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- /* $MirOS: contrib/hosted/fwcf/wraps.c,v 1.7 2006/09/26 10:25:03 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>
- #ifdef DEBUG
- #include <stdio.h>
- #endif
- #include <stdlib.h>
- #include <string.h>
- #include <unistd.h>
- #include "defs.h"
- #include "adler.h"
- #include "compress.h"
- #include "fts_subs.h"
- #include "pack.h"
- #include "sysdeps.h"
- __RCSID("$MirOS: contrib/hosted/fwcf/wraps.c,v 1.7 2006/09/26 10:25:03 tg Exp $");
- char *
- fwcf_packm(const char *dir, int algo, size_t *dstsz)
- {
- char empty_data = 0, *data, *f_data = NULL;
- size_t i;
- if (dir == NULL) {
- data = &empty_data;
- i = 1;
- } else {
- ftsf_start(dir);
- data = (f_data = ft_packm()) + sizeof (size_t);
- i = *(size_t *)f_data - sizeof (size_t);
- }
- data = fwcf_pack(data, i, algo, dstsz);
- if (f_data != NULL)
- free(f_data);
- return (data);
- }
- char *
- fwcf_pack(char *odata, size_t i, int algo, size_t *dstsz)
- {
- int j;
- size_t k;
- char *data, *cdata;
- if (i > 0xFFFFFF)
- errx(1, "inner size of %lu too large", (unsigned long)i);
- #ifdef DEBUG
- fprintf(stderr, "fwcf_pack: algo %02X packing %lu\n", algo, (unsigned long)i);
- #endif
- if ((j = compressor_get(algo)->compress(&cdata, odata, i)) == -1)
- errx(1, "%s compression failed", compressor_get(algo)->name);
- /* 12 bytes header, padding to 4-byte boundary, 4 bytes trailer */
- k = ((j + 19) / 4) * 4;
- #if DEF_FLASHPART > 0xFFFFFF
- # error DEF_FLASHPART too large
- #endif
- if (k > DEF_FLASHPART)
- errx(1, "%lu bytes too large for flash partition of %lu KiB",
- (u_long)k, DEF_FLASHPART / 1024UL);
- /* padded to size of flash block */
- #if (DEF_FLASHBLOCK & 3)
- # error DEF_FLASHBLOCK must be dword-aligned
- #endif
- *dstsz = ((k + (DEF_FLASHBLOCK - 1)) / DEF_FLASHBLOCK) * DEF_FLASHBLOCK;
- if ((data = malloc(*dstsz)) == NULL)
- err(1, "malloc");
- mkheader(data, *dstsz, k, i, algo);
- memcpy(data + 12, cdata, j);
- free(cdata);
- k = j + 12;
- while (k & 3)
- data[k++] = 0;
- mktrailer(data, k);
- k += 4;
- pull_rndata((u_int8_t *)data + k, *dstsz - k);
- return (data);
- }
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