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freebsd-nq/usr.sbin/makefs/cd9660/iso9660_rrip.c
Olivier Houchard 01a0f8531a Sync with the latest version from NetBSD. It notably addds ISO9660 support. 
Submitted by:	bapt
2010-11-07 16:05:04 +00:00

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/* $NetBSD: iso9660_rrip.c,v 1.8 2009/01/10 22:06:29 bjh21 Exp $ */
/*
* Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
* Perez-Rathke and Ram Vedam. All rights reserved.
*
* This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
* Alan Perez-Rathke and Ram Vedam.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN
* GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``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 DANIEL WATT, WALTER DEIGNAN, RYAN
* GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM 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.
*/
/* This will hold all the function definitions
* defined in iso9660_rrip.h
*/
#include "makefs.h"
#include "cd9660.h"
#include "iso9660_rrip.h"
#include <sys/queue.h>
#include <stdio.h>
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
static void cd9660_rrip_initialize_inode(cd9660node *);
static int cd9660_susp_handle_continuation(cd9660node *);
static int cd9660_susp_handle_continuation_common(cd9660node *, int);
int
cd9660_susp_initialize(cd9660node *node, cd9660node *parent,
cd9660node *grandparent)
{
cd9660node *cn;
int r;
/* Make sure the node is not NULL. If it is, there are major problems */
assert(node != NULL);
if (!(node->type & CD9660_TYPE_DOT) &&
!(node->type & CD9660_TYPE_DOTDOT))
TAILQ_INIT(&(node->head));
if (node->dot_record != 0)
TAILQ_INIT(&(node->dot_record->head));
if (node->dot_dot_record != 0)
TAILQ_INIT(&(node->dot_dot_record->head));
/* SUSP specific entries here */
if ((r = cd9660_susp_initialize_node(node)) < 0)
return r;
/* currently called cd9660node_rrip_init_links */
r = cd9660_rrip_initialize_node(node, parent, grandparent);
if (r < 0)
return r;
/*
* See if we need a CE record, and set all of the
* associated counters.
*
* This should be called after all extensions. After
* this is called, no new records should be added.
*/
if ((r = cd9660_susp_handle_continuation(node)) < 0)
return r;
/* Recurse on children. */
TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
if ((r = cd9660_susp_initialize(cn, node, parent)) < 0)
return 0;
}
return 1;
}
int
cd9660_susp_finalize(cd9660node *node)
{
cd9660node *temp;
int r;
assert(node != NULL);
if (node == diskStructure.rootNode)
diskStructure.susp_continuation_area_current_free = 0;
if ((r = cd9660_susp_finalize_node(node)) < 0)
return r;
if ((r = cd9660_rrip_finalize_node(node)) < 0)
return r;
TAILQ_FOREACH(temp, &node->cn_children, cn_next_child) {
if ((r = cd9660_susp_finalize(temp)) < 0)
return r;
}
return 1;
}
/*
* If we really wanted to speed things up, we could have some sort of
* lookup table on the SUSP entry type that calls a functor. Or, we could
* combine the functions. These functions are kept separate to allow
* easier addition of other extensions.
* For the sake of simplicity and clarity, we won't be doing that for now.
*/
/*
* SUSP needs to update the following types:
* CE (continuation area)
*/
int
cd9660_susp_finalize_node(cd9660node *node)
{
struct ISO_SUSP_ATTRIBUTES *t;
/* Handle CE counters */
if (node->susp_entry_ce_length > 0) {
node->susp_entry_ce_start =
diskStructure.susp_continuation_area_current_free;
diskStructure.susp_continuation_area_current_free +=
node->susp_entry_ce_length;
}
TAILQ_FOREACH(t, &node->head, rr_ll) {
if (t->susp_type != SUSP_TYPE_SUSP ||
t->entry_type != SUSP_ENTRY_SUSP_CE)
continue;
cd9660_bothendian_dword(
diskStructure.
susp_continuation_area_start_sector,
t->attr.su_entry.CE.ca_sector);
cd9660_bothendian_dword(
diskStructure.
