1 |
|
/* |
2 |
< |
* 1541t64.cpp - 1541 emulation in .t64/LYNX file |
2 |
> |
* 1541t64.cpp - 1541 emulation in archive-type files (.t64/LYNX/.p00) |
3 |
|
* |
4 |
< |
* Frodo (C) 1994-1997,2002-2003 Christian Bauer |
4 |
> |
* Frodo (C) Copyright 1994-2001 Christian Bauer |
5 |
|
* |
6 |
|
* This program is free software; you can redistribute it and/or modify |
7 |
|
* it under the terms of the GNU General Public License as published by |
19 |
|
*/ |
20 |
|
|
21 |
|
/* |
22 |
< |
* Notes: |
23 |
< |
* ------ |
22 |
> |
* NOTES: |
23 |
> |
* - This module handles access to files inside (uncompressed) archives |
24 |
> |
* and makes the archive look like a disk. It supports C64S tape images |
25 |
> |
* (.t64), C64 LYNX archives and .p00 files. |
26 |
> |
* - If any file is opened, the contents of the file in the archive file are |
27 |
> |
* copied into a temporary file which is used for reading. This is done |
28 |
> |
* to insert the load address. |
29 |
|
* |
30 |
< |
* - If any file is opened, the contents of the file in the |
31 |
< |
* .t64 file are copied into a temporary file which is used |
32 |
< |
* for reading. This is done to insert the load address. |
33 |
< |
* - C64 LYNX archives are also handled by these routines |
34 |
< |
* |
35 |
< |
* Incompatibilities: |
31 |
< |
* ------------------ |
32 |
< |
* |
33 |
< |
* - Only read accesses possible |
34 |
< |
* - No "raw" directory reading |
35 |
< |
* - No relative/sequential/user files |
36 |
< |
* - Only "I" and "UJ" commands implemented |
30 |
> |
* Incompatibilities: |
31 |
> |
* - Only read accesses possible |
32 |
> |
* - No "raw" directory reading |
33 |
> |
* - No relative/sequential/user files |
34 |
> |
* - Unimplemented commands: B-P, M-R, M-W, C, S, P, N |
35 |
> |
* - Impossible to implement: B-R, B-W, B-E, B-A, B-F, M-E |
36 |
|
*/ |
37 |
|
|
38 |
|
#include "sysdeps.h" |
41 |
|
#include "IEC.h" |
42 |
|
#include "Prefs.h" |
43 |
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|
44 |
+ |
#define DEBUG 0 |
45 |
+ |
#include "debug.h" |
46 |
|
|
46 |
– |
// Access modes |
47 |
– |
enum { |
48 |
– |
FMODE_READ, FMODE_WRITE, FMODE_APPEND |
49 |
– |
}; |
50 |
– |
|
51 |
– |
// File types |
52 |
– |
enum { |
53 |
– |
FTYPE_PRG, FTYPE_SEQ, FTYPE_USR, FTYPE_REL |
54 |
– |
}; |
47 |
|
|
48 |
|
// Prototypes |
49 |
< |
static bool match(char *p, char *n); |
49 |
> |
static bool is_t64_header(const uint8 *header); |
50 |
> |
static bool is_lynx_header(const uint8 *header); |
51 |
> |
static bool is_p00_header(const uint8 *header); |
52 |
> |
static bool parse_t64_file(FILE *f, vector<c64_dir_entry> &vec, char *dir_title); |
53 |
> |
static bool parse_lynx_file(FILE *f, vector<c64_dir_entry> &vec, char *dir_title); |
54 |
> |
static bool parse_p00_file(FILE *f, vector<c64_dir_entry> &vec, char *dir_title); |
55 |
|
|
56 |
|
|
57 |
|
/* |
58 |
|
* Constructor: Prepare emulation |
59 |
|
*/ |
60 |
|
|
61 |
< |
T64Drive::T64Drive(IEC *iec, char *filepath) : Drive(iec) |
61 |
> |
ArchDrive::ArchDrive(IEC *iec, const char *filepath) : Drive(iec), the_file(NULL) |
62 |
|
{ |
66 |
– |
the_file = NULL; |
67 |
– |
file_info = NULL; |
68 |
– |
|
69 |
– |
Ready = false; |
70 |
– |
strcpy(orig_t64_name, filepath); |
63 |
|
for (int i=0; i<16; i++) |
64 |
|
file[i] = NULL; |
65 |
+ |
Reset(); |
66 |
|
|
67 |
< |
// Open .t64 file |
68 |
< |
open_close_t64_file(filepath); |
76 |
< |
if (the_file != NULL) { |
77 |
< |
Reset(); |
67 |
> |
// Open archive file |
68 |
> |
if (change_arch(filepath)) |
69 |
|
Ready = true; |
79 |
– |
} |
70 |
|
} |
71 |
|
|
72 |
|
|
74 |
|
* Destructor |
75 |
|
*/ |
76 |
|
|
77 |
< |
T64Drive::~T64Drive() |
88 |
< |
{ |
89 |
< |
// Close .t64 file |
90 |
< |
open_close_t64_file(""); |
91 |
< |
|
92 |
< |
Ready = false; |
93 |
< |
} |
94 |
< |
|
95 |
< |
|
96 |
< |
/* |
97 |
< |
* Open/close the .t64/LYNX file |
98 |
< |
*/ |
99 |
< |
|
100 |
< |
void T64Drive::open_close_t64_file(char *t64name) |
77 |
> |
ArchDrive::~ArchDrive() |
78 |
|
{ |
79 |
< |
uint8 buf[64]; |
80 |
< |
bool parsed_ok = false; |
104 |
< |
|
105 |
< |
// Close old .t64, if open |
106 |
< |
if (the_file != NULL) { |
79 |
> |
// Close archive file |
80 |
> |
if (the_file) { |
81 |
|
close_all_channels(); |
82 |
|
fclose(the_file); |
109 |
– |
the_file = NULL; |
110 |
– |
delete[] file_info; |
