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macbinary.c

#include "macunpack.h"
#include "globals.h"
#include "../fileio/machdr.h"
#include "../fileio/wrfile.h"
#include "../fileio/kind.h"
#include "zmahdr.h"
#include "../util/util.h"

extern void dir();
extern void mcb();
#ifdef BIN
extern void bin();
#endif /* BIN */
#ifdef JDW
extern void jdw();
#endif /* JDW */
#ifdef STF
extern void stf();
#endif /* STF */
#ifdef LZC
extern void lzc();
#endif /* LZC */
#ifdef ASQ
extern void asq();
#endif /* ASQ */
#ifdef ARC
extern void arc();
#endif /* ARC */
#ifdef PIT
extern void pit();
#endif /* PIT */
#ifdef SIT
extern void sit();
#endif /* SIT */
#ifdef DIA
extern void dia();
#endif /* DIA */
#ifdef CPT
extern void cpt();
#endif /* CPT */
#ifdef ZMA
extern void zma();
#endif /* ZMA */
#ifdef LZH
extern void lzh();
#endif /* LZH */
#ifdef DD
extern void dd_file();
extern void dd_arch();
#endif /* DD */

static void skip_file();
#ifdef SCAN
static void get_idf();
#endif /* SCAN */

#define Z   (ZMAHDRS2 + 1)

static int info_given;

void macbinary()
{
    char header[INFOBYTES];
    int c;

