1 /* $OpenBSD: ohash_create_entry.c,v 1.2 2004/06/22 20:00:16 espie Exp $ */
2 /* ex:ts=8 sw=4:
3  */
4 
5 /* Copyright (c) 1999, 2004 Marc Espie <espie@openbsd.org>
6  *
7  * Permission to use, copy, modify, and distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18  *
19  * $FreeBSD: src/usr.bin/m4/lib/ohash_create_entry.c,v 1.2 2012/11/17 01:54:24 svnexp Exp $
20  */
21 
22 #include "ohash_int.h"
23 
24 /* This handles the common case of variable length keys, where the
25  * key is stored at the end of the record.
26  */
27 void *
28 ohash_create_entry(struct ohash_info *i, const char *start, const char **end)
29 {
30 	char *p;
31 
32 	if (!*end)
33 		*end = start + strlen(start);
34 	p = (i->alloc)(i->key_offset + (*end - start) + 1, i->data);
35 	if (p) {
36 		memcpy(p + i->key_offset, start, *end-start);
37 		p[i->key_offset + (*end - start)] = '\0';
38 	}
39 	return (void *)p;
40 }
41