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- /*
- ** LZX Extract in (supposedly) portable C.
- **
- ** Based on unlzx 1.0 by David Tritscher.
- ** Rewritten by Oliver Gantert <lucyg@t-online.de>
- **
- ** Compiled with vbcc/Amiga and lcc/Win32
- */
- /*
- Added some support for using with WinCommander MultiArc.
- Siarzhuk Zharski - 2.10.2k
- */
-
- #include "unlzx.h"
-
- #ifdef AMIGA
- static unsigned char *version_string = "$VER: UnLZX " UNLZX_VERSION " (" UNLZX_VERDATE ")";
- #endif
-
- #ifndef PMATCH_MAXSTRLEN
- #define PMATCH_MAXSTRLEN 1024 /* max string length */
- #endif
-
- unsigned char match_pattern[256] = { '*', '\0' };
- signed long use_outdir = 0;
- unsigned char output_dir[768] = { '\0' };
- unsigned char work_buffer[1024];
-
- signed long mode;
-
- unsigned char info_header[10];
- unsigned char archive_header[31];
- unsigned char header_filename[256];
- unsigned char header_comment[256];
-
- unsigned long pack_size;
- unsigned long unpack_size;
-
- unsigned long crc;
- unsigned long year, month, day;
- unsigned long hour, minute, second;
- unsigned char attributes;
- unsigned char pack_mode;
-
- struct filename_node *filename_list;
-
- unsigned char read_buffer[16384];
- unsigned char decrunch_buffer[66560];
-
- unsigned char *source;
- unsigned char *destination;
- unsigned char *source_end;
- unsigned char *destination_end;
-
- unsigned long decrunch_method;
- unsigned long decrunch_length;
- unsigned long last_offset;
- unsigned long global_control;
- signed long global_shift;
-
- unsigned char offset_len[8];
- unsigned short offset_table[128];
- unsigned char huffman20_len[20];
- unsigned short huffman20_table[96];
- unsigned char literal_len[768];
- unsigned short literal_table[5120];
-
- const unsigned char *month_str[16] =
- {
- "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug",
- "sep", "oct", "nov", "dec", "?13", "?14", "?15", "?16"
- };
-
- unsigned long sum;
-
- const unsigned long crc_table[256] =
- {
- 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F,
- 0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
- 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2,
- 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
- 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9,
- 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
- 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C,
- 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
- 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423,
- 0xCFBA9599, 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
- 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190, 0x01DB7106,
- 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
- 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D,
- 0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
- 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950,
- 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
- 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7,
- 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
- 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA,
- 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
- 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81,
- 0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
- 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84,
- 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
- 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB,
- 0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
