openldap/include/ac/string.h
Kurt Zeilenga 84bafea62e #undef symbols before #defining them. This provides a little protection
when symbol being replaced was defined as a macro.
1999-02-20 18:31:56 +00:00

84 lines
1.9 KiB
C

/* Generic string.h */
/*
* Copyright 1998,1999 The OpenLDAP Foundation, Redwood City, California, USA
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted only
* as authorized by the OpenLDAP Public License. A copy of this
* license is available at http://www.OpenLDAP.org/license.html or
* in file LICENSE in the top-level directory of the distribution.
*/
#ifndef _AC_STRING_H
#define _AC_STRING_H
#ifdef STDC_HEADERS
# include <string.h>
#else
# ifdef HAVE_STRING_H
# include <string.h>
# elif HAVE_STRINGS_H
# include <strings.h>
# endif
# ifdef HAVE_MEMORY_H
# include <memory.h>
# endif
/* we should actually create <ac/stdlib.h> */
# ifdef HAVE_MALLOC_H
# include <malloc.h>
# endif
# ifndef HAVE_STRRCHR
# undef strchr
# define strchr index
# undef strrchr
# 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)))
# endif
#endif
extern char *ldap_pvt_strtok( char *str, const char *delim, char **pos );
#ifndef HAVE_STRTOK_R
# undef strtok_r
# define strtok_r(s, d, p) ldap_pvt_strtok((s),(d),(p))
#endif
extern char *ldap_pvt_strdup( const char * s );
#ifndef HAVE_STRDUP
/* strdup() is missing, declare our own version */
# undef strdup
# define strdup(s) ldap_pvt_strdup(s)
#else
/* some systems fail to declare strdup */
extern char *strdup();
#endif
/*
* some systems fail to declare strcasecmp() and strncasecmp()
* we need them declared so we can obtain pointers to them
*/
extern int strcasecmp(), strncasecmp();
#ifndef SAFEMEMCPY
# if defined( HAVE_MEMMOVE )
# define SAFEMEMCPY( d, s, n ) memmove((d), (s), (n))
# elif defined( HAVE_BCOPY )
# define SAFEMEMCPY( d, s, n ) bcopy((s), (d), (n))
# else
/* nothing left but memcpy() */
# define SAFEMEMCPY( d, s, n ) memcpy((d), (s), (n))
# endif
#endif
#endif /* _AC_STRING_H */