am f7dd9085: am f42df8c1: Merge "Add lsearch(3) for ltrace."

* commit 'f7dd908586ea49283a792e345e51d48541834b7c':
  Add lsearch(3) for ltrace.

libc/Android.mk

@@ -292,6 +292,7 @@ libc_upstream_netbsd_src_files := \
     upstream-netbsd/lib/libc/stdlib/ldiv.c \
     upstream-netbsd/lib/libc/stdlib/lldiv.c \
     upstream-netbsd/lib/libc/stdlib/lrand48.c \
+    upstream-netbsd/lib/libc/stdlib/lsearch.c \
     upstream-netbsd/lib/libc/stdlib/mrand48.c \
     upstream-netbsd/lib/libc/stdlib/nrand48.c \
     upstream-netbsd/lib/libc/stdlib/_rand48.c \

libc/include/search.h

@@ -10,29 +10,34 @@
 #define _SEARCH_H_
 
 #include <sys/cdefs.h>
+#include <sys/types.h>
 
-typedef	enum {
-	preorder,
-	postorder,
-	endorder,
-	leaf
+typedef enum {
+  preorder,
+  postorder,
+  endorder,
+  leaf
 } VISIT;
 
 #ifdef _SEARCH_PRIVATE
-typedef	struct node {
-	char         *key;
-	struct node  *llink, *rlink;
+typedef struct node {
+  char* key;
+  struct node* llink;
+  struct node* rlink;
 } node_t;
 #endif
 
 __BEGIN_DECLS
-void	*tdelete(const void * __restrict, void ** __restrict,
-	    int (*)(const void *, const void *));
-void	*tfind(const void *, void * const *,
-	    int (*)(const void *, const void *));
-void	*tsearch(const void *, void **, int (*)(const void *, const void *));
-void	 twalk(const void *, void (*)(const void *, VISIT, int));
-void	 tdestroy(void *, void (*)(void *));
+
+void* lfind(const void*, const void*, size_t*, size_t, int (*)(const void*, const void*));
+void* lsearch(const void*, void*, size_t*, size_t, int (*)(const void*, const void*));
+
+void* tdelete(const void* __restrict, void** __restrict, int (*)(const void*, const void*));
+void tdestroy(void*, void (*)(void*));
+void* tfind(const void*, void* const*, int (*)(const void*, const void*));
+void* tsearch(const void*, void**, int (*)(const void*, const void*));
+void twalk(const void*, void (*)(const void*, VISIT, int));
+
 __END_DECLS
 
 #endif /* !_SEARCH_H_ */

libc/upstream-netbsd/lib/libc/stdlib/lsearch.c

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Roger L. Snyder.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)lsearch.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: lsearch.c,v 1.7 2012/06/25 22:32:45 abs Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <search.h>
+
+typedef int (*cmp_fn_t)(const void *, const void *);
+static void *linear_base(const void *, void *, size_t *, size_t,
+			     cmp_fn_t, int);
+
+void *
+lsearch(const void *key, void *base, size_t *nelp, size_t width,
+    cmp_fn_t compar)
+{
+
+	_DIAGASSERT(key != NULL);
+	_DIAGASSERT(base != NULL);
+	_DIAGASSERT(compar != NULL);
+
+	return(linear_base(key, base, nelp, width, compar, 1));
+}
+
+void *
+lfind(const void *key, const void *base, size_t *nelp, size_t width,
+    cmp_fn_t compar)
+{
+
+	_DIAGASSERT(key != NULL);
+	_DIAGASSERT(base != NULL);
+	_DIAGASSERT(compar != NULL);
+
+	return(linear_base(key, __UNCONST(base), nelp, width, compar, 0));
+}
+
+static void *
+linear_base(const void *key, void *base, size_t *nelp, size_t width,
+	cmp_fn_t compar, int add_flag)
+{
+	char *element, *end;
+
+	_DIAGASSERT(key != NULL);
+	_DIAGASSERT(base != NULL);
+	_DIAGASSERT(compar != NULL);
+
+	end = (char *)base + *nelp * width;
+	for (element = (char *)base; element < end; element += width)
+		if (!compar(element, key))		/* key found */
+			return element;
+
+	if (!add_flag)					/* key not found */
+		return(NULL);
+
+	/*
+	 * The UNIX System User's Manual, 1986 edition claims that
+	 * a NULL pointer is returned by lsearch with errno set
+	 * appropriately, if there is not enough room in the table
+	 * to add a new item.  This can't be done as none of these
+	 * routines have any method of determining the size of the
+	 * table.  This comment isn't in the 1986-87 System V
+	 * manual.
+	 */
+	++*nelp;
+	memcpy(end, key, width);
+	return end;
+}