2 * Copyright (c) 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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9 * notice, this list of conditions and the following disclaimer.
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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.
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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33 * @(#)cchar.c 8.5 (Berkeley) 4/2/94
34 * $FreeBSD: src/bin/stty/cchar.c,v 1.9.2.2 2001/07/04 22:40:00 kris Exp $
35 * $DragonFly: src/bin/stty/cchar.c,v 1.2 2003/06/17 04:22:50 dillon Exp $
38 #include <sys/types.h>
49 static int c_cchar __P((const void *, const void *));
52 * Special control characters.
54 * Cchars1 are the standard names, cchars2 are the old aliases.
55 * The first are displayed, but both are recognized on the
58 struct cchar cchars1[] = {
59 { "discard", VDISCARD, CDISCARD },
60 { "dsusp", VDSUSP, CDSUSP },
61 { "eof", VEOF, CEOF },
62 { "eol", VEOL, CEOL },
63 { "eol2", VEOL2, CEOL },
64 { "erase", VERASE, CERASE },
65 { "erase2", VERASE2, CERASE2 },
66 { "intr", VINTR, CINTR },
67 { "kill", VKILL, CKILL },
68 { "lnext", VLNEXT, CLNEXT },
69 { "min", VMIN, CMIN },
70 { "quit", VQUIT, CQUIT },
71 { "reprint", VREPRINT, CREPRINT },
72 { "start", VSTART, CSTART },
73 { "status", VSTATUS, CSTATUS },
74 { "stop", VSTOP, CSTOP },
75 { "susp", VSUSP, CSUSP },
76 { "time", VTIME, CTIME },
77 { "werase", VWERASE, CWERASE },
81 struct cchar cchars2[] = {
82 { "brk", VEOL, CEOL },
83 { "flush", VDISCARD, CDISCARD },
84 { "rprnt", VREPRINT, CREPRINT },
93 return (strcmp(((const struct cchar *)a)->name, ((const struct cchar *)b)->name));
101 struct cchar *cp, tmp;
103 char *arg, *ep, *name;
108 if (!(cp = (struct cchar *)bsearch(&tmp, cchars1,
109 sizeof(cchars1)/sizeof(struct cchar) - 1, sizeof(struct cchar),
110 c_cchar)) && !(cp = (struct cchar *)bsearch(&tmp, cchars2,
111 sizeof(cchars2)/sizeof(struct cchar) - 1, sizeof(struct cchar),
117 warnx("option requires an argument -- %s", name);
121 #define CHK(s) (*arg == s[0] && !strcmp(arg, s))
122 if (CHK("undef") || CHK("<undef>"))
123 ip->t.c_cc[cp->sub] = _POSIX_VDISABLE;
124 else if (cp->sub == VMIN || cp->sub == VTIME) {
125 val = strtol(arg, &ep, 10);
126 if (val > UCHAR_MAX) {
127 warnx("maximum option value is %d -- %s",
132 warnx("option requires a numeric argument -- %s", name);
135 ip->t.c_cc[cp->sub] = val;
136 } else if (arg[0] == '^')
137 ip->t.c_cc[cp->sub] = (arg[1] == '?') ? 0177 :
138 (arg[1] == '-') ? _POSIX_VDISABLE : arg[1] & 037;
140 ip->t.c_cc[cp->sub] = arg[0];