111 |
– |
file_info = NULL; |
112 |
– |
} |
113 |
– |
|
114 |
– |
// Open new .t64 file |
115 |
– |
if (t64name[0]) { |
116 |
– |
if ((the_file = fopen(t64name, "rb")) != NULL) { |
117 |
– |
|
118 |
– |
// Check file ID |
119 |
– |
fread(&buf, 64, 1, the_file); |
120 |
– |
if (buf[0] == 0x43 && buf[1] == 0x36 && buf[2] == 0x34) { |
121 |
– |
is_lynx = false; |
122 |
– |
parsed_ok = parse_t64_file(); |
123 |
– |
} else if (buf[0x3c] == 0x4c && buf[0x3d] == 0x59 && buf[0x3e] == 0x4e && buf[0x3f] == 0x58) { |
124 |
– |
is_lynx = true; |
125 |
– |
parsed_ok = parse_lynx_file(); |
126 |
– |
} |
127 |
– |
|
128 |
– |
if (!parsed_ok) { |
129 |
– |
fclose(the_file); |
130 |
– |
the_file = NULL; |
131 |
– |
delete[] file_info; |
132 |
– |
file_info = NULL; |
133 |
– |
return; |
134 |
– |
} |
135 |
– |
} |
83 |
|
} |
84 |
+ |
Ready = false; |
85 |
|
} |
86 |
|
|
87 |
|
|
88 |
|
/* |
89 |
< |
* Parse .t64 file and construct FileInfo array |
89 |
> |
* Open the archive file |
90 |
|
*/ |
91 |
|
|
92 |
< |
bool T64Drive::parse_t64_file(void) |
92 |
> |
bool ArchDrive::change_arch(const char *path) |
93 |
|
{ |
94 |
< |
uint8 buf[32]; |
147 |
< |
uint8 *buf2; |
148 |
< |
char *p; |
149 |
< |
int max, i, j; |
94 |
> |
FILE *new_file; |
95 |
|
|
96 |
< |
// Read header and get maximum number of files contained |
97 |
< |
fseek(the_file, 32, SEEK_SET); |
98 |
< |
fread(&buf, 32, 1, the_file); |
99 |
< |
max = (buf[3] << 8) | buf[2]; |
100 |
< |
|
101 |
< |
memcpy(dir_title, buf+8, 16); |
102 |
< |
|
103 |
< |
// Allocate buffer for file records and read them |
104 |
< |
buf2 = new uint8[max*32]; |
105 |
< |
fread(buf2, 32, max, the_file); |
106 |
< |
|
107 |
< |
// Determine number of files contained |
108 |
< |
for (i=0, num_files=0; i<max; i++) |
109 |
< |
if (buf2[i*32] == 1) |
110 |
< |
num_files++; |
111 |
< |
|
112 |
< |
if (!num_files) |
113 |
< |
return false; |
169 |
< |
|
170 |
< |
// Construct file information array |
171 |
< |
file_info = new FileInfo[num_files]; |
172 |
< |
for (i=0, j=0; i<max; i++) |
173 |
< |
if (buf2[i*32] == 1) { |
174 |
< |
memcpy(file_info[j].name, buf2+i*32+16, 16); |
175 |
< |
|
176 |
< |
// Strip trailing spaces |
177 |
< |
file_info[j].name[16] = 0x20; |
178 |
< |
p = file_info[j].name + 16; |
179 |
< |
while (*p-- == 0x20) ; |
180 |
< |
p[2] = 0; |
181 |
< |
|
182 |
< |
file_info[j].type = FTYPE_PRG; |
183 |
< |
file_info[j].sa_lo = buf2[i*32+2]; |
184 |
< |
file_info[j].sa_hi = buf2[i*32+3]; |
185 |
< |
file_info[j].offset = (buf2[i*32+11] << 24) | (buf2[i*32+10] << 16) | (buf2[i*32+9] << 8) | buf2[i*32+8]; |
186 |
< |
file_info[j].length = ((buf2[i*32+5] << 8) | buf2[i*32+4]) - ((buf2[i*32+3] << 8) | buf2[i*32+2]); |
187 |
< |
j++; |
96 |
> |
// Open new archive file |
97 |
> |
if ((new_file = fopen(path, "rb")) != NULL) { |
98 |
> |
|
99 |
> |
file_info.clear(); |
100 |
> |
|
101 |
> |
// Read header, determine archive type and parse archive contents |
102 |
> |
uint8 header[64]; |
103 |
> |
fread(header, 1, 64, new_file); |
104 |
> |
bool parsed_ok = false; |
105 |
> |
if (is_t64_header(header)) { |
106 |
> |
archive_type = TYPE_T64; |
107 |
> |
parsed_ok = parse_t64_file(new_file, file_info, dir_title); |
108 |
> |
} else if (is_lynx_header(header)) { |
109 |
> |
archive_type = TYPE_LYNX; |
110 |
> |
parsed_ok = parse_lynx_file(new_file, file_info, dir_title); |
111 |
> |
} else if (is_p00_header(header)) { |
112 |
> |
archive_type = TYPE_P00; |
113 |
> |
parsed_ok = parse_p00_file(new_file, file_info, dir_title); |
114 |
|
} |
115 |
|
|
116 |
< |
delete[] buf2; |
117 |
< |
return true; |
118 |
< |
} |
119 |
< |
|
120 |
< |
|
121 |
< |
/* |
122 |
< |
* Parse LYNX file and construct FileInfo array |
197 |
< |
*/ |
198 |
< |
|
199 |
< |
bool T64Drive::parse_lynx_file(void) |
200 |
< |
{ |
201 |
< |
uint8 *p; |
202 |
< |
int dir_blocks, cur_offset, num_blocks, last_block, i; |
203 |
< |
char type_char; |
204 |
< |
|
205 |
< |
// Dummy directory title |
206 |
< |
strcpy(dir_title, "LYNX ARCHIVE "); |
207 |
< |
|
208 |
< |
// Read header and get number of directory blocks and files contained |
209 |
< |
fseek(the_file, 0x60, SEEK_SET); |
210 |
< |
fscanf(the_file, "%d", &dir_blocks); |
211 |
< |
while (fgetc(the_file) != 0x0d) |
212 |
< |
if (feof(the_file)) |
116 |
> |
if (!parsed_ok) { |
117 |
> |
fclose(new_file); |
