uuencode.c revision 28564
11590Srgrimes/*- 21590Srgrimes * Copyright (c) 1983, 1993 31590Srgrimes * The Regents of the University of California. All rights reserved. 41590Srgrimes * 51590Srgrimes * Redistribution and use in source and binary forms, with or without 61590Srgrimes * modification, are permitted provided that the following conditions 71590Srgrimes * are met: 81590Srgrimes * 1. Redistributions of source code must retain the above copyright 91590Srgrimes * notice, this list of conditions and the following disclaimer. 101590Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111590Srgrimes * notice, this list of conditions and the following disclaimer in the 121590Srgrimes * documentation and/or other materials provided with the distribution. 131590Srgrimes * 3. All advertising materials mentioning features or use of this software 141590Srgrimes * must display the following acknowledgement: 151590Srgrimes * This product includes software developed by the University of 161590Srgrimes * California, Berkeley and its contributors. 171590Srgrimes * 4. Neither the name of the University nor the names of its contributors 181590Srgrimes * may be used to endorse or promote products derived from this software 191590Srgrimes * without specific prior written permission. 201590Srgrimes * 211590Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221590Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231590Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241590Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251590Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261590Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271590Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281590Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291590Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301590Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311590Srgrimes * SUCH DAMAGE. 321590Srgrimes */ 331590Srgrimes 341590Srgrimes#ifndef lint 3528564Scharnierstatic const char copyright[] = 361590Srgrimes"@(#) Copyright (c) 1983, 1993\n\ 371590Srgrimes The Regents of the University of California. All rights reserved.\n"; 381590Srgrimes#endif /* not lint */ 391590Srgrimes 401590Srgrimes#ifndef lint 4128564Scharnier#if 0 421590Srgrimesstatic char sccsid[] = "@(#)uuencode.c 8.2 (Berkeley) 4/2/94"; 4328564Scharnier#endif 4428564Scharnierstatic const char rcsid[] = 4528564Scharnier "$Id$"; 461590Srgrimes#endif /* not lint */ 471590Srgrimes 481590Srgrimes/* 491590Srgrimes * uuencode [input] output 501590Srgrimes * 511590Srgrimes * Encode a file so it can be mailed to a remote system. 521590Srgrimes */ 531590Srgrimes#include <sys/types.h> 541590Srgrimes#include <sys/stat.h> 551590Srgrimes 5628564Scharnier#include <err.h> 571590Srgrimes#include <stdio.h> 5828564Scharnier#include <unistd.h> 591590Srgrimes 6028564Scharniervoid encode __P((void)); 6128564Scharnierstatic void usage __P((void)); 6228564Scharnier 631590Srgrimesint 641590Srgrimesmain(argc, argv) 651590Srgrimes int argc; 661590Srgrimes char *argv[]; 671590Srgrimes{ 681590Srgrimes struct stat sb; 691590Srgrimes int mode; 701590Srgrimes 7124360Simp while (getopt(argc, argv, "") != -1) 721590Srgrimes usage(); 731590Srgrimes argv += optind; 741590Srgrimes argc -= optind; 751590Srgrimes 761590Srgrimes switch(argc) { 771590Srgrimes case 2: /* optional first argument is input file */ 7828564Scharnier if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb)) 7928564Scharnier err(1, "%s", *argv); 801590Srgrimes#define RWX (S_IRWXU|S_IRWXG|S_IRWXO) 811590Srgrimes mode = sb.st_mode & RWX; 821590Srgrimes ++argv; 831590Srgrimes break; 841590Srgrimes case 1: 851590Srgrimes#define RW (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) 861590Srgrimes mode = RW & ~umask(RW); 871590Srgrimes break; 881590Srgrimes case 0: 891590Srgrimes default: 901590Srgrimes usage(); 911590Srgrimes } 921590Srgrimes 931590Srgrimes (void)printf("begin %o %s\n", mode, *argv); 941590Srgrimes encode(); 951590Srgrimes (void)printf("end\n"); 9628564Scharnier if (ferror(stdout)) 9728564Scharnier errx(1, "write error"); 981590Srgrimes exit(0); 991590Srgrimes} 1001590Srgrimes 1011590Srgrimes/* ENC is the basic 1 character encoding function to make a char printing */ 1021590Srgrimes#define ENC(c) ((c) ? ((c) & 077) + ' ': '`') 1031590Srgrimes 1041590Srgrimes/* 1051590Srgrimes * copy from in to out, encoding as you go along. 1061590Srgrimes */ 10728564Scharniervoid 1081590Srgrimesencode() 1091590Srgrimes{ 1101590Srgrimes register int ch, n; 1111590Srgrimes register char *p; 1121590Srgrimes char buf[80]; 1131590Srgrimes 11428564Scharnier while ((n = fread(buf, 1, 45, stdin))) { 1151590Srgrimes ch = ENC(n); 1161590Srgrimes if (putchar(ch) == EOF) 1171590Srgrimes break; 1181590Srgrimes for (p = buf; n > 0; n -= 3, p += 3) { 1191590Srgrimes ch = *p >> 2; 1201590Srgrimes ch = ENC(ch); 1211590Srgrimes if (putchar(ch) == EOF) 1221590Srgrimes break; 1231590Srgrimes ch = (*p << 4) & 060 | (p[1] >> 4) & 017; 1241590Srgrimes ch = ENC(ch); 1251590Srgrimes if (putchar(ch) == EOF) 1261590Srgrimes break; 1271590Srgrimes ch = (p[1] << 2) & 074 | (p[2] >> 6) & 03; 1281590Srgrimes ch = ENC(ch); 1291590Srgrimes if (putchar(ch) == EOF) 1301590Srgrimes break; 1311590Srgrimes ch = p[2] & 077; 1321590Srgrimes ch = ENC(ch); 1331590Srgrimes if (putchar(ch) == EOF) 1341590Srgrimes break; 1351590Srgrimes } 1361590Srgrimes if (putchar('\n') == EOF) 1371590Srgrimes break; 1381590Srgrimes } 13928564Scharnier if (ferror(stdin)) 14028564Scharnier errx(1, "read error"); 1411590Srgrimes ch = ENC('\0'); 1421590Srgrimes (void)putchar(ch); 1431590Srgrimes (void)putchar('\n'); 1441590Srgrimes} 1451590Srgrimes 14628564Scharnierstatic void 1471590Srgrimesusage() 1481590Srgrimes{ 1491590Srgrimes (void)fprintf(stderr,"usage: uuencode [infile] remotefile\n"); 1501590Srgrimes exit(1); 1511590Srgrimes} 152