1 /* $OpenBSD: uuencode.c,v 1.3 2001/07/12 05:17:28 deraadt Exp $ */ 2 /* $NetBSD: uuencode.c,v 1.7 1994/11/17 07:41:15 jtc Exp $ */ 3 4 /*- 5 * Copyright (c) 1983, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 char copyright[] = 38 "@(#) Copyright (c) 1983, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 41 #ifndef lint 42 #if 0 43 static char sccsid[] = "@(#)uuencode.c 8.2 (Berkeley) 4/2/94"; 44 #endif 45 static char rcsid[] = "$OpenBSD: uuencode.c,v 1.3 2001/07/12 05:17:28 deraadt Exp $"; 46 #endif /* not lint */ 47 48 /* 49 * uuencode [input] output 50 * 51 * Encode a file so it can be mailed to a remote system. 52 */ 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <locale.h> 57 #include <errno.h> 58 #include <sys/types.h> 59 #include <sys/stat.h> 60 #include <unistd.h> 61 62 static void encode(); 63 static __dead void usage(); 64 65 int 66 main(argc, argv) 67 int argc; 68 char *argv[]; 69 { 70 struct stat sb; 71 int mode; 72 73 setlocale(LC_ALL, ""); 74 75 while (getopt(argc, argv, "") != -1) 76 usage(); 77 argv += optind; 78 argc -= optind; 79 80 switch(argc) { 81 case 2: /* optional first argument is input file */ 82 if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb)) { 83 (void)fprintf(stderr, "uuencode: %s: %s.\n", 84 *argv, strerror(errno)); 85 exit(1); 86 } 87 #define RWX (S_IRWXU|S_IRWXG|S_IRWXO) 88 mode = sb.st_mode & RWX; 89 ++argv; 90 break; 91 case 1: 92 #define RW (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) 93 mode = RW & ~umask(RW); 94 break; 95 case 0: 96 default: 97 usage(); 98 } 99 100 (void)printf("begin %o %s\n", mode, *argv); 101 encode(); 102 (void)printf("end\n"); 103 if (ferror(stdout)) { 104 (void)fprintf(stderr, "uuencode: write error.\n"); 105 exit(1); 106 } 107 exit(0); 108 } 109 110 /* ENC is the basic 1 character encoding function to make a char printing */ 111 #define ENC(c) ((c) ? ((c) & 077) + ' ': '`') 112 113 /* 114 * copy from in to out, encoding as you go along. 115 */ 116 static void 117 encode() 118 { 119 register int ch, n; 120 register char *p; 121 char buf[80]; 122 123 while ((n = fread(buf, 1, 45, stdin))) { 124 ch = ENC(n); 125 if (putchar(ch) == EOF) 126 break; 127 for (p = buf; n > 0; n -= 3, p += 3) { 128 ch = *p >> 2; 129 ch = ENC(ch); 130 if (putchar(ch) == EOF) 131 break; 132 ch = (*p << 4) & 060 | (p[1] >> 4) & 017; 133 ch = ENC(ch); 134 if (putchar(ch) == EOF) 135 break; 136 ch = (p[1] << 2) & 074 | (p[2] >> 6) & 03; 137 ch = ENC(ch); 138 if (putchar(ch) == EOF) 139 break; 140 ch = p[2] & 077; 141 ch = ENC(ch); 142 if (putchar(ch) == EOF) 143 break; 144 } 145 if (putchar('\n') == EOF) 146 break; 147 } 148 if (ferror(stdin)) { 149 (void)fprintf(stderr, "uuencode: read error.\n"); 150 exit(1); 151 } 152 ch = ENC('\0'); 153 (void)putchar(ch); 154 (void)putchar('\n'); 155 } 156 157 static void 158 usage() 159 { 160 (void)fprintf(stderr,"usage: uuencode [infile] remotefile\n"); 161 exit(1); 162 } 163