1 /* 2 * Copyright (c) 1983 Regents of the University of California. 3 * 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 /*static char sccsid[] = "from: @(#)uuencode.c 5.9 (Berkeley) 6/1/90";*/ 36 static char rcsid[] = "$Id: uuencode.c,v 1.3 1993/08/27 22:30:57 jtc Exp $"; 37 #endif /* not lint */ 38 39 /* 40 * uuencode [input] output 41 * 42 * Encode a file so it can be mailed to a remote system. 43 */ 44 #include <sys/types.h> 45 #include <sys/stat.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <errno.h> 50 51 static void encode(); 52 static void usage(); 53 54 int 55 main(argc, argv) 56 int argc; 57 char **argv; 58 { 59 struct stat sb; 60 int mode; 61 62 while (getopt(argc, argv, "") != EOF) 63 usage(); 64 argv += optind; 65 argc -= optind; 66 67 switch(argc) { 68 case 2: /* optional first argument is input file */ 69 if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb)) { 70 (void)fprintf(stderr, "uuencode: %s: %s.\n", 71 *argv, strerror(errno)); 72 exit(1); 73 } 74 #define RWX (S_IRWXU|S_IRWXG|S_IRWXO) 75 mode = sb.st_mode & RWX; 76 ++argv; 77 break; 78 case 1: 79 #define RW (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) 80 mode = RW & ~umask(RW); 81 break; 82 case 0: 83 default: 84 usage(); 85 } 86 87 (void)printf("begin %o %s\n", mode, *argv); 88 encode(); 89 (void)printf("end\n"); 90 if (ferror(stdout)) { 91 (void)fprintf(stderr, "uuencode: write error.\n"); 92 exit(1); 93 } 94 exit(0); 95 } 96 97 /* ENC is the basic 1 character encoding function to make a char printing */ 98 #define ENC(c) ((c) ? ((c) & 077) + ' ': '`') 99 100 /* 101 * copy from in to out, encoding as you go along. 102 */ 103 static void 104 encode() 105 { 106 register int ch, n; 107 register char *p; 108 char buf[80]; 109 110 while (n = fread(buf, 1, 45, stdin)) { 111 ch = ENC(n); 112 if (putchar(ch) == EOF) 113 break; 114 for (p = buf; n > 0; n -= 3, p += 3) { 115 ch = *p >> 2; 116 ch = ENC(ch); 117 if (putchar(ch) == EOF) 118 break; 119 ch = (*p << 4) & 060 | (p[1] >> 4) & 017; 120 ch = ENC(ch); 121 if (putchar(ch) == EOF) 122 break; 123 ch = (p[1] << 2) & 074 | (p[2] >> 6) & 03; 124 ch = ENC(ch); 125 if (putchar(ch) == EOF) 126 break; 127 ch = p[2] & 077; 128 ch = ENC(ch); 129 if (putchar(ch) == EOF) 130 break; 131 } 132 if (putchar('\n') == EOF) 133 break; 134 } 135 if (ferror(stdin)) { 136 (void)fprintf(stderr, "uuencode: read error.\n"); 137 exit(1); 138 } 139 ch = ENC('\0'); 140 (void)putchar(ch); 141 (void)putchar('\n'); 142 } 143 144 static void 145 usage() 146 { 147 (void)fprintf(stderr,"usage: uuencode [infile] remotefile\n"); 148 exit(1); 149 } 150