- 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, 0xA1D1937E,
- 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
- 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55,
- 0x316E8EEF, 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
- 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28,
- 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
- 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F,
- 0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
- 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242,
- 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
- 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69,
- 0x616BFFD3, 0x166CCF45, 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
- 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC,
- 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
- 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693,
- 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
- 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
- };
-
- const unsigned char table_one[32] =
- {
- 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x02, 0x02,
- 0x03, 0x03, 0x04, 0x04, 0x05, 0x05, 0x06, 0x06,
- 0x07, 0x07, 0x08, 0x08, 0x09, 0x09, 0x0a, 0x0a,
- 0x0b, 0x0b, 0x0c, 0x0c, 0x0d, 0x0d, 0x0e, 0x0e
- };
-
- const unsigned long table_two[32]=
- {
- 0, 1, 2, 3,
- 4, 6, 8, 12,
- 16, 24, 32, 48,
- 64, 96, 128, 192,
- 256, 384, 512, 768,
- 1024, 1536, 2048, 3072,
- 4096, 6144, 8192, 12288,
- 16384,24576,32768,49152
- };
-
- const unsigned long table_three[16]=
- {
- 0, 1, 3, 7,
- 15, 31, 63, 127,
- 255, 511, 1023, 2047,
- 4095, 8191, 16383,32767
- };
-
- const unsigned char table_four[34]=
- {
- 0, 1, 2, 3,
- 4, 5, 6, 7,
- 8, 9, 10, 11,
- 12, 13, 14, 15,
- 16, 0, 1, 2,
- 3, 4, 5, 6,
- 7, 8, 9, 10,
- 11, 12, 13, 14,
- 15, 16
- };
-
- /* -------------------------------------------------------------------------- */
-
- int pmatch(const char *mask, const char *name)
- {
- int calls = 0,
- wild = 0,
- q = 0;
- const char * m = mask,
- * n = name,
- * ma = mask,
- * na = name;
-
- for(;;)
- {
- if (++calls > PMATCH_MAXSTRLEN) return(1);
- if (*m == '*')
- {
- while (*m == '*') ++m;
- wild = 1;
- ma = m;
- na = n;
- }
- if (!*m)
- {
- if (!*n) return(0);
- for (--m; (m > mask) && (*m == '?'); --m);
- if ((*m == '*') && (m > mask) && (m[-1] != '\\')) return(0);
- if (!wild) return(1);
- m = ma;
- }
- else if (!*n)
- {
- while(*m == '*') ++m;
- return(*m != 0);
- }
- if ((*m == '\\') && ((m[1] == '*') || (m[1] == '?')))
- {
- ++m;
- q = 1;
- }
- else
- {
- q = 0;
- }
- if ((tolower(*m) != tolower(*n)) && ((*m != '?') || q))
- {
- if (!wild) return(1);
- m = ma;
- n = ++na;
- }
- else
- {
- if (*m) ++m;
- if (*n) ++n;
- }
- }
- }
-
- void just_wait(void)
- {
- /*
- Under certain conditions UnLZX needs to wait
- some cycles for disk access to finish. This
- only seems to happen on fast CPUs, but it
- doesn't hurt anyway...
- */
- }
-
- unsigned long argopt(unsigned char * ao_strg, unsigned long ao_argc, unsigned char **ao_argv)
- {
- while(ao_argc > 1)
- {
- if (!strcmp(ao_strg, ao_argv[ao_argc - 1]))
- return(ao_argc - 1);
- ao_argc--;
- }
- return(0);
- }
-
- void crc_calc(unsigned char *memory, unsigned long length)
- {
- unsigned long temp;
-
- if (length)
- {
- temp = ~sum;
- do
- {
- temp = crc_table[(*memory++ ^ temp) & 255] ^ (temp >> 8);
- } while(--length);
- sum = ~temp;
- }
- }
-
- signed long make_decode_table(signed long number_symbols, signed long table_size, unsigned char *length, unsigned short *table)
