openldap/include/ac/string.h

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/* Generic string.h */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
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* Copyright 1998-2009 The OpenLDAP Foundation.
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* All rights reserved.
*
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* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
*
* A copy of this license is available in file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
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*/
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#ifndef _AC_STRING_H
#define _AC_STRING_H
#ifdef STDC_HEADERS
# include <string.h>
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#else
# ifdef HAVE_STRING_H
# include <string.h>
# endif
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# if defined(HAVE_STRINGS_H) && (!defined(HAVE_STRING_H) || defined(BOTH_STRINGS_H))
# include <strings.h>
# endif
# ifdef HAVE_MEMORY_H
# include <memory.h>
# endif
# ifndef HAVE_STRRCHR
# undef strchr
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# define strchr index
# undef strrchr
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# define strrchr rindex
# endif
# ifndef HAVE_MEMCPY
# undef memcpy
# define memcpy(d, s, n) ((void) bcopy ((s), (d), (n)))
# undef memmove
# define memmove(d, s, n) ((void) bcopy ((s), (d), (n)))
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# endif
#endif
/* use ldap_pvt_strtok instead of strtok or strtok_r! */
LDAP_F(char *) ldap_pvt_strtok LDAP_P(( char *str,
const char *delim, char **pos ));
#ifndef HAVE_STRDUP
/* strdup() is missing, declare our own version */
# undef strdup
# define strdup(s) ber_strdup(s)
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#elif !defined(_WIN32)
/* some systems fail to declare strdup */
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/* Windows does not require this declaration */
LDAP_LIBC_F(char *) (strdup)();
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#endif
/*
* some systems fail to declare strcasecmp() and strncasecmp()
* we need them declared so we can obtain pointers to them
*/
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/* we don't want these declared for Windows or Mingw */
#ifndef _WIN32
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int (strcasecmp)();
int (strncasecmp)();
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#endif
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#ifndef SAFEMEMCPY
# if defined( HAVE_MEMMOVE )
# define SAFEMEMCPY( d, s, n ) memmove((d), (s), (n))
# elif defined( HAVE_BCOPY )
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# define SAFEMEMCPY( d, s, n ) bcopy((s), (d), (n))
# else
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/* nothing left but memcpy() */
# define SAFEMEMCPY( d, s, n ) memcpy((d), (s), (n))
# endif
#endif
#define AC_MEMCPY( d, s, n ) (SAFEMEMCPY((d),(s),(n)))
#define AC_FMEMCPY( d, s, n ) do { \
if((n) == 1) *((char*)(d)) = *((char*)(s)); \
else AC_MEMCPY( (d), (s), (n) ); \
} while(0)
#ifdef NEED_MEMCMP_REPLACEMENT
int (lutil_memcmp)(const void *b1, const void *b2, size_t len);
#define memcmp lutil_memcmp
#endif
/* GNU extension (glibc >= 2.1.91), only declared when defined(_GNU_SOURCE) */
#ifndef HAVE_MEMRCHR
#undef memrchr
#define memrchr lutil_memrchr
#endif /* ! HAVE_MEMRCHR */
void * memrchr(const void *b, int c, size_t len);
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#define STRLENOF(s) (sizeof(s)-1)
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#if defined( HAVE_NONPOSIX_STRERROR_R )
# define AC_STRERROR_R(e,b,l) (strerror_r((e), (b), (l)))
#elif defined( HAVE_STRERROR_R )
# define AC_STRERROR_R(e,b,l) (strerror_r((e), (b), (l)) == 0 ? (b) : "Unknown error")
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#elif defined( HAVE_SYS_ERRLIST )
# define AC_STRERROR_R(e,b,l) ((e) > -1 && (e) < sys_nerr \
? sys_errlist[(e)] : "Unknown error" )
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#elif defined( HAVE_STRERROR )
# define AC_STRERROR_R(e,b,l) (strerror(e)) /* NOTE: may be NULL */
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#else
# define AC_STRERROR_R(e,b,l) ("Unknown error")
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#endif
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#endif /* _AC_STRING_H */