123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778 |
- /* $MirOS: contrib/hosted/fwcf/compress.c,v 1.7 2006/09/23 23:46:35 tg Exp $ */
- /*-
- * Copyright (c) 2006
- * Thorsten Glaser <tg@mirbsd.de>
- *
- * Licensee is hereby permitted to deal in this work without restric-
- * tion, including unlimited rights to use, publicly perform, modify,
- * merge, distribute, sell, give away or sublicence, provided all co-
- * pyright notices above, these terms and the disclaimer are retained
- * in all redistributions or reproduced in accompanying documentation
- * or other materials provided with binary redistributions.
- *
- * Licensor offers the work "AS IS" and WITHOUT WARRANTY of any kind,
- * express, or implied, to the maximum extent permitted by applicable
- * law, without malicious intent or gross negligence; in no event may
- * licensor, an author or contributor be held liable for any indirect
- * or other damage, or direct damage except proven a consequence of a
- * direct error of said person and intended use of this work, loss or
- * other issues arising in any way out of its use, even if advised of
- * the possibility of such damage or existence of a defect.
- */
- #include <sys/param.h>
- #include <err.h>
- #include <stdlib.h>
- #include "defs.h"
- #include "compress.h"
- __RCSID("$MirOS: contrib/hosted/fwcf/compress.c,v 1.7 2006/09/23 23:46:35 tg Exp $");
- static void compress_initialise(void);
- static fwcf_compressor *fwcf_compressors = NULL;
- int
- compress_register(fwcf_compressor *e)
- {
- compress_initialise();
- if (e == NULL)
- return (1);
- if ((e->init == NULL) || (e->compress == NULL) ||
- (e->decompress == NULL) || (e->name == NULL))
- return (1);
- if (fwcf_compressors[e->code].name != NULL)
- return (2);
- fwcf_compressors[e->code] = *e;
- return (0);
- }
- fwcf_compressor *
- compress_enumerate(void)
- {
- int i;
- fwcf_compressor *rv = NULL;
- compress_initialise();
- for (i = 0; i < 256; ++i)
- if (fwcf_compressors[i].name != NULL) {
- if (fwcf_compressors[i].code == i)
- rv = fwcf_compressors;
- else
- errx(1, "fwcf compressor registry invalid");
- }
- return (rv);
- }
- static void
- compress_initialise(void)
- {
- if (fwcf_compressors != NULL)
- return;
- if ((fwcf_compressors = calloc(256, sizeof (fwcf_compressor))) == NULL)
- err(1, "calloc");
- }
|