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-rw-r--r--lib/cdutils.cpp157
1 files changed, 107 insertions, 50 deletions
diff --git a/lib/cdutils.cpp b/lib/cdutils.cpp
index ea4ff4c..f39114c 100644
--- a/lib/cdutils.cpp
+++ b/lib/cdutils.cpp
@@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-/* $Id: cdutils.cpp,v 1.33 2004-11-27 21:47:56 pixel Exp $ */
+/* $Id: cdutils.cpp,v 1.34 2005-11-02 21:34:02 pixel Exp $ */
#include <stdio.h>
#include <string.h>
@@ -26,6 +26,14 @@
#include "cdutils.h"
#include "Output.h"
+#ifdef WORDS_BIGENDIAN
+#define IS_LITTLE_ENDIAN 0
+#define IS_BIG_ENDIAN 1
+#else
+#define IS_LITTLE_ENDIAN 1
+#define IS_BIG_ENDIAN 0
+#endif
+
const long sec_sizes[7] = {0, 2048, 2336, 2048, 2324, 2352, 2352};
const long sec_offsts[7] = {0, 16, 16, 24, 24, 0, 0};
const String sec_modes[7] = {"MODE 0 (empty)", "MODE 1", "MODE 2", "MODE 2 FORM 1", "MODE 2 FORM 2", "Raw", "Autodetect"};
@@ -38,24 +46,24 @@ cdutils::~cdutils() {
free(rootDir);
}
-unsigned char cdutils::from_BCD(unsigned char x) {
+Uint8 cdutils::from_BCD(Uint8 x) {
return ((x & 0xf) + ((x & 0xf0) >> 4) * 10);
}
-unsigned char cdutils::to_BCD(unsigned char x) {
+Uint8 cdutils::to_BCD(Uint8 x) {
return ((x / 10) << 4) | (x % 10);
}
-bool cdutils::is_valid_BCD(unsigned char x) {
+bool cdutils::is_valid_BCD(Uint8 x) {
return (((x & 15) < 10) && ((x >> 4) < 10));
}
-unsigned long cdutils::from_MSF(unsigned char m, unsigned char s, unsigned char f, unsigned long start) {
+Uint32 cdutils::from_MSF(Uint8 m, Uint8 s, Uint8 f, Uint32 start) {
return (from_BCD(m) * 60 + from_BCD(s)) * 75 + from_BCD(f) - start;
}
-unsigned long cdutils::from_MSF(unsigned long msf, unsigned long start) {
- unsigned char
+Uint32 cdutils::from_MSF(Uint32 msf, Uint32 start) {
+ Uint8
f = msf & 0xff,
s = (msf >> 8) & 0xff,
m = (msf >> 16) & 0xff;
@@ -63,7 +71,7 @@ unsigned long cdutils::from_MSF(unsigned long msf, unsigned long start) {
return from_MSF(m, s, f, start);
}
-void cdutils::to_MSF(int sect, unsigned char & m, unsigned char & s, unsigned char & f, unsigned long start) {
+void cdutils::to_MSF(int sect, Uint8 & m, Uint8 & s, Uint8 & f, Uint32 start) {
sect += start;
f = to_BCD(sect % 75);
sect /= 75;
@@ -71,8 +79,8 @@ void cdutils::to_MSF(int sect, unsigned char & m, unsigned char & s, unsigned ch
m = to_BCD(sect / 60);
}
-unsigned long cdutils::to_MSF(int sect, unsigned long start) {
- unsigned char m, s, f;
+Uint32 cdutils::to_MSF(int sect, Uint32 start) {
+ Uint8 m, s, f;
to_MSF(sect, m, s, f, start);
return f | (s << 8) | (m << 16);
}
@@ -165,6 +173,38 @@ Uint32 cdutils::swap_dword(Uint32 i) {
return (i >> 24) | ((i >> 8) & 0x0000ff00) | ((i << 8) & 0x00ff0000) | (i << 24);
}
+Uint16 cdutils::from_LE16(Uint16 i) {
+#ifdef WORDS_BIGENDIAN
+ return swap_word(i);
+#else
+ return i;
+#endif
+}
+
+Uint32 cdutils::from_LE32(Uint32 i) {
+#ifdef WORDS_BIGENDIAN
+ return swap_dword(i);
+#else
+ return i;
+#endif
+}
+
+Uint16 cdutils::from_BE16(Uint16 i) {
+#ifdef WORDS_BIGENDIAN
+ return i;
+#else
+ return swap_word(i);
+#endif
+}
+
+Uint32 cdutils::from_BE32(Uint32 i) {
+#ifdef WORDS_BIGENDIAN
+ return i;
+#else
+ return swap_dword(i);
+#endif
+}
+
int cdutils::guess_type(int number) {
Byte header[24];
@@ -177,7 +217,7 @@ int cdutils::guess_type(int number) {