    while(1) {
      if((c = fgetc(infp)) == EOF) {
          break;
      }
      (void)ungetc(c, infp);
      if(fread(header, 1, Z, infp) != Z) {
          (void)fprintf(stderr, "Can't read MacBinary header.\n");
#ifdef SCAN
          do_error("macunpack: Can't read MacBinary header");
#endif /* SCAN */
          exit(1);
      }
#ifdef ZMA
      if(!strncmp(header + 1, ZMAHDR, ZMAHDRS2)) {
          /* Can distinguish zoom data forks only this way from macbinary */
          if(verbose) {
            (void)fprintf(stderr, "This is a \"Zoom\" archive.\n");
          }
          zma(header, (unsigned long)0);
          exit(0);
      }
#endif /* ZMA */
      if(fread(header + Z, 1, INFOBYTES - Z, infp) != INFOBYTES - Z) {
          (void)fprintf(stderr, "Can't read MacBinary header.\n");
#ifdef SCAN
          do_error("macunpack: Can't read MacBinary header");
#endif /* SCAN */
          exit(1);
      }
      if(verbose && !info_given) {
          do_indent(indent);
          (void)fprintf(stderr, "This is \"MacBinary\" input.\n");
          info_given = 1;
      }
      if(header[I_NAMEOFF] & 0x80) {
          dir(header);
          continue;
      }
      in_data_size = get4(header + I_DLENOFF);
      in_rsrc_size = get4(header + I_RLENOFF);
      in_ds = (((in_data_size + 127) >> 7) << 7);
      in_rs = (((in_rsrc_size + 127) >> 7) << 7);
      ds_skip = in_ds - in_data_size;
      rs_skip = in_rs - in_rsrc_size;
      if(dir_skip != 0) {
          skip_file(in_ds + in_rs);
          continue;
      }
#ifdef SCAN
      if(header[I_NAMEOFF] == 0) {
          get_idf((int)header[I_NAMEOFF + 1]);
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* SCAN */
      header[I_NAMEOFF + 1 + header[I_NAMEOFF]] = 0;
#ifdef BIN
      if(!strncmp(header + I_TYPEOFF, "TEXT", 4) &&
         !strncmp(header + I_AUTHOFF, "BnHq", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"BinHex 5.0\" packed file.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, PACK_NAME);
#endif /* SCAN */
          bin(header, in_data_size, 0);
          skip_file(ds_skip + in_rs);
          continue;
      }
      if(!strncmp(header + I_TYPEOFF, "TEXT", 4) &&
         !strncmp(header + I_AUTHOFF, "GJBU", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"MacBinary 1.0\" packed file.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, PACK_NAME);
#endif /* SCAN */
          bin(header, in_data_size, 0);
          skip_file(ds_skip + in_rs);
          continue;
      }
      /* Recognize only if creator is UMcp.  UMCP uses ttxt as default. */
      if(!strncmp(header + I_TYPEOFF, "TEXT", 4) &&
         !strncmp(header + I_AUTHOFF, "UMcp", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr, "This is a \"UMCP\" packed file.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, PACK_NAME);
#endif /* SCAN */
          bin(header, in_data_size, 1);
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* BIN */
#ifdef JDW
      if(!strncmp(header + I_TYPEOFF, "Smal", 4) &&
         !strncmp(header + I_AUTHOFF, "Jdw ", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"Compress It\" compressed file.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, PACK_NAME);
#endif /* SCAN */
          jdw((unsigned long)in_data_size);
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* JDW */
#ifdef STF
      if(!strncmp(header + I_TYPEOFF, "COMP", 4) &&
         !strncmp(header + I_AUTHOFF, "STF ", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"ShrinkToFit\" compressed file.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, PACK_NAME);
#endif /* SCAN */
          stf((unsigned long)in_data_size);
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* STF */
#ifdef LZC
      if(!strncmp(header + I_TYPEOFF, "ZIVM", 4) &&
         !strncmp(header + I_AUTHOFF, "LZIV", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"MacCompress(M)\" compressed file.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, PACK_NAME);
#endif /* SCAN */
          lzc(header);
          skip_file(ds_skip + in_rs);
          continue;
      }
      if(!strncmp(header + I_TYPEOFF, "ZIVU", 4) &&
         !strncmp(header + I_AUTHOFF, "LZIV", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"MacCompress(U)\" compressed file.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, PACK_NAME);
#endif /* SCAN */
          lzc(header);
          continue;
      }
#endif /* LZC */
#ifdef ASQ
      if(!strncmp(header + I_TYPEOFF, "ArCv", 4) &&
         !strncmp(header + I_AUTHOFF, "TrAS", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"AutoSqueeze\" compressed file.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, PACK_NAME);
#endif /* SCAN */
          lzh(0);
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* ASQ */
#ifdef ARC
      if(!strncmp(header + I_TYPEOFF, "mArc", 4) &&
         !strncmp(header + I_AUTHOFF, "arc*", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr, "This is a \"ArcMac\" archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          arc();
          skip_file(ds_skip + in_rs);
          continue;
      }
      if(!strncmp(header + I_TYPEOFF, "APPL", 4) &&
         !strncmp(header + I_AUTHOFF, "arc@", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"ArcMac\" self extracting archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          arc();
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* ARC */
#ifdef PIT
      if(!strncmp(header + I_TYPEOFF, "PIT ", 4) &&
         !strncmp(header + I_AUTHOFF, "PIT ", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr, "This is a \"PackIt\" archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          pit();
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* PIT */
#ifdef SIT
      if(!strncmp(header + I_TYPEOFF, "SIT!", 4) &&
         !strncmp(header + I_AUTHOFF, "SIT!", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr, "This is a \"StuffIt\" archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          sit();
          skip_file(ds_skip + in_rs);
          continue;
      }
      if(!strncmp(header + I_TYPEOFF, "SITD", 4) &&
