src/lha.h

   1 /* ------------------------------------------------------------------------ */
   2 /* LHa for UNIX    Archiver Driver                                                                                      */
   3 /*                                                                                                                                                      */
   4 /*              Modified                        Nobutaka Watazaki                                                       */
   5 /*                                                                                                                                                      */
   6 /*      Ver. 1.14       Soruce All chagned                              1995.01.14      N.Watazaki              */
   7 /* ------------------------------------------------------------------------ */
   8 /*
   9         Included...
  10                 lharc.h         interface.h             slidehuf.h
  11 */
  12 #include <stdio.h>
  13 #include <errno.h>
  14 #include <ctype.h>
  15 #include <sys/types.h>
  16 #include <sys/file.h>
  17 #include <sys/stat.h>
  18
  19 #include <signal.h>
  20
  21 #include "lha_macro.h"
  22
  23 struct encode_option {
  24 #if defined(__STDC__) || defined(AIX)
  25         void            (*output) ();
  26         void            (*encode_start) ();
  27         void            (*encode_end) ();
  28 #else
  29         int             (*output) ();
  30         int             (*encode_start) ();
  31         int             (*encode_end) ();
  32 #endif
  33 };
  34
  35 struct decode_option {
  36         unsigned short  (*decode_c) ();
  37         unsigned short  (*decode_p) ();
  38 #if defined(__STDC__) || defined(AIX)
  39         void            (*decode_start) ();
  40 #else
  41         int             (*decode_start) ();
  42 #endif
  43 };
  44
  45 /* ------------------------------------------------------------------------ */
  46 /*      LHa File Type Definition                                                                                                */
  47 /* ------------------------------------------------------------------------ */
  48 struct string_pool {
  49         int             used;
  50         int             size;
  51         int             n;
  52         char           *buffer;
  53 };
  54
  55 typedef struct LzHeader {
  56         unsigned char   header_size;
  57         char            method[METHOD_TYPE_STRAGE];
  58         long            packed_size;
  59         long            original_size;
  60         long            last_modified_stamp;
  61         unsigned char   attribute;
  62         unsigned char   header_level;
  63         char            name[256];
  64         unsigned short  crc;
  65         boolean         has_crc;
  66         unsigned char   extend_type;
  67         unsigned char   minor_version;
  68
  69         /* extend_type == EXTEND_UNIX  and convert from other type. */
  70         time_t          unix_last_modified_stamp;
  71         unsigned short  unix_mode;
  72         unsigned short  unix_uid;
  73         unsigned short  unix_gid;
  74 }  LzHeader;
  75
  76 struct interfacing {
  77         FILE                    *infile;
  78         FILE                    *outfile;
  79         unsigned long   original;
  80         unsigned long   packed;
  81         int             dicbit;
  82         int             method;
  83 };
  84
  85
  86 /* ------------------------------------------------------------------------ */
  87 /*      Option switch variable                                                                                                  */
  88 /* ------------------------------------------------------------------------ */
  89 /* command line options (common options) */
  90 EXTERN boolean  quiet;
  91 EXTERN boolean  text_mode;
  92 EXTERN boolean  verbose;
  93 EXTERN boolean  noexec;         /* debugging option */
  94 EXTERN boolean  force;
  95 EXTERN boolean  prof;
  96 EXTERN boolean  delete_after_append;
  97 EXTERN int              compress_method;
