1 /* $NetBSD: uuencode.c,v 1.8 1997/10/20 02:51:01 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)uuencode.c 8.2 (Berkeley) 4/2/94"; 45 #else 46 __RCSID("$NetBSD: uuencode.c,v 1.8 1997/10/20 02:51:01 lukem Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 /* 51 * uuencode [input] output 52 * 53 * Encode a file so it can be mailed to a remote system. 54 */ 55 #include <sys/types.h> 56 #include <sys/stat.h> 57 #include <err.h> 58 #include <errno.h> 59 #include <locale.h> 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #include <unistd.h> 64 65 int main __P((int, char **)); 66 static void encode __P((void)); 67 static void usage __P((void)); 68 69 int 70 main(argc, argv) 71 int argc; 72 char *argv[]; 73 { 74 struct stat sb; 75 int mode; 76 77 mode = 0; 78 setlocale(LC_ALL, ""); 79 80 while (getopt(argc, argv, "") != -1) 81 usage(); 82 argv += optind; 83 argc -= optind; 84 85 switch(argc) { 86 case 2: /* optional first argument is input file */ 87 if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb)) 88 err(1, "%s", *argv); 89 #define RWX (S_IRWXU|S_IRWXG|S_IRWXO) 90 mode = sb.st_mode & RWX; 91 ++argv; 92 break; 93 case 1: 94 #define RW (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) 95 mode = RW & ~umask(RW); 96 break; 97 case 0: 98 default: 99 usage(); 100 } 101 102 (void)printf("begin %o %s\n", mode, *argv); 103 encode(); 104 (void)printf("end\n"); 105 if (ferror(stdout)) 106 err(1, "write error"); 107 exit(0); 108 } 109 110 /* ENC is the basic 1 character encoding function to make a char printing */ 111 #define ENC(c) ((c) ? ((c) & 077) + ' ': '`') 112 113 /* 114 * copy from in to out, encoding as you go along. 115 */ 116 static void 117 encode() 118 { 119 int ch, n; 120 char *p; 121 char buf[80]; 122 123 while ((n = fread(buf, 1, 45, stdin)) > 0) { 124 ch = ENC(n); 125 if (putchar(ch) == EOF) 126 break; 127 for (p = buf; n > 0; n -= 3, p += 3) { 128 ch = *p >> 2; 129 ch = ENC(ch); 130 if (putchar(ch) == EOF) 131 break; 132 ch = ((*p << 4) & 060) | ((p[1] >> 4) & 017); 133 ch = ENC(ch); 134 if (putchar(ch) == EOF) 135 break; 136 ch = ((p[1] << 2) & 074) | ((p[2] >> 6) & 03); 137 ch = ENC(ch); 138 if (putchar(ch) == EOF) 139 break; 140 ch = p[2] & 077; 141 ch = ENC(ch); 142 if (putchar(ch) == EOF) 143 break; 144 } 145 if (putchar('\n') == EOF) 146 break; 147 } 148 if (ferror(stdin)) 149 err(1, "read error."); 150 ch = ENC('\0'); 151 (void)putchar(ch); 152 (void)putchar('\n'); 153 } 154 155 static void 156 usage() 157 { 158 (void)fprintf(stderr,"usage: uuencode [infile] remotefile\n"); 159 exit(1); 160 } 161