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- #ifndef lint
- static char sccsid[] = "@(#)uuencode.c 5.3-1 (Berkeley) 1/22/85";
- #endif
- /* modified by ajr to include checksums */
-
- /*
- * uuencode [input] output
- *
- * Encode a file so it can be mailed to a remote system.
- */
- #include <stdio.h>
-
- #ifdef unix
- #include <sys/types.h>
- #include <sys/stat.h>
- #endif
-
- #define SUMSIZE 64
-
- /* ENC is the basic 1 character encoding function to make a char printing */
- #define ENC(c) ((c) ? ((c) & 077) + ' ': '`')
-
- main(argc, argv)
- char **argv;
- {
- FILE *in;
- #ifdef unix
- struct stat sbuf;
- #endif
- int mode;
-
- /* optional 1st argument */
- if (argc > 2) {
- if ((in = fopen(argv[1], "r")) == NULL) {
- perror(argv[1]);
- exit(1);
- }
- argv++; argc--;
- } else
- in = stdin;
-
- if (argc != 2) {
- printf("Usage: uuencode [infile] remotefile\n");
- exit(2);
- }
-
- #ifdef unix
- /* figure out the input file mode */
- fstat(fileno(in), &sbuf);
- mode = sbuf.st_mode & 0777;
- #else
- mode = 0777;
- #endif
- printf("begin %o %s\n", mode, argv[1]);
-
- encode(in, stdout);
-
- printf("end\n");
- exit(0);
- }
-
- /*
- * copy from in to out, encoding as you go along.
- */
- encode(in, out)
- FILE *in;
- FILE *out;
- {
- char buf[80];
- int i, n, checksum;
-
- for (;;) {
- /* 1 (up to) 45 character line */
- n = fr(in, buf, 45);
- putc(ENC(n), out);
-
- checksum = 0;
- for (i=0; i<n; i += 3)
- checksum = (checksum+outdec(&buf[i], out)) % SUMSIZE;
-
- putc(ENC(checksum), out);
- putc('\n', out);
- if (n <= 0)
- break;
- }
- }
-
- /*
- * output one group of 3 bytes, pointed at by p, on file f.
- * return the checksum increment.
- */
- int 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);
-
- return((p[0]+p[1]+p[2]) % SUMSIZE);
- }
-
- /* 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);
- }
-
- #if (!unix && MANX)
-
- perror (sp)
- char *sp;
- {
- if (sp && *sp) {
- fprintf (stderr, "%s: ");
- }
- fprintf (stderr, "<unknown error>\n");
- }
-
- #endif /* Unix */
-