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The great CD-ROM clean-up and rewrite, fixes #5134.

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This commit is contained in:
OBattler
2025-01-28 16:26:28 +01:00
parent 1cb17f7a3a
commit 90e1190c92
48 changed files with 9486 additions and 9389 deletions
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138
src/cdrom/cdrom_image_viso.c
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@@ -21,7 +21,9 @@
#define __STDC_FORMAT_MACROS
#include <ctype.h>
#include <inttypes.h>
#ifdef IMAGE_VISO_LOG
#include <stdarg.h>
#endif
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
@@ -29,15 +31,16 @@
#include <sys/stat.h>
#include <time.h>
#include <wchar.h>
#define HAVE_STDARG_H
#include <86box/86box.h>
#include <86box/bswap.h>
#include <86box/cdrom_image_backend.h>
#include <86box/cdrom.h>
#include <86box/cdrom_image.h>
#include <86box/cdrom_image_viso.h>
#include <86box/log.h>
#include <86box/path.h>
#include <86box/plat.h>
#include <86box/plat_dir.h>
#include <86box/version.h>
#include <86box/timer.h>
#include <86box/nvr.h>
#ifndef S_ISDIR
@@ -136,29 +139,30 @@ static const char rr_eid[] = "RRIP_1991A"; /* identifiers used in ER field for
static const char rr_edesc[] = "THE ROCK RIDGE INTERCHANGE PROTOCOL PROVIDES SUPPORT FOR POSIX FILE SYSTEM SEMANTICS.";
static int8_t tz_offset = 0;
#ifdef ENABLE_CDROM_IMAGE_VISO_LOG
int cdrom_image_viso_do_log = ENABLE_CDROM_IMAGE_VISO_LOG;
#ifdef IMAGE_VISO_LOG
int image_viso_do_log = IMAGE_VISO_LOG;
void
cdrom_image_viso_log(const char *fmt, ...)
image_viso_log(void *priv, const char *fmt, ...)
{
va_list ap;
if (cdrom_image_viso_do_log) {
if (image_viso_do_log) {
va_start(ap, fmt);
pclog_ex(fmt, ap);
log_out(priv, fmt, ap);
va_end(ap);
}
}
#else
# define cdrom_image_viso_log(fmt, ...)
# define image_viso_log(priv, fmt, ...)
#endif
static size_t
viso_pread(void *ptr, uint64_t offset, size_t size, size_t count, FILE *fp)
viso_pread(void *ptr, const uint64_t offset, const size_t size,
const size_t count, FILE *fp)
{
uint64_t cur_pos = ftello64(fp);
size_t ret = 0;
const uint64_t cur_pos = ftello64(fp);
size_t ret = 0;
if (fseeko64(fp, offset, SEEK_SET) != -1)
ret = fread(ptr, size, count, fp);
fseeko64(fp, cur_pos, SEEK_SET);
@@ -166,10 +170,11 @@ viso_pread(void *ptr, uint64_t offset, size_t size, size_t count, FILE *fp)
}
static size_t
viso_pwrite(const void *ptr, uint64_t offset, size_t size, size_t count, FILE *fp)
viso_pwrite(const void *ptr, const uint64_t offset, const size_t size,
const size_t count, FILE *fp)
{
uint64_t cur_pos = ftello64(fp);
size_t ret = 0;
const uint64_t cur_pos = ftello64(fp);
size_t ret = 0;
if (fseeko64(fp, offset, SEEK_SET) != -1)
ret = fwrite(ptr, size, count, fp);
fseeko64(fp, cur_pos, SEEK_SET);
@@ -691,22 +696,22 @@ viso_read(void *priv, uint8_t *buffer, uint64_t seek, size_t count)
/* Close any existing FIFO entry's file. */
viso_entry_t *other_entry = viso->file_fifo[viso->file_fifo_pos];
if (other_entry && other_entry->file) {
cdrom_image_viso_log("VISO: Closing [%s]", other_entry->path);
image_viso_log(viso->tf.log, "Closing [%s]...\n", other_entry->path);
fclose(other_entry->file);
other_entry->file = NULL;
cdrom_image_viso_log("\n");
image_viso_log(viso->tf.log, "Done\n");
}
/* Open file. */
