflag; 144 binit("oflags"); 145 put("-opost", OPOST, 1); 146 put("-onlcr", ONLCR, 1); 147 put("-ocrnl", OCRNL, 0); 148 put("-oxtabs", OXTABS, 1); 149 put("-onocr", OXTABS, 0); 150 put("-onlret", OXTABS, 0); 151 152 /* control flags (hardware state) */ 153 tmp = tp->c_cflag; 154 binit("cflags"); 155 put("-cread", CREAD, 1); 156 switch(tmp&CSIZE) { 157 case CS5: 158 bput("cs5"); 159 break; 160 case CS6: 161 bput("cs6"); 162 break; 163 case CS7: 164 bput("cs7"); 165 break; 166 case CS8: 167 bput("cs8"); 168 break; 169 } 170 bput("-parenb" + on(PARENB)); 171 put("-parodd", PARODD, 0); 172 put("-hupcl", HUPCL, 1); 173 put("-clocal", CLOCAL, 0); 174 put("-cstopb", CSTOPB, 0); 175 switch(tmp & (CCTS_OFLOW | CRTS_IFLOW)) { 176 case CCTS_OFLOW: 177 bput("ctsflow"); 178 break; 179 case CRTS_IFLOW: 180 bput("rtsflow"); 181 break; 182 default: 183 put("-crtscts", CCTS_OFLOW | CRTS_IFLOW, 0); 184 break; 185 } 186 put("-dsrflow", CDSR_OFLOW, 0); 187 put("-dtrflow", CDTR_IFLOW, 0); 188 put("-mdmbuf", MDMBUF, 0); /* XXX mdmbuf == dtrflow */ 189 190 /* special control characters */ 191 cc = tp->c_cc; 192 if (fmt == POSIX) { 193 binit("cchars"); 194 for (p = cchars1; p->name; ++p) { 195 (void)snprintf(buf1, sizeof(buf1), "%s = %s;", 196 p->name, ccval(p, cc[p->sub])); 197 bput(buf1); 198 } 199 binit(NULL); 200 } else { 201 binit(NULL); 202 for (p = cchars1, cnt = 0; p->name; ++p) { 203 if (fmt != BSD && cc[p->sub] == p->def) 204 continue; 205#define WD "%-8s" 206 (void)snprintf(buf1 + cnt * 8, sizeof(buf1) - cnt * 8, 207 WD, p->name); 208 (void)snprintf(buf2 + cnt * 8, sizeof(buf2) - cnt * 8, 209 WD, ccval(p, cc[p->sub])); 210 if (++cnt == LINELENGTH / 8) { 211 cnt = 0; 212 (void)printf("%s\n", buf1); 213 (void)printf("%s\n", buf2); 214 } 215 } 216 if (cnt) { 217 (void)printf("%s\n", buf1); 218 (void)printf("%s\n", buf2); 219 } 220 } 221} 222 223static int col; 224static const char *label; 225 226static void 227binit(const char *lb) 228{ 229 230 if (col) { 231 (void)printf("\n"); 232 col = 0; 233 } 234 label = lb; 235} 236 237static void 238bput(const char *s) 239{ 240 241 if (col == 0) { 242 col = printf("%s: %s", label, s); 243 return; 244 } 245 if ((col + strlen(s)) > LINELENGTH) { 246 (void)printf("\n\t"); 247 col = printf("%s", s) + 8; 248 return; 249 } 250 col += printf(" %s", s); 251} 252 253static const char * 254ccval(struct cchar *p, int c) 255{ 256 static char buf[5]; 257 char *bp; 258 259 if (p->sub == VMIN || p->sub == VTIME) { 260 (void)snprintf(buf, sizeof(buf), "%d", c); 261 return (buf); 262 } 263 if (c == _POSIX_VDISABLE) 264 return ("<undef>"); 265 bp = buf; 266 if (c & 0200) { 267 *bp++ = 'M'; 268 *bp++ = '-'; 269 c &= 0177; 270 } 271 if (c == 0177) { 272 *bp++ = '^'; 273 *bp++ = '?'; 274 } 275 else if (c < 040) { 276 *bp++ = '^'; 277 *bp++ = c + '@'; 278 } 279 else 280 *bp++ = c; 281 *bp = '\0'; 282 return (buf); 283} 284