if (header[15] == 1) {
return MODE_1;
} else if (header[15] == 2) {
- if (*((unsigned long *) &(header[16])) == *((unsigned long *) &(header[20]))) {
+ if (*((Uint32 *) &(header[16])) == *((Uint32 *) &(header[20]))) {
if ((header[16] == 0) && (header[17] == 0) && (header[19] == 0)) {
if (header[18] & 0x20) {
return MODE_2_FORM_2;
@@ -224,7 +264,7 @@ long cdutils::read_sector(Byte * buffer, int type, int number) {
return sec_sizes[type];
}
-void cdutils::read_datas(Byte * buffer, long size, int type, int number) {
+void cdutils::read_data(Byte * buffer, long size, int type, int number) {
Byte sector[2352];
int i, n, reste;
@@ -312,9 +352,9 @@ void cdutils::write_sector(Byte * buffer, int type, int number) throw (GeneralEx
}
}
-void cdutils::write_datas(Byte * buffer, long size, int type, int number) {
+void cdutils::write_data(Byte * buffer, long size, int type, int number) {
long nbsectors, i;
- unsigned char sector[2352];
+ Uint8 sector[2352];
if (type == GUESS) {
type = guess_type(number);
@@ -339,7 +379,7 @@ void cdutils::write_datas(Byte * buffer, long size, int type, int number) {
void cdutils::write_file(Handle * file, long size, int type, int number) {
long nbsectors, i;
- unsigned char buffer[2352];
+ Uint8 buffer[2352];
if (type == GUESS) {
type = guess_type(number);
@@ -394,10 +434,15 @@ void cdutils::show_head_entry(void) {
int cdutils::show_entry(struct DirEntry * dir) {
char pbuf[200], pad;
int s;
+ Uint32 Sector, Size;
+
if ((!dir) || (!dir->R)) {
return 1;
}
+ Sector = from_LE32(dir->Sector);
+ Size = from_LE32(dir->Size);
+
strncpy(pbuf, dir->id, dir->N);
pbuf[dir->N] = 0;
if ((dir->N == 1) && (pbuf[0] == 0)) {
@@ -433,7 +478,7 @@ int cdutils::show_entry(struct DirEntry * dir) {
dir->Year += 100;
printm(M_BARE, "%6i %9i %2i/%02i/%04i %2i:%02i:%02i%+03.1f %c%c%c%c%c%c%c%c %s\n",
- dir->Sector, dir->Size, dir->Day, dir->Month, dir->Year + 1900, dir->Hour, dir->Minute, dir->Second, ((float) dir->Offset) / 4,
+ Sector, Size, dir->Day, dir->Month, dir->Year + 1900, dir->Hour, dir->Minute, dir->Second, ((float) dir->Offset) / 4,
dir->Flags & 1 ? 'H' : '-', dir->Flags & 2 ? 'D' : '-', dir->Flags & 4 ? 'A' : '-', dir->Flags & 8 ? 'R' : '-',
dir->Flags & 16 ? 'P' : '-', dir->Flags & 32 ? '1' : '-', dir->Flags & 64 ? '1' : '-', dir->Flags & 128 ? 'C' : '-', pbuf);
return dir->R;
@@ -442,16 +487,20 @@ int cdutils::show_entry(struct DirEntry * dir) {
int cdutils::show_dir(struct DirEntry * dir) {
unsigned int ptr;
Byte * buffer;
+ Uint32 Size, Sector;
if (!(dir->Flags & 2)) {
return 0;
}
- buffer = (Byte *) malloc(dir->Size);
- read_datas(buffer, dir->Size, GUESS, dir->Sector);
+ Size = from_LE32(dir->Size);
+ Sector = from_LE32(dir->Sector);
+
+ buffer = (Byte *) malloc(Size);
+ read_data(buffer, Size, GUESS, Sector);
ptr = 0;
- while(ptr < dir->Size) {
+ while(ptr < Size) {
ptr += show_entry((struct DirEntry *) &(buffer[ptr]));
}
@@ -461,15 +510,19 @@ int cdutils::show_dir(struct DirEntry * dir) {
struct cdutils::DirEntry cdutils::find_dir_entry(struct DirEntry * dir, String name) {
unsigned int ptr, size;
- unsigned char * buffer;
+ Uint8 * buffer;
struct DirEntry r = {0, 0, 0, 0, 0};
+ Uint32 Sector;
if (!(dir->Flags & 2)) {
return r;
}
- buffer = (unsigned char *) malloc(size = dir->Size);