susp_continuation_area_start_sector,
t->attr.su_entry.CE.ca_sector);
cd9660_bothendian_dword(node->susp_entry_ce_start,
t->attr.su_entry.CE.offset);
cd9660_bothendian_dword(node->susp_entry_ce_length,
t->attr.su_entry.CE.length);
}
return 0;
}
int
cd9660_rrip_finalize_node(cd9660node *node)
{
struct ISO_SUSP_ATTRIBUTES *t;
TAILQ_FOREACH(t, &node->head, rr_ll) {
if (t->susp_type != SUSP_TYPE_RRIP)
continue;
switch (t->entry_type) {
case SUSP_ENTRY_RRIP_CL:
/* Look at rr_relocated*/
if (node->rr_relocated == NULL)
return -1;
cd9660_bothendian_dword(
node->rr_relocated->fileDataSector,
(unsigned char *)
t->attr.rr_entry.CL.dir_loc);
break;
case SUSP_ENTRY_RRIP_PL:
/* Look at rr_real_parent */
if (node->rr_real_parent == NULL)
return -1;
cd9660_bothendian_dword(
node->rr_real_parent->fileDataSector,
(unsigned char *)
t->attr.rr_entry.PL.dir_loc);
break;
}
}
return 0;
}
static int
cd9660_susp_handle_continuation_common(cd9660node *node, int space)
{
int ca_used, susp_used, susp_used_pre_ce, working;
struct ISO_SUSP_ATTRIBUTES *temp, *pre_ce, *last, *CE, *ST;
pre_ce = last = NULL;
working = 254 - space;
if (node->su_tail_size > 0)
/* Allow 4 bytes for "ST" record. */
working -= node->su_tail_size + 4;
/* printf("There are %i bytes to work with\n",working); */
susp_used_pre_ce = susp_used = 0;
ca_used = 0;
TAILQ_FOREACH(temp, &node->head, rr_ll) {
if (working < 0)
break;
/*
* printf("SUSP Entry found, length is %i\n",
* CD9660_SUSP_ENTRY_SIZE(temp));
*/
working -= CD9660_SUSP_ENTRY_SIZE(temp);
if (working >= 0) {
last = temp;
susp_used += CD9660_SUSP_ENTRY_SIZE(temp);
}
if (working >= 28) {
/*
* Remember the last entry after which we
* could insert a "CE" entry.
*/
pre_ce = last;
susp_used_pre_ce = susp_used;
}
}
/* A CE entry is needed */
if (working <= 0) {
CE = cd9660node_susp_create_node(SUSP_TYPE_SUSP,
SUSP_ENTRY_SUSP_CE, "CE", SUSP_LOC_ENTRY);
cd9660_susp_ce(CE, node);
/* This will automatically insert at the appropriate location */
if (pre_ce != NULL)
TAILQ_INSERT_AFTER(&node->head, pre_ce, CE, rr_ll);
else
TAILQ_INSERT_HEAD(&node->head, CE, rr_ll);
last = CE;
susp_used = susp_used_pre_ce + 28;
/* Count how much CA data is necessary */
for (temp = TAILQ_NEXT(last, rr_ll); temp != NULL;
temp = TAILQ_NEXT(temp, rr_ll)) {
ca_used += CD9660_SUSP_ENTRY_SIZE(temp);
}
}
/* An ST entry is needed */
if (node->su_tail_size > 0) {
ST = cd9660node_susp_create_node(SUSP_TYPE_SUSP,
SUSP_ENTRY_SUSP_ST, "ST", SUSP_LOC_ENTRY);
cd9660_susp_st(ST, node);
if (last != NULL)
TAILQ_INSERT_AFTER(&node->head, last, ST, rr_ll);
else
TAILQ_INSERT_HEAD(&node->head, ST, rr_ll);
last = ST;
susp_used += 4;
}
if (last != NULL)
last->last_in_suf = 1;
node->susp_entry_size = susp_used;
node->susp_entry_ce_length = ca_used;
diskStructure.susp_continuation_area_size += ca_used;
return 1;
}
/* See if a continuation entry is needed for each of the different types */
static int
cd9660_susp_handle_continuation(cd9660node *node)
{
assert (node != NULL);
/* Entry */
if (cd9660_susp_handle_continuation_common(
node,(int)(node->isoDirRecord->length[0])) < 0)
return 0;
return 1;
}
int
cd9660_susp_initialize_node(cd9660node *node)
{
struct ISO_SUSP_ATTRIBUTES *temp;
