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1/* $OpenBSD: string.h,v 1.34 2024/08/03 20:13:23 guenther Exp $ */
2/* $NetBSD: string.h,v 1.6 1994/10/26 00:56:30 cgd Exp $ */
3
4/*-
5 * Copyright (c) 1990 The Regents of the University of California.
6 * 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 * @(#)string.h 5.10 (Berkeley) 3/9/91
33 */
34
35#ifndef _STRING_H_
36#define _STRING_H_
37
38#include <sys/cdefs.h>
39#include <sys/_null.h>
40#include <sys/_types.h>
41
42/*
43 * POSIX mandates that certain string functions not present in ISO C
44 * be prototyped in strings.h. Historically, we've included them here.
45 */
46#if __BSD_VISIBLE
47#include <strings.h>
48#endif
49
50#ifndef _SIZE_T_DEFINED_
51#define _SIZE_T_DEFINED_
52typedef __size_t size_t;
53#endif
54
55#if __POSIX_VISIBLE >= 200809
56#ifndef _LOCALE_T_DEFINED_
57#define _LOCALE_T_DEFINED_
58typedef void *locale_t;
59#endif
60#endif
61
62__BEGIN_DECLS
63void *memchr(const void *, int, size_t);
64int memcmp(const void *, const void *, size_t);
65void *memcpy(void *__restrict, const void *__restrict, size_t)
66 __attribute__ ((__bounded__(__buffer__,1,3)))
67 __attribute__ ((__bounded__(__buffer__,2,3)));
68void *memmove(void *, const void *, size_t)
69 __attribute__ ((__bounded__(__buffer__,1,3)))
70 __attribute__ ((__bounded__(__buffer__,2,3)));
71void *memset(void *, int, size_t)
72 __attribute__ ((__bounded__(__buffer__,1,3)));
73char *strcat(char *__restrict, const char *__restrict);
74char *strchr(const char *, int);
75int strcmp(const char *, const char *);
76int strcoll(const char *, const char *);
77char *strcpy(char *__restrict, const char *__restrict);
78size_t strcspn(const char *, const char *);
79char *strerror(int);
80size_t strlen(const char *);
81char *strncat(char *__restrict, const char *__restrict, size_t)
82 __attribute__ ((__bounded__(__string__,1,3)));
83int strncmp(const char *, const char *, size_t);
84char *strncpy(char *__restrict, const char *__restrict, size_t)
85 __attribute__ ((__bounded__(__string__,1,3)));
86char *strpbrk(const char *, const char *);
87char *strrchr(const char *, int);
88size_t strspn(const char *, const char *);
89char *strstr(const char *, const char *);
90char *strtok(char *__restrict, const char *__restrict);
91char *strtok_r(char *__restrict, const char *__restrict, char **__restrict);
92size_t strxfrm(char *__restrict, const char *__restrict, size_t)
93 __attribute__ ((__bounded__(__string__,1,3)));
94
95#if __XPG_VISIBLE
96void *memccpy(void *__restrict, const void *__restrict, int, size_t)
97 __attribute__ ((__bounded__(__buffer__,1,4)));
98#endif
99
100#if __POSIX_VISIBLE >= 200112
101int strerror_r(int, char *, size_t)
102 __attribute__ ((__bounded__(__string__,2,3)));
103#endif
104
105#if __XPG_VISIBLE >= 420 || __POSIX_VISIBLE >= 200809
106char *strdup(const char *);
107#endif
108
109#if __POSIX_VISIBLE >= 200809
110char *stpcpy(char *__restrict, const char *__restrict);
111char *stpncpy(char *__restrict, const char *__restrict, size_t);
112int strcoll_l(const char *, const char *, locale_t);
113char *strerror_l(int, locale_t);
114char *strndup(const char *, size_t);
115size_t strnlen(const char *, size_t);
116char *strsignal(int);
117size_t strxfrm_l(char *__restrict, const char *__restrict, size_t, locale_t)
118 __attribute__ ((__bounded__(__string__,1,3)));
119#endif
120
121#if __POSIX_VISIBLE >= 202405 || __BSD_VISIBLE
122void *memmem(const void *, size_t, const void *, size_t);
123size_t strlcat(char *__restrict, const char *__restrict, size_t)
124 __attribute__ ((__bounded__(__string__,1,3)));
125size_t strlcpy(char *__restrict, const char *__restrict, size_t)
126 __attribute__ ((__bounded__(__string__,1,3)));
127#endif
128
129#if __BSD_VISIBLE
130void explicit_bzero(void *, size_t)
131 __attribute__ ((__bounded__(__buffer__,1,2)));
132void *memrchr(const void *, int, size_t);
133char *strcasestr(const char *, const char *);
134void strmode(__mode_t, char *);
135char *strsep(char **, const char *);
136int timingsafe_bcmp(const void *, const void *, size_t);
137int timingsafe_memcmp(const void *, const void *, size_t);
138#endif
139__END_DECLS
140
141#endif /* _STRING_H_ */