cdrom_image_viso_log("VISO: Opening [%s]", entry->path);
image_viso_log(viso->tf.log, "Opening [%s]...\n", entry->path);
if ((entry->file = fopen(entry->path, "rb"))) {
cdrom_image_viso_log("\n");
image_viso_log(viso->tf.log, "Done\n");
/* Add this entry to the FIFO. */
viso->file_fifo[viso->file_fifo_pos++] = entry;
viso->file_fifo_pos &= (sizeof(viso->file_fifo) / sizeof(viso->file_fifo[0])) - 1;
} else {
cdrom_image_viso_log(" => failed\n");
image_viso_log(viso->tf.log, "Failed\n");
/* Clear any existing FIFO entry. */
viso->file_fifo[viso->file_fifo_pos] = NULL;
@@ -753,12 +758,12 @@ viso_close(void *priv)
if (viso == NULL)
return;
cdrom_image_viso_log("VISO: close()\n");
image_viso_log(viso->tf.log, "close()\n");
/* De-allocate everything. */
if (tf->fp)
fclose(tf->fp);
#ifndef ENABLE_CDROM_IMAGE_VISO_LOG
#ifndef ENABLE_IMAGE_VISO_LOG
remove(nvr_path(viso->tf.fn));
#endif
@@ -777,21 +782,32 @@ viso_close(void *priv)
if (viso->entry_map)
free(viso->entry_map);
if (tf->log != NULL) {
}
free(viso);
}
track_file_t *
viso_init(const char *dirname, int *error)
viso_init(const uint8_t id, const char *dirname, int *error)
{
cdrom_image_viso_log("VISO: init()\n");
/* Initialize our data structure. */
viso_t *viso = (viso_t *) calloc(1, sizeof(viso_t));
uint8_t *data = NULL;
uint8_t *p;
*error = 1;
if (viso == NULL)
goto end;
char n[1024] = { 0 };
sprintf(n, "CD-ROM %i VISO ", id + 1);
viso->tf.log = log_open(n);
image_viso_log(viso->tf.log, "init()\n");
viso->sector_size = VISO_SECTOR_SIZE;
viso->format = VISO_FORMAT_ISO | VISO_FORMAT_JOLIET | VISO_FORMAT_RR;
viso->use_version_suffix = (viso->format & VISO_FORMAT_ISO); /* cleared later if required */
@@ -802,7 +818,7 @@ viso_init(const char *dirname, int *error)
goto end;
/* Open temporary file. */
#ifdef ENABLE_CDROM_IMAGE_VISO_LOG
#ifdef ENABLE_IMAGE_VISO_LOG
strcpy(viso->tf.fn, "viso-debug.iso");
#else
plat_tempfile(viso->tf.fn, "viso", ".tmp");
@@ -812,7 +828,7 @@ viso_init(const char *dirname, int *error)
goto end;
/* Set up directory traversal. */
cdrom_image_viso_log("VISO: Traversing directories:\n");
image_viso_log(viso->tf.log, "Traversing directories:\n");
viso_entry_t *entry;
viso_entry_t *last_entry;
viso_entry_t *dir;
@@ -839,7 +855,7 @@ viso_init(const char *dirname, int *error)
if (!S_ISDIR(dir->stats.st_mode)) /* root is not a directory */
goto end;
dir->parent = dir; /* for the root's path table and .. entries */
cdrom_image_viso_log("[%08X] %s => [root]\n", dir, dir->path);
image_viso_log(viso->tf.log, "[%08X] %s => [root]\n", dir, dir->path);
/* Traverse directories, starting with the root. */
viso_entry_t **dir_entries = NULL;
@@ -889,7 +905,8 @@ viso_init(const char *dirname, int *error)
/* Set basename. */
strcpy(entry->name_short, children_count ? ".." : ".");
cdrom_image_viso_log("[%08X] %s => %s\n", entry, dir->path, entry->name_short);
image_viso_log(viso->tf.log, "[%08X] %s => %s\n", entry,
dir->path, entry->name_short);
}
/* Iterate through this directory's children again, making the entries. */
@@ -897,12 +914,16 @@ viso_init(const char *dirname, int *error)
rewinddir(dirp);
while ((readdir_entry = readdir(dirp))) {
/* Ignore . and .. pseudo-directories. */
if ((readdir_entry->d_name[0] == '.') && ((readdir_entry->d_name[1] == '\0') || (*((uint16_t *) &readdir_entry->d_name[1]) == '.')))
