util.h revision 1.3 
1/*	$OpenBSD: util.h,v 1.3 2002/05/24 03:44:37 deraadt Exp $	*/
2
3/*
4 * Copyright (c) 1998 Per Fogelstrom, Opsycon AB
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *	This product includes software developed under OpenBSD by
17 *	Per Fogelstrom, Opsycon AB, Sweden.
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
22 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 */
34
35#ifndef __DL_UTIL_H__
36#define __DL_UTIL_H__
37int _dl_write __P((int, const char *, int));
38void *_dl_malloc(const int size);
39void _dl_free(void *);
40char *_dl_strdup(const char *);
41void _dl_printf(const char *fmt, ...);
42
43/*
44 *	The following functions are declared inline so they can
45 *	be used before bootstrap linking has been finished.
46 */
47static inline void
48_dl_wrstderr(const char *s)
49{
50	while (*s) {
51		_dl_write(2, s, 1);
52		s++;
53	}
54}
55
56static inline void *
57_dl_memset(void *p, const char v, size_t c)
58{
59	char *ip = p;
60
61	while (c--)
62		*ip++ = v;
63	return(p);
64}
65
66static inline int
67_dl_strlen(const char *p)
68{
69	const char *s = p;
70
71	while (*s != '\0')
72		s++;
73	return(s - p);
74}
75
76static inline char *
77_dl_strcpy(char *d, const char *s)
78{
79	char *rd = d;
80
81	while ((*d++ = *s++) != '\0')
82		;
83	return(rd);
84}
85
86static inline int
87_dl_strncmp(const char *d, const char *s, int c)
88{
89	while (c-- && *d && *d == *s) {
90		d++;
91		s++;
92	}
93	if (c < 0)
94		return(0);
95	return(*d - *s);
96}
97
98static inline int
99_dl_strcmp(const char *d, const char *s)
100{
101	while (*d && *d == *s) {
102		d++;
103		s++;
104	}
105	return(*d - *s);
106}
107
108static inline const char *
109_dl_strchr(const char *p, const int c)
110{
111	while (*p) {
112		if (*p == c)
113			return(p);
114		p++;
115	}
116	return(0);
117}
118
119#endif /*__DL_UTIL_H__*/
120