/* we want to delete temporary files as early as possible */
static struct zfile *updateoutputfile (struct zfile *z)
{
struct zfile *z2 = 0;
int size;
FILE *f = fopen (z->name, "rb");
for (;;) {
if (!f)
break;
fseek (f, 0, SEEK_END);
size = ftell (f);
fseek (f, 0, SEEK_SET);
if (!size)
break;
z2 = zfile_fopen_empty (z->name, size);
if (!z2)
break;
fread (z2->data, size, 1, f);
fclose (f);
zfile_fclose (z);
return z2;
}
if (f)
fclose (f);
zfile_fclose (z);
zfile_fclose (z2);
return 0;
}
static struct zfile *dms (struct zfile *z)
{
int ret;
struct zfile *zo;
zo = zfile_fopen_empty ("zipped.dms", 1760 * 512);
if (!zo) return z;
ret = DMS_Process_File (z, zo, CMD_UNPACK, OPT_VERBOSE, 0, 0);
if (ret == NO_PROBLEM || ret == DMS_FILE_END) {
zfile_fclose (z);
return zo;
}
return z;
}
static void addextra(TCHAR *name, struct zfile **extra, uae_u8 *p, int size)
{
int i;
struct zfile *zf = NULL;
if (!extra)
return;
for (i = 0; i < DMS_EXTRA_SIZE; i++) {
if (!extra[i])
break;
}
if (i == DMS_EXTRA_SIZE)
return;
zf = zfile_fopen_empty (NULL, name, size);
if (!zf)
return;
zfile_fwrite (p, size, 1, zf);
zfile_fseek (zf, 0, SEEK_SET);
extra[i] = zf;
}
struct zfile *read_rom_name (const TCHAR *filename)
{
int i;
struct zfile *f;
for (i = 0; i < romlist_cnt; i++) {
if (!_tcsicmp (filename, rl[i].path)) {
struct romdata *rd = rl[i].rd;
f = read_rom (&rd);
if (f)
return f;
}
}
f = rom_fopen (filename, L"rb", ZFD_NORMAL);
if (f) {
uae_u8 tmp[11];
zfile_fread (tmp, sizeof tmp, 1, f);
if (!memcmp (tmp, "AMIROMTYPE1", sizeof tmp)) {
struct zfile *df;
int size;
uae_u8 *buf;
addkeydir (filename);
zfile_fseek (f, 0, SEEK_END);
size = zfile_ftell (f) - sizeof tmp;
zfile_fseek (f, sizeof tmp, SEEK_SET);
buf = xmalloc (uae_u8, size);
zfile_fread (buf, size, 1, f);
df = zfile_fopen_empty (f, L"tmp.rom", size);
decode_cloanto_rom_do (buf, size, size);
zfile_fwrite (buf, size, 1, df);
zfile_fclose (f);
xfree (buf);
zfile_fseek (df, 0, SEEK_SET);
f = df;
} else {
zfile_fseek (f, -((int)sizeof tmp), SEEK_CUR);
}
}
return f;
}
struct zfile *archive_access_lha (struct znode *zn)
{
struct zfile *zf = zn->volume->archive;
struct zfile *out = zfile_fopen_empty (zf, zn->name, zn->size);
struct interfacing lhinterface;
zfile_fseek(zf, zn->offset, SEEK_SET);
lhinterface.method = zn->method;
lhinterface.dicbit = 13; /* method + 8; -lh5- */
lhinterface.infile = zf;
lhinterface.outfile = out;
lhinterface.original = zn->size;
lhinterface.packed = zn->packedsize;
switch (zn->method) {
case LZHUFF0_METHOD_NUM:
case LARC4_METHOD_NUM:
zfile_fread(out->data, zn->size, 1, zf);
break;
case LARC_METHOD_NUM: /* -lzs- */
lhinterface.dicbit = 11;
decode(&lhinterface);
break;
case LZHUFF1_METHOD_NUM: /* -lh1- */
case LZHUFF4_METHOD_NUM: /* -lh4- */
case LARC5_METHOD_NUM: /* -lz5- */
lhinterface.dicbit = 12;
decode(&lhinterface);
break;
case LZHUFF6_METHOD_NUM: /* -lh6- */ /* Added N.Watazaki (^_^) */
case LZHUFF7_METHOD_NUM: /* -lh7- */
lhinterface.dicbit = (zn->method - LZHUFF6_METHOD_NUM) + 15;
default:
decode(&lhinterface);
}
