Annotation of sys/lib/libsa/gets.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: gets.c,v 1.4 2003/08/11 06:23:09 deraadt Exp $ */
2: /* $NetBSD: gets.c,v 1.5.2.1 1995/10/13 19:54:26 pk Exp $ */
3:
4: /*-
5: * Copyright (c) 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the University nor the names of its contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
32: * @(#)gets.c 8.1 (Berkeley) 6/11/93
33: */
34:
35: #include "stand.h"
36:
37: void
38: gets(char *buf)
39: {
40: int c;
41: char *lp;
42:
43: for (lp = buf;;)
44: switch (c = getchar() & 0177) {
45: case '\n':
46: case '\r':
47: *lp = '\0';
48: putchar('\n');
49: return;
50: case '\b':
51: case '\177':
52: if (lp > buf) {
53: lp--;
54: putchar('\b');
55: putchar(' ');
56: putchar('\b');
57: }
58: break;
59: #if HASH_ERASE
60: case '#':
61: if (lp > buf)
62: --lp;
63: break;
64: #endif
65: case 'r'&037: {
66: char *p;
67:
68: putchar('\n');
69: for (p = buf; p < lp; ++p)
70: putchar(*p);
71: break;
72: }
73: #if AT_ERASE
74: case '@':
75: #endif
76: case 'u'&037:
77: case 'w'&037:
78: lp = buf;
79: putchar('\n');
80: break;
81: default:
82: *lp++ = c;
83: putchar(c);
84: }
85: /*NOTREACHED*/
86: }
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