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authorDamien Miller <djm@mindrot.org>2000-05-07 12:03:14 +1000
committerDamien Miller <djm@mindrot.org>2000-05-07 12:03:14 +1000
commite247cc402bc391650f014316363dbce78ad85dc7 (patch)
tree65d72c3d3514c6119f47017f14b71ed153485a5d /uuencode.c
parent0437b33e54fd72060d17908d6abf96bfabaacad2 (diff)
- Remove references to SSLeay.
- Big OpenBSD CVS update - markus@cvs.openbsd.org [clientloop.c] - typo [session.c] - update proctitle on pty alloc/dealloc, e.g. w/ windows client [session.c] - update proctitle for proto 1, too [channels.h nchan.c serverloop.c session.c sshd.c] - use c-style comments - deraadt@cvs.openbsd.org [scp.c] - more atomicio - markus@cvs.openbsd.org [channels.c] - set O_NONBLOCK [ssh.1] - update AUTHOR [readconf.c ssh-keygen.c ssh.h] - default DSA key file ~/.ssh/id_dsa [clientloop.c] - typo, rm verbose debug - deraadt@cvs.openbsd.org [ssh-keygen.1] - document DSA use of ssh-keygen [sshd.8] - a start at describing what i understand of the DSA side [ssh-keygen.1] - document -X and -x [ssh-keygen.c] - simplify usage - markus@cvs.openbsd.org [sshd.8] - there is no rhosts_dsa [ssh-keygen.1] - document -y, update -X,-x [nchan.c] - fix close for non-open ssh1 channels [servconf.c servconf.h ssh.h sshd.8 sshd.c ] - s/DsaKey/HostDSAKey/, document option [sshconnect2.c] - respect number_of_password_prompts [channels.c channels.h servconf.c servconf.h session.c sshd.8] - GatewayPorts for sshd, ok deraadt@ [ssh-add.1 ssh-agent.1 ssh.1] - more doc on: DSA, id_dsa, known_hosts2, authorized_keys2 [ssh.1] - more info on proto 2 [sshd.8] - sync AUTHOR w/ ssh.1 [key.c key.h sshconnect.c] - print key type when talking about host keys [packet.c] - clear padding in ssh2 [dsa.c key.c radix.c ssh.h sshconnect1.c uuencode.c uuencode.h] - replace broken uuencode w/ libc b64_ntop [auth2.c] - log failure before sending the reply [key.c radix.c uuencode.c] - remote trailing comments before calling __b64_pton [auth2.c readconf.c readconf.h servconf.c servconf.h ssh.1] [sshconnect2.c sshd.8] - add DSAAuthetication option to ssh/sshd, document SSH2 in sshd.8 - Bring in b64_ntop and b64_pton from OpenBSD libc (bsd-base64.[ch])
Diffstat (limited to 'uuencode.c')
-rw-r--r--uuencode.c110
1 files changed, 20 insertions, 90 deletions
diff --git a/uuencode.c b/uuencode.c
index 626890050..fc84d5a58 100644
--- a/uuencode.c
+++ b/uuencode.c
@@ -1,106 +1,36 @@
1/* 1/*
2 * base-64 encoding pinched from lynx2-7-2, who pinched it from rpem. 2 * Copyright (c) 2000 Markus Friedl. All rights reserved.
3 * Originally written by Mark Riordan 12 August 1990 and 17 Feb 1991
4 * and placed in the public domain.
