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-rw-r--r--sys/fs/cd9660/cd9660_rrip.c685
1 files changed, 685 insertions, 0 deletions
diff --git a/sys/fs/cd9660/cd9660_rrip.c b/sys/fs/cd9660/cd9660_rrip.c
new file mode 100644
index 000000000000..0923fa014773
--- /dev/null
+++ b/sys/fs/cd9660/cd9660_rrip.c
@@ -0,0 +1,685 @@
+/*-
+ * Copyright (c) 1993, 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_rrip.c 8.2 (Berkeley) 1/23/94
+ */
+
+#include <sys/param.h>
+#include <sys/namei.h>
+#include <sys/buf.h>
+#include <sys/file.h>
+#include <sys/vnode.h>
+#include <sys/mount.h>
+#include <sys/kernel.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <sys/time.h>
+
+#include <isofs/cd9660/iso.h>
+#include <isofs/cd9660/cd9660_node.h>
+#include <isofs/cd9660/cd9660_rrip.h>
+#include <isofs/cd9660/iso_rrip.h>
+
+/*
+ * POSIX file attribute
+ */
+static int
+cd9660_rrip_attr(p,ana)
+ ISO_RRIP_ATTR *p;
+ ISO_RRIP_ANALYZE *ana;
+{
+ ana->inop->inode.iso_mode = isonum_731(p->mode_l);
+ ana->inop->inode.iso_uid = (uid_t)isonum_731(p->uid_l);
+ ana->inop->inode.iso_gid = (gid_t)isonum_731(p->gid_l);
+ ana->inop->inode.iso_links = isonum_731(p->links_l);
+ ana->fields &= ~ISO_SUSP_ATTR;
+ return ISO_SUSP_ATTR;
+}
+
+static void
+cd9660_rrip_defattr(isodir,ana)
+ struct iso_directory_record *isodir;
+ ISO_RRIP_ANALYZE *ana;
+{
+ /* But this is a required field! */
+ printf("RRIP without PX field?\n");
+ cd9660_defattr(isodir,ana->inop,NULL);
+}
+
+/*
+ * Symbolic Links
+ */
+static int
+cd9660_rrip_slink(p,ana)
+ ISO_RRIP_SLINK *p;
+ ISO_RRIP_ANALYZE *ana;
+{
+ register ISO_RRIP_SLINK_COMPONENT *pcomp;
+ register ISO_RRIP_SLINK_COMPONENT *pcompe;
+ int len, wlen, cont;
+ char *outbuf, *inbuf;
+
+ pcomp = (ISO_RRIP_SLINK_COMPONENT *)p->component;
+ pcompe = (ISO_RRIP_SLINK_COMPONENT *)((char *)p + isonum_711(p->h.length));
+ len = *ana->outlen;
+ outbuf = ana->outbuf;
+ cont = ana->cont;
+
+ /*
+ * Gathering a Symbolic name from each component with path
+ */
+ for (;
+ pcomp < pcompe;
+ pcomp = (ISO_RRIP_SLINK_COMPONENT *)((char *)pcomp + ISO_RRIP_SLSIZ
+ + isonum_711(pcomp->clen))) {
+
+ if (!cont) {
+ if (len < ana->maxlen) {
+ len++;
+ *outbuf++ = '/';
+ }
+ }
+ cont = 0;
+
+ inbuf = "..";
+ wlen = 0;
+
+ switch (*pcomp->cflag) {
+
+ case ISO_SUSP_CFLAG_CURRENT:
+ /* Inserting Current */
+ wlen = 1;
+ break;
+
+ case ISO_SUSP_CFLAG_PARENT:
+ /* Inserting Parent */
+ wlen = 2;
+ break;
+
+ case ISO_SUSP_CFLAG_ROOT:
+ /* Inserting slash for ROOT */
+ /* start over from beginning(?) */
+ outbuf -= len;
+ len = 0;
+ break;
+
+ case ISO_SUSP_CFLAG_VOLROOT:
+ /* Inserting a mount point i.e. "/cdrom" */
+ /* same as above */
+ outbuf -= len;
+ len = 0;
+ inbuf = ana->imp->im_mountp->mnt_stat.f_mntonname;
+ wlen = strlen(inbuf);
+ break;
+
+ case ISO_SUSP_CFLAG_HOST:
+ /* Inserting hostname i.e. "kurt.tools.de" */
+ inbuf = hostname;
+ wlen = hostnamelen;
+ break;
+
+ case ISO_SUSP_CFLAG_CONTINUE:
+ cont = 1;
+ /* fall thru */
+ case 0:
+ /* Inserting component */
+ wlen = isonum_711(pcomp->clen);
