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-
- #ifndef lint
- static char sccsid[] = "@(#)xxencode.c 5.3 (Berkeley) 1/22/85";
- #endif
-
- /*
- * xxencode [input] output
- *
- * Encode a file so it can be mailed to a remote system.
- *
- * note: with some MSDOS compilers a #define MSDOS is necessary
- */
- #include <stdio.h>
- #ifdef MSDOS
- #include <fcntl.h>
- #include <io.h>
- #endif /* MSDOS */
-
- #ifndef VMCMS
- #include <sys/types.h>
- #include <sys/stat.h>
- #else /* VMCMS */
- #include <types.h>
- #include <stat.h>
- #define perror(string) fprintf (stderr, "%s\n", string)
- #endif /* VMCMS */
-
- /* ENC is the basic 1 character encoding function to make a char printing */
- #define ENC(c) ( set[ (c) & 077 ] )
- static char set[] = "+-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-
- main (argc, argv)
- int argc;
- char * argv [];
-
- {
- FILE *in;
- struct stat sbuf;
- int mode;
- char buffer [256];
- int i;
-
- /* optional 1st argument */
- if (argc > 2)
- {
- strcpy (buffer, argv [1]);
- #ifdef VMCMS
- for (i = 2; i < argc - 1; i++)
- {
- strcat (buffer, " ");
- strcat (buffer, argv [i]);
- }
- strcat (buffer, " (bin");
- #endif /* VMCMS */
- if ((in = fopen (buffer, "r")) == NULL)
- {
- perror (buffer);
- exit(1);
- }
- }
- else
- in = stdin;
- #ifdef MSDOS
- if (setmode (fileno (in), O_BINARY) == -1)
- {
- perror ("Cannot open input file as binary\n");
- exit (3);
- }
- #endif /* MSDOS */
-
- #ifndef VMCMS
- if (isatty (fileno (in)) || argc < 2 || argc > 3)
- {
- fprintf (stderr, "Usage: xxencode [infile] remotefile\n");
- exit(2);
- }
- #else
- if (isatty (fileno (in)) || argc < 2)
- {
- fprintf (stderr, "Usage: xxencode fn ft fm (options remotefile ");
- fprintf (stderr, "> fn ft fm\n");
- fprintf (stderr, " or: xxencode remotefile < fn ft fm (options ");
- fprintf (stderr, "> fn ft fm\n");
- fprintf (stderr, "remotefile is a Unix syntax filename.\n");
- exit(2);
- }
- #endif /* VMCMS */
-
- /* figure out the input file mode */
- fstat (fileno (in), &sbuf);
- mode = sbuf.st_mode & 0777;
- printf ("begin %o %s\n", mode, argv [argc - 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;
-
- for (;;) {
- /* 1 (up to) 45 character line */
- 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);
- }
-
- /*
- **
- **
- **--
- **Fridrik Skulason University of Iceland | Support Eastern Europe..
- **Technical Editor Virus Bulletin (UK). |
- **E-Mail: frisk@rhi.hi.is Fax: 354-1-28801 | ..buy Prince Polo !
- **
- **
- */
-
-