/*
* Requirements/notes:
* CE: is added for us where needed
* ST: not sure if it is even required, but if so, should be
* handled by the CE code
* PD: isnt needed (though might be added for testing)
* SP: is stored ONLY on the . record of the root directory
* ES: not sure
*/
/* Check for root directory, add SP and ER if needed. */
if (node->type & CD9660_TYPE_DOT) {
if (node->parent == diskStructure.rootNode) {
temp = cd9660node_susp_create_node(SUSP_TYPE_SUSP,
SUSP_ENTRY_SUSP_SP, "SP", SUSP_LOC_DOT);
cd9660_susp_sp(temp, node);
/* Should be first entry. */
TAILQ_INSERT_HEAD(&node->head, temp, rr_ll);
}
}
return 1;
}
static void
cd9660_rrip_initialize_inode(cd9660node *node)
{
struct ISO_SUSP_ATTRIBUTES *attr;
/*
* Inode dependent values - this may change,
* but for now virtual files and directories do
* not have an inode structure
*/
if ((node->node != NULL) && (node->node->inode != NULL)) {
/* PX - POSIX attributes */
attr = cd9660node_susp_create_node(SUSP_TYPE_RRIP,
SUSP_ENTRY_RRIP_PX, "PX", SUSP_LOC_ENTRY);
cd9660node_rrip_px(attr, node->node);
TAILQ_INSERT_TAIL(&node->head, attr, rr_ll);
/* TF - timestamp */
attr = cd9660node_susp_create_node(SUSP_TYPE_RRIP,
SUSP_ENTRY_RRIP_TF, "TF", SUSP_LOC_ENTRY);
cd9660node_rrip_tf(attr, node->node);
TAILQ_INSERT_TAIL(&node->head, attr, rr_ll);
/* SL - Symbolic link */
/* ?????????? Dan - why is this here? */
if (TAILQ_EMPTY(&node->cn_children) &&
node->node->inode != NULL &&
S_ISLNK(node->node->inode->st.st_mode))
cd9660_createSL(node);
/* PN - device number */
if (node->node->inode != NULL &&
((S_ISCHR(node->node->inode->st.st_mode) ||
S_ISBLK(node->node->inode->st.st_mode)))) {
attr =
cd9660node_susp_create_node(SUSP_TYPE_RRIP,
SUSP_ENTRY_RRIP_PN, "PN",
SUSP_LOC_ENTRY);
cd9660node_rrip_pn(attr, node->node);
TAILQ_INSERT_TAIL(&node->head, attr, rr_ll);
}
}
}
int
cd9660_rrip_initialize_node(cd9660node *node, cd9660node *parent,
cd9660node *grandparent)
{
struct ISO_SUSP_ATTRIBUTES *current = NULL;
assert(node != NULL);
if (node->type & CD9660_TYPE_DOT) {
/*
* Handle ER - should be the only entry to appear on
* a "." record
*/
if (node->parent == diskStructure.rootNode) {
cd9660_susp_ER(node, 1, SUSP_RRIP_ER_EXT_ID,
SUSP_RRIP_ER_EXT_DES, SUSP_RRIP_ER_EXT_SRC);
}
if (parent != NULL && parent->node != NULL &&
parent->node->inode != NULL) {
/* PX - POSIX attributes */
current = cd9660node_susp_create_node(SUSP_TYPE_RRIP,
SUSP_ENTRY_RRIP_PX, "PX", SUSP_LOC_ENTRY);
cd9660node_rrip_px(current, parent->node);
TAILQ_INSERT_TAIL(&node->head, current, rr_ll);
}
} else if (node->type & CD9660_TYPE_DOTDOT) {
if (grandparent != NULL && grandparent->node != NULL &&
grandparent->node->inode != NULL) {
/* PX - POSIX attributes */
current = cd9660node_susp_create_node(SUSP_TYPE_RRIP,
SUSP_ENTRY_RRIP_PX, "PX", SUSP_LOC_ENTRY);
cd9660node_rrip_px(current, grandparent->node);
TAILQ_INSERT_TAIL(&node->head, current, rr_ll);
}
} else {
cd9660_rrip_initialize_inode(node);
/*
* Not every node needs a NM set - only if the name is
* actually different. IE: If a file is TEST -> TEST,
* no NM. test -> TEST, need a NM
*
* The rr_moved_dir needs to be assigned a NM record as well.
