home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
rtsi.com
/
2014.01.www.rtsi.com.tar
/
www.rtsi.com
/
OS9
/
OSK
/
CMDS
/
uudecode.t.Z
/
uudecode.t
/
uue.c
< prev
Wrap
C/C++ Source or Header
|
1990-12-09
|
5KB
|
222 lines
/*
*
* Uue -- encode a file so that it's printable ascii, short lines
*
* Slightly modified from a version posted to net.sources a while back,
* and suitable for compilation on the IBM PC
*
* modified for Lattice C on the ST - 11.05.85 by MSD
* modified for ALCYON on the ST - 10-24-86 by RDR
* modified a little more for MWC... 02/09/87 by JPHD
* added OSK........................ 08/12/90 by MHB
* (An optional first argument of the form: -nnumber (e.g. -500), will
* produce a serie of files that long, linked by the include statement,
* such files are automatically uudecoded by the companion program.)
* More mods, - ... 05/06/87 by jphd
* Mods for TOPS 20, and more. 08/06/87 by jphd
* (remove freopen and rindex...change filename generation...)
* (A lot more to do about I/O speed, avoiding completely the stdio.h...)
*
*/
#include <stdio.h>
#include <ctype.h>
#define USAGE
/* ENC is the basic 1 character encoding function to make a char printing */
#define ENC(c) (((c) & 077) + ' ')
extern FILE *fopen();
FILE *fp, *outp;
char ofname[80];
int lenofname;
int stdo = 0;
#ifdef ST
#define READ "rb"
#else
#define READ "r"
#endif
int part = 'a', chap = 'a';
#define SEQMAX 'z'
#define SEQMIN 'a'
char seqc = SEQMAX;
int split = 0; fileln = 32000;
main(argc, argv)
int argc; char *argv[];
{
char *fname;
if (argc < 2) {
usage();
exit(0);
}
if (argv[1][0] == '-') {
fileln = -atoi(argv[1]);
if (fileln <= 0) {
fprintf(stderr, "Wrong file length arg.\n");
exit();
}
split = 1;
argv++;
argc--;
}
if ((fp=fopen(argv[1], READ))==NULL) { /* binary input !!! */
fprintf(stderr,"Cannot open %s\n",argv[1]);
exit(1);
}
strcpy(ofname, argv[1]);
fname = ofname;
do {
if (*fname == '.')
*fname = '\0';
} while (*fname++);
/* 8 char prefix + .uue -> 12 chars MAX */
lenofname = strlen(ofname);
if (lenofname > 8) ofname[8] = '\0';
strcat(ofname,".uue");
lenofname = strlen(ofname);
if (!split && (argc > 2) && (argv[2][0] == '-')) {
stdo = 1;
outp = stdout;
} else {
makename();
if((outp = fopen(ofname, "w")) == NULL) {
fprintf(stderr,"Cannot open %s\n", ofname);
exit(1);
}
}
maketable();
fprintf(outp,"begin %o %s\n", 0644, argv[1]);
encode();
fprintf(outp,"end\n");
fclose(outp);
exit(0);
}
/* create ASCII table so a mailer can screw it up and the decode
* program can restore the error.
*/
maketable()
{
register int i, j;
fputs("table\n", outp);
for(i = ' ', j = 0; i < '`' ; j++) {
if (j == 32)
putc('\n', outp);
putc(i++, outp);
}
putc('\n', outp);
}
/*
* Generate the names needed for single and multiple part encoding.
*/
makename()
{
if (split) {
ofname[lenofname - 1] = part;
ofname[lenofname - 2] = chap;
}
}
/*
* copy from in to out, encoding as you go along.
*/
encode()
{
char buf[80];
register int i, n;
register int lines;
lines = 6;
for (;;) {
n = fr(buf, 45);
putc(ENC(n), outp);
for (i = 0; i < n; i += 3)
outdec(&buf[i]);
putc(seqc, outp);
seqc--;
if (seqc < SEQMIN) seqc = SEQMAX;
putc('\n', outp);
++lines;
if (split && (lines > fileln)) {
part++;
if (part > 'z') {
part = 'a';
if (chap == 'z')
chap = 'a'; /* loop ... */
else
chap++;
}
makename();
fprintf(outp,"include %s\n",ofname);
fclose(outp);
if((outp = fopen(ofname, "w")) == NULL) {
fprintf(stderr,"Cannot open %s\n",ofname);
exit(1);
}
maketable();
fprintf(outp,"begin part %c %s\n",part,ofname);
lines = 6;
}
if (n <= 0)
break;
}
}
/*
* output one group of 3 bytes, pointed at by p, on file f.
*/
outdec(p)
register char *p;
{
register int c1, c2, c3, c4;
c1 = *p >> 2;
c2 = (*p << 4) & 060 | (p[1] >> 4) & 017;
c3 = (p[1] << 2) & 074 | (p[2] >> 6) & 03;
c4 = p[2] & 077;
putc(ENC(c1), outp);
putc(ENC(c2), outp);
putc(ENC(c3), outp);
putc(ENC(c4), outp);
}
/* fr: like read but stdio */
int fr(buf, cnt)
register char *buf;
register int cnt;
{
register int c, i;
for (i = 0; i < cnt; i++) {
c = fgetc(fp);
if (feof(fp))
return(i);
buf[i] = c;
}
return (cnt);
}
usage()
{
fprintf(stderr, "Almost foolproof uuencode v3.1 06 Aug 1987\n");
fprintf(stderr, "Usage: uue [-n] inputfile [-]\n");
fprintf(stderr,
"SHORT DESCRIPTION\n\
An optional first argument of the form: -number (e.g. -500),\n\
will produce a series of files that number of lines long, linked\n\
by the include statement. The default for 'number' is %d.\n\
Files produced like this are automatically uudecoded by the\n\
companion program UUD.\n\
If a '-' is given as the last argument, output is redirected\n\
to the standard output.\n", fileln);
}