- {
- unsigned char bit_num = 0;
- signed long symbol, abort = 0;
- unsigned long leaf, table_mask, bit_mask, pos, fill, next_symbol, reverse;
-
- pos = 0;
- table_mask = 1 << table_size;
- bit_mask = table_mask >> 1;
- bit_num++;
- while ((!abort) && (bit_num <= table_size))
- {
- for (symbol = 0; symbol < number_symbols; symbol++)
- {
- if (length[symbol] == bit_num)
- {
- reverse = pos;
- leaf = 0;
- fill = table_size;
- do
- {
- leaf = (leaf << 1)+(reverse & 1);
- reverse >>= 1;
- } while (--fill);
- if ((pos += bit_mask) > table_mask)
- {
- abort = 1;
- break;
- }
- fill = bit_mask;
- next_symbol = 1 << bit_num;
- do
- {
- table[leaf] = symbol;
- leaf += next_symbol;
- } while (--fill);
- }
- }
- bit_mask >>= 1;
- bit_num++;
- }
- if ((!abort) && (pos != table_mask))
- {
- for (symbol = pos; symbol < table_mask; symbol++)
- {
- reverse = symbol;
- leaf = 0;
- fill = table_size;
- do
- {
- leaf = (leaf << 1)+(reverse & 1);
- reverse >>= 1;
- } while (--fill);
- table[leaf] = 0;
- }
- next_symbol = table_mask >> 1;
- pos <<= 16;
- table_mask <<= 16;
- bit_mask = 32768;
- while((!abort) && (bit_num <= 16))
- {
- for(symbol = 0; symbol < number_symbols; symbol++)
- {
- if (length[symbol] == bit_num)
- {
- reverse = pos >> 16;
- leaf = 0;
- fill = table_size;
- do
- {
- leaf = (leaf << 1)+(reverse & 1);
- reverse >>= 1;
- } while (--fill);
- for (fill = 0; fill < bit_num - table_size; fill++)
- {
- if (!table[leaf])
- {
- table[(next_symbol << 1)] = 0;
- table[(next_symbol << 1) + 1] = 0;
- table[leaf] = next_symbol++;
- }
- leaf = table[leaf] << 1;
- leaf += (pos >> (15 - fill)) & 1;
- }
- table[leaf] = symbol;
- if ((pos += bit_mask) > table_mask)
- {
- abort = 1;
- break;
- }
- }
- }
- bit_mask >>= 1;
- bit_num++;
- }
- }
- if (pos != table_mask) abort = 1;
- return(abort);
- }
-
- signed long read_literal_table(void)
- {
- signed long shift = global_shift, abort = 0;
- unsigned long control = global_control, temp, symbol, pos, count, fix, max_symbol;
-
- if (shift < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- decrunch_method = control & 7;
- control >>= 3;
- if ((shift -= 3) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- if ((!abort) && (decrunch_method == 3))
- {
- for (temp = 0; temp < 8; temp++)
- {
- offset_len[temp] = control & 7;
- control >>= 3;
- if ((shift -= 3) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- }
- abort = make_decode_table(8, 7, offset_len, offset_table);
- }
- if (!abort)
- {
- decrunch_length = (control & 255) << 16;
- control >>= 8;
- if ((shift -= 8) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- decrunch_length += (control & 255) << 8;
- control >>= 8;
- if ((shift -= 8) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- decrunch_length += (control & 255);
- control >>= 8;
- if ((shift -= 8) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- }
- if ((!abort) && (decrunch_method != 1))
- {
- pos = 0;
- fix = 1;
- max_symbol = 256;
- do
- {
- for (temp = 0; temp < 20; temp++)
- {
- huffman20_len[temp] = control & 15;
- control >>= 4;
- if ((shift -= 4) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- }
- if (abort = make_decode_table(20, 6, huffman20_len, huffman20_table)) break;
- do
- {
- if ((symbol = huffman20_table[control & 63]) >= 20)
- {
- do
- {
- symbol = huffman20_table[((control >> 6) & 1) + (symbol << 1)];
- if (!shift--)
- {
- shift += 16;
- control += *source++ << 24;
- control += *source++ << 16;
