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      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 (at) 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 
     20 #include "ohash_int.h"
     21 
     22 /* This handles the common case of variable length keys, where the
     23  * key is stored at the end of the record.
     24  */
     25 void *
     26 ohash_create_entry(struct ohash_info *i, const char *start, const char **end)
     27 {
     28 	char *p;
     29 
     30 	if (!*end)
     31 		*end = start + strlen(start);
     32 	p = (i->alloc)(i->key_offset + (*end - start) + 1, i->data);
     33 	if (p) {
     34 	    memcpy(p+i->key_offset, start, *end-start);
     35 	    p[i->key_offset + (*end - start)] = '\0';
     36 	}
     37 	return (void *)p;
     38 }
     39