118 |
> |
if (the_file) { |
119 |
> |
close_all_channels(); |
120 |
> |
fclose(the_file); |
121 |
> |
the_file = NULL; |
122 |
> |
} |
123 |
|
return false; |
214 |
– |
fscanf(the_file, "%d\015", &num_files); |
215 |
– |
|
216 |
– |
// Construct file information array |
217 |
– |
file_info = new FileInfo[num_files]; |
218 |
– |
cur_offset = dir_blocks * 254; |
219 |
– |
for (i=0; i<num_files; i++) { |
220 |
– |
|
221 |
– |
// Read file name |
222 |
– |
fread(file_info[i].name, 16, 1, the_file); |
223 |
– |
|
224 |
– |
// Strip trailing shift-spaces |
225 |
– |
file_info[i].name[16] = 0xa0; |
226 |
– |
p = (uint8 *)file_info[i].name + 16; |
227 |
– |
while (*p-- == 0xa0) ; |
228 |
– |
p[2] = 0; |
229 |
– |
|
230 |
– |
// Read file length and type |
231 |
– |
fscanf(the_file, "\015%d\015%c\015%d\015", &num_blocks, &type_char, &last_block); |
232 |
– |
|
233 |
– |
switch (type_char) { |
234 |
– |
case 'S': |
235 |
– |
file_info[i].type = FTYPE_SEQ; |
236 |
– |
break; |
237 |
– |
case 'U': |
238 |
– |
file_info[i].type = FTYPE_USR; |
239 |
– |
break; |
240 |
– |
case 'R': |
241 |
– |
file_info[i].type = FTYPE_REL; |
242 |
– |
break; |
243 |
– |
default: |
244 |
– |
file_info[i].type = FTYPE_PRG; |
245 |
– |
break; |
124 |
|
} |
247 |
– |
file_info[i].sa_lo = 0; // Only used for .t64 files |
248 |
– |
file_info[i].sa_hi = 0; |
249 |
– |
file_info[i].offset = cur_offset; |
250 |
– |
file_info[i].length = (num_blocks-1) * 254 + last_block; |
125 |
|
|
126 |
< |
cur_offset += num_blocks * 254; |
126 |
> |
// Close old archive if open, and set new file |
127 |
> |
if (the_file) { |
128 |
> |
close_all_channels(); |
129 |
> |
fclose(the_file); |
130 |
> |
the_file = NULL; |
131 |
> |
} |
132 |
> |
the_file = new_file; |
133 |
> |
return true; |
134 |
|
} |
135 |
< |
|
255 |
< |
return true; |
135 |
> |
return false; |
136 |
|
} |
137 |
|
|
138 |
|
|
140 |
|
* Open channel |
141 |
|
*/ |
142 |
|
|
143 |
< |
uint8 T64Drive::Open(int channel, char *filename) |
143 |
> |
uint8 ArchDrive::Open(int channel, const uint8 *name, int name_len) |
144 |
|
{ |
145 |
+ |
D(bug("ArchDrive::Open channel %d, file %s\n", channel, name)); |
146 |
+ |
|
147 |
|
set_error(ERR_OK); |
148 |
|
|
149 |
|
// Channel 15: Execute file name as command |
150 |
|
if (channel == 15) { |
151 |
< |
execute_command(filename); |
151 |
> |
execute_cmd(name, name_len); |
152 |
|
return ST_OK; |
153 |
|
} |
154 |
|
|
158 |
|
file[channel] = NULL; |
159 |
|
} |
160 |
|
|
161 |
< |
if (filename[0] == '#') { |
161 |
> |
if (name[0] == '#') { |
162 |
|
set_error(ERR_NOCHANNEL); |
163 |
|
return ST_OK; |
164 |
|
} |
168 |
|
return ST_OK; |
169 |
|
} |
170 |
|
|
171 |
< |
if (filename[0] == '$') |
172 |
< |
return open_directory(channel, filename+1); |
171 |
> |
if (name[0] == '$') |
172 |
> |
return open_directory(channel, name + 1, name_len - 1); |
173 |
|
|
174 |
< |
return open_file(channel, filename); |
174 |
> |
return open_file(channel, name, name_len); |
175 |
|
} |
176 |
|
|
177 |
|
|
179 |
|
* Open file |
180 |
|
*/ |
181 |
|
|
182 |
< |
uint8 T64Drive::open_file(int channel, char *filename) |
182 |
> |
uint8 ArchDrive::open_file(int channel, const uint8 *name, int name_len) |
183 |
|
{ |
184 |
< |
char plainname[NAMEBUF_LENGTH]; |
185 |
< |
int filemode = FMODE_READ; |
186 |
< |
int filetype = FTYPE_PRG; |
187 |
< |
int num; |
188 |
< |
|
189 |
< |
convert_filename(filename, plainname, &filemode, &filetype); |
190 |
< |
|
191 |
< |
// Channel 0 is READ PRG, channel 1 is WRITE PRG |
192 |
< |
if (!channel) { |
193 |
< |
filemode = FMODE_READ; |
194 |
< |
filetype = FTYPE_PRG; |
195 |
< |
} |
196 |
< |
if (channel == 1) { |
197 |
< |
filemode = FMODE_WRITE; |
198 |
< |
filetype = FTYPE_PRG; |
184 |
> |
uint8 plain_name[NAMEBUF_LENGTH]; |
185 |
> |
int plain_name_len; |
186 |
> |
int mode = FMODE_READ; |
187 |
> |
int type = FTYPE_DEL; |
188 |
> |
int rec_len = 0; |
189 |
> |
parse_file_name(name, name_len, plain_name, plain_name_len, mode, type, rec_len); |
190 |
> |
|
191 |
> |
// Channel 0 is READ, channel 1 is WRITE |
192 |
> |
if (channel == 0 || channel == 1) { |
193 |
> |
mode = channel ? FMODE_WRITE : FMODE_READ; |
194 |
> |
if (type == FTYPE_DEL) |
195 |
> |
type = FTYPE_PRG; |
196 |
> |
} |
197 |
> |
|
198 |
> |
bool writing = (mode == FMODE_WRITE || mode == FMODE_APPEND); |
199 |