- }
- control >>= 1;
- } while(symbol >= 20);
- temp = 6;
- }
- else
- {
- temp = huffman20_len[symbol];
- }
- control >>= temp;
- if ((shift -= temp) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- switch(symbol)
- {
- case 17:
- case 18:
- if(symbol == 17)
- {
- temp = 4;
- count = 3;
- }
- else
- {
- temp = 6 - fix;
- count = 19;
- }
- count += (control & table_three[temp]) + fix;
- control >>= temp;
- if ((shift -= temp) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- while ((pos < max_symbol) && (count--)) literal_len[pos++] = 0;
- break;
- case 19:
- count = (control & 1) + 3 + fix;
- if (!shift--)
- {
- shift += 16;
- control += *source++ << 24;
- control += *source++ << 16;
- }
- control >>= 1;
- if ((symbol = huffman20_table[control & 63]) >= 20)
- {
- do
- {
- symbol = huffman20_table[((control >> 6) & 1) + (symbol << 1)];
- if (!shift--)
- {
- shift += 16;
- control += *source++ << 24;
- control += *source++ << 16;
- }
- control >>= 1;
- } while(symbol >= 20);
- temp = 6;
- }
- else
- {
- temp = huffman20_len[symbol];
- }
- control >>= temp;
- if ((shift -= temp) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- symbol = table_four[literal_len[pos] + 17 - symbol];
- while ((pos < max_symbol) && (count--)) literal_len[pos++] = symbol;
- break;
- default:
- symbol = table_four[literal_len[pos] + 17 - symbol];
- literal_len[pos++] = symbol;
- break;
- }
- } while(pos < max_symbol);
- fix--;
- max_symbol += 512;
- } while(max_symbol == 768);
- if(!abort) abort = make_decode_table(768, 12, literal_len, literal_table);
- }
- global_control = control;
- global_shift = shift;
- return(abort);
- }
-
- void decrunch(void)
- {
- unsigned long control = global_control, temp, symbol, count;
- signed long shift = global_shift;
- unsigned char *string;
-
- do
- {
- if ((symbol = literal_table[control & 4095]) >= 768)
- {
- control >>= 12;
- if ((shift -= 12) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- do
- {
- symbol = literal_table[(control & 1) + (symbol << 1)];
- if (!shift--)
- {
- shift += 16;
- control += *source++ << 24;
- control += *source++ << 16;
- }
- control >>= 1;
- } while(symbol >= 768);
- }
- else
- {
- temp = literal_len[symbol];
- control >>= temp;
- if ((shift -= temp) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- }
- if (symbol < 256)
- {
- *destination++ = symbol;
- }
- else
- {
- symbol -= 256;
- count = table_two[temp = symbol & 31];
- temp = table_one[temp];
- if ((temp >= 3) && (decrunch_method == 3))
- {
- temp -= 3;
- count += ((control & table_three[temp]) << 3);
- control >>= temp;
- if ((shift -= temp) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- count += (temp = offset_table[control & 127]);
- temp = offset_len[temp];
- }
- else
- {
- count += control & table_three[temp];
- if (!count) count = last_offset;
- }
- control >>= temp;
- if ((shift -= temp) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- last_offset = count;
- count = table_two[temp = (symbol >> 5) & 15] + 3;
- temp = table_one[temp];
- count += (control & table_three[temp]);
- control >>= temp;
- if ((shift -= temp) < 0)
- {
- shift += 16;
- control += *source++ << (8 + shift);
- control += *source++ << shift;
- }
- string = (decrunch_buffer + last_offset < destination) ? destination - last_offset : destination + 65536 - last_offset;
- do
- {
- *destination++ = *string++;
- } while(--count);
- }
- } while((destination < destination_end) && (source < source_end));