  98 EXTERN int              header_level;
  99 /* EXTERN int           quiet_mode; */   /* 1996.8.13 t.okamoto */
 100 #ifdef EUC
 101 EXTERN boolean  euc_mode;
 102 #endif
 103
 104 /* list command flags */
 105 EXTERN boolean  verbose_listing;
 106
 107 /* extract/print command flags */
 108 EXTERN boolean  output_to_stdout;
 109
 110 /* add/update/delete command flags */
 111 EXTERN boolean  new_archive;
 112 EXTERN boolean  update_if_newer;
 113 EXTERN boolean  generic_format;
 114
 115 EXTERN boolean  remove_temporary_at_error;
 116 EXTERN boolean  recover_archive_when_interrupt;
 117 EXTERN boolean  remove_extracting_file_when_interrupt;
 118 EXTERN boolean  get_filename_from_stdin;
 119 EXTERN boolean  ignore_directory;
 120 EXTERN boolean  verify_mode;
 121
 122 /* Indicator flag */
 123 EXTERN int              quiet_mode;
 124
 125 /* ------------------------------------------------------------------------ */
 126 /*      Globale Variable                                                                                                                */
 127 /* ------------------------------------------------------------------------ */
 128 EXTERN char             **cmd_filev;
 129 EXTERN int      cmd_filec;
 130
 131 EXTERN char             *archive_name;
 132 EXTERN char     expanded_archive_name[FILENAME_LENGTH];
 133 EXTERN char     temporary_name[FILENAME_LENGTH];
 134 EXTERN char     backup_archive_name[FILENAME_LENGTH];
 135
 136 EXTERN char             *reading_filename, *writting_filename;
 137
 138 /* 1996.8.13 t.okamoto */
 139 #if 0
 140 EXTERN boolean  remove_temporary_at_error;
 141 EXTERN boolean  recover_archive_when_interrupt;
 142 EXTERN boolean  remove_extracting_file_when_interrupt;
 143 #endif
 144
 145 EXTERN int      archive_file_mode;
 146 EXTERN int      archive_file_gid;
 147
 148 EXTERN struct   interfacing interface;
 149 EXTERN node             *next;
 150 /* EXTERN unsigned short crc; */  /* 1996.8.13 t.okamoto */
 151
 152 /* slide.c */
 153 EXTERN int      unpackable;
 154 EXTERN unsigned long origsize, compsize;
 155 EXTERN unsigned short dicbit;
 156 EXTERN unsigned short maxmatch;
 157 EXTERN unsigned long count;
 158 EXTERN unsigned long loc;                       /* short -> long .. Changed N.Watazaki */
 159 EXTERN unsigned char *text;
 160 EXTERN int              prev_char;
 161
 162 /* huf.c */
 163 #ifndef LHA_MAIN_SRC  /* t.okamoto 96/2/20 */
 164 EXTERN unsigned short left[], right[];
 165 EXTERN unsigned char c_len[], pt_len[];
 166 EXTERN unsigned short c_freq[], c_table[], c_code[];
 167 EXTERN unsigned short p_freq[], pt_table[], pt_code[], t_freq[];
 168 #endif
 169
 170 /* append.c */
 171 #ifdef NEED_INCREMENTAL_INDICATOR
 172 EXTERN long             indicator_count;
 173 EXTERN long             indicator_threshold;
 174 #endif
 175
 176 /* crcio.c */
 177 EXTERN FILE             *infile, *outfile;
 178 EXTERN unsigned short crc, bitbuf;
 179 EXTERN int      dispflg;
 180 EXTERN long             reading_size;
 181
 182 /* from dhuf.c */
 183 EXTERN unsigned int n_max;
 184
 185 /* lhadd.c */
 186 EXTERN FILE             *temporary_fp;
 187
 188 /* ------------------------------------------------------------------------ */
 189 /*      Functions                                                                                                                               */
 190 /* ------------------------------------------------------------------------ */
 191 /* from lharc.c */
 192 extern int              patmatch();
 193
 194 extern void             interrupt();
 195
 196 extern void             message();
 197 extern void             warning();
 198 extern void             error();
 199 extern void             fatal_error();
 200
 201 extern boolean  need_file();
 202 extern int              inquire();
 203 extern FILE             *xfopen();
 204
 205 extern boolean  find_files();
 206 extern void             free_files();
 207
 208 extern void             init_sp();
 209 extern void             add_sp();
 210 extern void             finish_sp();
 211 extern void             free_sp();
