76ca6f88da
The system hostname is now stored in prison0, and the global variable "hostname" has been removed, as has the hostname_mtx mutex. Jails may have their own host information, or they may inherit it from the parent/system. The proper way to read the hostname is via getcredhostname(), which will copy either the hostname associated with the passed cred, or the system hostname if you pass NULL. The system hostname can still be accessed directly (and without locking) at prison0.pr_host, but that should be avoided where possible. The "similar information" referred to is domainname, hostid, and hostuuid, which have also become prison parameters and had their associated global variables removed. Approved by: bz (mentor)
726 lines
18 KiB
C
726 lines
18 KiB
C
/*-
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* Copyright (c) 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley
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* by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
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* Support code is derived from software contributed to Berkeley
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* by Atsushi Murai (amurai@spec.co.jp).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)cd9660_rrip.c 8.6 (Berkeley) 12/5/94
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bio.h>
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#include <sys/buf.h>
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#include <sys/jail.h>
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <sys/kernel.h>
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#include <fs/cd9660/iso.h>
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#include <fs/cd9660/cd9660_node.h>
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#include <fs/cd9660/cd9660_rrip.h>
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#include <fs/cd9660/iso_rrip.h>
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typedef int rrt_func_t(void *, ISO_RRIP_ANALYZE *ana);
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typedef struct {
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char type[2];
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rrt_func_t *func;
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void (*func2)(struct iso_directory_record *isodir, ISO_RRIP_ANALYZE *ana);
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int result;
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} RRIP_TABLE;
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static int cd9660_rrip_altname(ISO_RRIP_ALTNAME *p, ISO_RRIP_ANALYZE *ana);
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static int cd9660_rrip_attr(ISO_RRIP_ATTR *p, ISO_RRIP_ANALYZE *ana);
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static int cd9660_rrip_cont(ISO_RRIP_CONT *p, ISO_RRIP_ANALYZE *ana);
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static void cd9660_rrip_defattr(struct iso_directory_record *isodir,
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ISO_RRIP_ANALYZE *ana);
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static void cd9660_rrip_defname(struct iso_directory_record *isodir,
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ISO_RRIP_ANALYZE *ana);
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static void cd9660_rrip_deftstamp(struct iso_directory_record *isodir,
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ISO_RRIP_ANALYZE *ana);
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static int cd9660_rrip_device(ISO_RRIP_DEVICE *p, ISO_RRIP_ANALYZE *ana);
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static int cd9660_rrip_extref(ISO_RRIP_EXTREF *p, ISO_RRIP_ANALYZE *ana);
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static int cd9660_rrip_idflag(ISO_RRIP_IDFLAG *p, ISO_RRIP_ANALYZE *ana);
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static int cd9660_rrip_loop(struct iso_directory_record *isodir,
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ISO_RRIP_ANALYZE *ana, RRIP_TABLE *table);
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static int cd9660_rrip_pclink(ISO_RRIP_CLINK *p, ISO_RRIP_ANALYZE *ana);
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static int cd9660_rrip_reldir(ISO_RRIP_RELDIR *p, ISO_RRIP_ANALYZE *ana);
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static int cd9660_rrip_slink(ISO_RRIP_SLINK *p, ISO_RRIP_ANALYZE *ana);
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static int cd9660_rrip_stop(ISO_SUSP_HEADER *p, ISO_RRIP_ANALYZE *ana);
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static int cd9660_rrip_tstamp(ISO_RRIP_TSTAMP *p, ISO_RRIP_ANALYZE *ana);
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/*
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* POSIX file attribute
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*/
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static int
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cd9660_rrip_attr(p,ana)
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ISO_RRIP_ATTR *p;
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ISO_RRIP_ANALYZE *ana;
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{
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ana->inop->inode.iso_mode = isonum_733(p->mode);
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ana->inop->inode.iso_uid = isonum_733(p->uid);
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ana->inop->inode.iso_gid = isonum_733(p->gid);
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ana->inop->inode.iso_links = isonum_733(p->links);
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ana->fields &= ~ISO_SUSP_ATTR;
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return ISO_SUSP_ATTR;
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}
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static void
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cd9660_rrip_defattr(isodir,ana)
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struct iso_directory_record *isodir;
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ISO_RRIP_ANALYZE *ana;
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{
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/* But this is a required field! */
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printf("RRIP without PX field?\n");
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cd9660_defattr(isodir,ana->inop,NULL,ISO_FTYPE_RRIP);
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}
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/*
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* Symbolic Links
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*/
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static int
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cd9660_rrip_slink(p,ana)