*/
if (node == diskStructure.rr_moved_dir) {
cd9660_rrip_add_NM(node, RRIP_DEFAULT_MOVE_DIR_NAME);
}
else if ((node->node != NULL) &&
((strlen(node->node->name) !=
(int)node->isoDirRecord->name_len[0]) ||
(memcmp(node->node->name,node->isoDirRecord->name,
(int) node->isoDirRecord->name_len[0]) != 0))) {
cd9660_rrip_NM(node);
}
/* Rock ridge directory relocation code here. */
/* First handle the CL for the placeholder file. */
if (node->rr_relocated != NULL) {
current = cd9660node_susp_create_node(SUSP_TYPE_RRIP,
SUSP_ENTRY_RRIP_CL, "CL", SUSP_LOC_ENTRY);
cd9660_rrip_CL(current, node);
TAILQ_INSERT_TAIL(&node->head, current, rr_ll);
}
/* Handle RE*/
if (node->rr_real_parent != NULL) {
current = cd9660node_susp_create_node(SUSP_TYPE_RRIP,
SUSP_ENTRY_RRIP_RE, "RE", SUSP_LOC_ENTRY);
cd9660_rrip_RE(current,node);
TAILQ_INSERT_TAIL(&node->head, current, rr_ll);
/* Handle PL */
current = cd9660node_susp_create_node(SUSP_TYPE_RRIP,
SUSP_ENTRY_RRIP_PL, "PL", SUSP_LOC_DOTDOT);
cd9660_rrip_PL(current,node->dot_dot_record);
TAILQ_INSERT_TAIL(&node->dot_dot_record->head, current,
rr_ll);
TAILQ_INSERT_TAIL(&node->head, current, rr_ll);
}
}
return 1;
}
struct ISO_SUSP_ATTRIBUTES*
cd9660node_susp_create_node(int susp_type, int entry_type, const char *type_id,
int write_loc)
{
struct ISO_SUSP_ATTRIBUTES* temp;
if ((temp = malloc(sizeof(struct ISO_SUSP_ATTRIBUTES))) == NULL) {
CD9660_MEM_ALLOC_ERROR("cd9660node_susp_create_node");
exit(1);
}
temp->susp_type = susp_type;
temp->entry_type = entry_type;
temp->last_in_suf = 0;
/* Phase this out */
temp->type_of[0] = type_id[0];
temp->type_of[1] = type_id[1];
temp->write_location = write_loc;
/*
* Since the first four bytes is common, lets go ahead and
* set the type identifier, since we are passing that to this
* function anyhow.