- read_datas(buffer, dir->Size, GUESS, dir->Sector);
+ Sector = from_LE32(dir->Sector);
+ size = from_LE32(dir->Size);
+
+ buffer = (Uint8 *) malloc(size);
+ read_data(buffer, size, GUESS, Sector);
ptr = 0;
while(ptr < size) {
@@ -493,13 +546,17 @@ struct cdutils::DirEntry * cdutils::find_dir_entry(Byte ** bufout, struct cdutil
Byte * buffer;
struct DirEntry * rdir = 0;
*bufout = 0;
+ Uint32 Sector;
if (!(dir->Flags & 2)) {
return 0;
}
- buffer = (Byte *) malloc(size = dir->Size);
- read_datas(buffer, dir->Size, GUESS, dir->Sector);
+ size = from_LE32(dir->Size);
+ Sector = from_LE32(dir->Sector);
+
+ buffer = (Byte *) malloc(size);
+ read_data(buffer, size, GUESS, Sector);
ptr = 0;
while(ptr < size) {
@@ -527,7 +584,7 @@ struct cdutils::DirEntry * cdutils::find_dir_entry(Byte ** bufout, struct cdutil
int cdutils::show_iso_infos() {
char buffer[2048];
char pbuff[130];
- short int s, nogood = 0;
+ int16 s, nogood = 0;
read_sector((Byte *) buffer, GUESS, 16);
@@ -537,7 +594,7 @@ int cdutils::show_iso_infos() {
memcpy(pbuff, buffer + 1, 5);
pbuff[5] = 0;
printm(M_BARE, " 1 - 5-`CD001' : %s\n", pbuff);
- printm(M_BARE, " 6 - 2- 1 : %i\n", s = *((short int *) &(buffer[6])));
+ printm(M_BARE, " 6 - 2- 1 : %i\n", s = from_LE16(*((Uint16 *) &(buffer[6]))));
printm(M_BARE, "(*this was the signature*)\n");
if (buffer[0] != 1) nogood = 1;
if (strcmp(pbuff, "CD001")) nogood = 1;
@@ -554,15 +611,15 @@ int cdutils::show_iso_infos() {
memcpy(pbuff, buffer + 40, 32);
pbuff[32] = 0;
printm(M_BARE, " 40 - 32- VOLID : %s\n", pbuff);
- printm(M_BARE, " 80 - 8- SNum : %li\n", *((long int *) &(buffer[80])));
- printm(M_BARE, " 120 - 4- VOLSiz : %i\n", *((short int *) &(buffer[120])));
- printm(M_BARE, " 124 - 4- VOLNum : %i\n", *((short int *) &(buffer[124])));
- printm(M_BARE, " 128 - 4- SSize : %i\n", *((short int *) &(buffer[128])));
- printm(M_BARE, " 132 - 8- PSize : %li\n", *((long int *) &(buffer[132])));
- printm(M_BARE, " 140 - 4- 1SLPath: %i\n", *((long int *) &(buffer[140])));
- printm(M_BARE, " 144 - 4- 2SLPath: %i\n", *((long int *) &(buffer[144])));
- printm(M_BARE, " 148 - 4- 1SBPath: %i\n", swap_word(*((long int *) &(buffer[150]))));
- printm(M_BARE, " 152 - 4- 2SBPath: %i\n", swap_word(*((long int *) &(buffer[154]))));
+ printm(M_BARE, " 80 - 8- SNum : %li\n", from_LE32(*((Uint32 *) &(buffer[80]))));
+ printm(M_BARE, " 120 - 4- VOLSiz : %i\n", from_LE16(*((Uint16 *) &(buffer[120]))));
+ printm(M_BARE, " 124 - 4- VOLNum : %i\n", from_LE16(*((Uint16 *) &(buffer[124]))));
+ printm(M_BARE, " 128 - 4- SSize : %i\n", from_LE16(*((Uint16 *) &(buffer[128]))));
+ printm(M_BARE, " 132 - 8- PSize : %li\n", from_LE32(*((Uint32 *) &(buffer[132]))));
+ printm(M_BARE, " 140 - 4- 1SLPath: %li\n", from_LE32(*((Uint32 *) &(buffer[140]))));
+ printm(M_BARE, " 144 - 4- 2SLPath: %li\n", from_LE32(*((Uint32 *) &(buffer[144]))));
+ printm(M_BARE, " 148 - 4- 1SBPath: %li\n", from_BE32(*((Uint32 *) &(buffer[148]))));
+ printm(M_BARE, " 152 - 4- 2SBPath: %li\n", from_BE32(*((Uint32 *) &(buffer[152]))));
memcpy(pbuff, buffer + 190, 128);
pbuff[128] = 0;
printm(M_BARE, " 190 - 128- VStId : %s\n", pbuff);
@@ -599,7 +656,7 @@ int cdutils::show_iso_infos() {
int cdutils::get_iso_infos() {
Byte buffer[2048];
