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