> |
|
200 |
> |
// Wildcards are only allowed on reading |
201 |
> |
if (writing && (strchr((const char *)plain_name, '*') || strchr((const char *)plain_name, '?'))) { |
202 |
> |
set_error(ERR_SYNTAX33); |
203 |
> |
return ST_OK; |
204 |
|
} |
205 |
|
|
206 |
|
// Allow only read accesses |
207 |
< |
if (filemode != FMODE_READ) { |
207 |
> |
if (writing) { |
208 |
|
set_error(ERR_WRITEPROTECT); |
209 |
|
return ST_OK; |
210 |
|
} |
211 |
|
|
212 |
+ |
// Relative files are not supported |
213 |
+ |
if (type == FTYPE_REL) { |
214 |
+ |
set_error(ERR_UNIMPLEMENTED); |
215 |
+ |
return ST_OK; |
216 |
+ |
} |
217 |
+ |
|
218 |
|
// Find file |
219 |
< |
if (find_first_file(plainname, filetype, &num)) { |
219 |
> |
int num; |
220 |
> |
if (find_first_file(plain_name, plain_name_len, num)) { |
221 |
|
|
222 |
|
// Open temporary file |
223 |
|
if ((file[channel] = tmpfile()) != NULL) { |
224 |
|
|
225 |
|
// Write load address (.t64 only) |
226 |
< |
if (!is_lynx) { |
226 |
> |
if (archive_type == TYPE_T64) { |
227 |
|
fwrite(&file_info[num].sa_lo, 1, 1, file[channel]); |
228 |
|
fwrite(&file_info[num].sa_hi, 1, 1, file[channel]); |
229 |
|
} |
230 |
|
|
231 |
< |
// Copy file contents from .t64 file to temp file |
232 |
< |
uint8 *buf = new uint8[file_info[num].length]; |
231 |
> |
// Copy file contents from archive file to temp file |
232 |
> |
uint8 *buf = new uint8[file_info[num].size]; |
233 |
|
fseek(the_file, file_info[num].offset, SEEK_SET); |
234 |
< |
fread(buf, file_info[num].length, 1, the_file); |
235 |
< |
fwrite(buf, file_info[num].length, 1, file[channel]); |
234 |
> |
fread(buf, file_info[num].size, 1, the_file); |
235 |
> |
fwrite(buf, file_info[num].size, 1, file[channel]); |
236 |
|
rewind(file[channel]); |
237 |
|
delete[] buf; |
238 |
|
|
239 |
< |
if (filemode == FMODE_READ) // Read and buffer first byte |
240 |
< |
read_char[channel] = fgetc(file[channel]); |
239 |
> |
if (mode == FMODE_READ) // Read and buffer first byte |
240 |
> |
read_char[channel] = getc(file[channel]); |
241 |
|
} |
242 |
|
} else |
243 |
|
set_error(ERR_FILENOTFOUND); |
247 |
|
|
248 |
|
|
249 |
|
/* |
356 |
– |
* Analyze file name, get access mode and type |
357 |
– |
*/ |
358 |
– |
|
359 |
– |
void T64Drive::convert_filename(char *srcname, char *destname, int *filemode, int *filetype) |
360 |
– |
{ |
361 |
– |
char *p; |
362 |
– |
|
363 |
– |
// Search for ':', p points to first character after ':' |
364 |
– |
if ((p = strchr(srcname, ':')) != NULL) |
365 |
– |
p++; |
366 |
– |
else |
367 |
– |
p = srcname; |
368 |
– |
|
369 |
– |
// Remaining string -> destname |
370 |
– |
strncpy(destname, p, NAMEBUF_LENGTH); |
371 |
– |
|
372 |
– |
// Search for ',' |
373 |
– |
p = destname; |
374 |
– |
while (*p && (*p != ',')) p++; |
375 |
– |
|
376 |
– |
// Look for mode parameters seperated by ',' |
377 |
– |
p = destname; |
378 |
– |
while ((p = strchr(p, ',')) != NULL) { |
379 |
– |
|
380 |
– |
// Cut string after the first ',' |
381 |
– |
*p++ = 0; |
382 |
– |
|
383 |
– |
switch (*p) { |
384 |
– |
case 'P': |
385 |
– |
*filetype = FTYPE_PRG; |
386 |
– |
break; |
387 |
– |
case 'S': |
388 |
– |
*filetype = FTYPE_SEQ; |
389 |
– |
break; |
390 |
– |
case 'U': |
391 |
– |
*filetype = FTYPE_USR; |
392 |
– |
break; |
393 |
– |
case 'L': |
394 |
– |
*filetype = FTYPE_REL; |
395 |
– |
break; |
396 |
– |
case 'R': |
397 |
– |
*filemode = FMODE_READ; |
398 |
– |
break; |
399 |
– |
case 'W': |
400 |
– |
*filemode = FMODE_WRITE; |
401 |
– |
break; |
402 |
– |
case 'A': |
403 |
– |
*filemode = FMODE_APPEND; |
404 |
– |
break; |
405 |
– |
} |
406 |
– |
} |
407 |
– |
} |
408 |
– |
|
409 |
– |
|
410 |
– |
/* |
250 |
|
* Find first file matching wildcard pattern |
251 |
|
*/ |
252 |
|
|
253 |
|
// Return true if name 'n' matches pattern 'p' |
254 |
< |
static bool match(char *p, char *n) |
254 |
> |
static bool match(const uint8 *p, int p_len, const uint8 *n) |
255 |
|
{ |
256 |
< |
if (!*p) // Null pattern matches everything |
418 |
< |
return true; |
419 |
< |
|
420 |
< |
do { |
256 |
> |
while (p_len-- > 0) { |
257 |
|
if (*p == '*') // Wildcard '*' matches all following characters |
258 |
|
return true; |
259 |
|
if ((*p != *n) && (*p != '?')) // Wildcard '?' matches single character |
260 |
|
return false; |
261 |
|
p++; n++; |
262 |
< |
} while (*p); |
262 |
> |
} |