return out;
}
static struct zfile *unzip (struct zfile *z)
{
unzFile uz;
unz_file_info file_info;
char filename_inzip[2048];
struct zfile *zf;
unsigned int err, zipcnt, i, we_have_file = 0;
int select;
char tmphist[MAX_DPATH];
int first = 1;
if (!zlib_test ())
return z;
zf = 0;
uz = unzOpen (z);
if (!uz)
return z;
if (unzGoToFirstFile (uz) != UNZ_OK)
return z;
zipcnt = 1;
tmphist[0] = 0;
for (;;) {
err = unzGetCurrentFileInfo(uz,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
if (err != UNZ_OK)
return z;
if (file_info.uncompressed_size > 0) {
i = 0;
while (ignoreextensions[i]) {
if (strlen(filename_inzip) > strlen (ignoreextensions[i]) &&
!strcasecmp (ignoreextensions[i], filename_inzip + strlen (filename_inzip) - strlen (ignoreextensions[i])))
break;
i++;
}
if (!ignoreextensions[i]) {
if (tmphist[0]) {
DISK_history_add (tmphist, -1);
tmphist[0] = 0;
first = 0;
}
if (first) {
if (isdiskimage (filename_inzip))
sprintf (tmphist,"%s/%s", z->name, filename_inzip);
} else {
sprintf (tmphist,"%s/%s", z->name, filename_inzip);
DISK_history_add (tmphist, -1);
tmphist[0] = 0;
}
select = 0;
if (!z->zipname)
select = 1;
if (z->zipname && !strcasecmp (z->zipname, filename_inzip))
select = -1;
if (z->zipname && z->zipname[0] == '#' && atol (z->zipname + 1) == (int)zipcnt)
select = -1;
if (select && !we_have_file) {
unsigned int err = unzOpenCurrentFile (uz);
if (err == UNZ_OK) {
zf = zfile_fopen_empty (filename_inzip, file_info.uncompressed_size);
if (zf) {
err = unzReadCurrentFile (uz, zf->data, file_info.uncompressed_size);
unzCloseCurrentFile (uz);
if (err == 0 || err == file_info.uncompressed_size) {
zf = zuncompress (zf);
if (select < 0 || zfile_gettype (zf)) {
we_have_file = 1;
}
}
}
if (!we_have_file) {
zfile_fclose (zf);
zf = 0;
}
}
}
}
}
zipcnt++;
err = unzGoToNextFile (uz);
if (err != UNZ_OK)
break;
}
if (zf) {
zfile_fclose (z);
z = zf;
}
return z;
}
static struct zfile *gunzip (struct zfile *z)
{
uae_u8 header[2 + 1 + 1 + 4 + 1 + 1];
z_stream zs;
int i, size, ret, first;
uae_u8 flags;
long offset;
char name[MAX_DPATH];
uae_u8 buffer[8192];
struct zfile *z2;
uae_u8 b;
if (!zlib_test ())
return z;
strcpy (name, z->name);
memset (&zs, 0, sizeof (zs));
memset (header, 0, sizeof (header));
zfile_fread (header, sizeof (header), 1, z);
flags = header[3];
if (header[0] != 0x1f && header[1] != 0x8b)
return z;
if (flags & 2) /* multipart not supported */
return z;
if (flags & 32) /* encryption not supported */
return z;
if (flags & 4) { /* skip extra field */
zfile_fread (&b, 1, 1, z);
size = b;
zfile_fread (&b, 1, 1, z);
size |= b << 8;
zfile_fseek (z, size + 2, SEEK_CUR);
}
if (flags & 8) { /* get original file name */
i = 0;
do {
zfile_fread (name + i, 1, 1, z);
} while (name[i++]);
}
if (flags & 16) { /* skip comment */
i = 0;
do {
zfile_fread (&b, 1, 1, z);
} while (b);
}
offset = zfile_ftell (z);
zfile_fseek (z, -4, SEEK_END);
zfile_fread (&b, 1, 1, z);
size = b;
zfile_fread (&b, 1, 1, z);
size |= b << 8;
zfile_fread (&b, 1, 1, z);
size |= b << 16;
zfile_fread (&b, 1, 1, z);
