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#include <string.h>
#include "macunpack.h"
#ifdef LZC
#include "globals.h"
#include "lzc.h"
#include "../util/util.h"
#include "../fileio/machdr.h"
#include "../fileio/wrfile.h"
#include "../util/masks.h"
extern void de_compress();
extern void core_compress();
extern void mcb();
static void lzc_zivm();
static void lzc_wrfile();
static void lzc_zivu();
void lzc(ohdr)
char *ohdr;
{
core_compress((char *)NULL);
if(!strncmp(ohdr + I_TYPEOFF, "ZIVM", 4)) {
lzc_zivm(ohdr);
} else {
lzc_zivu(ohdr);
}
}
static void lzc_zivm(ohdr)
char *ohdr;
{
char hdr[HEADERBYTES];
unsigned long dataLength, rsrcLength, dataCLength, rsrcCLength;
char ftype[5], fauth[5];
if(fread(hdr, 1, HEADERBYTES, infp) != HEADERBYTES) {
(void)fprintf(stderr, "Can't read file header\n");
#ifdef SCAN
do_error("macunpack: Can't read file header");
#endif /* SCAN */
exit(1);
}
if(strncmp(hdr, MAGIC1, 4)) {
(void)fprintf(stderr, "Magic header mismatch\n");
#ifdef SCAN
do_error("macunpack: Magic header mismatch");
#endif /* SCAN */
exit(1);
}
dataLength = get4(hdr + C_DLENOFF);
dataCLength = get4(hdr + C_DLENOFFC);
rsrcLength = get4(hdr + C_RLENOFF);
rsrcCLength = get4(hdr + C_RLENOFFC);
write_it = 1;
if(list) {
copy(info, ohdr, INFOBYTES);
copy(info + I_TYPEOFF, hdr + C_TYPEOFF, 4);
copy(info + I_AUTHOFF, hdr + C_AUTHOFF, 4);
copy(info + I_DLENOFF, hdr + C_DLENOFF, 4);
copy(info + I_RLENOFF, hdr + C_RLENOFF, 4);
copy(info + I_CTIMOFF, hdr + C_CTIMOFF, 4);
copy(info + I_MTIMOFF, hdr + C_MTIMOFF, 4);
copy(info + I_FLAGOFF, hdr + C_FLAGOFF, 8);
transname(ohdr + I_NAMEOFF + 1, text, (int)ohdr[I_NAMEOFF]);
transname(hdr + C_TYPEOFF, ftype, 4);
transname(hdr + C_AUTHOFF, fauth, 4);
do_indent(indent);
(void)fprintf(stderr,
"name=\"%s\", type=%4.4s, author=%4.4s, data=%ld, rsrc=%ld",
text, ftype, fauth, (long)dataLength, (long)rsrcLength);
if(info_only) {
write_it = 0;
}
if(query) {
write_it = do_query();
} else {
(void)fputc('\n', stderr);
}
}
if(write_it) {
define_name(text);
}
if(write_it) {
start_info(info, rsrcLength, dataLength);
}
if(verbose) {
(void)fprintf(stderr, "\tData: ");
}
if(write_it) {
start_data();
}
lzc_wrfile(dataLength, dataCLength);
if(verbose) {
(void)fprintf(stderr, ", Rsrc: ");
}
if(write_it) {
start_rsrc();
}
lzc_wrfile(rsrcLength, rsrcCLength);
if(write_it) {
end_file();
}
if(verbose) {
(void)fprintf(stderr, ".\n");
}
}
static void lzc_wrfile(obytes, ibytes)
unsigned long obytes, ibytes;
{
int n, nbits;
char subheader[3];
if(ibytes == 0) {
if(verbose) {
(void)fprintf(stderr, "empty");
}
return;
}
if(ibytes == obytes) {
if(verbose) {
(void)fprintf(stderr, "No compression");
}
if(write_it) {
n = fread(out_buffer, 1, (int)ibytes, infp);
if(n != ibytes) {
(void)fprintf(stderr, "Premature EOF\n");
#ifdef SCAN
do_error("macunpack: Premature EOF");
#endif /* SCAN */
exit(1);
}
} else {
n = ibytes;
while(n-- > 0) {
if(getc(infp) == EOF) {
(void)fprintf(stderr, "Premature EOF\n");
#ifdef SCAN
do_error("macunpack: Premature EOF");
#endif /* SCAN */
exit(1);
}
}
}
} else {
if(fread(subheader, 1, 3, infp) != 3) {
(void)fprintf(stderr, "Premature EOF\n");
#ifdef SCAN
do_error("macunpack: Premature EOF");
#endif /* SCAN */
exit(1);
}
if(strncmp(subheader, MAGIC2, 2)) {
(void)fprintf(stderr, "Magic subheader mismatch\n");
#ifdef SCAN
do_error("macunpack: Magic subheader mismatch");
#endif /* SCAN */
exit(1);
}
nbits = subheader[2] & 0x7f;
if(verbose) {
(void)fprintf(stderr, "LZC(%d) compressed (%4.1f%%)",
nbits, 100.0 * ibytes / obytes);
}
if(write_it) {
de_compress(ibytes - 3, nbits);
} else {
n = ibytes - 3;
while(n-- > 0) {
if(getc(infp) == EOF) {
(void)fprintf(stderr, "Premature EOF\n");
#ifdef SCAN
do_error("macunpack: Premature EOF");
#endif /* SCAN */
exit(1);
}
}
}
}
}
static void lzc_zivu(ohdr)
char *ohdr;
{
(void)fprintf(stderr,
"\tMacCompress(Unix) not yet implemented, copied as MacBinary\n");
mcb(ohdr, (unsigned long)in_rsrc_size, (unsigned long)in_data_size,
in_ds + in_rs);
}
#else /* LZC */
int lzc; /* keep lint and some compilers happy */
#endif /* LZC */
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