- global_control = control;
- global_shift = shift;
- }
-
- FILE *open_output(unsigned char * filename)
- {
- unsigned long temp, /*SZ*/ last_dir_sep=0;
- FILE *file;
-
- if (!(file = fopen(filename, "wb")))
- {
- for(temp = 0; filename[temp]; temp++)
- {
- if (filename[temp] == '/')
- {
- last_dir_sep = temp;
- /*SZ - skip directories creating
- filename[temp] = 0;
- mkdir(filename, 511);
- filename[temp] = '/';
- */
- }
- }
- //SZ
- //file = fopen(filename, "wb");
- file = fopen(&filename[last_dir_sep+1], "wb");
- }
- return(file);
- }
-
- signed long extract_normal(FILE *in_file)
- {
- struct filename_node *node;
- FILE *out_file = 0;
- unsigned char *pos, *temp;
- unsigned long count;
- signed long abort = 0;
-
- global_control = 0;
- global_shift = -16;
- last_offset = 1;
- unpack_size = 0;
- decrunch_length = 0;
- for(count = 0; count < 8; count++) offset_len[count] = 0;
- for(count = 0; count < 768; count ++) literal_len[count] = 0;
- source_end = (source = read_buffer + 16384) - 1024;
- pos = destination_end = destination = decrunch_buffer + 65794;
- for (node = filename_list; (!abort) && node; node = node->next)
- {
- sum = 0;
- printf("Extracting \"%s\"...", node->filename);
- if (use_outdir)
- {
- strcpy(work_buffer, output_dir);
- strcat(work_buffer, node->filename);
- }
- else
- {
- strcpy(work_buffer, node->filename);
- }
- fflush(stdout);
- if (!pmatch(match_pattern, node->filename))
- out_file = open_output(work_buffer);
- else
- out_file = 0;
- unpack_size = node->length;
- while(unpack_size > 0)
- {
- if (pos == destination)
- {
- if(source >= source_end)
- {
- temp = read_buffer;
- if (count = temp - source + 16384)
- {
- do
- {
- *temp++ = *source++;
- } while(--count);
- }
- source = read_buffer;
- count = source - temp + 16384;
- if (pack_size < count) count = pack_size;
- if (fread(temp, 1, count, in_file) != count)
- {
- printf("\n");
- #ifdef UNLZX_DEBUG
- if (ferror(in_file))
- {
- perror("FRead(Data)");
- }
- else
- {
- fprintf(stderr, "EOF: Data\n");
- }
- #endif
- abort = 1;
- break;
- }
- pack_size -= count;
- temp += count;
- if (source >= temp) break;
- }
- if (decrunch_length <= 0)
- {
- if (read_literal_table()) break;
- }
- if (destination >= decrunch_buffer + 65794)
- {
- if (count = destination - decrunch_buffer - 65536)
- {
- temp = (destination = decrunch_buffer) + 65536;
- do
- {
- *destination++ = *temp++;
- } while(--count);
- }
- pos = destination;
- }
- destination_end = destination + decrunch_length;
- if(destination_end > decrunch_buffer + 65794) destination_end = decrunch_buffer + 65794;
- temp = destination;
- decrunch();
- decrunch_length -= (destination - temp);
- }
- count = destination - pos;
- if (count > unpack_size) count = unpack_size;
- crc_calc(pos, count);
- if (out_file)
- {
- if (fwrite(pos, 1, count, out_file) != count)
- {
- #ifdef UNLZX_DEBUG
- perror("FWrite");
- #endif
- fclose(out_file);
- out_file = 0;
- }
- }
- unpack_size -= count;
- pos += count;
- }
- if (out_file)
- {
- fclose(out_file);
- if (!abort) printf(" crc %s\n", (node->crc == sum) ? "good" : "bad");
- }
- }
- return(abort);
- }
-
- signed long extract_store(FILE *in_file)
- {
- struct filename_node *node;
- FILE *out_file;
- unsigned long count;
- signed long abort = 0;
-
- for (node = filename_list; (!abort) && (node); node = node->next)
- {
- sum = 0;
- printf("Storing \"%s\"...", node->filename);
- if (use_outdir)
- {
- strcpy(work_buffer, output_dir);
- strcat(work_buffer, node->filename);
- }
- else