263 |
|
|
264 |
< |
return !(*n); |
264 |
> |
return *n == 0; |
265 |
|
} |
266 |
|
|
267 |
< |
bool T64Drive::find_first_file(char *name, int type, int *num) |
267 |
> |
bool ArchDrive::find_first_file(const uint8 *pattern, int pattern_len, int &num) |
268 |
|
{ |
269 |
< |
for (int i=0; i<num_files; i++) |
270 |
< |
if (match(name, file_info[i].name) && type == file_info[i].type) { |
271 |
< |
*num = i; |
269 |
> |
vector<c64_dir_entry>::const_iterator i, end = file_info.end(); |
270 |
> |
for (i = file_info.begin(), num = 0; i != end; i++, num++) { |
271 |
> |
if (match(pattern, pattern_len, (uint8 *)i->name)) |
272 |
|
return true; |
273 |
< |
} |
438 |
< |
|
273 |
> |
} |
274 |
|
return false; |
275 |
|
} |
276 |
|
|
279 |
|
* Open directory, create temporary file |
280 |
|
*/ |
281 |
|
|
282 |
< |
uint8 T64Drive::open_directory(int channel, char *filename) |
282 |
> |
uint8 ArchDrive::open_directory(int channel, const uint8 *pattern, int pattern_len) |
283 |
|
{ |
449 |
– |
char buf[] = "\001\004\001\001\0\0\022\042 \042 00 2A"; |
450 |
– |
char str[NAMEBUF_LENGTH]; |
451 |
– |
char pattern[NAMEBUF_LENGTH]; |
452 |
– |
char *p, *q; |
453 |
– |
int i, num; |
454 |
– |
int filemode; |
455 |
– |
int filetype; |
456 |
– |
|
284 |
|
// Special treatment for "$0" |
285 |
< |
if (strlen(filename) == 1 && filename[0] == '0') |
286 |
< |
filename += 1; |
285 |
> |
if (pattern[0] == '0' && pattern_len == 1) { |
286 |
> |
pattern++; |
287 |
> |
pattern_len--; |
288 |
> |
} |
289 |
|
|
290 |
< |
// Convert filename ('$' already stripped), filemode/type are ignored |
291 |
< |
convert_filename(filename, pattern, &filemode, &filetype); |
290 |
> |
// Skip everything before the ':' in the pattern |
291 |
> |
uint8 *t = (uint8 *)memchr(pattern, ':', pattern_len); |
292 |
> |
if (t) { |
293 |
> |
t++; |
294 |
> |
pattern_len -= t - pattern; |
295 |
> |
pattern = t; |
296 |
> |
} |
297 |
|
|
298 |
|
// Create temporary file |
299 |
|
if ((file[channel] = tmpfile()) == NULL) |
300 |
|
return ST_OK; |
301 |
|
|
302 |
|
// Create directory title |
303 |
< |
p = &buf[8]; |
304 |
< |
for (i=0; i<16 && dir_title[i]; i++) |
305 |
< |
*p++ = dir_title[i]; |
303 |
> |
uint8 buf[] = "\001\004\001\001\0\0\022\042 \042 00 2A"; |
304 |
> |
for (int i=0; i<16 && dir_title[i]; i++) |
305 |
> |
buf[i + 8] = dir_title[i]; |
306 |
|
fwrite(buf, 1, 32, file[channel]); |
307 |
|
|
308 |
|
// Create and write one line for every directory entry |
309 |
< |
for (num=0; num<num_files; num++) { |
309 |
> |
vector<c64_dir_entry>::const_iterator i, end = file_info.end(); |
310 |
> |
for (i = file_info.begin(); i != end; i++) { |
311 |
|
|
312 |
|
// Include only files matching the pattern |
313 |
< |
if (match(pattern, file_info[num].name)) { |
313 |
> |
if (pattern_len == 0 || match(pattern, pattern_len, (uint8 *)i->name)) { |
314 |
|
|
315 |
|
// Clear line with spaces and terminate with null byte |
316 |
|
memset(buf, ' ', 31); |
317 |
|
buf[31] = 0; |
318 |
|
|
319 |
< |
p = buf; |
319 |
> |
uint8 *p = (uint8 *)buf; |
320 |
|
*p++ = 0x01; // Dummy line link |
321 |
|
*p++ = 0x01; |
322 |
|
|
323 |
|
// Calculate size in blocks (254 bytes each) |
324 |
< |
i = (file_info[num].length + 254) / 254; |
325 |
< |
*p++ = i & 0xff; |
326 |
< |
*p++ = (i >> 8) & 0xff; |
324 |
> |
int n = (i->size + 254) / 254; |
325 |
> |
*p++ = n & 0xff; |
326 |
> |
*p++ = (n >> 8) & 0xff; |
327 |
|
|
328 |
|
p++; |
329 |
< |
if (i < 10) p++; // Less than 10: add one space |
330 |
< |
if (i < 100) p++; // Less than 100: add another space |
329 |
> |
if (n < 10) p++; // Less than 10: add one space |
330 |
> |
if (n < 100) p++; // Less than 100: add another space |
331 |
|
|
332 |
|
// Convert and insert file name |
498 |
– |
strcpy(str, file_info[num].name); |
333 |
|
*p++ = '\"'; |
334 |
< |
q = p; |
335 |
< |
for (i=0; i<16 && str[i]; i++) |
336 |
< |
*q++ = str[i]; |
334 |
> |
uint8 *q = p; |
335 |
> |
for (int j=0; j<16 && i->name[j]; j++) |
336 |
> |
*q++ = i->name[j]; |
337 |
|
*q++ = '\"'; |
338 |
|
p += 18; |
339 |
|
|
340 |
|
// File type |
341 |
< |
switch (file_info[num].type) { |
342 |
< |
case FTYPE_PRG: |
343 |
< |
*p++ = 'P'; |
344 |
< |
*p++ = 'R'; |
345 |
< |
*p++ = 'G'; |
341 |
> |
switch (i->type) { |
342 |
> |
case FTYPE_DEL: |
343 |
> |
*p++ = 'D'; |
344 |
> |
*p++ = 'E'; |
345 |
> |
