diff options
Diffstat (limited to 'print.c')
| -rw-r--r-- | print.c | 284 |
1 files changed, 284 insertions, 0 deletions
@@ -0,0 +1,284 @@ +/*- + * Copyright (c) 1991, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)print.c 8.6 (Berkeley) 4/16/94"; +#endif +#endif /* not lint */ + +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> + +#include "stty.h" +#include "extern.h" + +#include <sys/ioctl.h> /* XXX NTTYDISC is too well hidden */ + +static void binit(const char *); +static void bput(const char *); +static const char *ccval(struct cchar *, int); + +void +print(struct termios *tp, struct winsize *wp, int ldisc, enum FMT fmt) +{ + struct cchar *p; + long tmp; + u_char *cc; + int cnt, ispeed, ospeed; + char buf1[100], buf2[100]; + + cnt = 0; + + /* Line discipline. */ + if (ldisc != TTYDISC) { + switch(ldisc) { + case NTTYDISC: + cnt += printf("new tty disc; "); + break; + case SLIPDISC: + cnt += printf("slip disc; "); + break; + case PPPDISC: + cnt += printf("ppp disc; "); + break; + default: + cnt += printf("#%d disc; ", ldisc); + break; + } + } + + /* Line speed. */ + ispeed = cfgetispeed(tp); + ospeed = cfgetospeed(tp); + if (ispeed != ospeed) + cnt += + printf("ispeed %d baud; ospeed %d baud;", ispeed, ospeed); + else + cnt += printf("speed %d baud;", ispeed); + if (fmt >= BSD) + cnt += printf(" %d rows; %d columns;", wp->ws_row, wp->ws_col); + if (cnt) + (void)printf("\n"); + +#define on(f) ((tmp & (f)) != 0) +#define put(n, f, d) \ + if (fmt >= BSD || on(f) != (d)) \ + bput((n) + on(f)); + + /* "local" flags */ + tmp = tp->c_lflag; + binit("lflags"); + put("-icanon", ICANON, 1); + put("-isig", ISIG, 1); + put("-iexten", IEXTEN, 1); + put("-echo", ECHO, 1); + put("-echoe", ECHOE, 0); + put("-echok", ECHOK, 0); + put("-echoke", ECHOKE, 0); + put("-echonl", ECHONL, 0); + put("-echoctl", ECHOCTL, 0); + put("-echoprt", ECHOPRT, 0); + put("-altwerase", ALTWERASE, 0); + put("-noflsh", NOFLSH, 0); + put("-tostop", TOSTOP, 0); + put("-flusho", FLUSHO, 0); + put("-pendin", PENDIN, 0); + put("-nokerninfo", NOKERNINFO, 0); + put("-extproc", EXTPROC, 0); + + /* input flags */ + tmp = tp->c_iflag; + binit("iflags"); + put("-istrip", ISTRIP, 0); + put("-icrnl", ICRNL, 1); + put("-inlcr", INLCR, 0); + put("-igncr", IGNCR, 0); + put("-ixon", IXON, 1); + put("-ixoff", IXOFF, 0); + put("-ixany", IXANY, 1); + put("-imaxbel", IMAXBEL, 1); + put("-iutf8", IUTF8, 0); + put("-ignbrk", IGNBRK, 0); + put("-brkint", BRKINT, 1); + put("-inpck", INPCK, 0); + put("-ignpar", IGNPAR, 0); + put("-parmrk", PARMRK, 0); + + /* output flags */ + tmp = tp->c_oflag; + binit("oflags"); + put("-opost", OPOST, 1); + put("-onlcr", ONLCR, 1); +#ifndef __APPLE__ + put("-ocrnl", OCRNL, 0); +#endif + put("-oxtabs", OXTABS, 1); + put("-onocr", OXTABS, 0); + put("-onlret", OXTABS, 0); + + /* control flags (hardware state) */ + tmp = tp->c_cflag; + binit("cflags"); + put("-cread", CREAD, 1); + switch(tmp&CSIZE) { + case CS5: + bput("cs5"); + break; + case CS6: + bput("cs6"); + break; + case CS7: + bput("cs7"); + break; + case CS8: + bput("cs8"); + break; + } + bput("-parenb" + on(PARENB)); + put("-parodd", PARODD, 0); + put("-hupcl", HUPCL, 1); + put("-clocal", CLOCAL, 0); + put("-cstopb", CSTOPB, 0); + switch(tmp & (CCTS_OFLOW | CRTS_IFLOW)) { + case CCTS_OFLOW: + bput("ctsflow"); + break; + case CRTS_IFLOW: + bput("rtsflow"); + break; + default: + put("-crtscts", CCTS_OFLOW | CRTS_IFLOW, 0); + break; + } + put("-dsrflow", CDSR_OFLOW, 0); + put("-dtrflow", CDTR_IFLOW, 0); + put("-mdmbuf", MDMBUF, 0); /* XXX mdmbuf == dtrflow */ + + /* special control characters */ + cc = tp->c_cc; + if (fmt == POSIX) { + binit("cchars"); + for (p = cchars1; p->name; ++p) { + (void)snprintf(buf1, sizeof(buf1), "%s = %s;", + p->name, ccval(p, cc[p->sub])); + bput(buf1); + } + binit(NULL); + } else { + binit(NULL); + for (p = cchars1, cnt = 0; p->name; ++p) { + if (fmt != BSD && cc[p->sub] == p->def) + continue; +#define WD "%-8s" + (void)snprintf(buf1 + cnt * 8, sizeof(buf1) - cnt * 8, + WD, p->name); + (void)snprintf(buf2 + cnt * 8, sizeof(buf2) - cnt * 8, + WD, ccval(p, cc[p->sub])); + if (++cnt == LINELENGTH / 8) { + cnt = 0; + (void)printf("%s\n", buf1); + (void)printf("%s\n", buf2); + } + } + if (cnt) { + (void)printf("%s\n", buf1); + (void)printf("%s\n", buf2); + } + } +} + +static int col; +static const char *label; + +static void +binit(const char *lb) +{ + + if (col) { + (void)printf("\n"); + col = 0; + } + label = lb; +} + +static void +bput(const char *s) +{ + + if (col == 0) { + col = printf("%s: %s", label, s); + return; + } + if ((col + strlen(s)) > LINELENGTH) { + (void)printf("\n\t"); + col = printf("%s", s) + 8; + return; + } + col += printf(" %s", s); +} + +static const char * +ccval(struct cchar *p, int c) +{ + static char buf[5]; + char *bp; + + if (p->sub == VMIN || p->sub == VTIME) { + (void)snprintf(buf, sizeof(buf), "%d", c); + return (buf); + } + if (c == _POSIX_VDISABLE) + return ("<undef>"); + bp = buf; + if (c & 0200) { + *bp++ = 'M'; + *bp++ = '-'; + c &= 0177; + } + if (c == 0177) { + *bp++ = '^'; + *bp++ = '?'; + } + else if (c < 040) { + *bp++ = '^'; + *bp++ = c + '@'; + } + else + *bp++ = c; + *bp = '\0'; + return (buf); +} |