151 lines
4.0 KiB
C
151 lines
4.0 KiB
C
/*-
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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char copyright[] =
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"@(#) Copyright (c) 1983, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)uuencode.c 8.2 (Berkeley) 4/2/94";
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#endif /* not lint */
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/*
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* uuencode [input] output
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*
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* Encode a file so it can be mailed to a remote system.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdio.h>
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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extern int optind;
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extern int errno;
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struct stat sb;
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int mode;
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char *strerror();
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while (getopt(argc, argv, "") != EOF)
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usage();
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argv += optind;
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argc -= optind;
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switch(argc) {
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case 2: /* optional first argument is input file */
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if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb)) {
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(void)fprintf(stderr, "uuencode: %s: %s.\n",
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*argv, strerror(errno));
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exit(1);
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}
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#define RWX (S_IRWXU|S_IRWXG|S_IRWXO)
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mode = sb.st_mode & RWX;
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++argv;
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break;
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case 1:
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#define RW (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
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mode = RW & ~umask(RW);
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break;
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case 0:
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default:
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usage();
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}
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(void)printf("begin %o %s\n", mode, *argv);
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encode();
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(void)printf("end\n");
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if (ferror(stdout)) {
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(void)fprintf(stderr, "uuencode: write error.\n");
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exit(1);
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}
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exit(0);
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}
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/* ENC is the basic 1 character encoding function to make a char printing */
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#define ENC(c) ((c) ? ((c) & 077) + ' ': '`')
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/*
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* copy from in to out, encoding as you go along.
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*/
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encode()
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{
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register int ch, n;
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register char *p;
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char buf[80];
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while (n = fread(buf, 1, 45, stdin)) {
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ch = ENC(n);
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if (putchar(ch) == EOF)
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break;
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for (p = buf; n > 0; n -= 3, p += 3) {
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ch = *p >> 2;
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ch = ENC(ch);
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if (putchar(ch) == EOF)
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break;
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ch = (*p << 4) & 060 | (p[1] >> 4) & 017;
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ch = ENC(ch);
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if (putchar(ch) == EOF)
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break;
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ch = (p[1] << 2) & 074 | (p[2] >> 6) & 03;
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ch = ENC(ch);
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if (putchar(ch) == EOF)
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break;
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ch = p[2] & 077;
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ch = ENC(ch);
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if (putchar(ch) == EOF)
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break;
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}
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if (putchar('\n') == EOF)
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break;
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}
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if (ferror(stdin)) {
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(void)fprintf(stderr, "uuencode: read error.\n");
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exit(1);
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}
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ch = ENC('\0');
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(void)putchar(ch);
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(void)putchar('\n');
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}
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usage()
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{
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(void)fprintf(stderr,"usage: uuencode [infile] remotefile\n");
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exit(1);
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}
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