 212 extern void             cleaning_files();
 213
 214 extern void             build_temporary_name();
 215 extern void             build_backup_file_name();
 216 extern void             build_standard_archive_name();
 217
 218 extern FILE             *open_old_archive();
 219 extern void             init_header();
 220 extern boolean  get_header();
 221 extern boolean  archive_is_msdos_sfx1();
 222 extern boolean  skip_msdos_sfx1_code();
 223 extern void             write_header();
 224 extern void             write_archive_tail();
 225 extern void             copy_old_one();
 226 extern unsigned char *convdelim();
 227 extern long             copyfile();
 228
 229 extern void             cmd_list(), cmd_extract(), cmd_add(), cmd_delete();
 230
 231 extern boolean  ignore_directory;
 232 extern boolean  compress_method;
 233 extern boolean  verify_mode;
 234
 235 extern char             *extract_directory;
 236
 237 /* from slide.c */
 238
 239 extern int              encode_alloc();
 240 extern void             encode();
 241 extern void             decode();
 242
 243 /* from append.c */
 244 extern void     start_indicator();
 245 extern void     finish_indicator();
 246 extern void     finish_indicator2();
 247
 248 /* slide.c */
 249 extern void     output_st1();
 250 extern unsigned char *alloc_buf();
 251 extern void     encode_start_st1();
 252 extern void     encode_end_st1();
 253 extern unsigned short decode_c_st1();
 254 extern unsigned short decode_p_st1();
 255 extern void     decode_start_st1();
 256
 257 /* from shuf.c */
 258 extern void     decode_start_st0();
 259 extern void     encode_p_st0( /* unsigned short j */ );
 260 extern void     encode_start_fix();
 261 extern void     decode_start_fix();
 262 extern unsigned short decode_c_st0();
 263 extern unsigned short decode_p_st0();
 264
 265 /* from dhuf.c */
 266 extern void     start_c_dyn();
 267 extern void     decode_start_dyn();
 268 extern unsigned short decode_c_dyn();
 269 extern unsigned short decode_p_dyn();
 270 extern void     output_dyn( /* int code, unsigned int pos */ );
 271 extern void     encode_end_dyn();
 272
 273 extern int      decode_lzhuf();
 274
 275 /* from larc.c */
 276
 277 extern unsigned short decode_c_lzs();
 278 extern unsigned short decode_p_lzs();
 279 extern unsigned short decode_c_lz5();
 280 extern unsigned short decode_p_lz5();
 281 extern void                       decode_start_lzs();
 282 extern void                       decode_start_lz5();
 283
 284 extern void     make_table(     /* int nchar, uchar bitlen[], int tablebits,
 285                                                         ushort table[] */ );
 286
 287 /* from maketree.c */
 288 /*
 289  * void make_code(short n, uchar len[], ushort code[]); short make_tree(short
 290  * nparm, ushort freqparm[], uchar lenparm[], ushort codeparam[]);
 291  */
 292 extern void             make_code( /* int n, uchar len[], ushort code[] */ );
 293 extern short    make_tree( /* int nparm, ushort freqparm[], uchar lenparm[],
 294                                                                 ushort codeparam[] */ );
 295
 296 /* from crcio.c */
 297 extern void                             make_crctable();
 298 extern unsigned short   calccrc( /* uchar *p, uint n */ );
 299 extern void                             fillbuf( /* uchar n */ );
 300 extern unsigned short   getbits( /* uchar n */ );
 301 extern void                             putcode( /* uchar n, ushort x */ );
 302 extern void                             putbits( /* uchar n, ushort x */ );
 303 extern int                              fread_crc( /* uchar *p, int n, FILE *f */ );
 304 extern void                             fwrite_crc( /* uchar *p, int n, FILE *f */ );
 305 extern void                             init_getbits();
 306 extern void                             init_putbits();
 307 extern void                     make_crctable();
 308 extern unsigned                 short calccrc();
 309
 310 /* from lhadd.c */
 311 extern int              encode_lzhuf();
 312 extern int      encode_stored_crc();