5 *
6 * Dug Song <dugsong@UMICH.EDU>
7 */ 3 */
8
9#include "includes.h" 4#include "includes.h"
10#include "xmalloc.h" 5#include "xmalloc.h"
11 6
12char six2pr[64] = { 7#include <resolv.h>
13 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
14 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
15 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
16 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
17 '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'
18};
19
20unsigned char pr2six[256];
21 8
22int 9int
23uuencode(unsigned char *bufin, unsigned int nbytes, char *bufcoded) 10uuencode(unsigned char *src, unsigned int srclength,
11 char *target, size_t targsize)
24{ 12{
25 /* ENC is the basic 1 character encoding function to make a char printing */ 13 return __b64_ntop(src, srclength, target, targsize);
26#define ENC(c) six2pr[c]
27
28 register char *outptr = bufcoded;
29 unsigned int i;
30
31 for (i = 0; i < nbytes; i += 3) {
32 *(outptr++) = ENC(*bufin >> 2); /* c1 */
33 *(outptr++) = ENC(((*bufin << 4) & 060) | ((bufin[1] >> 4) & 017)); /* c2 */
34 *(outptr++) = ENC(((bufin[1] << 2) & 074) | ((bufin[2] >> 6) & 03)); /* c3 */
35 *(outptr++) = ENC(bufin[2] & 077); /* c4 */
36 bufin += 3;
37 }
38 if (i == nbytes + 1) {
39 outptr[-1] = '=';
40 } else if (i == nbytes + 2) {
41 outptr[-1] = '=';
42 outptr[-2] = '=';
43 } else if (i == nbytes) {
44 *(outptr++) = '=';
45 }
46 *outptr = '\0';
47 return (outptr - bufcoded);
48} 14}
49 15
50int 16int
51uudecode(const char *bufcoded, unsigned char *bufplain, int outbufsize) 17uudecode(const char *src, unsigned char *target, size_t targsize)
52{ 18{
53 /* single character decode */ 19 int len;
54#define DEC(c) pr2six[(unsigned char)c] 20 char *encoded, *p;
55#define MAXVAL 63
56
57 static int first = 1;
58 int nbytesdecoded, j;
59 const char *bufin = bufcoded;
60 register unsigned char *bufout = bufplain;
61 register int nprbytes;
62 21
63 /* If this is the first call, initialize the mapping table. */ 22 /* copy the 'readonly' source */
64 if (first) { 23 encoded = xstrdup(src);
65 first = 0; 24 /* skip whitespace and data */
66 for (j = 0; j < 256; j++) 25 for (p = encoded; *p == ' ' || *p == '\t'; p++)
67 pr2six[j] = MAXVAL + 1;
68 for (j = 0; j < 64; j++)
69 pr2six[(unsigned char) six2pr[j]] = (unsigned char) j;
70 }
71 /* Strip leading whitespace. */
72 while (*bufcoded == ' ' || *bufcoded == '\t')
73 bufcoded++;
74
75 /*
76 * Figure out how many characters are in the input buffer. If this
77 * would decode into more bytes than would fit into the output
78 * buffer, adjust the number of input bytes downwards.
79 */
80 bufin = bufcoded;
81 while (DEC(*(bufin++)) <= MAXVAL)
82 ; 26 ;
83 nprbytes = bufin - bufcoded - 1; 27 for (; *p != '\0' && *p != ' ' && *p != '\t'; p++)
84 nbytesdecoded = ((nprbytes + 3) / 4) * 3; 28 ;
85 if (nbytesdecoded > outbufsize) 29 /* and remote trailing whitespace because __b64_pton needs this */
86 nprbytes = (outbufsize * 4) / 3; 30 *p = '\0';
87 31 len = __b64_pton(encoded, target, targsize);
88 bufin = bufcoded; 32 xfree(encoded);
89 33 return len;
90 while (nprbytes > 0) {
91 *(bufout++) = (unsigned char) (DEC(*bufin) << 2 | DEC(bufin[1]) >> 4);
92 *(bufout++) = (unsigned char) (DEC(bufin[1]) << 4 | DEC(bufin[2]) >> 2);
93 *(bufout++) = (unsigned char) (DEC(bufin[2]) << 6 | DEC(bufin[3]));
94 bufin += 4;
95 nprbytes -= 4;
96 }
97 if (nprbytes & 03) {
98 if (DEC(bufin[-2]) > MAXVAL)
99 nbytesdecoded -= 2;
100 else
101 nbytesdecoded -= 1;
102 }
103 return (nbytesdecoded);
104} 34}
105 35
106void 36void
@@ -108,7 +38,7 @@ dump_base64(FILE *fp, unsigned char *data, int len)
108{ 38{
109 unsigned char *buf = xmalloc(2*len); 39 unsigned char *buf = xmalloc(2*len);
110 int i, n; 40 int i, n;
111 n = uuencode(data, len, buf); 41 n = uuencode(data, len, buf, 2*len);
112 for (i = 0; i < n; i++) { 42 for (i = 0; i < n; i++) {
113 fprintf(fp, "%c", buf[i]); 43 fprintf(fp, "%c", buf[i]);
114 if (i % 70 == 69) 44 if (i % 70 == 69)