/* $OpenBSD: cchar.c,v 1.10 2003/06/11 23:42:12 deraadt Exp $ */ /* $NetBSD: cchar.c,v 1.10 1996/05/07 18:20:05 jtc Exp $ */ /*- * 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. 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[] = "@(#)cchar.c 8.5 (Berkeley) 4/2/94"; #else static char rcsid[] = "$OpenBSD: cchar.c,v 1.10 2003/06/11 23:42:12 deraadt Exp $"; #endif #endif /* not lint */ #include <sys/types.h> #include <err.h> #include <limits.h> #include <stddef.h> #include <stdlib.h> #include <string.h> #include "stty.h" #include "extern.h" /* * Special control characters. * * Cchars1 are the standard names, cchars2 are the old aliases. * The first are displayed, but both are recognized on the * command line. */ const struct cchar cchars1[] = { { "discard", VDISCARD, CDISCARD }, { "dsusp", VDSUSP, CDSUSP }, { "eof", VEOF, CEOF }, { "eol", VEOL, CEOL }, { "eol2", VEOL2, CEOL }, { "erase", VERASE, CERASE }, { "intr", VINTR, CINTR }, { "kill", VKILL, CKILL }, { "lnext", VLNEXT, CLNEXT }, { "min", VMIN, CMIN }, { "quit", VQUIT, CQUIT }, { "reprint", VREPRINT, CREPRINT }, { "start", VSTART, CSTART }, { "status", VSTATUS, CSTATUS }, { "stop", VSTOP, CSTOP }, { "susp", VSUSP, CSUSP }, { "time", VTIME, CTIME }, { "werase", VWERASE, CWERASE }, { NULL }, }; const struct cchar cchars2[] = { { "brk", VEOL, CEOL }, { "flush", VDISCARD, CDISCARD }, { "rprnt", VREPRINT, CREPRINT }, { NULL }, }; static int c_cchar(const void *a, const void *b) { return (strcmp(((struct cchar *)a)->name, ((struct cchar *)b)->name)); } int csearch(char ***argvp, struct info *ip) { struct cchar *cp, tmp; long val; char *arg, *ep, *name; name = **argvp; tmp.name = name; if (!(cp = (struct cchar *)bsearch(&tmp, cchars1, sizeof(cchars1)/sizeof(struct cchar) - 1, sizeof(struct cchar), c_cchar)) && !(cp = (struct cchar *)bsearch(&tmp, cchars2, sizeof(cchars2)/sizeof(struct cchar) - 1, sizeof(struct cchar), c_cchar))) return (0); arg = *++*argvp; if (!arg) { warnx("option requires an argument -- %s", name); usage(); } #define CHK(s) (*arg == s[0] && !strcmp(arg, s)) if (CHK("undef") || CHK("<undef>")) ip->t.c_cc[cp->sub] = _POSIX_VDISABLE; else if (cp->sub == VMIN || cp->sub == VTIME) { val = strtol(arg, &ep, 10); if (val > UCHAR_MAX || val < 0) { warnx("maximum option value is %d -- %s", UCHAR_MAX, name); usage(); } if (*ep != '\0') { warnx("option requires a numeric argument -- %s", name); usage(); } ip->t.c_cc[cp->sub] = val; } else if (arg[0] == '^') ip->t.c_cc[cp->sub] = (arg[1] == '?') ? 0177 : (arg[1] == '-') ? _POSIX_VDISABLE : arg[1] & 037; else ip->t.c_cc[cp->sub] = arg[0]; ip->set = 1; return (1); }