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