*p++ = 'L'; |
346 |
|
break; |
347 |
|
case FTYPE_SEQ: |
348 |
|
*p++ = 'S'; |
349 |
|
*p++ = 'E'; |
350 |
|
*p++ = 'Q'; |
351 |
|
break; |
352 |
+ |
case FTYPE_PRG: |
353 |
+ |
*p++ = 'P'; |
354 |
+ |
*p++ = 'R'; |
355 |
+ |
*p++ = 'G'; |
356 |
+ |
break; |
357 |
|
case FTYPE_USR: |
358 |
|
*p++ = 'U'; |
359 |
|
*p++ = 'S'; |
381 |
|
|
382 |
|
// Rewind file for reading and read first byte |
383 |
|
rewind(file[channel]); |
384 |
< |
read_char[channel] = fgetc(file[channel]); |
384 |
> |
read_char[channel] = getc(file[channel]); |
385 |
|
|
386 |
|
return ST_OK; |
387 |
|
} |
391 |
|
* Close channel |
392 |
|
*/ |
393 |
|
|
394 |
< |
uint8 T64Drive::Close(int channel) |
394 |
> |
uint8 ArchDrive::Close(int channel) |
395 |
|
{ |
396 |
+ |
D(bug("ArchDrive::Close channel %d\n", channel)); |
397 |
+ |
|
398 |
|
if (channel == 15) { |
399 |
|
close_all_channels(); |
400 |
|
return ST_OK; |
413 |
|
* Close all channels |
414 |
|
*/ |
415 |
|
|
416 |
< |
void T64Drive::close_all_channels(void) |
416 |
> |
void ArchDrive::close_all_channels(void) |
417 |
|
{ |
418 |
|
for (int i=0; i<15; i++) |
419 |
|
Close(i); |
426 |
|
* Read from channel |
427 |
|
*/ |
428 |
|
|
429 |
< |
uint8 T64Drive::Read(int channel, uint8 *byte) |
429 |
> |
uint8 ArchDrive::Read(int channel, uint8 &byte) |
430 |
|
{ |
431 |
< |
int c; |
431 |
> |
D(bug("ArchDrive::Read channel %d\n", channel)); |
432 |
|
|
433 |
|
// Channel 15: Error channel |
434 |
|
if (channel == 15) { |
435 |
< |
*byte = *error_ptr++; |
435 |
> |
byte = *error_ptr++; |
436 |
|
|
437 |
< |
if (*byte != '\r') |
437 |
> |
if (byte != '\x0d') |
438 |
|
return ST_OK; |
439 |
|
else { // End of message |
440 |
|
set_error(ERR_OK); |
445 |
|
if (!file[channel]) return ST_READ_TIMEOUT; |
446 |
|
|
447 |
|
// Get char from buffer and read next |
448 |
< |
*byte = read_char[channel]; |
449 |
< |
c = fgetc(file[channel]); |
448 |
> |
byte = read_char[channel]; |
449 |
> |
int c = getc(file[channel]); |
450 |
|
if (c == EOF) |
451 |
|
return ST_EOF; |
452 |
|
else { |
460 |
|
* Write to channel |
461 |
|
*/ |
462 |
|
|
463 |
< |
uint8 T64Drive::Write(int channel, uint8 byte, bool eoi) |
463 |
> |
uint8 ArchDrive::Write(int channel, uint8 byte, bool eoi) |
464 |
|
{ |
465 |
+ |
D(bug("ArchDrive::Write channel %d, byte %02x, eoi %d\n", channel, byte, eoi)); |
466 |
+ |
|
467 |
|
// Channel 15: Collect chars and execute command on EOI |
468 |
|
if (channel == 15) { |
469 |
< |
if (cmd_len >= 40) |
469 |
> |
if (cmd_len > 58) { |
470 |
> |
set_error(ERR_SYNTAX32); |
471 |
|
return ST_TIMEOUT; |
472 |
+ |
} |
473 |
|
|
474 |
< |
cmd_buffer[cmd_len++] = byte; |
474 |
> |
cmd_buf[cmd_len++] = byte; |
475 |
|
|
476 |
|
if (eoi) { |
477 |
< |
cmd_buffer[cmd_len] = 0; |
477 |
> |
execute_cmd(cmd_buf, cmd_len); |
478 |
|
cmd_len = 0; |
634 |
– |
execute_command(cmd_buffer); |
479 |
|
} |
480 |
|
return ST_OK; |
481 |
|
} |
490 |
|
|
491 |
|
|
492 |
|
/* |
493 |
< |
* Execute command string |
493 |
> |
* Execute drive commands |
494 |
|
*/ |
495 |
|
|
496 |
< |
void T64Drive::execute_command(char *command) |
496 |
> |
// RENAME:new=old |
497 |
> |
// ^ ^ |
498 |
> |
// new_file old_file |
499 |
> |
void ArchDrive::rename_cmd(const uint8 *new_file, int new_file_len, const uint8 *old_file, int old_file_len) |
500 |
|
{ |
501 |
< |
switch (command[0]) { |
502 |
< |
case 'I': |
503 |
< |
close_all_channels(); |
504 |
< |
set_error(ERR_OK); |
505 |
< |
break; |
501 |
> |
// Check if destination file is already present |
502 |
> |
int num; |
503 |
> |
if (find_first_file(new_file, new_file_len, num)) { |
504 |
> |
set_error(ERR_FILEEXISTS); |
505 |
> |
return; |
506 |
> |
} |
507 |
|
|
508 |
< |
case 'U': |
509 |
< |
if ((command[1] & 0x0f) == 0x0a) { |
510 |
< |
Reset(); |
511 |
< |
} else |
512 |
< |
set_error(ERR_SYNTAX30); |
665 |
< |
break; |
508 |
> |
// Check if source file is present |
509 |
> |
if (!find_first_file(old_file, old_file_len, num)) { |
510 |
> |
set_error(ERR_FILENOTFOUND); |
511 |
> |
return; |
512 |
> |
} |
513 |
|
|
514 |
< |
case 'G': |
515 |
< |
if (command[1] != ':') |
669 |
< |
set_error(ERR_SYNTAX30); |
670 |
< |
else |
671 |
< |
cht64_cmd(&command[2]); |
672 |
< |
break; |
514 |
> |
set_error(ERR_WRITEPROTECT); |
515 |
> |
} |
516 |
|
|
517 |
< |
default: |
518 |
< |
set_error(ERR_SYNTAX30); |
519 |