+ inbuf = pcomp->name;
+ break;
+ default:
+ printf("RRIP with incorrect flags?");
+ wlen = ana->maxlen + 1;
+ break;
+ }
+
+ if (len + wlen > ana->maxlen) {
+ /* indicate error to caller */
+ ana->cont = 1;
+ ana->fields = 0;
+ ana->outbuf -= *ana->outlen;
+ *ana->outlen = 0;
+ return 0;
+ }
+
+ bcopy(inbuf,outbuf,wlen);
+ outbuf += wlen;
+ len += wlen;
+
+ }
+ ana->outbuf = outbuf;
+ *ana->outlen = len;
+ ana->cont = cont;
+
+ if (!isonum_711(p->flags)) {
+ ana->fields &= ~ISO_SUSP_SLINK;
+ return ISO_SUSP_SLINK;
+ }
+ return 0;
+}
+
+/*
+ * Alternate name
+ */
+static int
+cd9660_rrip_altname(p,ana)
+ ISO_RRIP_ALTNAME *p;
+ ISO_RRIP_ANALYZE *ana;
+{
+ char *inbuf;
+ int wlen;
+ int cont;
+
+ inbuf = "..";
+ wlen = 0;
+ cont = 0;
+
+ switch (*p->flags) {
+ case ISO_SUSP_CFLAG_CURRENT:
+ /* Inserting Current */
+ wlen = 1;
+ break;
+
+ case ISO_SUSP_CFLAG_PARENT:
+ /* Inserting Parent */
+ wlen = 2;
+ break;
+
+ case ISO_SUSP_CFLAG_HOST:
+ /* Inserting hostname i.e. "kurt.tools.de" */
+ inbuf = hostname;
+ wlen = hostnamelen;
+ break;
+
+ case ISO_SUSP_CFLAG_CONTINUE:
+ cont = 1;
+ /* fall thru */
+ case 0:
+ /* Inserting component */
+ wlen = isonum_711(p->h.length) - 5;
+ inbuf = (char *)p + 5;
+ break;
+
+ default:
+ printf("RRIP with incorrect NM flags?\n");
+ wlen = ana->maxlen + 1;
+ break;
+ }
+
+ if ((*ana->outlen += wlen) > ana->maxlen) {
+ /* treat as no name field */
+ ana->fields &= ~ISO_SUSP_ALTNAME;
+ ana->outbuf -= *ana->outlen - wlen;
+ *ana->outlen = 0;
+ return 0;
+ }
+
+ bcopy(inbuf,ana->outbuf,wlen);
+ ana->outbuf += wlen;
+
+ if (!cont) {
+ ana->fields &= ~ISO_SUSP_ALTNAME;
+ return ISO_SUSP_ALTNAME;
+ }
+ return 0;
+}
+
+static void
+cd9660_rrip_defname(isodir,ana)
+ struct iso_directory_record *isodir;
+ ISO_RRIP_ANALYZE *ana;
+{
+ strcpy(ana->outbuf,"..");
+ switch (*isodir->name) {
+ default:
+ isofntrans(isodir->name,isonum_711(isodir->name_len),
+ ana->outbuf,ana->outlen,
+ 1,isonum_711(isodir->flags)&4);
+ break;
+ case 0:
+ *ana->outlen = 1;
+ break;
+ case 1:
+ *ana->outlen = 2;
+ break;
+ }
+}
+
+/*
+ * Parent or Child Link
+ */
+static int
+cd9660_rrip_pclink(p,ana)
+ ISO_RRIP_CLINK *p;
+ ISO_RRIP_ANALYZE *ana;
+{
+ *ana->inump = isonum_733(p->dir_loc) << ana->imp->im_bshift;
+ ana->fields &= ~(ISO_SUSP_CLINK|ISO_SUSP_PLINK);
+ return *p->h.type == 'C' ? ISO_SUSP_CLINK : ISO_SUSP_PLINK;
+}
+
+/*
+ * Relocated directory
+ */
+static int
+cd9660_rrip_reldir(p,ana)
+ ISO_RRIP_RELDIR *p;
+ ISO_RRIP_ANALYZE *ana;
+{
+ /* special hack to make caller aware of RE field */
+ *ana->outlen = 0;
+ ana->fields = 0;
+ return ISO_SUSP_RELDIR|ISO_SUSP_ALTNAME|ISO_SUSP_CLINK|ISO_SUSP_PLINK;
+}
+
+static int
+cd9660_rrip_tstamp(p,ana)
+ ISO_RRIP_TSTAMP *p;
+ ISO_RRIP_ANALYZE *ana;
+{
+ unsigned char *ptime;
+
+ ptime = p->time;
+
+ /* Check a format of time stamp (7bytes/17bytes) */
+ if (!(*p->flags&ISO_SUSP_TSTAMP_FORM17)) {
+ if (*p->flags&ISO_SUSP_TSTAMP_CREAT)
+ ptime += 7;
+
+ if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) {
+ cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_mtime);
