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macutils.lzh
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MACUTILS
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MIXED
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macbinary.c
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C/C++ Source or Header
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1996-02-02
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3KB
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122 lines
#include "globals.h"
#include "../fileio/machdr.h"
#include "../fileio/kind.h"
#include "../util/util.h"
extern void dir();
extern void mcb();
extern void do_indent();
static void skip_file();
#ifdef SCAN
static void get_idf();
#endif /* SCAN */
void macbinary()
{
char header[INFOBYTES];
int c;
while(1) {
if((c = fgetc(infp)) == EOF) {
break;
}
(void)ungetc(c, infp);
if(fread(header, 1, INFOBYTES, infp) != INFOBYTES) {
(void)fprintf(stderr, "Can't read MacBinary header.\n");
exit(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 */
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 header.\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");
exit(1);
}
skip -= n;
}
}
#ifdef SCAN
static void get_idf(kind)
int kind;
{
char filename[1024], filename1[255];
if(fread(filename, 1, in_data_size, infp) != in_data_size) {
(void)fprintf(stderr, "Incomplete file.\n");
exit(1);
}
filename[in_data_size] = 0;
if(list) {
do_indent(indent);
switch(kind) {
case UNIX_NAME:
(void)fprintf(stderr, "Unix filename: \"%s\"\n", filename);
break;
case PACK_NAME:
transname(filename, filename1, in_data_size);
(void)fprintf(stderr, "Packed filename: \"%s\"\n", filename1);
break;
case ARCH_NAME:
transname(filename, filename1, in_data_size);
(void)fprintf(stderr, "Archive name: \"%s\"\n", filename1);
break;
case UNKNOWN:
(void)fprintf(stderr, "Unknown method detected\n");
break;
case ERROR:
(void)fprintf(stderr, "Error detected\n");
break;
case PROTECTED:
(void)fprintf(stderr, "Protected file detected\n");
break;
case COPY:
(void)fprintf(stderr, "Copied file found\n");
break;
default:
(void)fprintf(stderr, "Do not understand this identification\n");
exit(1);
}
}
}
#endif /* SCAN */