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HEXBIN
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mu.c
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C/C++ Source or Header
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1996-02-01
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5KB
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226 lines
#include "hexbin.h"
#ifdef MU
#include "globals.h"
#include "readline.h"
#include "../util/masks.h"
#include "../util/util.h"
#include "../fileio/machdr.h"
#include "../fileio/wrfile.h"
#include "buffer.h"
#include "printhdr.h"
extern void exit();
static void do_mu_fork();
static int mu_comp_to_bin();
static int mu_convert();
/* mu format -- process .mu files */
void mu(macname)
char *macname;
{
int n;
for(n = 0; n < INFOBYTES; n++) {
info[n] = 0;
}
/* set up name for output files */
if(macname[0] == '\0') {
n = 0;
while(line[n] != '"') {
n++;
}
macname = line + n + 1;
line[strlen(line) - 1] = 0;
}
n = strlen(macname);
if(n > F_NAMELEN) {
n = F_NAMELEN;
}
(void)strncpy(mh.m_name, macname, n);
mh.m_name[n] = '\0';
info[I_NAMEOFF] = n;
(void)strncpy(info + I_NAMEOFF + 1, mh.m_name, n);
if(listmode) {
(void)fprintf(stderr, "This file is in \"mu\" format.\n");
}
transname(mh.m_name, trname, n);
define_name(trname);
print_header0(0);
set_put(0);
set_put(1);
do_mu_fork();
mh.m_datalen = data_size;
if(!readline()) {
(void)fprintf(stderr, "Premature EOF\n");
#ifdef SCAN
do_error("hexbin: Premature EOF");
#endif /* SCAN */
exit(1);
}
if(strncmp(line, "begin ", 6)) {
(void)fprintf(stderr, "No UU header found.\n");
#ifdef SCAN
do_error("hexbin: No UU header found");
#endif /* SCAN */
exit(1);
}
if(!strncmp(line + 10, " .rsrc", 6)) {
set_put(0);
do_mu_fork();
mh.m_rsrclen = rsrc_size;
if(!readline()) {
(void)fprintf(stderr, "Premature EOF\n");
#ifdef SCAN
do_error("hexbin: Premature EOF");
#endif /* SCAN */
exit(1);
}
if(strncmp(line, "begin ", 6)) {
(void)fprintf(stderr, "No UU header found.\n");
#ifdef SCAN
do_error("hexbin: No UU header found");
#endif /* SCAN */
exit(1);
}
} else {
mh.m_rsrclen = 0;
}
if(strncmp(line + 10, " .finfo", 7)) {
(void)fprintf(stderr, "No finder info found.\n");
#ifdef SCAN
do_error("hexbin: No finder info found");
#endif /* SCAN */
exit(1);
}
if(!readline()) {
(void)fprintf(stderr, "Premature EOF\n");
#ifdef SCAN
do_error("hexbin: Premature EOF");
#endif /* SCAN */
exit(1);
}
(void)mu_convert(line, info + I_TYPEOFF);
if(!readline()) {
(void)fprintf(stderr, "Premature EOF\n");
#ifdef SCAN
do_error("hexbin: Premature EOF");
#endif /* SCAN */
exit(1);
}
if(mu_convert(line, line)) {
(void)fprintf(stderr, "Long finderinfo.\n");
#ifdef SCAN
do_error("hexbin: Long finderinfo");
#endif /* SCAN */
exit(1);
}
if(!readline()) {
(void)fprintf(stderr, "Premature EOF\n");
#ifdef SCAN
do_error("hexbin: Premature EOF");
#endif /* SCAN */
exit(1);
}
if(strncmp(line, "end", 3)) {
(void)fprintf(stderr, "\"end\" line missing.\n");
#ifdef SCAN
do_error("hexbin: \"end\" line missing");
#endif /* SCAN */
exit(1);
}
(void)strncpy(mh.m_type, info + I_TYPEOFF, 4);
(void)strncpy(mh.m_author, info + I_AUTHOFF, 4);
print_header1(0, 0);
put4(info + I_DLENOFF, (unsigned long)mh.m_datalen);
put4(info + I_RLENOFF, (unsigned long)mh.m_rsrclen);
put4(info + I_CTIMOFF, (unsigned long)mh.m_createtime);
put4(info + I_MTIMOFF, (unsigned long)mh.m_modifytime);
print_header2(0);
end_put();
}
static void do_mu_fork()
{
long newbytes;
while(readline()) {
if(line[0] == 0) {
continue;
}
newbytes = mu_comp_to_bin();
if(newbytes != 0) {
continue;
}
if(!readline()) {
(void)fprintf(stderr, "Premature EOF\n");
#ifdef SCAN
do_error("hexbin: Premature EOF");
#endif /* SCAN */
exit(1);
}
if(strncmp(line, "end", 3)) {
(void)fprintf(stderr, "\"end\" line missing.\n");
#ifdef SCAN
do_error("hexbin: \"end\" line missing");
#endif /* SCAN */
exit(1);
}
return;
}
(void)fprintf(stderr, "Premature EOF\n");
#ifdef SCAN
do_error("hexbin: Premature EOF");
#endif /* SCAN */
exit(1);
/*NOTREACHED*/
}
static int mu_comp_to_bin()
{
char obuf[BUFSIZ];
int outcount, n;
outcount = mu_convert(line, obuf);
for(n = 0; n < outcount; n++) {
put_byte(obuf[n]);
}
return outcount;
}
#define SIXB(c) (((c)-0x20) & 0x3f)
static int mu_convert(ibuf, obuf)
char *ibuf, *obuf;
{
register char *ip = ibuf;
register char *op = obuf;
register int n, outcount;
int numread, incount;
numread = strlen(ip);
outcount = SIXB(ip[0]);
incount = ((outcount / 3) + 1) * 4;
for(n = numread; n < incount; n++) { /* restore lost spaces */
ip[n] = ' ';
}
ip++;
n = 0;
while(n <= outcount) {
*op++ = SIXB(ip[0]) << 2 | SIXB(ip[1]) >> 4;
*op++ = SIXB(ip[1]) << 4 | SIXB(ip[2]) >> 2;
*op++ = SIXB(ip[2]) << 6 | SIXB(ip[3]);
ip += 4;
n += 3;
}
return outcount;
}
#else /* MU */
int mu; /* keep lint and some compilers happy */
#endif /* MU */