char pbuff[130];
- short int s, nogood = 0;
+ int16 s, nogood = 0;
int rootsec;
read_sector(buffer, GUESS, 16);
@@ -607,7 +664,7 @@ int cdutils::get_iso_infos() {
memcpy(pbuff, buffer + 1, 5);
pbuff[5] = 0;
- s = *((short int *) &(buffer[6]));
+ s = from_LE16(*((Uint16 *) &(buffer[6])));
if (buffer[0] != 1) nogood = 1;
if (strcmp(pbuff, "CD001")) nogood = 1;
if (s != 1) nogood = 1;
@@ -617,11 +674,11 @@ int cdutils::get_iso_infos() {
return 0;
}
- pt1 = *((short int *) &(buffer[140]));
- pt2 = *((short int *) &(buffer[144]));
- snum = *((int *) &(buffer[80]));
- ptl = *((long int *) &(buffer[132]));
- rootsec = ((struct DirEntry *) (&buffer[156]))->Sector;
+ pt1 = from_LE16(*((Uint16 *) &(buffer[140])));
+ pt2 = from_LE16(*((Uint16 *) &(buffer[144])));
+ snum = from_LE32(*((Uint32 *) &(buffer[80])));
+ ptl = from_LE32(*((Uint32 *) &(buffer[132])));
+ rootsec = from_LE32(((struct DirEntry *) (&buffer[156]))->Sector);
read_sector(buffer, GUESS, rootsec);
rootDir = (struct DirEntry *) malloc(buffer[0]);
memcpy(rootDir, buffer, buffer[0]);
@@ -641,7 +698,7 @@ int cdutils::get_pt_infos() {
}
buffer = (Byte *) malloc(ptl);
- read_datas(buffer, ptl, GUESS, !pt1 ? pt2 : pt1);
+ read_data(buffer, ptl, GUESS, !pt1 ? pt2 : pt1);
if (buffer[0] == 1)
if (buffer[1] == 0)
@@ -649,7 +706,7 @@ int cdutils::get_pt_infos() {
if (buffer[7] == 0)
if (buffer[8] == 0)
if (buffer[9] == 0)
- root = *((unsigned long int *) &(buffer[2]));
+ root = from_LE32(*((Uint32 *) &(buffer[2])));
free(buffer);
return root ? 1 : 0;
@@ -670,13 +727,13 @@ int cdutils::show_pt_infos() {
}
buffer = (Byte *) malloc(ptl + 2);
- read_datas(buffer, ptl, GUESS, !pt1 ? pt2 : pt1);
+ read_data(buffer, ptl, GUESS, !pt1 ? pt2 : pt1);
printm(M_BARE, "node^paren@sector : name\n");
for (ptr = 0, i = 1; buffer[ptr]; ptr += ptr & 1, i++) {
strncpy(pbuf, (char *) &(buffer[8 + ptr]), buffer[ptr]);
pbuf[buffer[ptr]] = 0;
- printm(M_BARE, "%3i ^ %3i @ %6i: %s\n", i, *((unsigned short *) &(buffer[6 + ptr])), *((unsigned long *) &(buffer[2 + ptr])), pbuf);
+ printm(M_BARE, "%3i ^ %3i @ %6i: %s\n", i, from_LE16(*((Uint16 *) &(buffer[6 + ptr]))), from_LE32(*((Uint32 *) &(buffer[2 + ptr]))), pbuf);
ptr += 8 + buffer[ptr];
}
@@ -862,7 +919,7 @@ cdfile::cdfile(cdutils * _cd, const cdutils::DirEntry * d, int _mode) : Handle(-
}
cdfile::cdfile(cdutils * _cd, int _sector, ssize_t _size, int _mode) : Handle(-1), cd(_cd), sector(_sector), mode(_mode), size(_size), name("raw reading") {
- Byte datas[2352];
+ Byte data[2352];
bool eof;
if (mode == GUESS) {
@@ -872,8 +929,8 @@ cdfile::cdfile(cdutils * _cd, int _sector, ssize_t _size, int _mode) : Handle(-1
size = 0;
if ((mode == MODE2_FORM1) || (mode == MODE2_FORM2)) {
do {
- cd->read_sector(datas, MODE_RAW, sector + size++);
- eof = datas[18] & 0x80;
+ cd->read_sector(data, MODE_RAW, sector + size++);
+ eof = data[18] & 0x80;
} while (!eof);
size *= sec_sizes[mode];
}
@@ -908,7 +965,7 @@ ssize_t cdfile::read(void *buf, size_t count) throw (GeneralException) {
buf = (Byte *) buf + nstartbytes;
if (count) {
- cd->read_datas((Byte *) buf, count, mode, startsec + 1);
+ cd->read_data((Byte *) buf, count, mode, startsec + 1);
}
itell += count + nstartbytes;
generated by cgit v1.2.3 (git 2.39.1) at 2025-11-04 01:33:01 +0000