1 files changed, 118 insertions, 0 deletions
diff --git a/include/ac/string.h b/include/ac/string.h
new file mode 100644
index 0000000..c4c1354
--- /dev/null
+++ b/include/ac/string.h
@@ -0,0 +1,118 @@
+/* Generic string.h */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * 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
+#define _AC_STRING_H
+
+#ifdef STDC_HEADERS
+#	include <string.h>
+
+#else
+#	ifdef HAVE_STRING_H
+#		include <string.h>
+#	endif
+#	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
+#		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
+
+/* 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)
+#elif !defined(_WIN32)
+	/* some systems fail to declare 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
+ */
+
+/* we don't want these declared for Windows or Mingw */
+#ifndef _WIN32
+int (strcasecmp)();
+int (strncasecmp)();
+#endif
+
+#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
+
+#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 */