1 /* $NetBSD: uuencode.c,v 1.11 2005/06/29 20:35:48 wiz 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)uuencode.c 8.2 (Berkeley) 4/2/94"; 41 #else 42 __RCSID("$NetBSD: uuencode.c,v 1.11 2005/06/29 20:35:48 wiz Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 /* 47 * uuencode [input] output 48 * 49 * Encode a file so it can be mailed to a remote system. 50 */ 51 #include <sys/types.h> 52 #include <sys/stat.h> 53 #include <err.h> 54 #include <errno.h> 55 #include <locale.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <string.h> 59 #include <unistd.h> 60 61 int main(int, char *[]); 62 static void encode(void); 63 static void usage(void); 64 65 int 66 main(int argc, char *argv[]) 67 { 68 struct stat sb; 69 int mode; 70 71 mode = 0; 72 setlocale(LC_ALL, ""); 73 setprogname(argv[0]); 74 75 while (getopt(argc, argv, "") != -1) 76 usage(); 77 argv += optind; 78 argc -= optind; 79 80 switch(argc) { 81 case 2: /* optional first argument is input file */ 82 if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb)) 83 err(1, "%s", *argv); 84 #define RWX (S_IRWXU|S_IRWXG|S_IRWXO) 85 mode = sb.st_mode & RWX; 86 ++argv; 87 break; 88 case 1: 89 #define RW (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) 90 mode = RW & ~umask(RW); 91 break; 92 case 0: 93 default: 94 usage(); 95 } 96 97 (void)printf("begin %o %s\n", mode, *argv); 98 encode(); 99 (void)printf("end\n"); 100 if (ferror(stdout)) 101 err(1, "write error"); 102 exit(0); 103 } 104 105 /* ENC is the basic 1 character encoding function to make a char printing */ 106 #define ENC(c) ((c) ? ((c) & 077) + ' ': '`') 107 108 /* 109 * copy from in to out, encoding as you go along. 110 */ 111 static void 112 encode(void) 113 { 114 int ch, n; 115 char *p; 116 char buf[80]; 117 118 while ((n = fread(buf, 1, 45, stdin)) > 0) { 119 ch = ENC(n); 120 if (putchar(ch) == EOF) 121 break; 122 for (p = buf; n > 0; n -= 3, p += 3) { 123 ch = *p >> 2; 124 ch = ENC(ch); 125 if (putchar(ch) == EOF) 126 break; 127 ch = ((*p << 4) & 060) | ((p[1] >> 4) & 017); 128 ch = ENC(ch); 129 if (putchar(ch) == EOF) 130 break; 131 ch = ((p[1] << 2) & 074) | ((p[2] >> 6) & 03); 132 ch = ENC(ch); 133 if (putchar(ch) == EOF) 134 break; 135 ch = p[2] & 077; 136 ch = ENC(ch); 137 if (putchar(ch) == EOF) 138 break; 139 } 140 if (putchar('\n') == EOF) 141 break; 142 } 143 if (ferror(stdin)) 144 err(1, "read error."); 145 ch = ENC('\0'); 146 (void)putchar(ch); 147 (void)putchar('\n'); 148 } 149 150 static void 151 usage(void) 152 { 153 (void)fprintf(stderr, "usage: %s [infile] remotefile\n", 154 getprogname()); 155 exit(1); 156 } 157