*/
temp->attr.su_entry.SP.h.type[0] = type_id[0];
temp->attr.su_entry.SP.h.type[1] = type_id[1];
return temp;
}
int
cd9660_rrip_PL(struct ISO_SUSP_ATTRIBUTES* p, cd9660node *node __unused)
{
p->attr.rr_entry.PL.h.length[0] = 12;
p->attr.rr_entry.PL.h.version[0] = 1;
return 1;
}
int
cd9660_rrip_CL(struct ISO_SUSP_ATTRIBUTES *p, cd9660node *node __unused)
{
p->attr.rr_entry.CL.h.length[0] = 12;
p->attr.rr_entry.CL.h.version[0] = 1;
return 1;
}
int
cd9660_rrip_RE(struct ISO_SUSP_ATTRIBUTES *p, cd9660node *node __unused)
{
p->attr.rr_entry.RE.h.length[0] = 0;
p->attr.rr_entry.RE.h.version[0] = 1;
return 1;
}
void
cd9660_createSL(cd9660node *node)
{
struct ISO_SUSP_ATTRIBUTES* current;
int path_count, dir_count, done, i, j, dir_copied;
char temp_cr[255];
char temp_sl[255]; /* used in copying continuation entry*/
char* sl_ptr;
sl_ptr = node->node->symlink;
done = 0;
path_count = 0;
dir_count = 0;
dir_copied = 0;
current = cd9660node_susp_create_node(SUSP_TYPE_RRIP,
SUSP_ENTRY_RRIP_SL, "SL", SUSP_LOC_ENTRY);
current->attr.rr_entry.SL.h.version[0] = 1;
current->attr.rr_entry.SL.flags[0] = SL_FLAGS_NONE;
if (*sl_ptr == '/') {
temp_cr[0] = SL_FLAGS_ROOT;
temp_cr[1] = 0;
memcpy(current->attr.rr_entry.SL.component + path_count,
temp_cr, 2);
path_count += 2;
sl_ptr++;
}
for (i = 0; i < (dir_count + 2); i++)
temp_cr[i] = '\0';
while (!done) {
while ((*sl_ptr != '/') && (*sl_ptr != '\0')) {
dir_copied = 1;
if (*sl_ptr == '.') {
if ((*(sl_ptr + 1) == '/') || (*(sl_ptr + 1)
== '\0')) {
temp_cr[0] = SL_FLAGS_CURRENT;
sl_ptr++;
} else if(*(sl_ptr + 1) == '.') {
if ((*(sl_ptr + 2) == '/') ||
(*(sl_ptr + 2) == '\0')) {
temp_cr[0] = SL_FLAGS_PARENT;
sl_ptr += 2;
}
} else {
temp_cr[dir_count+2] = *sl_ptr;
sl_ptr++;
dir_count++;
}
} else {
temp_cr[dir_count + 2] = *sl_ptr;
sl_ptr++;
dir_count++;
}
}
if ((path_count + dir_count) >= 249) {
current->attr.rr_entry.SL.flags[0] |= SL_FLAGS_CONTINUE;
j = 0;
if (path_count <= 249) {
while(j != (249 - path_count)) {
temp_sl[j] = temp_cr[j];
j++;
}
temp_sl[0] = SL_FLAGS_CONTINUE;
temp_sl[1] = j - 2;
memcpy(
current->attr.rr_entry.SL.component +
path_count,
temp_sl, j);
}
path_count += j;
current->attr.rr_entry.SL.h.length[0] = path_count + 5;
TAILQ_INSERT_TAIL(&node->head, current, rr_ll);
current= cd9660node_susp_create_node(SUSP_TYPE_RRIP,
SUSP_ENTRY_RRIP_SL, "SL", SUSP_LOC_ENTRY);
current->attr.rr_entry.SL.h.version[0] = 1;
current->attr.rr_entry.SL.flags[0] = SL_FLAGS_NONE;
path_count = 0;
if (dir_count > 2) {
while (j != dir_count + 2) {
current->attr.rr_entry.SL.component[
path_count + 2] = temp_cr[j];
j++;
path_count++;
}
current->attr.rr_entry.SL.component[1]
= path_count;
path_count+= 2;
} else {
while(j != dir_count) {
current->attr.rr_entry.SL.component[
path_count+2] = temp_cr[j];
j++;
path_count++;
}
}
} else {
if (dir_copied == 1) {
temp_cr[1] = dir_count;
memcpy(current->attr.rr_entry.SL.component +
path_count,
temp_cr, dir_count + 2);
path_count += dir_count + 2;
}
}
if (*sl_ptr == '\0') {
done = 1;
current->attr.rr_entry.SL.h.length[0] = path_count + 5;
TAILQ_INSERT_TAIL(&node->head, current, rr_ll);
} else {
sl_ptr++;
dir_count = 0;
dir_copied = 0;
for(i = 0; i < 255; i++) {
temp_cr[i] = '\0';
}
}
}
}
int
cd9660node_rrip_px(struct ISO_SUSP_ATTRIBUTES *v, fsnode *pxinfo)