< |
} |
517 |
> |
// INITIALIZE |
518 |
> |
void ArchDrive::initialize_cmd(void) |
519 |
> |
{ |
520 |
> |
close_all_channels(); |
521 |
> |
} |
522 |
> |
|
523 |
> |
// VALIDATE |
524 |
> |
void ArchDrive::validate_cmd(void) |
525 |
> |
{ |
526 |
|
} |
527 |
|
|
528 |
|
|
529 |
|
/* |
530 |
< |
* Execute 'G' command |
530 |
> |
* Reset drive |
531 |
|
*/ |
532 |
|
|
533 |
< |
void T64Drive::cht64_cmd(char *t64name) |
533 |
> |
void ArchDrive::Reset(void) |
534 |
|
{ |
535 |
< |
char str[NAMEBUF_LENGTH]; |
536 |
< |
char *p = str; |
535 |
> |
close_all_channels(); |
536 |
> |
cmd_len = 0; |
537 |
> |
set_error(ERR_STARTUP); |
538 |
> |
} |
539 |
|
|
689 |
– |
// Convert .t64 file name |
690 |
– |
for (int i=0; i<NAMEBUF_LENGTH && (*p++ = conv_from_64(*t64name++, false)); i++) ; |
540 |
|
|
541 |
< |
close_all_channels(); |
541 |
> |
/* |
542 |
> |
* Check whether file with given header (64 bytes) and size looks like one |
543 |
> |
* of the file types supported by this module |
544 |
> |
*/ |
545 |
|
|
546 |
< |
// G:. resets the .t64 file name to its original setting |
547 |
< |
if (str[0] == '.' && str[1] == 0) |
548 |
< |
open_close_t64_file(orig_t64_name); |
546 |
> |
static bool is_t64_header(const uint8 *header) |
547 |
> |
{ |
548 |
> |
if (memcmp(header, "C64S tape file", 14) == 0 |
549 |
> |
|| memcmp(header, "C64 tape image", 14) == 0 |
550 |
> |
|| memcmp(header, "C64S tape image", 15) == 0) |
551 |
> |
return true; |
552 |
|
else |
553 |
< |
open_close_t64_file(str); |
553 |
> |
return false; |
554 |
> |
} |
555 |
|
|
556 |
< |
if (the_file == NULL) |
557 |
< |
set_error(ERR_NOTREADY); |
556 |
> |
static bool is_lynx_header(const uint8 *header) |
557 |
> |
{ |
558 |
> |
return memcmp(header + 0x38, "USE LYNX", 8) == 0; |
559 |
> |
} |
560 |
> |
|
561 |
> |
static bool is_p00_header(const uint8 *header) |
562 |
> |
{ |
563 |
> |
return memcmp(header, "C64File", 7) == 0; |
564 |
> |
} |
565 |
> |
|
566 |
> |
bool IsArchFile(const char *path, const uint8 *header, long size) |
567 |
> |
{ |
568 |
> |
return is_t64_header(header) || is_lynx_header(header) || is_p00_header(header); |
569 |
|
} |
570 |
|
|
571 |
|
|
572 |
|
/* |
573 |
< |
* Reset drive |
573 |
> |
* Read directory of archive file into (empty) c64_dir_entry vector, |
574 |
> |
* returns false on error |
575 |
|
*/ |
576 |
|
|
577 |
< |
void T64Drive::Reset(void) |
577 |
> |
static bool parse_t64_file(FILE *f, vector<c64_dir_entry> &vec, char *dir_title) |
578 |
|
{ |
579 |
< |
close_all_channels(); |
580 |
< |
cmd_len = 0; |
581 |
< |
set_error(ERR_STARTUP); |
579 |
> |
// Read header and get maximum number of files contained |
580 |
> |
fseek(f, 32, SEEK_SET); |
581 |
> |
uint8 buf[32]; |
582 |
> |
fread(&buf, 32, 1, f); |
583 |
> |
int max = (buf[3] << 8) | buf[2]; |
584 |
> |
if (max == 0) |
585 |
> |
max = 1; |
586 |
> |
|
587 |
> |
memcpy(dir_title, buf+8, 16); |
588 |
> |
|
589 |
> |
// Allocate buffer for file records and read them |
590 |
> |
uint8 *buf2 = new uint8[max * 32]; |
591 |
> |
fread(buf2, 32, max, f); |
592 |
> |
|
593 |
> |
// Determine number of files contained |
594 |
> |
int num_files = 0; |
595 |
> |
for (int i=0; i<max; i++) |
596 |
> |
if (buf2[i*32] == 1) |
597 |
> |
num_files++; |
598 |
> |
|
599 |
> |
if (!num_files) { |
600 |
> |
delete[] buf2; |
601 |
> |
return false; |
602 |
> |
} |
603 |
> |
|
604 |
> |
// Construct file information array |
605 |
> |
vec.reserve(num_files); |
606 |
> |
uint8 *b = buf2; |
607 |
> |
for (int i=0; i<max; i++, b+=32) { |
608 |
> |
if (b[0] == 1) { |
609 |
> |
|
610 |
> |
// Convert file name (strip trailing spaces) |
611 |
> |
uint8 name_buf[17]; |
612 |
> |
memcpy(name_buf, b + 16, 16); |
613 |
> |
name_buf[16] = 0x20; |
614 |
> |
uint8 *p = name_buf + 16; |
615 |
> |
while (*p-- == 0x20) ; |
616 |
> |
p[2] = 0; |
617 |
> |
|
618 |
> |
// Find file size and offset |
619 |
> |
size_t size = ((b[5] << 8) | b[4]) - ((b[3] << 8) | b[2]); |
620 |
> |
off_t offset = (b[11] << 24) | (b[10] << 16) | (b[9] << 8) | b[8]; |
621 |
> |
|
622 |
> |
// Add entry |
623 |
> |
vec.push_back(c64_dir_entry(name_buf, FTYPE_PRG, false, false, size, offset, b[2], b[3])); |
624 |
> |
} |
625 |
> |
} |
626 |
> |
|
627 |
> |
delete[] buf2; |
628 |
> |
return true; |
629 |
|
} |
630 |
|
|
631 |
+ |
