diff options
Diffstat (limited to 'sys/fs/cd9660/cd9660_util.c')
| -rw-r--r-- | sys/fs/cd9660/cd9660_util.c | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/sys/fs/cd9660/cd9660_util.c b/sys/fs/cd9660/cd9660_util.c new file mode 100644 index 0000000..f74f051 --- /dev/null +++ b/sys/fs/cd9660/cd9660_util.c @@ -0,0 +1,236 @@ +/*- + * Copyright (c) 1994 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley + * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension + * Support code is derived from software contributed to Berkeley + * by Atsushi Murai (amurai@spec.co.jp). + * + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + * + * @(#)cd9660_util.c 8.1 (Berkeley) 1/21/94 + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/namei.h> +#include <sys/resourcevar.h> +#include <sys/kernel.h> +#include <sys/file.h> +#include <sys/stat.h> +#include <sys/buf.h> +#include <sys/proc.h> +#include <sys/conf.h> +#include <sys/mount.h> +#include <sys/vnode.h> +#include <miscfs/specfs/specdev.h> /* XXX */ +#include <miscfs/fifofs/fifo.h> /* XXX */ +#include <sys/malloc.h> +#include <sys/dir.h> + +#include <isofs/cd9660/iso.h> + +#ifdef __notanymore__ +int +isonum_711 (p) +unsigned char *p; +{ + return (*p); +} + +int +isonum_712 (p) +signed char *p; +{ + return (*p); +} + +int +isonum_721 (p) +unsigned char *p; +{ + /* little endian short */ +#if BYTE_ORDER != LITTLE_ENDIAN + printf ("isonum_721 called on non little-endian machine!\n"); +#endif + + return *(short *)p; +} + +int +isonum_722 (p) +unsigned char *p; +{ + /* big endian short */ +#if BYTE_ORDER != BIG_ENDIAN + printf ("isonum_722 called on non big-endian machine!\n"); +#endif + + return *(short *)p; +} + +int +isonum_723 (p) +unsigned char *p; +{ +#if BYTE_ORDER == BIG_ENDIAN + return isonum_722 (p + 2); +#elif BYTE_ORDER == LITTLE_ENDIAN + return isonum_721 (p); +#else + printf ("isonum_723 unsupported byte order!\n"); + return 0; +#endif +} + +int +isonum_731 (p) +unsigned char *p; +{ + /* little endian long */ +#if BYTE_ORDER != LITTLE_ENDIAN + printf ("isonum_731 called on non little-endian machine!\n"); +#endif + + return *(long *)p; +} + +int +isonum_732 (p) +unsigned char *p; +{ + /* big endian long */ +#if BYTE_ORDER != BIG_ENDIAN + printf ("isonum_732 called on non big-endian machine!\n"); +#endif + + return *(long *)p; +} + +int +isonum_733 (p) +unsigned char *p; +{ +#if BYTE_ORDER == BIG_ENDIAN + return isonum_732 (p + 4); +#elif BYTE_ORDER == LITTLE_ENDIAN + return isonum_731 (p); +#else + printf ("isonum_733 unsupported byte order!\n"); + return 0; +#endif +} +#endif /* __notanymore__ */ + +/* + * translate and compare a filename + * Note: Version number plus ';' may be omitted. + */ +int +isofncmp(unsigned char *fn,int fnlen,unsigned char *isofn,int isolen) +{ + int i, j; + char c; + + while (--fnlen >= 0) { + if (--isolen < 0) + return *fn; + if ((c = *isofn++) == ';') { + switch (*fn++) { + default: + return *--fn; + case 0: + return 0; + case ';': + break; + } + for (i = 0; --fnlen >= 0; i = i * 10 + *fn++ - '0') { + if (*fn < '0' || *fn > '9') { + return -1; + } + } + for (j = 0; --isolen >= 0; j = j * 10 + *isofn++ - '0'); + return i - j; + } + if (c != *fn) { + if (c >= 'A' && c <= 'Z') { + if (c + ('a' - 'A') != *fn) { + if (*fn >= 'a' && *fn <= 'z') + return *fn - ('a' - 'A') - c; + else + return *fn - c; + } + } else + return *fn - c; + } + fn++; + } + if (isolen > 0) { + switch (*isofn) { + default: + return -1; + case '.': + if (isofn[1] != ';') + return -1; + case ';': + return 0; + } + } + return 0; +} + +/* + * translate a filename + */ +void +isofntrans(unsigned char *infn,int infnlen, + unsigned char *outfn,unsigned short *outfnlen, + int original,int assoc) +{ + int fnidx = 0; + + if (assoc) { + *outfn++ = ASSOCCHAR; + fnidx++; + } + for (; fnidx < infnlen; fnidx++) { + char c = *infn++; + + if (!original && c >= 'A' && c <= 'Z') + *outfn++ = c + ('a' - 'A'); + else if (!original && c == '.' && *infn == ';') + break; + else if (!original && c == ';') + break; + else + *outfn++ = c; + } + *outfnlen = fnidx; +} |
