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 #if 0 41 #ifndef lint 42 static char sccsid[] = "@(#)uuencode.c 8.2 (Berkeley) 4/2/94"; 43 #endif /* not lint */ 44 #endif 45 46 #include <sys/cdefs.h> 47 __FBSDID("$FreeBSD$"); 48 49 /* 50 * uuencode [input] output 51 * 52 * Encode a file so it can be mailed to a remote system. 53 */ 54 #include <sys/param.h> 55 #include <sys/socket.h> 56 #include <sys/stat.h> 57 58 #include <netinet/in.h> 59 60 #include <err.h> 61 #include <resolv.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <unistd.h> 66 67 void encode(void); 68 void base64_encode(void); 69 static void usage(void); 70 71 FILE *output; 72 int mode; 73 char **av; 74 75 int 76 main(int argc, char *argv[]) 77 { 78 struct stat sb; 79 int base64; 80 char ch; 81 char *outfile; 82 83 base64 = 0; 84 outfile = NULL; 85 86 while ((ch = getopt(argc, argv, "mo:")) != -1) { 87 switch (ch) { 88 case 'm': 89 base64 = 1; 90 break; 91 case 'o': 92 outfile = optarg; 93 break; 94 case '?': 95 default: 96 usage(); 97 } 98 } 99 argv += optind; 100 argc -= optind; 101 102 switch(argc) { 103 case 2: /* optional first argument is input file */ 104 if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb)) 105 err(1, "%s", *argv); 106 #define RWX (S_IRWXU|S_IRWXG|S_IRWXO) 107 mode = sb.st_mode & RWX; 108 ++argv; 109 break; 110 case 1: 111 #define RW (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) 112 mode = RW & ~umask(RW); 113 break; 114 case 0: 115 default: 116 usage(); 117 } 118 119 av = argv; 120 121 if (outfile != NULL) { 122 output = fopen(outfile, "w+"); 123 if (output == NULL) 124 err(1, "unable to open %s for output", outfile); 125 } else 126 output = stdout; 127 if (base64) 128 base64_encode(); 129 else 130 encode(); 131 if (ferror(output)) 132 errx(1, "write error"); 133 exit(0); 134 } 135 136 /* ENC is the basic 1 character encoding function to make a char printing */ 137 #define ENC(c) ((c) ? ((c) & 077) + ' ': '`') 138 139 /* 140 * Copy from in to out, encoding in base64 as you go along. 141 */ 142 void 143 base64_encode(void) 144 { 145 #define GROUPS 8 /* Group output chunks */ 146 unsigned char buf[6]; 147 char buf2[16]; 148 size_t n; 149 int rv, sequence; 150 151 sequence = 0; 152 153 fprintf(output, "begin-base64 %o %s\n", mode, *av); 154 while ((n = fread(buf, 1, sizeof(buf), stdin))) { 155 ++sequence; 156 rv = b64_ntop(buf, n, buf2, (sizeof(buf2) / sizeof(buf2[0]))); 157 if (rv == -1) 158 errx(1, "b64_ntop: error encoding base64"); 159 fprintf(output, "%s%s", buf2, (sequence % GROUPS) ? "" : "\n"); 160 } 161 if (sequence % GROUPS) 162 fprintf(output, "\n"); 163 fprintf(output, "====\n"); 164 } 165 166 /* 167 * Copy from in to out, encoding as you go along. 168 */ 169 void 170 encode(void) 171 { 172 register int ch, n; 173 register char *p; 174 char buf[80]; 175 176 (void)fprintf(output, "begin %o %s\n", mode, *av); 177 while ((n = fread(buf, 1, 45, stdin))) { 178 ch = ENC(n); 179 if (fputc(ch, output) == EOF) 180 break; 181 for (p = buf; n > 0; n -= 3, p += 3) { 182 /* Pad with nulls if not a multiple of 3. */ 183 if (n < 3) { 184 p[2] = '\0'; 185 if (n < 2) 186 p[1] = '\0'; 187 } 188 ch = *p >> 2; 189 ch = ENC(ch); 190 if (fputc(ch, output) == EOF) 191 break; 192 ch = ((*p << 4) & 060) | ((p[1] >> 4) & 017); 193 ch = ENC(ch); 194 if (fputc(ch, output) == EOF) 195 break; 196 ch = ((p[1] << 2) & 074) | ((p[2] >> 6) & 03); 197 ch = ENC(ch); 198 if (fputc(ch, output) == EOF) 199 break; 200 ch = p[2] & 077; 201 ch = ENC(ch); 202 if (fputc(ch, output) == EOF) 203 break; 204 } 205 if (fputc('\n', output) == EOF) 206 break; 207 } 208 if (ferror(stdin)) 209 errx(1, "read error"); 210 (void)fprintf(output, "%c\nend\n", ENC('\0')); 211 } 212 213 static void 214 usage(void) 215 { 216 (void)fprintf(stderr,"usage: uuencode [-m] [-o outfile] [infile] remotefile\n"); 217 exit(1); 218 } 219