Merge remote branch 'origin/mdb.master' into OPENLDAP_REL_ENG_2_4

[openldap] / include / ac / string.h

diff --git a/include/ac/string.h b/include/ac/string.h
index 980511d3d0d5b63ac15190d0ac090ae7ae5f360c..a6a5ae348c5bbc33e7a92d8b5df991da87746807 100644 (file)
--- a/include/ac/string.h
+++ b/include/ac/string.h
@@ -1,13 +1,17 @@
 /* Generic string.h */
 /* $OpenLDAP$ */
-/*
- * Copyright 1998,1999 The OpenLDAP Foundation, Redwood City, California, USA
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2013 The OpenLDAP Foundation.
  * 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.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * 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>.
  */
 
 #ifndef _AC_STRING_H
@@ -19,7 +23,8 @@
 #else
 #      ifdef HAVE_STRING_H
 #              include <string.h>
-#      elif HAVE_STRINGS_H
+#      endif
+#      if defined(HAVE_STRINGS_H) && (!defined(HAVE_STRING_H) || defined(BOTH_STRINGS_H))
 #              include <strings.h>
 #      endif
 
@@ -43,27 +48,29 @@
 #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 ));
-
-LDAP_F(char *) ldap_pvt_strdup LDAP_P((
-       const char * s ));
+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) ldap_pvt_strdup(s)
-#else
+#      define strdup(s) ber_strdup(s)
+#elif !defined(_WIN32)
        /* some systems fail to declare strdup */
-       extern char *(strdup)();
+       /* Windows does not require this declaration */
+       LDAP_LIBC_F(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)();
-extern int (strncasecmp)();
+
+/* we don't want these declared for Windows or Mingw */
+#ifndef _WIN32
+int (strcasecmp)();
+int (strncasecmp)();
+#endif
 
 #ifndef SAFEMEMCPY
 #      if defined( HAVE_MEMMOVE )
@@ -76,4 +83,36 @@ extern int (strncasecmp)();
 #      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
+
+void *(lutil_memrchr)(const void *b, int c, size_t n);
+/* GNU extension (glibc >= 2.1.91), only declared when defined(_GNU_SOURCE) */
+#if defined(HAVE_MEMRCHR) && defined(_GNU_SOURCE)
+#define lutil_memrchr(b, c, n) memrchr(b, c, n)
+#endif /* ! HAVE_MEMRCHR */
+
+#define STRLENOF(s)    (sizeof(s)-1)
+
+#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")
+#elif defined( HAVE_SYS_ERRLIST )
+#      define AC_STRERROR_R(e,b,l)             ((e) > -1 && (e) < sys_nerr \
+                                                       ? sys_errlist[(e)] : "Unknown error" )
+#elif defined( HAVE_STRERROR )
+#      define AC_STRERROR_R(e,b,l)             (strerror(e))   /* NOTE: may be NULL */
+#else
+#      define AC_STRERROR_R(e,b,l)             ("Unknown error")
+#endif
+
 #endif /* _AC_STRING_H */