{
v->attr.rr_entry.PX.h.length[0] = 36;
v->attr.rr_entry.PX.h.version[0] = 1;
cd9660_bothendian_dword(pxinfo->inode->st.st_mode,
v->attr.rr_entry.PX.mode);
cd9660_bothendian_dword(pxinfo->inode->st.st_nlink,
v->attr.rr_entry.PX.links);
cd9660_bothendian_dword(pxinfo->inode->st.st_uid,
v->attr.rr_entry.PX.uid);
cd9660_bothendian_dword(pxinfo->inode->st.st_gid,
v->attr.rr_entry.PX.gid);
/* Ignoring the serial number for now */
return 1;
}
int
cd9660node_rrip_pn(struct ISO_SUSP_ATTRIBUTES *pn_field, fsnode *fnode)
{
pn_field->attr.rr_entry.PN.h.length[0] = 20;
pn_field->attr.rr_entry.PN.h.version[0] = 1;
if (sizeof (fnode->inode->st.st_dev) > 32)
cd9660_bothendian_dword((uint64_t)fnode->inode->st.st_dev >> 32,
pn_field->attr.rr_entry.PN.high);
else
cd9660_bothendian_dword(0, pn_field->attr.rr_entry.PN.high);
cd9660_bothendian_dword(fnode->inode->st.st_dev & 0xffffffff,
pn_field->attr.rr_entry.PN.low);
return 1;
}
#if 0
int
cd9660node_rrip_nm(struct ISO_SUSP_ATTRIBUTES *p, cd9660node *file_node)
{
int nm_length = strlen(file_node->isoDirRecord->name) + 5;
p->attr.rr_entry.NM.h.type[0] = 'N';
p->attr.rr_entry.NM.h.type[1] = 'M';
sprintf(p->attr.rr_entry.NM.altname, "%s", file_node->isoDirRecord->name);
p->attr.rr_entry.NM.h.length[0] = (unsigned char)nm_length;
p->attr.rr_entry.NM.h.version[0] = (unsigned char)1;
p->attr.rr_entry.NM.flags[0] = (unsigned char) NM_PARENT;
return 1;
}
#endif
int
cd9660node_rrip_tf(struct ISO_SUSP_ATTRIBUTES *p, fsnode *_node)
{
p->attr.rr_entry.TF.flags[0] = TF_MODIFY | TF_ACCESS | TF_ATTRIBUTES;
p->attr.rr_entry.TF.h.length[0] = 4;
p->attr.rr_entry.TF.h.version[0] = 1;
/*
* Need to add creation time, backup time,
* expiration time, and effective time.
*/
cd9660_time_915(p->attr.rr_entry.TF.timestamp,
_node->inode->st.st_atime);
p->attr.rr_entry.TF.h.length[0] += 7;
cd9660_time_915(p->attr.rr_entry.TF.timestamp + 7,
_node->inode->st.st_mtime);
p->attr.rr_entry.TF.h.length[0] += 7;
cd9660_time_915(p->attr.rr_entry.TF.timestamp + 14,
_node->inode->st.st_ctime);
p->attr.rr_entry.TF.h.length[0] += 7;
return 1;
}
int
cd9660_susp_sp(struct ISO_SUSP_ATTRIBUTES *p, cd9660node *spinfo __unused)
{
p->attr.su_entry.SP.h.length[0] = 7;
p->attr.su_entry.SP.h.version[0] = 1;
p->attr.su_entry.SP.check[0] = 0xBE;
p->attr.su_entry.SP.check[1] = 0xEF;
p->attr.su_entry.SP.len_skp[0] = 0;
return 1;
}
int
cd9660_susp_st(struct ISO_SUSP_ATTRIBUTES *p, cd9660node *stinfo __unused)
{
p->attr.su_entry.ST.h.type[0] = 'S';
p->attr.su_entry.ST.h.type[1] = 'T';
p->attr.su_entry.ST.h.length[0] = 4;
p->attr.su_entry.ST.h.version[0] = 1;
return 1;
}
int
cd9660_susp_ce(struct ISO_SUSP_ATTRIBUTES *p, cd9660node *spinfo __unused)
{
p->attr.su_entry.CE.h.length[0] = 28;
p->attr.su_entry.CE.h.version[0] = 1;
/* Other attributes dont matter right now, will be updated later */
return 1;
}
int
cd9660_susp_pd(struct ISO_SUSP_ATTRIBUTES *p __unused, int length __unused)
{
return 1;
}
void
cd9660_rrip_add_NM(cd9660node *node, const char *name)
{
int working,len;
const char *p;
struct ISO_SUSP_ATTRIBUTES *r;
/*
* Each NM record has 254 byes to work with. This means that
* the name data itself only has 249 bytes to work with. So, a
* name with 251 characters would require two nm records.