- {
- strcpy(work_buffer, node->filename);
- }
- fflush(stdout);
- if (!pmatch(match_pattern, node->filename))
- out_file = open_output(work_buffer);
- else
- out_file = 0;
- unpack_size = node->length;
- if (unpack_size > pack_size) unpack_size = pack_size;
- while (unpack_size > 0)
- {
- count = (unpack_size > 16384) ? 16384 : unpack_size;
- if (fread(read_buffer, 1, count, in_file) != count)
- {
- printf("\n");
- #ifdef UNLZX_DEBUG
- if (ferror(in_file))
- {
- perror("FRead(Data)");
- }
- else
- {
- fprintf(stderr, "EOF: Data\n");
- }
- #endif
- abort = 1;
- break;
- }
- pack_size -= count;
- crc_calc(read_buffer, count);
- if (out_file)
- {
- if (fwrite(read_buffer, 1, count, out_file) != count)
- {
- #ifdef UNLZX_DEBUG
- perror("FWrite");
- #endif
- fclose(out_file);
- out_file = 0;
- }
- }
- unpack_size -= count;
- }
- if (out_file)
- {
- fclose(out_file);
- if (!abort) printf(" crc %s\n", (node->crc == sum) ? "good" : "bad");
- }
- }
- return(abort);
- }
-
- signed long extract_unknown(FILE *in_file)
- {
- struct filename_node *node;
-
- for (node = filename_list; (node); node = node->next)
- {
- printf("Unknown \"%s\"\n", node->filename);
- }
- return(0);
- }
-
- signed long extract_archive(FILE *in_file)
- {
- unsigned long temp;
- struct filename_node **filename_next;
- struct filename_node *node;
- struct filename_node *temp_node;
- signed long actual, abort, result = 1;
-
- filename_list = 0;
- filename_next = &filename_list;
- do
- {
- abort = 1;
- actual = fread(archive_header, 1, 31, in_file);
- if (!ferror(in_file))
- {
- if (actual)
- {
- if (actual == 31)
- {
- sum = 0;
- crc = (archive_header[29] << 24) + (archive_header[28] << 16) + (archive_header[27] << 8) + archive_header[26];
- archive_header[29] =
- archive_header[28] =
- archive_header[27] =
- archive_header[26] = 0;
- crc_calc(archive_header, 31);
- temp = archive_header[30];
- actual = fread(header_filename, 1, temp, in_file);
- if (!ferror(in_file))
- {
- if (actual == temp)
- {
- header_filename[temp] = 0;
- crc_calc(header_filename, temp);
- temp = archive_header[14];
- actual = fread(header_comment, 1, temp, in_file);
- if (!ferror(in_file))
- {
- if (actual == temp)
- {
- header_comment[temp] = 0;
- crc_calc(header_comment, temp);
- if (sum == crc)
- {
- unpack_size = (archive_header[5] << 24) + (archive_header[4] << 16) + (archive_header[3] << 8) + archive_header[2];
- pack_size = (archive_header[9] << 24) + (archive_header[8] << 16) + (archive_header[7] << 8) + archive_header[6];
- pack_mode = archive_header[11];
- crc = (archive_header[25] << 24) + (archive_header[24] << 16) + (archive_header[23] << 8) + archive_header[22];
- if (node = (struct filename_node *)malloc(sizeof(struct filename_node)))
- {
- *filename_next = node;
- filename_next = &(node->next);
- node->next = 0;
- node->length = unpack_size;
- node->crc = crc;
- for (temp = 0; node->filename[temp] = header_filename[temp]; temp++);
- if (pack_size)
- {
- switch(pack_mode)
- {
- case 0:
- abort = extract_store(in_file);
- break;
- case 2:
- abort = extract_normal(in_file);
- break;
- default:
- abort = extract_unknown(in_file);
- break;
- }
- if (abort) break;
- temp_node = filename_list;
- while (node = temp_node)
- {
- temp_node = node->next;
- free(node);
- }
- filename_list = 0;
- filename_next = &filename_list;
- if (fseek(in_file, pack_size, SEEK_CUR))
- {
- #ifdef UNLZX_DEBUG
- perror("FSeek(Data)");
- #endif
- break;
- }
- }
- else
- {
- abort = 0;
- }
- }
- #ifdef UNLZX_DEBUG
