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 static const 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 #if 0 42 static char sccsid[] = "@(#)uuencode.c 8.2 (Berkeley) 4/2/94"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 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 <sys/types.h> 54 #include <sys/stat.h> 55 56 #include <err.h> 57 #include <stdio.h> 58 #include <unistd.h> 59 60 void encode __P((void)); 61 static void usage __P((void)); 62 63 int 64 main(argc, argv) 65 int argc; 66 char *argv[]; 67 { 68 struct stat sb; 69 int mode; 70 71 while (getopt(argc, argv, "") != -1) 72 usage(); 73 argv += optind; 74 argc -= optind; 75 76 switch(argc) { 77 case 2: /* optional first argument is input file */ 78 if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb)) 79 err(1, "%s", *argv); 80 #define RWX (S_IRWXU|S_IRWXG|S_IRWXO) 81 mode = sb.st_mode & RWX; 82 ++argv; 83 break; 84 case 1: 85 #define RW (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) 86 mode = RW & ~umask(RW); 87 break; 88 case 0: 89 default: 90 usage(); 91 } 92 93 (void)printf("begin %o %s\n", mode, *argv); 94 encode(); 95 (void)printf("end\n"); 96 if (ferror(stdout)) 97 errx(1, "write error"); 98 exit(0); 99 } 100 101 /* ENC is the basic 1 character encoding function to make a char printing */ 102 #define ENC(c) ((c) ? ((c) & 077) + ' ': '`') 103 104 /* 105 * copy from in to out, encoding as you go along. 106 */ 107 void 108 encode() 109 { 110 register int ch, n; 111 register char *p; 112 char buf[80]; 113 114 while ((n = fread(buf, 1, 45, stdin))) { 115 ch = ENC(n); 116 if (putchar(ch) == EOF) 117 break; 118 for (p = buf; n > 0; n -= 3, p += 3) { 119 ch = *p >> 2; 120 ch = ENC(ch); 121 if (putchar(ch) == EOF) 122 break; 123 ch = (*p << 4) & 060 | (p[1] >> 4) & 017; 124 ch = ENC(ch); 125 if (putchar(ch) == EOF) 126 break; 127 ch = (p[1] << 2) & 074 | (p[2] >> 6) & 03; 128 ch = ENC(ch); 129 if (putchar(ch) == EOF) 130 break; 131 ch = p[2] & 077; 132 ch = ENC(ch); 133 if (putchar(ch) == EOF) 134 break; 135 } 136 if (putchar('\n') == EOF) 137 break; 138 } 139 if (ferror(stdin)) 140 errx(1, "read error"); 141 ch = ENC('\0'); 142 (void)putchar(ch); 143 (void)putchar('\n'); 144 } 145 146 static void 147 usage() 148 { 149 (void)fprintf(stderr,"usage: uuencode [infile] remotefile\n"); 150 exit(1); 151 } 152