1 /* $OpenBSD: uuencode.c,v 1.6 2003/06/10 22:20:53 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. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 char copyright[] = 34 "@(#) Copyright (c) 1983, 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"; 36 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)uuencode.c 8.2 (Berkeley) 4/2/94"; 40 #endif 41 static char rcsid[] = "$OpenBSD: uuencode.c,v 1.6 2003/06/10 22:20:53 deraadt Exp $"; 42 #endif /* not lint */ 43 44 /* 45 * uuencode [input] output 46 * 47 * Encode a file so it can be mailed to a remote system. 48 */ 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include <locale.h> 53 #include <errno.h> 54 #include <sys/types.h> 55 #include <sys/stat.h> 56 #include <unistd.h> 57 58 static void encode(void); 59 static __dead void usage(void); 60 61 int 62 main(int argc, char *argv[]) 63 { 64 struct stat sb; 65 int mode; 66 67 setlocale(LC_ALL, ""); 68 69 while (getopt(argc, argv, "") != -1) 70 usage(); 71 argv += optind; 72 argc -= optind; 73 74 switch(argc) { 75 case 2: /* optional first argument is input file */ 76 if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb)) { 77 (void)fprintf(stderr, "uuencode: %s: %s.\n", 78 *argv, strerror(errno)); 79 exit(1); 80 } 81 #define RWX (S_IRWXU|S_IRWXG|S_IRWXO) 82 mode = sb.st_mode & RWX; 83 ++argv; 84 break; 85 case 1: 86 #define RW (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) 87 mode = RW & ~umask(RW); 88 break; 89 case 0: 90 default: 91 usage(); 92 } 93 94 (void)printf("begin %o %s\n", mode, *argv); 95 encode(); 96 (void)printf("end\n"); 97 if (ferror(stdout)) { 98 (void)fprintf(stderr, "uuencode: write error.\n"); 99 exit(1); 100 } 101 exit(0); 102 } 103 104 /* ENC is the basic 1 character encoding function to make a char printing */ 105 #define ENC(c) ((c) ? ((c) & 077) + ' ': '`') 106 107 /* 108 * copy from in to out, encoding as you go along. 109 */ 110 static void 111 encode(void) 112 { 113 int ch, n; 114 char *p; 115 char buf[80]; 116 117 while ((n = fread(buf, 1, 45, stdin))) { 118 ch = ENC(n); 119 if (putchar(ch) == EOF) 120 break; 121 for (p = buf; n > 0; n -= 3, p += 3) { 122 ch = *p >> 2; 123 ch = ENC(ch); 124 if (putchar(ch) == EOF) 125 break; 126 ch = (*p << 4) & 060 | (p[1] >> 4) & 017; 127 ch = ENC(ch); 128 if (putchar(ch) == EOF) 129 break; 130 ch = (p[1] << 2) & 074 | (p[2] >> 6) & 03; 131 ch = ENC(ch); 132 if (putchar(ch) == EOF) 133 break; 134 ch = p[2] & 077; 135 ch = ENC(ch); 136 if (putchar(ch) == EOF) 137 break; 138 } 139 if (putchar('\n') == EOF) 140 break; 141 } 142 if (ferror(stdin)) { 143 (void)fprintf(stderr, "uuencode: read error.\n"); 144 exit(1); 145 } 146 ch = ENC('\0'); 147 (void)putchar(ch); 148 (void)putchar('\n'); 149 } 150 151 static void 152 usage(void) 153 { 154 (void)fprintf(stderr,"usage: uuencode [infile] remotefile\n"); 155 exit(1); 156 } 157