1/*	$NetBSD: string.h,v 1.1.1.3 2010/12/12 15:21:27 adam Exp $	*/
2
3/* Generic string.h */
4/* OpenLDAP: pkg/ldap/include/ac/string.h,v 1.51.2.7 2010/04/13 20:22:52 kurt Exp */
5/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 1998-2010 The OpenLDAP Foundation.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted only as authorized by the OpenLDAP
12 * Public License.
13 *
14 * A copy of this license is available in file LICENSE in the
15 * top-level directory of the distribution or, alternatively, at
16 * <http://www.OpenLDAP.org/license.html>.
17 */
18
19#ifndef _AC_STRING_H
20#define _AC_STRING_H
21
22#ifdef STDC_HEADERS
23#	include <string.h>
24
25#else
26#	ifdef HAVE_STRING_H
27#		include <string.h>
28#	endif
29#	if defined(HAVE_STRINGS_H) && (!defined(HAVE_STRING_H) || defined(BOTH_STRINGS_H))
30#		include <strings.h>
31#	endif
32
33#	ifdef HAVE_MEMORY_H
34#		include <memory.h>
35#	endif
36
37#	ifndef HAVE_STRRCHR
38#		undef strchr
39#		define strchr index
40#		undef strrchr
41#		define strrchr rindex
42#	endif
43
44#	ifndef HAVE_MEMCPY
45#		undef memcpy
46#		define memcpy(d, s, n)		((void) bcopy ((s), (d), (n)))
47#		undef memmove
48#		define memmove(d, s, n)		((void) bcopy ((s), (d), (n)))
49#	endif
50#endif
51
52/* use ldap_pvt_strtok instead of strtok or strtok_r! */
53LDAP_F(char *) ldap_pvt_strtok LDAP_P(( char *str,
54	const char *delim, char **pos ));
55
56#ifndef HAVE_STRDUP
57	/* strdup() is missing, declare our own version */
58#	undef strdup
59#	define strdup(s) ber_strdup(s)
60#elif !defined(_WIN32)
61	/* some systems fail to declare strdup */
62	/* Windows does not require this declaration */
63	LDAP_LIBC_F(char *) (strdup)();
64#endif
65
66/*
67 * some systems fail to declare strcasecmp() and strncasecmp()
68 * we need them declared so we can obtain pointers to them
69 */
70
71/* we don't want these declared for Windows or Mingw */
72#ifndef _WIN32
73int (strcasecmp)();
74int (strncasecmp)();
75#endif
76
77#ifndef SAFEMEMCPY
78#	if defined( HAVE_MEMMOVE )
79#		define SAFEMEMCPY( d, s, n ) 	memmove((d), (s), (n))
80#	elif defined( HAVE_BCOPY )
81#		define SAFEMEMCPY( d, s, n ) 	bcopy((s), (d), (n))
82#	else
83		/* nothing left but memcpy() */
84#		define SAFEMEMCPY( d, s, n )	memcpy((d), (s), (n))
85#	endif
86#endif
87
88#define AC_MEMCPY( d, s, n ) (SAFEMEMCPY((d),(s),(n)))
89#define AC_FMEMCPY( d, s, n ) do { \
90		if((n) == 1) *((char*)(d)) = *((char*)(s)); \
91		else AC_MEMCPY( (d), (s), (n) ); \
92	} while(0)
93
94#ifdef NEED_MEMCMP_REPLACEMENT
95	int (lutil_memcmp)(const void *b1, const void *b2, size_t len);
96#define memcmp lutil_memcmp
97#endif
98
99void *(lutil_memrchr)(const void *b, int c, size_t n);
100/* GNU extension (glibc >= 2.1.91), only declared when defined(_GNU_SOURCE) */
101#if defined(HAVE_MEMRCHR) && defined(_GNU_SOURCE)
102#define lutil_memrchr(b, c, n) memrchr(b, c, n)
103#endif /* ! HAVE_MEMRCHR */
104
105#define STRLENOF(s)	(sizeof(s)-1)
106
107#if defined( HAVE_NONPOSIX_STRERROR_R )
108#	define AC_STRERROR_R(e,b,l)		(strerror_r((e), (b), (l)))
109#elif defined( HAVE_STRERROR_R )
110#	define AC_STRERROR_R(e,b,l)		(strerror_r((e), (b), (l)) == 0 ? (b) : "Unknown error")
111#elif defined( HAVE_SYS_ERRLIST )
112#	define AC_STRERROR_R(e,b,l)		((e) > -1 && (e) < sys_nerr \
113							? sys_errlist[(e)] : "Unknown error" )
114#elif defined( HAVE_STRERROR )
115#	define AC_STRERROR_R(e,b,l)		(strerror(e))	/* NOTE: may be NULL */
116#else
117#	define AC_STRERROR_R(e,b,l)		("Unknown error")
118#endif
119
120#endif /* _AC_STRING_H */
121