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- /*-
- * Copyright (c) 1991 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
- static char sccsid[] = "@(#)cchar.c 5.4 (Berkeley) 6/10/91";
- #endif /* not lint */
-
- #include <sys/types.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.
- */
- 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,
- "quit", VQUIT, CQUIT,
- "reprint", VREPRINT, CREPRINT,
- "start", VSTART, CSTART,
- "status", VSTATUS, CSTATUS,
- "stop", VSTOP, CSTOP,
- "susp", VSUSP, CSUSP,
- "werase", VWERASE, CWERASE,
- NULL,
- };
-
- struct cchar cchars2[] = {
- "brk", VEOL, CEOL,
- "flush", VDISCARD, CDISCARD,
- "rprnt", VREPRINT, CREPRINT,
- "xoff", VSTOP, CSTOP,
- "xon", VSTART, CSTART,
- NULL,
- };
-
- csearch(argvp, ip)
- char ***argvp;
- struct info *ip;
- {
- extern char *usage;
- register struct cchar *cp;
- struct cchar tmp;
- char *arg, *name;
- static int c_cchar __P((const void *, const void *));
-
- 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, cchars1,
- sizeof(cchars1)/sizeof(struct cchar) - 1, sizeof(struct cchar),
- c_cchar)))
- return(0);
-
- arg = *++*argvp;
- if (!arg)
- err("option requires an argument -- %s\n%s", name, usage);
-
- #define CHK(s) (*name == s[0] && !strcmp(name, s))
- if (CHK("undef") || CHK("<undef>"))
- ip->t.c_cc[cp->sub] = _POSIX_VDISABLE;
- 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);
- }
-
- static
- c_cchar(a, b)
- const void *a, *b;
- {
- return(strcmp(((struct cchar *)a)->name, ((struct cchar *)b)->name));
- }
-