+ ptime += 7;
+ } else
+ bzero(&ana->inop->inode.iso_mtime,sizeof(struct timeval));
+
+ if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) {
+ cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_atime);
+ ptime += 7;
+ } else
+ ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime;
+
+ if (*p->flags&ISO_SUSP_TSTAMP_ATTR)
+ cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_ctime);
+ else
+ ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime;
+
+ } else {
+ if (*p->flags&ISO_SUSP_TSTAMP_CREAT)
+ ptime += 17;
+
+ if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) {
+ cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_mtime);
+ ptime += 17;
+ } else
+ bzero(&ana->inop->inode.iso_mtime,sizeof(struct timeval));
+
+ if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) {
+ cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_atime);
+ ptime += 17;
+ } else
+ ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime;
+
+ if (*p->flags&ISO_SUSP_TSTAMP_ATTR)
+ cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_ctime);
+ else
+ ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime;
+
+ }
+ ana->fields &= ~ISO_SUSP_TSTAMP;
+ return ISO_SUSP_TSTAMP;
+}
+
+static void
+cd9660_rrip_deftstamp(isodir,ana)
+ struct iso_directory_record *isodir;
+ ISO_RRIP_ANALYZE *ana;
+{
+ cd9660_deftstamp(isodir,ana->inop,NULL);
+}
+
+/*
+ * POSIX device modes
+ */
+static int
+cd9660_rrip_device(p,ana)
+ ISO_RRIP_DEVICE *p;
+ ISO_RRIP_ANALYZE *ana;
+{
+ unsigned high, low;
+
+ high = isonum_733(p->dev_t_high_l);
+ low = isonum_733(p->dev_t_low_l);
+
+ if ( high == 0 ) {
+ ana->inop->inode.iso_rdev = makedev( major(low), minor(low) );
+ } else {
+ ana->inop->inode.iso_rdev = makedev( high, minor(low) );
+ }
+ ana->fields &= ~ISO_SUSP_DEVICE;
+ return ISO_SUSP_DEVICE;
+}
+
+/*
+ * Flag indicating
+ */
+static int
+cd9660_rrip_idflag(p,ana)
+ ISO_RRIP_IDFLAG *p;
+ ISO_RRIP_ANALYZE *ana;
+{
+ ana->fields &= isonum_711(p->flags)|~0xff; /* don't touch high bits */
+ /* special handling of RE field */
+ if (ana->fields&ISO_SUSP_RELDIR)
+ return cd9660_rrip_reldir(p,ana);
+
+ return ISO_SUSP_IDFLAG;
+}
+
+/*
+ * Continuation pointer
+ */
+static int
+cd9660_rrip_cont(p,ana)
+ ISO_RRIP_CONT *p;
+ ISO_RRIP_ANALYZE *ana;
+{
+ ana->iso_ce_blk = isonum_733(p->location);
+ ana->iso_ce_off = isonum_733(p->offset);
+ ana->iso_ce_len = isonum_733(p->length);
+ return ISO_SUSP_CONT;
+}
+
+/*
+ * System Use end
+ */
+static int
+cd9660_rrip_stop(p,ana)
+ ISO_SUSP_HEADER *p;
+ ISO_RRIP_ANALYZE *ana;
+{
+ /* stop analyzing */
+ ana->fields = 0;
+ return ISO_SUSP_STOP;
+}
+
+/*
+ * Extension reference
+ */
+static int
+cd9660_rrip_extref(p,ana)
+ ISO_RRIP_EXTREF *p;
+ ISO_RRIP_ANALYZE *ana;
+{
+ if (isonum_711(p->len_id) != 10
+ || bcmp((char *)p + 8,"RRIP_1991A",10)
+ || isonum_711(p->version) != 1)
+ return 0;
+ ana->fields &= ~ISO_SUSP_EXTREF;
+ return ISO_SUSP_EXTREF;
+}
+
+typedef struct {
+ char type[2];
+ int (*func)();
+ void (*func2)();
+ int result;
+} RRIP_TABLE;
+
+static int