- else
- {
- fprintf(stderr, "MAlloc(Filename_node)\n");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- fprintf(stderr, "CRC: Archive_Header\n");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- fprintf(stderr, "EOF: Header_Comment\n");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- perror("FRead(Header_Comment)");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- fprintf(stderr, "EOF: Header_Filename\n");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- perror("FRead(Header_Filename)");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- fprintf(stderr, "EOF: Archive_Header\n");
- }
- #endif
- }
- else
- {
- result = 0;
- }
- }
- #ifdef UNLZX_DEBUG
- else
- {
- perror("FRead(Archive_Header)");
- }
- #endif
- } while(!abort);
- temp_node = filename_list;
- while(node = temp_node)
- {
- temp_node = node->next;
- free(node);
- }
- return(result);
- }
-
- signed long view_archive(FILE *in_file)
- {
- unsigned long temp, total_pack = 0, total_unpack = 0, total_files = 0, merge_size = 0;
- signed long actual, abort, result = 1;
-
- printf("Unpacked Packed Time Date Attrib Name\n");
- // SZ
- //printf("-------- -------- -------- ----------- -------- ----\n");
- printf("BEGIN -- -------- -------- ----------- -------- ----\n");
- do
- {
- abort = 1;
- actual = fread(archive_header, 1, 31, in_file);
- if (!ferror(in_file))
- {
- if (actual)
- {
- if (actual == 31)
- {
- sum = 0;
- crc = (archive_header[29] << 24) + (archive_header[28] << 16) + (archive_header[27] << 8) + archive_header[26];
- archive_header[29] =
- archive_header[28] =
- archive_header[27] =
- archive_header[26] = 0;
- crc_calc(archive_header, 31);
- temp = archive_header[30];
- actual = fread(header_filename, 1, temp, in_file);
- if (!ferror(in_file))
- {
- if (actual == temp)
- {
- header_filename[temp] = 0;
- crc_calc(header_filename, temp);
- temp = archive_header[14];
- actual = fread(header_comment, 1, temp, in_file);
- if (!ferror(in_file))
- {
- if (actual == temp)
- {
- header_comment[temp] = 0;
- crc_calc(header_comment, temp);
- if (sum == crc)
- {
- attributes = archive_header[0];
- unpack_size = (archive_header[5] << 24) + (archive_header[4] << 16) + (archive_header[3] << 8) + archive_header[2];
- pack_size = (archive_header[9] << 24) + (archive_header[8] << 16) + (archive_header[7] << 8) + archive_header[6];
- temp = (archive_header[18] << 24) + (archive_header[19] << 16) + (archive_header[20] << 8) + archive_header[21];
- year = ((temp >> 17) & 63) + 1970;
- month = (temp >> 23) & 15;
- day = (temp >> 27) & 31;
- hour = (temp >> 12) & 31;
- minute = (temp >> 6) & 63;
- second = temp & 63;
- total_pack += pack_size;
- total_unpack += unpack_size;
- total_files++;
- merge_size += unpack_size;
- printf("%8ld ", unpack_size);
- if (archive_header[12] & 1)
- {
- printf(" n/a ");
- }
- else
- {
- printf("%8ld ", pack_size);
- }
- printf("%02ld:%02ld:%02ld ", hour, minute, second);
- printf("%2ld-%s-%4ld ", day, month_str[month], year);
- printf("%c%c%c%c%c%c%c%c ",
- (attributes & 32) ? 'h' : '-',
- (attributes & 64) ? 's' : '-',
- (attributes & 128) ? 'p' : '-',
- (attributes & 16) ? 'a' : '-',
- (attributes & 1) ? 'r' : '-',
- (attributes & 2) ? 'w' : '-',
- (attributes & 8) ? 'e' : '-',
- (attributes & 4) ? 'd' : '-');
- //SZ
- //printf("\"%s\"\n", header_filename);
- printf("%s\n", header_filename);
- //SZ
- //if(header_comment[0]) printf(": \"%s\"\n", header_comment);
- if ((archive_header[12] & 1) && pack_size)
- {