static bool parse_lynx_file(FILE *f, vector<c64_dir_entry> &vec, char *dir_title) |
632 |
+ |
{ |
633 |
+ |
// Dummy directory title |
634 |
+ |
strcpy(dir_title, "LYNX ARCHIVE "); |
635 |
|
|
636 |
< |
/* |
637 |
< |
* Conversion PETSCII->ASCII |
638 |
< |
*/ |
636 |
> |
// Read header and get number of directory blocks and files contained |
637 |
> |
fseek(f, 0x60, SEEK_SET); |
638 |
> |
int dir_blocks; |
639 |
> |
fscanf(f, "%d", &dir_blocks); |
640 |
> |
while (getc(f) != 0x0d) |
641 |
> |
if (feof(f)) |
642 |
> |
return false; |
643 |
> |
int num_files; |
644 |
> |
fscanf(f, "%d\x0d", &num_files); |
645 |
> |
|
646 |
> |
// Construct file information array |
647 |
> |
vec.reserve(num_files); |
648 |
> |
int cur_offset = dir_blocks * 254; |
649 |
> |
for (int i=0; i<num_files; i++) { |
650 |
> |
|
651 |
> |
// Read and convert file name (strip trailing shift-spaces) |
652 |
> |
uint8 name_buf[17]; |
653 |
> |
fread(name_buf, 16, 1, f); |
654 |
> |
name_buf[16] = 0xa0; |
655 |
> |
uint8 *p = name_buf + 16; |
656 |
> |
while (*p-- == 0xa0) ; |
657 |
> |
p[2] = 0; |
658 |
> |
|
659 |
> |
// Read file length and type |
660 |
> |
int num_blocks, last_block; |
661 |
> |
char type_char; |
662 |
> |
fscanf(f, "\x0d%d\x0d%c\x0d%d\x0d", &num_blocks, &type_char, &last_block); |
663 |
> |
size_t size = (num_blocks - 1) * 254 + last_block - 1; |
664 |
|
|
665 |
< |
uint8 T64Drive::conv_from_64(uint8 c, bool map_slash) |
665 |
> |
int type; |
666 |
> |
switch (type_char) { |
667 |
> |
case 'S': |
668 |
> |
type = FTYPE_SEQ; |
669 |
> |
break; |
670 |
> |
case 'U': |
671 |
> |
type = FTYPE_USR; |
672 |
> |
break; |
673 |
> |
case 'R': |
674 |
> |
type = FTYPE_REL; |
675 |
> |
break; |
676 |
> |
default: |
677 |
> |
type = FTYPE_PRG; |
678 |
> |
break; |
679 |
> |
} |
680 |
> |
|
681 |
> |
// Read start address |
682 |
> |
long here = ftell(f); |
683 |
> |
uint8 sa_lo, sa_hi; |
684 |
> |
fseek(f, cur_offset, SEEK_SET); |
685 |
> |
fread(&sa_lo, 1, 1, f); |
686 |
> |
fread(&sa_hi, 1, 1, f); |
687 |
> |
fseek(f, here, SEEK_SET); |
688 |
> |
|
689 |
> |
// Add entry |
690 |
> |
vec.push_back(c64_dir_entry(name_buf, type, false, false, size, cur_offset, sa_lo, sa_hi)); |
691 |
> |
|
692 |
> |
cur_offset += num_blocks * 254; |
693 |
> |
} |
694 |
> |
|
695 |
> |
return true; |
696 |
> |
} |
697 |
> |
|
698 |
> |
static bool parse_p00_file(FILE *f, vector<c64_dir_entry> &vec, char *dir_title) |
699 |
|
{ |
700 |
< |
if ((c >= 'A') && (c <= 'Z') || (c >= 'a') && (c <= 'z')) |
701 |
< |
return c ^ 0x20; |
702 |
< |
if ((c >= 0xc1) && (c <= 0xda)) |
703 |
< |
return c ^ 0x80; |
704 |
< |
if ((c == '/') && map_slash && ThePrefs.MapSlash) |
705 |
< |
return '\\'; |
706 |
< |
return c; |
700 |
> |
// Dummy directory title |
701 |
> |
strcpy(dir_title, ".P00 FILE "); |
702 |
> |
|
703 |
> |
// Contains only one file |
704 |
> |
vec.reserve(1); |
705 |
> |
|
706 |
> |
// Read file name and start address |
707 |
> |
uint8 name_buf[17]; |
708 |
> |
fseek(f, 8, SEEK_SET); |
709 |
> |
fread(name_buf, 17, 1, f); |
710 |
> |
name_buf[16] = 0; |
711 |
> |
uint8 sa_lo, sa_hi; |
712 |
> |
fseek(f, 26, SEEK_SET); |
713 |
> |
fread(&sa_lo, 1, 1, f); |
714 |
> |
fread(&sa_hi, 1, 1, f); |
715 |
> |
|
716 |
> |
// Get file size |
717 |
> |
fseek(f, 0, SEEK_END); |
718 |
> |
size_t size = ftell(f) - 26; |
719 |
> |
|
720 |
> |
// Add entry |
721 |
> |
vec.push_back(c64_dir_entry(name_buf, FTYPE_PRG, false, false, size, 26, sa_lo, sa_hi)); |
722 |
> |
return true; |
723 |
> |
} |
724 |
> |
|
725 |
> |
bool ReadArchDirectory(const char *path, vector<c64_dir_entry> &vec) |
726 |
> |
{ |
727 |
> |
// Open file |
728 |
> |
FILE *f = fopen(path, "rb"); |
729 |
> |
if (f) { |
730 |
> |
|
731 |
> |
// Read header |
732 |
> |
uint8 header[64]; |
733 |
> |
fread(header, 1, sizeof(header), f); |
734 |
> |
|
735 |
> |
// Determine archive type and parse archive |
736 |
> |
bool result = false; |
737 |
> |
char dir_title[16]; |
738 |
> |
if (is_t64_header(header)) |
739 |
> |
result = parse_t64_file(f, vec, dir_title); |
740 |
> |
else if (is_lynx_header(header)) |
741 |
> |
result = parse_lynx_file(f, vec, dir_title); |
742 |
> |
else if (is_p00_header(header)) |
743 |
> |
result = parse_p00_file(f, vec, dir_title); |
744 |
> |
|
745 |
> |
fclose(f); |
746 |
> |
return result; |
747 |
> |
} else |
748 |
> |
return false; |
749 |
|
} |