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ISO_RRIP_SLINK *p;
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ISO_RRIP_ANALYZE *ana;
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{
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ISO_RRIP_SLINK_COMPONENT *pcomp;
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ISO_RRIP_SLINK_COMPONENT *pcompe;
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int len, wlen, cont;
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char *outbuf, *inbuf;
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char hostbuf[MAXHOSTNAMELEN];
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pcomp = (ISO_RRIP_SLINK_COMPONENT *)p->component;
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pcompe = (ISO_RRIP_SLINK_COMPONENT *)((char *)p + isonum_711(p->h.length));
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len = *ana->outlen;
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outbuf = ana->outbuf;
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cont = ana->cont;
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/*
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* Gathering a Symbolic name from each component with path
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*/
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for (;
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pcomp < pcompe;
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pcomp = (ISO_RRIP_SLINK_COMPONENT *)((char *)pcomp + ISO_RRIP_SLSIZ
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+ isonum_711(pcomp->clen))) {
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if (!cont) {
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if (len < ana->maxlen) {
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len++;
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*outbuf++ = '/';
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}
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}
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cont = 0;
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inbuf = "..";
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wlen = 0;
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switch (*pcomp->cflag) {
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case ISO_SUSP_CFLAG_CURRENT:
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/* Inserting Current */
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wlen = 1;
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break;
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case ISO_SUSP_CFLAG_PARENT:
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/* Inserting Parent */
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wlen = 2;
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break;
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case ISO_SUSP_CFLAG_ROOT:
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/* Inserting slash for ROOT */
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/* Double slash, nothing really to do here. */
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break;
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case ISO_SUSP_CFLAG_VOLROOT:
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/* Inserting a mount point i.e. "/cdrom" */
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/* same as above */
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outbuf -= len;
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len = 0;
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inbuf = ana->imp->im_mountp->mnt_stat.f_mntonname;
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wlen = strlen(inbuf);
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break;
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case ISO_SUSP_CFLAG_HOST:
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/* Inserting hostname i.e. "kurt.tools.de" */
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getcredhostname(curthread->td_ucred, hostbuf,
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sizeof(hostbuf));
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inbuf = hostbuf;
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wlen = strlen(inbuf);
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break;
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case ISO_SUSP_CFLAG_CONTINUE:
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cont = 1;
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/* FALLTHROUGH */
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case 0:
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/* Inserting component */
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wlen = isonum_711(pcomp->clen);
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inbuf = pcomp->name;
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break;
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default:
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printf("RRIP with incorrect flags?");
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wlen = ana->maxlen + 1;
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break;
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}
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if (len + wlen > ana->maxlen) {
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/* indicate error to caller */
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ana->cont = 1;
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ana->fields = 0;
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ana->outbuf -= *ana->outlen;
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*ana->outlen = 0;
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return 0;
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}
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bcopy(inbuf,outbuf,wlen);
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outbuf += wlen;
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len += wlen;
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}
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ana->outbuf = outbuf;
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*ana->outlen = len;
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ana->cont = cont;
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if (!isonum_711(p->flags)) {
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ana->fields &= ~ISO_SUSP_SLINK;
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return ISO_SUSP_SLINK;
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}
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return 0;
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}
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/*
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* Alternate name
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*/