*/
p = name;
working = 1;
while (working) {
r = cd9660node_susp_create_node(SUSP_TYPE_RRIP,
SUSP_ENTRY_RRIP_NM, "NM", SUSP_LOC_ENTRY);
r->attr.rr_entry.NM.h.version[0] = 1;
r->attr.rr_entry.NM.flags[0] = RRIP_NM_FLAGS_NONE;
len = strlen(p);
if (len > 249) {
len = 249;
r->attr.rr_entry.NM.flags[0] = RRIP_NM_FLAGS_CONTINUE;
} else {
working = 0;
}
memcpy(r->attr.rr_entry.NM.altname, p, len);
r->attr.rr_entry.NM.h.length[0] = 5 + len;
TAILQ_INSERT_TAIL(&node->head, r, rr_ll);
p += len;
}
}
void
cd9660_rrip_NM(cd9660node *node)
{
cd9660_rrip_add_NM(node, node->node->name);
}
struct ISO_SUSP_ATTRIBUTES*
cd9660_susp_ER(cd9660node *node,
u_char ext_version, const char* ext_id, const char* ext_des,
const char* ext_src)
{
int l;
struct ISO_SUSP_ATTRIBUTES *r;
r = cd9660node_susp_create_node(SUSP_TYPE_SUSP,
SUSP_ENTRY_SUSP_ER, "ER", SUSP_LOC_DOT);
/* Fixed data is 8 bytes */
r->attr.su_entry.ER.h.length[0] = 8;
r->attr.su_entry.ER.h.version[0] = 1;
r->attr.su_entry.ER.len_id[0] = (u_char)strlen(ext_id);
r->attr.su_entry.ER.len_des[0] = (u_char)strlen(ext_des);
r->attr.su_entry.ER.len_src[0] = (u_char)strlen(ext_src);
l = r->attr.su_entry.ER.len_id[0] +
r->attr.su_entry.ER.len_src[0] +
r->attr.su_entry.ER.len_des[0];
/* Everything must fit. */
assert(l + r->attr.su_entry.ER.h.length[0] <= 254);
r->attr.su_entry.ER.h.length[0] += (u_char)l;
r->attr.su_entry.ER.ext_ver[0] = ext_version;
memcpy(r->attr.su_entry.ER.ext_data, ext_id,
(int)r->attr.su_entry.ER.len_id[0]);
l = (int) r->attr.su_entry.ER.len_id[0];
memcpy(r->attr.su_entry.ER.ext_data + l,ext_des,
(int)r->attr.su_entry.ER.len_des[0]);
l += (int)r->attr.su_entry.ER.len_des[0];
memcpy(r->attr.su_entry.ER.ext_data + l,ext_src,
(int)r->attr.su_entry.ER.len_src[0]);
TAILQ_INSERT_TAIL(&node->head, r, rr_ll);
return r;
}
struct ISO_SUSP_ATTRIBUTES*
cd9660_susp_ES(struct ISO_SUSP_ATTRIBUTES *last __unused, cd9660node *node __unused)
{
return NULL;
}
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