Add ohash_* functions to libc.

Ok'd deraadt@, millert@

1 files changed, 53 insertions, 0 deletions

diff --git a/lib/libc/ohash/ohash_create_entry.c b/lib/libc/ohash/ohash_create_entry.c
new file mode 100644
index 00000000000..6f8d1a01077
--- /dev/null
+++ b/lib/libc/ohash/ohash_create_entry.c
@@ -0,0 +1,53 @@
+/* $OpenBSD: ohash_create_entry.c,v 1.1 2001/03/02 13:27:07 espie Exp $ */
+/* ex:ts=8 sw=4: 
+ */
+
+/*
+ * Copyright (c) 1999 Marc Espie.
+ *
+ * Code written for the OpenBSD project.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT 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 OPENBSD
+ * PROJECT 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 "ohash_int.h"
+
+/* This handles the common case of variable length keys, where the 
+ * key is stored at the end of the record.
+ */
+void *
+ohash_create_entry(i, start, end)
+	struct ohash_info *i;
+	const char *start;
+	const char **end;
+{
+	char *p;
+
+	if (!*end)
+		*end = start + strlen(start);
+	p = (i->alloc)(i->key_offset + (*end - start) + 1, i->data);
+	if (p) {
+	    memcpy(p+i->key_offset, start, *end-start);
+	    p[i->key_offset + (*end - start)] = '\0';
+	}
+	return (void *)p;
+}