- //SZ
- //printf("%8ld %8ld Merged\n", merge_size, pack_size);
- }
- if (pack_size)
- {
- merge_size = 0;
- if (!fseek(in_file, pack_size, SEEK_CUR))
- {
- abort = 0;
- just_wait();
- }
- #ifdef UNLZX_DEBUG
- else
- {
- perror("FSeek()");
- }
- #endif
- }
- else
- {
- abort = 0;
- }
- }
- #ifdef UNLZX_DEBUG
- else
- {
- fprintf(stderr, "CRC: Archive_Header\n");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- fprintf(stderr, "EOF: Header_Comment\n");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- perror("FRead(Header_Comment)");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- fprintf(stderr, "EOF: Header_Filename\n");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- perror("FRead(Header_Filename)");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- fprintf(stderr, "EOF: Archive_Header\n");
- }
- #endif
- }
- else
- {
- //SZ
- //printf("-------- -------- -------- ----------- -------- ----\n");
- printf("END ---- -------- -------- ----------- -------- ----\n");
- printf("%8ld %8ld ", total_unpack, total_pack);
- printf("%ld file%s\n", total_files, ((total_files == 1) ? "" : "s"));
- result = 0;
- }
- }
- #ifdef UNLZX_DEBUG
- else
- {
- perror("FRead(Archive_Header)");
- }
- #endif
- } while(!abort);
- return(result);
- }
-
- signed long process_archive(unsigned char * filename)
- {
- signed long result = 1, actual;
- FILE *in_file;
-
- if (in_file = fopen(filename,"rb"))
- {
- actual = fread(info_header, 1, 10, in_file);
- if (!ferror(in_file))
- {
- if (actual == 10)
- {
- if ((info_header[0] == 76) && (info_header[1] == 90) && (info_header[2] == 88))
- {
- switch (mode)
- {
- case 1:
- result = extract_archive(in_file);
- break;
- case 2:
- result = view_archive(in_file);
- break;
- }
- }
- #ifdef UNLZX_DEBUG
- else
- {
- fprintf(stderr, "Info_Header: Bad ID\n");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- fprintf(stderr, "EOF: Info_Header\n");
- }
- #endif
- }
- #ifdef UNLZX_DEBUG
- else
- {
- perror("FRead(Info_Header)");
- }
- #endif
- fclose(in_file);
- }
- #ifdef UNLZX_DEBUG
- else
- {
- perror("FOpen(Archive)");
- }
- #endif
- return(result);
- }
-
- int main(int argc, char **argv)
- {
- int result = 0;
- unsigned long option;
- unsigned char tmp;
-
- if (option = argopt("-p", (unsigned long)argc, (unsigned char **)argv))
- {
- if (++option < argc)
- {
-
- strcpy(match_pattern, argv[option]);
- //SZ begin
- {
- char *p;
- for(p=match_pattern;*p;p++)
- if(*p == '\\') *p = '/';
- }
- //SZ ende
- }
- }
- if (option = argopt("-o", (unsigned long)argc, (unsigned char **)argv))
- {
- if (++option < argc)
- {
- strcpy(output_dir, argv[option]);
- use_outdir = 1;
-
- tmp = strlen(output_dir) - 1;
- #ifdef AMIGA
- if ((output_dir[tmp] != '/') && (output_dir[tmp] != ':'))
- {
- output_dir[tmp+1] = '/';
- #else
- if (output_dir[tmp] != '\\')
- {
- output_dir[tmp+1] = '\\';
- #endif
- output_dir[tmp+2] = '\0';
- }
- }
- }
-
- if (option = argopt("-v", (unsigned long)argc, (unsigned char **)argv))
- {
- mode = 2;
- }
- else if (option = argopt("-x", (unsigned long)argc, (unsigned char **)argv))
- {
- mode = 1;
- }
- else
- {
- result = 1;
- }
- if ((!result) && (++option < argc))
- {
- result = process_archive(argv[option]);
- }
- else
- {
- printf( "Usage: %s <options>\n", argv[0] );
- printf( "\t-v <archive> : list archive\n"
- "\t-x <archive> : extract archive\n"
- "\t-p <pattern> : only matching files\n"
- "\t-o <outpath> : destination path\n" );
- result = 2;
- }
- return(result);
- }
-
-