124 lines
3.9 KiB
C
124 lines
3.9 KiB
C
/*-
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* Copyright (c) 1991 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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/*static char sccsid[] = "from: @(#)cchar.c 5.4 (Berkeley) 6/10/91";*/
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static char rcsid[] = "$Id: cchar.c,v 1.6 1993/12/10 09:51:38 cgd Exp $";
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#endif /* not lint */
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#include <sys/types.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include "stty.h"
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#include "extern.h"
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/*
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* Special control characters.
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*
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* Cchars1 are the standard names, cchars2 are the old aliases.
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* The first are displayed, but both are recognized on the
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* command line.
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*/
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struct cchar cchars1[] = {
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"discard", VDISCARD, CDISCARD,
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"dsusp", VDSUSP, CDSUSP,
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"eof", VEOF, CEOF,
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"eol", VEOL, CEOL,
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"eol2", VEOL2, CEOL,
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"erase", VERASE, CERASE,
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"intr", VINTR, CINTR,
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"kill", VKILL, CKILL,
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"lnext", VLNEXT, CLNEXT,
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"quit", VQUIT, CQUIT,
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"reprint", VREPRINT, CREPRINT,
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"start", VSTART, CSTART,
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"status", VSTATUS, CSTATUS,
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"stop", VSTOP, CSTOP,
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"susp", VSUSP, CSUSP,
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"werase", VWERASE, CWERASE,
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NULL,
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};
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struct cchar cchars2[] = {
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"brk", VEOL, CEOL,
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"flush", VDISCARD, CDISCARD,
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"rprnt", VREPRINT, CREPRINT,
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"xoff", VSTOP, CSTOP,
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"xon", VSTART, CSTART,
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NULL,
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};
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csearch(argvp, ip)
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char ***argvp;
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struct info *ip;
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{
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extern char *usage;
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register struct cchar *cp;
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struct cchar tmp;
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char *arg, *name;
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static int c_cchar __P((const void *, const void *));
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name = **argvp;
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tmp.name = name;
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if (!(cp = (struct cchar *)bsearch(&tmp, cchars1,
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sizeof(cchars1)/sizeof(struct cchar) - 1, sizeof(struct cchar),
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c_cchar)) && !(cp = (struct cchar *)bsearch(&tmp, cchars1,
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sizeof(cchars1)/sizeof(struct cchar) - 1, sizeof(struct cchar),
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c_cchar)))
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return(0);
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arg = *++*argvp;
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if (!arg)
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err("option requires an argument -- %s\n%s", name, usage);
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#define CHK(s) (*arg == s[0] && !strcmp(arg, s))
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if (CHK("undef") || CHK("<undef>"))
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ip->t.c_cc[cp->sub] = _POSIX_VDISABLE;
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else if (arg[0] == '^')
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ip->t.c_cc[cp->sub] = (arg[1] == '?') ? 0177 :
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(arg[1] == '-') ? _POSIX_VDISABLE : arg[1] & 037;
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else
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ip->t.c_cc[cp->sub] = arg[0];
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ip->set = 1;
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return(1);
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}
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static
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c_cchar(a, b)
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const void *a, *b;
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{
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return(strcmp(((struct cchar *)a)->name, ((struct cchar *)b)->name));
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}
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