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static int
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cd9660_rrip_altname(p,ana)
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ISO_RRIP_ALTNAME *p;
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ISO_RRIP_ANALYZE *ana;
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{
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char *inbuf;
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int wlen;
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int cont;
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char hostbuf[MAXHOSTNAMELEN];
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inbuf = "..";
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wlen = 0;
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cont = 0;
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switch (*p->flags) {
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case ISO_SUSP_CFLAG_CURRENT:
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/* Inserting Current */
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wlen = 1;
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break;
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case ISO_SUSP_CFLAG_PARENT:
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/* Inserting Parent */
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wlen = 2;
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break;
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case ISO_SUSP_CFLAG_HOST:
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/* Inserting hostname i.e. "kurt.tools.de" */
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getcredhostname(curthread->td_ucred, hostbuf, sizeof(hostbuf));
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inbuf = hostbuf;
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wlen = strlen(inbuf);
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break;
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case ISO_SUSP_CFLAG_CONTINUE:
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cont = 1;
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/* FALLTHROUGH */
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case 0:
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/* Inserting component */
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wlen = isonum_711(p->h.length) - 5;
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inbuf = (char *)p + 5;
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break;
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default:
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printf("RRIP with incorrect NM flags?\n");
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wlen = ana->maxlen + 1;
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break;
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}
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if ((*ana->outlen += wlen) > ana->maxlen) {
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/* treat as no name field */
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ana->fields &= ~ISO_SUSP_ALTNAME;
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ana->outbuf -= *ana->outlen - wlen;
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*ana->outlen = 0;
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return 0;
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}
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bcopy(inbuf,ana->outbuf,wlen);
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ana->outbuf += wlen;
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if (!cont) {
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ana->fields &= ~ISO_SUSP_ALTNAME;
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return ISO_SUSP_ALTNAME;
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}
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return 0;
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}
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static void
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cd9660_rrip_defname(isodir,ana)
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struct iso_directory_record *isodir;
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ISO_RRIP_ANALYZE *ana;
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{
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isofntrans(isodir->name,isonum_711(isodir->name_len),
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ana->outbuf,ana->outlen,
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1,isonum_711(isodir->flags)&4, ana->imp->joliet_level,
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ana->imp->im_flags, ana->imp->im_d2l);
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switch (*ana->outbuf) {
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default:
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break;
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case 1:
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*ana->outlen = 2;
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/* FALLTHROUGH */
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case 0:
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/* outlen is 1 already */
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strcpy(ana->outbuf,"..");
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break;
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}
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}
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/*
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* Parent or Child Link
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*/
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static int
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cd9660_rrip_pclink(p,ana)
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ISO_RRIP_CLINK *p;
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ISO_RRIP_ANALYZE *ana;
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{
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*ana->inump = isonum_733(p->dir_loc) << ana->imp->im_bshift;
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ana->fields &= ~(ISO_SUSP_CLINK|ISO_SUSP_PLINK);
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return *p->h.type == 'C' ? ISO_SUSP_CLINK : ISO_SUSP_PLINK;
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}
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/*
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* Relocated directory
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*/
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static int
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cd9660_rrip_reldir(p,ana)
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ISO_RRIP_RELDIR *p;
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ISO_RRIP_ANALYZE *ana;