if ((readdir_entry->d_name[0] == '.') &&
((readdir_entry->d_name[1] == '\0') ||
(*((uint16_t *) &readdir_entry->d_name[1]) == '.')))
continue;
/* Add and fill entry. */
entry = dir_entries[children_count++] = (viso_entry_t *) calloc(1, sizeof(viso_entry_t) + dir_path_len + strlen(readdir_entry->d_name) + 2);
if (!entry)
entry = dir_entries[children_count++] =
(viso_entry_t *) calloc(1, sizeof(viso_entry_t) +
dir_path_len + strlen(readdir_entry->d_name) + 2);
if (entry == NULL)
break;
entry->parent = dir;
strcpy(entry->path, dir->path);
@@ -972,10 +993,12 @@ have_eltorito_entry:
continue;
}
cdrom_image_viso_log("[%08X] %s => [%-12s] %s\n", entry, dir->path, entry->name_short, entry->basename);
image_viso_log(viso->tf.log, "[%08X] %s => [%-12s] %s\n", entry,
dir->path, entry->name_short, entry->basename);
}
} else {
cdrom_image_viso_log("VISO: Failed to enumerate [%s], will be empty\n", dir->path);
image_viso_log(viso->tf.log, "Failed to enumerate [%s], will be empty\n",
dir->path);
}
/* Add terminator. */
@@ -1129,13 +1152,17 @@ next_dir:
/* Write El Torito boot descriptor. This is an awkward spot for
that, but the spec requires it to be the second descriptor. */
if (!i && eltorito_entry) {
cdrom_image_viso_log("VISO: Writing El Torito boot descriptor for entry [%08X]\n", eltorito_entry);
image_viso_log(viso->tf.log, "Writing El Torito boot descriptor for "
"entry [%08X]\n", eltorito_entry);
p = data;
if (!(viso->format & VISO_FORMAT_ISO))
VISO_LBE_32(p, ftello64(viso->tf.fp) / viso->sector_size); /* sector offset (HSF only) */
*p++ = 0; /* type */
memcpy(p, (viso->format & VISO_FORMAT_ISO) ? "CD001" : "CDROM", 5); /* standard ID */
/* Sector offset (HSF only). */
VISO_LBE_32(p, ftello64(viso->tf.fp) / viso->sector_size);
/* Type. */
*p++ = 0;
/* Standard ID. */
memcpy(p, (viso->format & VISO_FORMAT_ISO) ? "CD001" : "CDROM", 5);
p += 5;
*p++ = 1; /* version */
@@ -1236,7 +1263,7 @@ next_dir:
/* Write each path table. */
for (int i = 0; i <= ((max_vd << 1) | 1); i++) {
cdrom_image_viso_log("VISO: Generating path table #%d:\n", i);
image_viso_log(viso->tf.log, "Generating path table #%d:\n", i);
/* Save this path table's start offset. */
uint64_t pt_start = ftello64(viso->tf.fp);
@@ -1257,7 +1284,9 @@ next_dir:
continue;
}
cdrom_image_viso_log("[%08X] %s => %s\n", dir, dir->path, ((i & 2) || (dir == viso->root_dir)) ? dir->basename : dir->name_short);
image_viso_log(viso->tf.log, "[%08X] %s => %s\n", dir,
dir->path, ((i & 2) || (dir == viso->root_dir)) ? dir->basename :
dir->name_short);
/* Save this directory's path table index and offset. */
dir->pt_idx = pt_idx;
@@ -1325,7 +1354,7 @@ next_dir:
/* Write directory records for each type. */
int dir_type = VISO_DIR_CURRENT_ROOT;
for (int i = 0; i <= max_vd; i++) {
cdrom_image_viso_log("VISO: Generating directory record set #%d:\n", i);
image_viso_log(viso->tf.log, "Generating directory record set #%d:\n", i);
/* Go through directories. */
dir = viso->root_dir;
@@ -1368,8 +1397,10 @@ next_dir:
if ((entry == eltorito_entry) || (entry == eltorito_dir))
goto next_entry;
cdrom_image_viso_log("[%08X] %s => %s\n", entry, dir->path,