+cd9660_rrip_loop(isodir,ana,table)
+ struct iso_directory_record *isodir;
+ ISO_RRIP_ANALYZE *ana;
+ RRIP_TABLE *table;
+{
+ register RRIP_TABLE *ptable;
+ register ISO_SUSP_HEADER *phead;
+ register ISO_SUSP_HEADER *pend;
+ struct buf *bp = NULL;
+ int i;
+ char *pwhead;
+ int result;
+
+ /*
+ * Note: If name length is odd,
+ * it will be padding 1 byte after the name
+ */
+ pwhead = isodir->name + isonum_711(isodir->name_len);
+ if (!(isonum_711(isodir->name_len)&1))
+ pwhead++;
+
+ /* If it's not the '.' entry of the root dir obey SP field */
+ if (*isodir->name != 0
+ || isonum_733(isodir->extent) != ana->imp->root_extent)
+ pwhead += ana->imp->rr_skip;
+ else
+ pwhead += ana->imp->rr_skip0;
+
+ phead = (ISO_SUSP_HEADER *)pwhead;
+ pend = (ISO_SUSP_HEADER *)((char *)isodir + isonum_711(isodir->length));
+
+ result = 0;
+ while (1) {
+ ana->iso_ce_len = 0;
+ /*
+ * Note: "pend" should be more than one SUSP header
+ */
+ while (pend >= phead + 1) {
+ if (isonum_711(phead->version) == 1) {
+ for (ptable = table; ptable->func; ptable++) {
+ if (*phead->type == *ptable->type
+ && phead->type[1] == ptable->type[1]) {
+ result |= ptable->func(phead,ana);
+ break;
+ }
+ }
+ if (!ana->fields)
+ break;
+ }
+ /*
+ * move to next SUSP
+ * Hopefully this works with newer versions, too
+ */
+ phead = (ISO_SUSP_HEADER *)((char *)phead + isonum_711(phead->length));
+ }
+
+ if ( ana->fields && ana->iso_ce_len ) {
+ if (ana->iso_ce_blk >= ana->imp->volume_space_size
+ || ana->iso_ce_off + ana->iso_ce_len > ana->imp->logical_block_size
+ || bread(ana->imp->im_devvp,
+ ana->iso_ce_blk * ana->imp->logical_block_size / DEV_BSIZE,
+ ana->imp->logical_block_size,NOCRED,&bp))
+ /* what to do now? */
+ break;
+ phead = (ISO_SUSP_HEADER *)(bp->b_un.b_addr + ana->iso_ce_off);
+ pend = (ISO_SUSP_HEADER *) ((char *)phead + ana->iso_ce_len);
+ } else
+ break;
+ }
+ if (bp)
+ brelse(bp);
+ /*
+ * If we don't find the Basic SUSP stuffs, just set default value
+ * ( attribute/time stamp )
+ */
+ for (ptable = table; ptable->func2; ptable++)
+ if (!(ptable->result&result))
+ ptable->func2(isodir,ana);
+
+ return result;
+}
+
+static RRIP_TABLE rrip_table_analyze[] = {
+ { "PX", cd9660_rrip_attr, cd9660_rrip_defattr, ISO_SUSP_ATTR },
+ { "TF", cd9660_rrip_tstamp, cd9660_rrip_deftstamp, ISO_SUSP_TSTAMP },
+ { "PN", cd9660_rrip_device, 0, ISO_SUSP_DEVICE },
+ { "RR", cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
+ { "CE", cd9660_rrip_cont, 0, ISO_SUSP_CONT },
+ { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP },
+ { "", 0, 0, 0 }
+};
+
+int
+cd9660_rrip_analyze(isodir,inop,imp)
+ struct iso_directory_record *isodir;
+ struct iso_node *inop;
+ struct iso_mnt *imp;
+{
+ ISO_RRIP_ANALYZE analyze;
+
+ analyze.inop = inop;
+ analyze.imp = imp;
+ analyze.fields = ISO_SUSP_ATTR|ISO_SUSP_TSTAMP|ISO_SUSP_DEVICE;
+
+ return cd9660_rrip_loop(isodir,&analyze,rrip_table_analyze);
+}
+
+/*
+ * Get Alternate Name from 'AL' record
+ * If either no AL record or 0 length,
+ * it will be return the translated ISO9660 name,
+ */