         !strncmp(header + I_AUTHOFF, "SIT!", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"StuffIt Deluxe\" archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          sit();
          skip_file(ds_skip + in_rs);
          continue;
      }
      if(!strncmp(header + I_TYPEOFF, "APPL", 4) &&
         !strncmp(header + I_AUTHOFF, "aust", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"StuffIt\" self extracting archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          sit();
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* SIT */
#ifdef DIA
      if(!strncmp(header + I_TYPEOFF, "Pack", 4) &&
         !strncmp(header + I_AUTHOFF, "Pack", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr, "This is a \"Diamond\" archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          dia((unsigned char *)header);
          skip_file(ds_skip + in_rs);
          continue;
      }
      if(!strncmp(header + I_TYPEOFF, "APPL", 4) &&
         !strncmp(header + I_AUTHOFF, "Pack", 4) &&
         in_data_size != 0) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"Diamond\" self extracting archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          dia((unsigned char *)header);
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* DIA */
#ifdef CPT
      if(!strncmp(header + I_TYPEOFF, "PACT", 4) &&
         !strncmp(header + I_AUTHOFF, "CPCT", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr, "This is a \"Compactor\" archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          cpt();
          skip_file(ds_skip + in_rs);
          continue;
      }
      if(!strncmp(header + I_TYPEOFF, "APPL", 4) &&
         !strncmp(header + I_AUTHOFF, "EXTR", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"Compactor\" self extracting archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          cpt();
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* CPT */
#ifdef ZMA
      if(!strncmp(header + I_TYPEOFF, "zooM", 4) &&
         !strncmp(header + I_AUTHOFF, "zooM", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr, "This is a \"Zoom\" archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          zma((char *)NULL, (unsigned long)in_data_size);
          skip_file(ds_skip + in_rs);
          continue;
      }
      if(!strncmp(header + I_TYPEOFF, "APPL", 4) &&
         !strncmp(header + I_AUTHOFF, "Mooz", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"Zoom\" self extracting archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          zma((char *)NULL, (unsigned long)in_data_size);
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* ZMA */
#ifdef LZH
      if(!strncmp(header + I_TYPEOFF, "LARC", 4) &&
         !strncmp(header + I_AUTHOFF, "LARC", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"MacLHa (LHARC)\" archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          lzh(0);
          skip_file(ds_skip + in_rs);
          continue;
      }
      if(!strncmp(header + I_TYPEOFF, "LHA ", 4) &&
         !strncmp(header + I_AUTHOFF, "LARC", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"MacLHa (LHA)\" archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          lzh(1);
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* LZH */
#ifdef DD
      if((!strncmp(header + I_TYPEOFF, "DD01", 4) ||
          !strncmp(header + I_TYPEOFF, "DDF?", 3) ||
          !strncmp(header + I_TYPEOFF, "DDf?", 3)) &&
         !strncmp(header + I_AUTHOFF, "DDAP", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr,
                  "This is a \"DiskDoubler\" compressed file.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, PACK_NAME);
#endif /* SCAN */
          dd_file((unsigned char *)header);
          skip_file(ds_skip + in_rs);
          continue;
      }
      if(!strncmp(header + I_TYPEOFF, "DDAR", 4) &&
         !strncmp(header + I_AUTHOFF, "DDAP", 4)) {
          if(verbose) {
            do_indent(indent);
            (void)fprintf(stderr, "This is a \"DiskDoubler\" archive.\n");
          }
#ifdef SCAN
          do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
          dd_arch((unsigned char *)header);
          skip_file(ds_skip + in_rs);
          continue;
      }
      if(!strncmp(header + I_TYPEOFF, "APPL", 4) &&
         !strncmp(header + I_AUTHOFF, "DSEA", 4)) {
          if(verbose) {
            do_indent(indent);
          }
          c = getc(infp);
          (void)ungetc(c, infp);
          if(c == 'D') {
            if(verbose) {
                (void)fprintf(stderr,
                  "This is a \"DiskDoubler\" self extracting archive.\n");
#ifdef SCAN
                do_idf(header + I_NAMEOFF + 1, ARCH_NAME);
#endif /* SCAN */
            }
            dd_arch((unsigned char *)header);
          } else {
            if(verbose) {
                (void)fprintf(stderr,
                  "This is a \"DiskDoubler\" self decompressing file.\n");
#ifdef SCAN
                do_idf(header + I_NAMEOFF + 1, PACK_NAME);
#endif /* SCAN */
            }
            dd_file((unsigned char *)header);
          }
          skip_file(ds_skip + in_rs);
          continue;
      }
#endif /* DD */
      if(header[0] == 0 /* MORE CHECKS HERE! */) {
          mcb(header, (unsigned long)in_rsrc_size,
                  (unsigned long)in_data_size, in_ds + in_rs);
          continue;
      } else {
          (void)fprintf(stderr, "Unrecognized archive type.\n");
          exit(1);
      }
    }
}

static void skip_file(skip)
int skip;
{
    char buff[1024];
    int n;

    while(skip > 0) {
      n = (skip < 1024 ? skip : 1024);
      if(fread(buff, 1, n, infp) != n) {
          (void)fprintf(stderr, "Incomplete file.\n");
#ifdef SCAN
          do_error("macunpack: Incomplete file");
#endif /* SCAN */
          exit(1);
      }
      skip -= n;
    }
}

#ifdef SCAN
static void get_idf(kind)
int kind;
{
    char filename[255];

    if(fread(filename, 1, in_data_size, infp) != in_data_size) {
      (void)fprintf(stderr, "Incomplete file.\n");
#ifdef SCAN
          do_error("macunpack: Incomplete file");
#endif /* SCAN */
      exit(1);
    }
    filename[in_data_size] = 0;
    do_idf(filename, kind);
}
#endif /* SCAN */


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