home *** CD-ROM | disk | FTP | other *** search
- /* #ifndef lint
- static char sccsid[] = "@(#)uuencode.c 5.3-1 (Berkeley) 9/1/87";
- #endif */
-
- /* Written by Mark Horton */
- /* Modified by ajr (Alan J Rosenthatl,flaps@utcsri.UUCP) to use checksums */
- /* Modified by fnf (Fred Fish,well!fnf) to use Keith Pyle's suggestion for
- compatibility */
- /* Modified by bcn (Bryce Nesbitt,ucbvax!cogsci!bryce) to enable CTRL-C for
- Amiga Lattice C and add a transparant file size trailer for later check. */
-
- /*
- * uuencode >outfile [infile] name
- *
- * Encode a file so it can be mailed to a remote system. This version
- * transparantly adds line checksums and a file size for sanity checks.
- *
- */
-
- #include <stdio.h>
-
- #ifdef AMIGA /* Amiga Lattice C */
- #define AMIGA_LATTICE
- #define MCH_AMIGA
- #define MPU68000
- #endif
-
- #ifdef unix
- #include <sys/types.h>
- #include <sys/stat.h>
- #endif
-
- #define SUMSIZE 64 /* 6 bits */
- /* ENC is the basic 1 character encode function to make a char printing */
- /* Each output character represents 6 bits of input */
- #define ENC(c) ((c) ? ((c) & 077) + ' ': '`')
- long totalsize=0; /* Used to count the file size because ftell() does
- not return sane results for pipes */
-
- main(argc, argv)
- char **argv;
- {
- FILE *in;
- int mode;
- #ifdef unix
- struct stat sbuf;
- #endif
- #ifdef AMIGA_LATTICE
- extern int Enable_Abort; /* Enable CTRL-C for Lattice */
- Enable_Abort=1;
- #endif
-
- /* optional 1st argument */
- if (argc > 2) {
- if ((in = fopen(argv[1], "r")) == NULL) {
- fprintf(stderr, "ERROR: can't find %s\n", argv[1]);
- fprintf(stderr, "USAGE: uuencode >outfile [infile] name\n");
- exit(10);
- }
- argv++; argc--;
- } else
- in = stdin;
-
- if (argc != 2) {
- fprintf(stderr, "USAGE: uuencode >outfile [infile] name\n");
- exit(11);
- }
-
- #ifdef unix
- /* figure out the input file mode */
- fstat(fileno(in), &sbuf);
- mode = sbuf.st_mode & 0777;
- #else
- mode = 0644; /* Default permissions */
- #endif
-
- printf("\nbegin %o %s\n", mode, argv[1]);
-
- encode(in, stdout);
-
- printf("end\n");
- printf("size %ld\n",totalsize);
- exit(0);
- }
-
- /*
- * copy from in to out, encoding as you go along.
- */
- encode(in, out)
- FILE *in;
- FILE *out;
- {
- #ifndef unix
- extern errno;
- #endif
- 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);
-
- #ifndef unix
- /* Error checking under UNIX?? You must be kidding! */
- if (errno) {
- fprintf(stderr, "ERROR: error writing to output\n");
- exit(12);
- }
- #endif
- 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);
- totalsize++;
- buf[i] = c;
- }
- return (cnt);
- }
-