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{
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/* special hack to make caller aware of RE field */
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*ana->outlen = 0;
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ana->fields = 0;
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return ISO_SUSP_RELDIR|ISO_SUSP_ALTNAME|ISO_SUSP_CLINK|ISO_SUSP_PLINK;
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}
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static int
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cd9660_rrip_tstamp(p,ana)
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ISO_RRIP_TSTAMP *p;
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ISO_RRIP_ANALYZE *ana;
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{
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u_char *ptime;
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ptime = p->time;
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/* Check a format of time stamp (7bytes/17bytes) */
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if (!(*p->flags&ISO_SUSP_TSTAMP_FORM17)) {
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if (*p->flags&ISO_SUSP_TSTAMP_CREAT)
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ptime += 7;
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if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) {
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cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_mtime,
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ISO_FTYPE_RRIP);
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ptime += 7;
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} else
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bzero(&ana->inop->inode.iso_mtime,sizeof(struct timespec));
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if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) {
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cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_atime,
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ISO_FTYPE_RRIP);
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ptime += 7;
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} else
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ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime;
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if (*p->flags&ISO_SUSP_TSTAMP_ATTR)
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cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_ctime,
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ISO_FTYPE_RRIP);
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else
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ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime;
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} else {
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if (*p->flags&ISO_SUSP_TSTAMP_CREAT)
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ptime += 17;
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if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) {
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cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_mtime);
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ptime += 17;
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} else
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bzero(&ana->inop->inode.iso_mtime,sizeof(struct timespec));
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if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) {
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cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_atime);
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ptime += 17;
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} else
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ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime;
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if (*p->flags&ISO_SUSP_TSTAMP_ATTR)
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cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_ctime);
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else
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ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime;
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}
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ana->fields &= ~ISO_SUSP_TSTAMP;
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return ISO_SUSP_TSTAMP;
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}
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static void
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cd9660_rrip_deftstamp(isodir,ana)
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struct iso_directory_record *isodir;
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ISO_RRIP_ANALYZE *ana;
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{
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cd9660_deftstamp(isodir,ana->inop,NULL,ISO_FTYPE_RRIP);
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}
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/*
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* POSIX device modes
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*/
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static int
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cd9660_rrip_device(p,ana)
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ISO_RRIP_DEVICE *p;
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ISO_RRIP_ANALYZE *ana;
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{
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u_int high, low;
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high = isonum_733(p->dev_t_high);
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low = isonum_733(p->dev_t_low);
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if (high == 0)
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ana->inop->inode.iso_rdev = makedev(major(low), minor(low));
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else
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ana->inop->inode.iso_rdev = makedev(high, minor(low));
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ana->fields &= ~ISO_SUSP_DEVICE;
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return ISO_SUSP_DEVICE;
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}
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/*
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* Flag indicating
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*/
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static int
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cd9660_rrip_idflag(p,ana)
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ISO_RRIP_IDFLAG *p;
