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- /*
- *
- * Uuencode -- 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
- *
- */
-
-
- #include <stdio.h>
- #include <osbind.h>
-
- char *progname = "UUENCODE";
-
- #define USAGE "Usage: UUENCODE file [>outfile]\n"
-
- /* ENC is the basic 1 character encoding function to make a char printing */
- #define ENC(c) (((c) & 077) + ' ')
-
- FILE *in, *out, *efopen(), *fopen();
-
- main(argc, argv)
- int argc; char *argv[];
- {
-
- if (argc < 2) {
- fprintf(stderr, USAGE);
- exit(2);
- }
- in = efopen(argv[1], "rb"); /* binary input !!! */
- if (argc == 3) {
- out = efopen(argv[2], "w");
- }
- else out = stdout;
- fprintf(out, "begin %o %s\n", 0777, argv[1]);
- encode(in, out);
- fprintf(out, "end\n");
- }
-
- /*
- * copy from in to out, encoding as you go along.
- */
-
- encode(in, out)
- FILE *in, *out;
- {
- char buf[80];
- int i, n;
- for (;;) {
- n = fr(in, buf, 45);
- putc(ENC(n), out);
- for (i=0; i<n; i += 3)
- outdec(&buf[i], out);
- putc('\n', out);
- if (n <= 0)
- break;
- }
- }
-
- /*
- * output one group of 3 bytes, pointed at by p, on file f.
- */
-
- outdec(p, f)
- char *p; FILE *f;
- {
- 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), f);
- putc(ENC(c2), f);
- putc(ENC(c3), f);
- putc(ENC(c4), f);
- }
-
- /* fr: like read but stdio */
-
- int fr(fd, buf, cnt)
- FILE *fd; char *buf; int cnt;
- {
- int c, i;
- for (i = 0; i < cnt; i++) {
- c = getc(fd);
- if (c == EOF)
- return(i);
- buf[i] = c;
- }
- return (cnt);
- }
-
-
- FILE *
- efopen(fn, mode)
- char *fn, *mode;
- {
- FILE *unit;
- if ((unit = fopen(fn, mode)) == NULL)
- error("Cannot open file %s", fn);
- else
- return unit;
- }
-
- extern char *progname;
-
- error(s1, s2)
- char *s1, *s2;
- {
- fprintf(stderr, "%s: ", progname);
- fprintf(stderr, s1, s2);
- exit(1);
- }