((dir_type == VISO_DIR_PARENT) ? ".." : ((dir_type < VISO_DIR_PARENT) ? "." : (i ? entry->basename : entry->name_short))));
image_viso_log(viso->tf.log, "[%08X] %s => %s\n", entry, dir->path,
((dir_type == VISO_DIR_PARENT) ? ".." :
((dir_type < VISO_DIR_PARENT) ? "." :
(i ? entry->basename : entry->name_short))));
/* Fill directory record. */
viso_fill_dir_record(data, entry, viso, dir_type);
@@ -1436,7 +1467,8 @@ next_entry:
/* Allocate entry map for sector->file lookups. */
size_t orig_sector_size = viso->sector_size;
while (1) {
cdrom_image_viso_log("VISO: Allocating entry map for %zu %zu-byte sectors\n", viso->entry_map_size, viso->sector_size);
image_viso_log(viso->tf.log, "Allocating entry map for %zu %zu-byte sectors\n",
viso->entry_map_size, viso->sector_size);
viso->entry_map = (viso_entry_t **) calloc(viso->entry_map_size, sizeof(viso_entry_t *));
if (viso->entry_map) {
/* Successfully allocated. */
@@ -1477,7 +1509,7 @@ next_entry:
viso->all_sectors = viso->metadata_sectors;
/* Go through files, assigning sectors to them. */
cdrom_image_viso_log("VISO: Assigning sectors to files:\n");
image_viso_log(viso->tf.log, "Assigning sectors to files:\n");
size_t base_factor = viso->sector_size / orig_sector_size;
viso_entry_t *prev_entry = viso->root_dir;
viso_entry_t **entry_map_p = viso->entry_map;
@@ -1522,7 +1554,8 @@ next_entry:
size_t size = entry->stats.st_size / viso->sector_size;
if (entry->stats.st_size % viso->sector_size)
size++; /* round up to the next sector */
cdrom_image_viso_log("[%08X] %s => %zu + %zu sectors\n", entry, entry->path, viso->all_sectors, size);
image_viso_log(viso->tf.log, "[%08X] %s => %zu + %zu sectors\n", entry,
entry->path, viso->all_sectors, size);
/* Allocate sectors to this file. */
viso->all_sectors += size;
@@ -1541,9 +1574,10 @@ next_entry:
viso_pwrite(data, viso->vol_size_offsets[i], 8, 1, viso->tf.fp);
/* Metadata processing is finished, read it back to memory. */
cdrom_image_viso_log("VISO: Reading back %zu %zu-byte sectors of metadata\n", viso->metadata_sectors, viso->sector_size);
image_viso_log(viso->tf.log, "Reading back %zu %zu-byte sectors of metadata\n",
viso->metadata_sectors, viso->sector_size);
viso->metadata = (uint8_t *) calloc(viso->metadata_sectors, viso->sector_size);
if (!viso->metadata)
if (viso->metadata == NULL)
goto end;
fseeko64(viso->tf.fp, 0, SEEK_SET);
size_t metadata_size = viso->metadata_sectors * viso->sector_size;
@@ -1554,7 +1588,7 @@ next_entry:
/* We no longer need the temporary file; close and delete it. */
fclose(viso->tf.fp);
viso->tf.fp = NULL;
#ifndef ENABLE_CDROM_IMAGE_VISO_LOG
#ifndef ENABLE_IMAGE_VISO_LOG
remove(nvr_path(viso->tf.fn));
#endif
@@ -1565,13 +1599,15 @@ end:
/* Set the function pointers. */
viso->tf.priv = viso;
if (!*error) {
cdrom_image_viso_log("VISO: Initialized\n");
image_viso_log(viso->tf.log, "Initialized\n");
viso->tf.read = viso_read;
viso->tf.get_length = viso_get_length;
viso->tf.close = viso_close;
return &viso->tf;
} else {
cdrom_image_viso_log("VISO: Initialization failed\n");
image_viso_log(viso->tf.log, "Initialization failed\n");
if (data)
free(data);
viso_close(&viso->tf);