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0b89895b WJ |
1 | /* |
2 | * Copyright (c) 1983 Regents of the University of California. | |
3 | * 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 char sccsid[] = "@(#)uuencode.c 5.9 (Berkeley) 6/1/90"; | |
36 | #endif /* not lint */ | |
37 | ||
38 | /* | |
39 | * uuencode [input] output | |
40 | * | |
41 | * Encode a file so it can be mailed to a remote system. | |
42 | */ | |
43 | #include <sys/types.h> | |
44 | #include <sys/stat.h> | |
45 | #include <stdio.h> | |
46 | ||
47 | main(argc, argv) | |
48 | int argc; | |
49 | char **argv; | |
50 | { | |
51 | extern int optind; | |
52 | extern int errno; | |
53 | struct stat sb; | |
54 | int mode; | |
55 | char *strerror(); | |
56 | ||
57 | while (getopt(argc, argv, "") != EOF) | |
58 | usage(); | |
59 | argv += optind; | |
60 | argc -= optind; | |
61 | ||
62 | switch(argc) { | |
63 | case 2: /* optional first argument is input file */ | |
64 | if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb)) { | |
65 | (void)fprintf(stderr, "uuencode: %s: %s.\n", | |
66 | *argv, strerror(errno)); | |
67 | exit(1); | |
68 | } | |
69 | #define RWX (S_IRWXU|S_IRWXG|S_IRWXO) | |
70 | mode = sb.st_mode & RWX; | |
71 | ++argv; | |
72 | break; | |
73 | case 1: | |
74 | #define RW (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) | |
75 | mode = RW & ~umask(RW); | |
76 | break; | |
77 | case 0: | |
78 | default: | |
79 | usage(); | |
80 | } | |
81 | ||
82 | (void)printf("begin %o %s\n", mode, *argv); | |
83 | encode(); | |
84 | (void)printf("end\n"); | |
85 | if (ferror(stdout)) { | |
86 | (void)fprintf(stderr, "uuencode: write error.\n"); | |
87 | exit(1); | |
88 | } | |
89 | exit(0); | |
90 | } | |
91 | ||
92 | /* ENC is the basic 1 character encoding function to make a char printing */ | |
93 | #define ENC(c) ((c) ? ((c) & 077) + ' ': '`') | |
94 | ||
95 | /* | |
96 | * copy from in to out, encoding as you go along. | |
97 | */ | |
98 | encode() | |
99 | { | |
100 | register int ch, n; | |
101 | register char *p; | |
102 | char buf[80]; | |
103 | ||
104 | while (n = fread(buf, 1, 45, stdin)) { | |
105 | ch = ENC(n); | |
106 | if (putchar(ch) == EOF) | |
107 | break; | |
108 | for (p = buf; n > 0; n -= 3, p += 3) { | |
109 | ch = *p >> 2; | |
110 | ch = ENC(ch); | |
111 | if (putchar(ch) == EOF) | |
112 | break; | |
113 | ch = (*p << 4) & 060 | (p[1] >> 4) & 017; | |
114 | ch = ENC(ch); | |
115 | if (putchar(ch) == EOF) | |
116 | break; | |
117 | ch = (p[1] << 2) & 074 | (p[2] >> 6) & 03; | |
118 | ch = ENC(ch); | |
119 | if (putchar(ch) == EOF) | |
120 | break; | |
121 | ch = p[2] & 077; | |
122 | ch = ENC(ch); | |
123 | if (putchar(ch) == EOF) | |
124 | break; | |
125 | } | |
126 | if (putchar('\n') == EOF) | |
127 | break; | |
128 | } | |
129 | if (ferror(stdin)) { | |
130 | (void)fprintf(stderr, "uuencode: read error.\n"); | |
131 | exit(1); | |
132 | } | |
133 | ch = ENC('\0'); | |
134 | (void)putchar(ch); | |
135 | (void)putchar('\n'); | |
136 | } | |
137 | ||
138 | usage() | |
139 | { | |
140 | (void)fprintf(stderr,"usage: uuencode [infile] remotefile\n"); | |
141 | exit(1); | |
142 | } |