size |= b << 24;
if (size < 8 || size > 10000000) /* safety check */
return z;
zfile_fseek (z, offset, SEEK_SET);
z2 = zfile_fopen_empty (name, size);
if (!z2)
return z;
zs.next_out = z2->data;
zs.avail_out = size;
first = 1;
do {
zs.next_in = buffer;
zs.avail_in = sizeof (buffer);
zfile_fread (buffer, sizeof (buffer), 1, z);
if (first) {
if (inflateInit2 (&zs, -MAX_WBITS) != Z_OK)
break;
first = 0;
}
ret = inflate (&zs, 0);
} while (ret == Z_OK);
inflateEnd (&zs);
if (ret != Z_STREAM_END || first != 0) {
zfile_fclose (z2);
return z;
}
zfile_fclose (z);
return z2;
}
struct zfile *read_rom (struct romdata **prd)
{
struct romdata *rd2 = *prd;
struct romdata *rd = *prd;
TCHAR *name;
int id = rd->id;
uae_u32 crc32;
int size;
uae_u8 *buf, *buf2;
/* find parent node */
for (;;) {
if (rd2 == &roms[0])
break;
if (rd2[-1].id != id)
break;
rd2--;
}
*prd = rd2;
size = rd2->size;
crc32 = rd2->crc32;
name = rd->name;
buf = xmalloc (uae_u8, size * 2);
memset (buf, 0xff, size * 2);
if (!buf)
return NULL;
buf2 = buf + size;
while (rd->id == id) {
int i, j, add;
int ok = 0;
uae_u32 flags = rd->type;
int odd = (flags & ROMTYPE_ODD) ? 1 : 0;
add = 0;
for (i = 0; i < 2; i++) {
memset (buf, 0, size);
if (!(flags & (ROMTYPE_EVEN | ROMTYPE_ODD))) {
read_rom_file (buf, rd);
if (flags & ROMTYPE_CD32) {
memcpy (buf2, buf, size);
mergecd32 (buf, buf2, size);
}
add = 1;
i++;
} else {
int romsize = size / 2;
if (i)
odd = !odd;
if (flags & ROMTYPE_8BIT) {
read_rom_file (buf2, rd);
if (flags & ROMTYPE_BYTESWAP)
byteswap (buf2, romsize);
if (flags & ROMTYPE_SCRAMBLED)
descramble (rd, buf2, romsize, odd);
for (j = 0; j < size; j += 2)
buf[j + odd] = buf2[j / 2];
read_rom_file (buf2, rd + 1);
if (flags & ROMTYPE_BYTESWAP)
byteswap (buf2, romsize);
if (flags & ROMTYPE_SCRAMBLED)
descramble (rd + 1, buf2, romsize, !odd);
for (j = 0; j < size; j += 2)
buf[j + (1 - odd)] = buf2[j / 2];
} else {
read_rom_file (buf2, rd);
if (flags & ROMTYPE_BYTESWAP)
byteswap (buf2, romsize);
if (flags & ROMTYPE_SCRAMBLED)
descramble (rd, buf2, romsize, odd);
for (j = 0; j < size; j += 4) {
buf[j + 2 * odd + 0] = buf2[j / 2 + 0];
buf[j + 2 * odd + 1] = buf2[j / 2 + 1];
}
read_rom_file (buf2, rd + 1);
if (flags & ROMTYPE_BYTESWAP)
byteswap (buf2, romsize);
if (flags & ROMTYPE_SCRAMBLED)
descramble (rd + 1, buf2, romsize, !odd);
for (j = 0; j < size; j += 4) {
buf[j + 2 * (1 - odd) + 0] = buf2[j / 2 + 0];
buf[j + 2 * (1 - odd) + 1] = buf2[j / 2 + 1];
}
}
add = 2;
}
if (get_crc32 (buf, size) == crc32) {
ok = 1;
}
if (!ok && (rd->type & ROMTYPE_AR)) {
uae_u8 tmp[2];
tmp[0] = buf[0];
tmp[1] = buf[1];
buf[0] = buf[1] = 0;
if (get_crc32 (buf, size) == crc32)
ok = 1;
buf[0] = tmp[0];
buf[1] = tmp[1];
}
if (!ok) {
/* perhaps it is byteswapped without byteswap entry? */
byteswap (buf, size);
if (get_crc32 (buf, size) == crc32)
ok = 1;
}
if (ok) {
struct zfile *zf = zfile_fopen_empty (NULL, name, size);
if (zf) {
zfile_fwrite (buf, size, 1, zf);
zfile_fseek (zf, 0, SEEK_SET);
}
xfree (buf);
return zf;
}
}
rd += add;
}
xfree (buf);
return NULL;
}
