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 <stdlib.h> 59 #include <unistd.h> 60 61 void encode __P((void)); 62 static void usage __P((void)); 63 64 int 65 main(argc, argv) 66 int argc; 67 char *argv[]; 68 { 69 struct stat sb; 70 int mode; 71 72 while (getopt(argc, argv, "") != -1) 73 usage(); 74 argv += optind; 75 argc -= optind; 76 77 switch(argc) { 78 case 2: /* optional first argument is input file */ 79 if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb)) 80 err(1, "%s", *argv); 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 errx(1, "write error"); 99 exit(0); 100 } 101 102 /* ENC is the basic 1 character encoding function to make a char printing */ 103 #define ENC(c) ((c) ? ((c) & 077) + ' ': '`') 104 105 /* 106 * copy from in to out, encoding as you go along. 107 */ 108 void 109 encode() 110 { 111 register int ch, n; 112 register char *p; 113 char buf[80]; 114 115 while ((n = fread(buf, 1, 45, stdin))) { 116 ch = ENC(n); 117 if (putchar(ch) == EOF) 118 break; 119 for (p = buf; n > 0; n -= 3, p += 3) { 120 /* Pad with nulls if not a multiple of 3. */ 121 if (n < 3) { 122 p[2] = '\0'; 123 if (n < 2) 124 p[1] = '\0'; 125 } 126 ch = *p >> 2; 127 ch = ENC(ch); 128 if (putchar(ch) == EOF) 129 break; 130 ch = ((*p << 4) & 060) | ((p[1] >> 4) & 017); 131 ch = ENC(ch); 132 if (putchar(ch) == EOF) 133 break; 134 ch = ((p[1] << 2) & 074) | ((p[2] >> 6) & 03); 135 ch = ENC(ch); 136 if (putchar(ch) == EOF) 137 break; 138 ch = p[2] & 077; 139 ch = ENC(ch); 140 if (putchar(ch) == EOF) 141 break; 142 } 143 if (putchar('\n') == EOF) 144 break; 145 } 146 if (ferror(stdin)) 147 errx(1, "read error"); 148 ch = ENC('\0'); 149 (void)putchar(ch); 150 (void)putchar('\n'); 151 } 152 153 static void 154 usage() 155 { 156 (void)fprintf(stderr,"usage: uuencode [infile] remotefile\n"); 157 exit(1); 158 } 159