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ISO_RRIP_ANALYZE *ana;
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{
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ana->fields &= isonum_711(p->flags)|~0xff; /* don't touch high bits */
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/* special handling of RE field */
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if (ana->fields&ISO_SUSP_RELDIR)
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return cd9660_rrip_reldir(/* XXX */ (ISO_RRIP_RELDIR *)p,ana);
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return ISO_SUSP_IDFLAG;
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}
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/*
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* Continuation pointer
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*/
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static int
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cd9660_rrip_cont(p,ana)
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ISO_RRIP_CONT *p;
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ISO_RRIP_ANALYZE *ana;
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{
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ana->iso_ce_blk = isonum_733(p->location);
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ana->iso_ce_off = isonum_733(p->offset);
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ana->iso_ce_len = isonum_733(p->length);
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return ISO_SUSP_CONT;
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}
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/*
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* System Use end
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*/
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static int
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cd9660_rrip_stop(p,ana)
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ISO_SUSP_HEADER *p;
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ISO_RRIP_ANALYZE *ana;
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{
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return ISO_SUSP_STOP;
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}
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/*
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* Extension reference
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*/
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static int
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cd9660_rrip_extref(p,ana)
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ISO_RRIP_EXTREF *p;
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ISO_RRIP_ANALYZE *ana;
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{
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if ( ! ((isonum_711(p->len_id) == 10
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&& bcmp((char *)p + 8,"RRIP_1991A",10) == 0)
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|| (isonum_711(p->len_id) == 10
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&& bcmp((char *)p + 8,"IEEE_P1282",10) == 0)
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|| (isonum_711(p->len_id) == 9
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&& bcmp((char *)p + 8,"IEEE_1282", 9) == 0))
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|| isonum_711(p->version) != 1)
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return 0;
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ana->fields &= ~ISO_SUSP_EXTREF;
|
|
return ISO_SUSP_EXTREF;
|
|
}
|
|
|
|
static int
|
|
cd9660_rrip_loop(isodir,ana,table)
|
|
struct iso_directory_record *isodir;
|
|
ISO_RRIP_ANALYZE *ana;
|
|
RRIP_TABLE *table;
|
|
{
|
|
RRIP_TABLE *ptable;
|
|
ISO_SUSP_HEADER *phead;
|
|
ISO_SUSP_HEADER *pend;
|
|
struct buf *bp = NULL;
|
|
char *pwhead;
|
|
u_short c;
|
|
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++;
|
|
isochar(isodir->name, pwhead, ana->imp->joliet_level, &c, NULL,
|
|
ana->imp->im_flags, ana->imp->im_d2l);
|
|
|
|
/* If it's not the '.' entry of the root dir obey SP field */
|
|
if (c != 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;
|
|
}
|
|
if (result&ISO_SUSP_STOP) {
|
|
result &= ~ISO_SUSP_STOP;
|
|
break;
|
|
}
|
|
/* plausibility check */
|
|
if (isonum_711(phead->length) < sizeof(*phead))
|
|
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->im_bshift - DEV_BSHIFT),
|
|
ana->imp->logical_block_size, NOCRED, &bp))
|
|
/* what to do now? */
|
|
break;
|
|
phead = (ISO_SUSP_HEADER *)(bp->b_data + 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;
|
|
}
|
|
|
|
/*
|
|
* Get Attributes.
|
|
*/
|
|
/*
|
|
* XXX the casts are bogus but will do for now.
|
|
*/
|
|
#define BC (rrt_func_t *)
|
|
static RRIP_TABLE rrip_table_analyze[] = {
|
|
{ "PX", BC cd9660_rrip_attr, cd9660_rrip_defattr, ISO_SUSP_ATTR },
|
|
{ "TF", BC cd9660_rrip_tstamp, cd9660_rrip_deftstamp, ISO_SUSP_TSTAMP },
|
|
{ "PN", BC cd9660_rrip_device, 0, ISO_SUSP_DEVICE },
|
|
{ "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
|
|
{ "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
|
|
{ "ST", BC 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.
|
|
*/
|
|
static RRIP_TABLE rrip_table_getname[] = {
|
|
{ "NM", BC cd9660_rrip_altname, cd9660_rrip_defname, ISO_SUSP_ALTNAME },
|
|
{ "CL", BC cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK },
|
|
{ "PL", BC cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK },
|
|
{ "RE", BC cd9660_rrip_reldir, 0, ISO_SUSP_RELDIR },
|
|
{ "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
|
|
{ "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
|
|
{ "ST", BC 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;
|
|
u_short c;
|
|
|
|
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;
|
|
|
|
isochar(isodir->name, isodir->name + isonum_711(isodir->name_len),
|
|
imp->joliet_level, &c, NULL, imp->im_flags, imp->im_d2l);
|
|
tab = rrip_table_getname;
|
|
if (c == 0 || c == 1) {
|
|
cd9660_rrip_defname(isodir,&analyze);
|
|
|
|
analyze.fields &= ~ISO_SUSP_ALTNAME;
|
|
tab++;
|
|
}
|
|
|
|
return cd9660_rrip_loop(isodir,&analyze,tab);
|
|
}
|
|
|
|
/*
|
|
* Get Symbolic Link.
|
|
*/
|
|
static RRIP_TABLE rrip_table_getsymname[] = {
|
|
{ "SL", BC cd9660_rrip_slink, 0, ISO_SUSP_SLINK },
|
|
{ "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG },
|
|
{ "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
|
|
{ "ST", BC 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", BC cd9660_rrip_extref, 0, ISO_SUSP_EXTREF },
|
|
{ "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT },
|
|
{ "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP },
|
|
{ "", 0, 0, 0 }
|
|
};
|
|
|
|
/*
|
|
* Check for Rock Ridge Extension and return offset of its fields.
|
|
* Note: We insist on 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);
|
|
}
|