+static RRIP_TABLE rrip_table_getname[] = {
+ { "NM", cd9660_rrip_altname, cd9660_rrip_defname, ISO_SUSP_ALTNAME },
+ { "CL", cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK },
+ { "PL", cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK },
+ { "RE", cd9660_rrip_reldir, 0, ISO_SUSP_RELDIR },
+ { "RR", cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
+ { "CE", cd9660_rrip_cont, 0, ISO_SUSP_CONT },
+ { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP },
+ { "", 0, 0, 0 }
+};
+
+int
+cd9660_rrip_getname(isodir,outbuf,outlen,inump,imp)
+ struct iso_directory_record *isodir;
+ char *outbuf;
+ u_short *outlen;
+ ino_t *inump;
+ struct iso_mnt *imp;
+{
+ ISO_RRIP_ANALYZE analyze;
+ RRIP_TABLE *tab;
+
+ analyze.outbuf = outbuf;
+ analyze.outlen = outlen;
+ analyze.maxlen = NAME_MAX;
+ analyze.inump = inump;
+ analyze.imp = imp;
+ analyze.fields = ISO_SUSP_ALTNAME|ISO_SUSP_RELDIR|ISO_SUSP_CLINK|ISO_SUSP_PLINK;
+ *outlen = 0;
+
+ tab = rrip_table_getname;
+ if (*isodir->name == 0
+ || *isodir->name == 1) {
+ cd9660_rrip_defname(isodir,&analyze);
+
+ analyze.fields &= ~ISO_SUSP_ALTNAME;
+ tab++;
+ }
+
+ return cd9660_rrip_loop(isodir,&analyze,tab);
+}
+
+/*
+ * Get Symbolic Name from 'SL' record
+ *
+ * Note: isodir should contains SL record!
+ */
+static RRIP_TABLE rrip_table_getsymname[] = {
+ { "SL", cd9660_rrip_slink, 0, ISO_SUSP_SLINK },
+ { "RR", cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
+ { "CE", cd9660_rrip_cont, 0, ISO_SUSP_CONT },
+ { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP },
+ { "", 0, 0, 0 }
+};
+
+int
+cd9660_rrip_getsymname(isodir,outbuf,outlen,imp)
+ struct iso_directory_record *isodir;
+ char *outbuf;
+ u_short *outlen;
+ struct iso_mnt *imp;
+{
+ ISO_RRIP_ANALYZE analyze;
+
+ analyze.outbuf = outbuf;
+ analyze.outlen = outlen;
+ *outlen = 0;
+ analyze.maxlen = MAXPATHLEN;
+ analyze.cont = 1; /* don't start with a slash */
+ analyze.imp = imp;
+ analyze.fields = ISO_SUSP_SLINK;
+
+ return (cd9660_rrip_loop(isodir,&analyze,rrip_table_getsymname)&ISO_SUSP_SLINK);
+}
+
+static RRIP_TABLE rrip_table_extref[] = {
+ { "ER", cd9660_rrip_extref, 0, ISO_SUSP_EXTREF },
+ { "CE", cd9660_rrip_cont, 0, ISO_SUSP_CONT },
+ { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP },
+ { "", 0, 0, 0 }
+};
+
+/*
+ * Check for Rock Ridge Extension and return offset of its fields.
+ * Note: We require the ER field.
+ */
+int
+cd9660_rrip_offset(isodir,imp)
+ struct iso_directory_record *isodir;
+ struct iso_mnt *imp;
+{
+ ISO_RRIP_OFFSET *p;
+ ISO_RRIP_ANALYZE analyze;
+
+ imp->rr_skip0 = 0;
+ p = (ISO_RRIP_OFFSET *)(isodir->name + 1);
+ if (bcmp(p,"SP\7\1\276\357",6)) {
+ /* Maybe, it's a CDROM XA disc? */
+ imp->rr_skip0 = 15;
+ p = (ISO_RRIP_OFFSET *)((char *)p + 15);
+ if (bcmp(p,"SP\7\1\276\357",6))
+ return -1;
+ }
+
+ analyze.imp = imp;
+ analyze.fields = ISO_SUSP_EXTREF;
+ if (!(cd9660_rrip_loop(isodir,&analyze,rrip_table_extref)&ISO_SUSP_EXTREF))
+ return -1;
+
+ return isonum_711(p->skip);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-05 14:04:36 +0000