Branch data Line data Source code
1 : : /* ssl/s23_pkt.c */
2 : : /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 : : * All rights reserved.
4 : : *
5 : : * This package is an SSL implementation written
6 : : * by Eric Young (eay@cryptsoft.com).
7 : : * The implementation was written so as to conform with Netscapes SSL.
8 : : *
9 : : * This library is free for commercial and non-commercial use as long as
10 : : * the following conditions are aheared to. The following conditions
11 : : * apply to all code found in this distribution, be it the RC4, RSA,
12 : : * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 : : * included with this distribution is covered by the same copyright terms
14 : : * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 : : *
16 : : * Copyright remains Eric Young's, and as such any Copyright notices in
17 : : * the code are not to be removed.
18 : : * If this package is used in a product, Eric Young should be given attribution
19 : : * as the author of the parts of the library used.
20 : : * This can be in the form of a textual message at program startup or
21 : : * in documentation (online or textual) provided with the package.
22 : : *
23 : : * Redistribution and use in source and binary forms, with or without
24 : : * modification, are permitted provided that the following conditions
25 : : * are met:
26 : : * 1. Redistributions of source code must retain the copyright
27 : : * notice, this list of conditions and the following disclaimer.
28 : : * 2. Redistributions in binary form must reproduce the above copyright
29 : : * notice, this list of conditions and the following disclaimer in the
30 : : * documentation and/or other materials provided with the distribution.
31 : : * 3. All advertising materials mentioning features or use of this software
32 : : * must display the following acknowledgement:
33 : : * "This product includes cryptographic software written by
34 : : * Eric Young (eay@cryptsoft.com)"
35 : : * The word 'cryptographic' can be left out if the rouines from the library
36 : : * being used are not cryptographic related :-).
37 : : * 4. If you include any Windows specific code (or a derivative thereof) from
38 : : * the apps directory (application code) you must include an acknowledgement:
39 : : * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 : : *
41 : : * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 : : * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 : : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 : : * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 : : * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 : : * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 : : * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 : : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 : : * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 : : * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 : : * SUCH DAMAGE.
52 : : *
53 : : * The licence and distribution terms for any publically available version or
54 : : * derivative of this code cannot be changed. i.e. this code cannot simply be
55 : : * copied and put under another distribution licence
56 : : * [including the GNU Public Licence.]
57 : : */
58 : :
59 : : #include <stdio.h>
60 : : #include <errno.h>
61 : : #define USE_SOCKETS
62 : : #include "ssl_locl.h"
63 : : #include <openssl/evp.h>
64 : : #include <openssl/buffer.h>
65 : :
66 : 596 : int ssl23_write_bytes(SSL *s)
67 : : {
68 : : int i,num,tot;
69 : : char *buf;
70 : :
71 : 596 : buf=s->init_buf->data;
72 : 596 : tot=s->init_off;
73 : 596 : num=s->init_num;
74 : : for (;;)
75 : : {
76 : 794 : s->rwstate=SSL_WRITING;
77 : 794 : i=BIO_write(s->wbio,&(buf[tot]),num);
78 [ + + ]: 794 : if (i <= 0)
79 : : {
80 : 396 : s->init_off=tot;
81 : 396 : s->init_num=num;
82 : 396 : return(i);
83 : : }
84 : 398 : s->rwstate=SSL_NOTHING;
85 [ + + ]: 398 : if (i == num) return(tot+i);
86 : :
87 : 198 : num-=i;
88 : 198 : tot+=i;
89 : 198 : }
90 : : }
91 : :
92 : : /* return regularly only when we have read (at least) 'n' bytes */
93 : 1194 : int ssl23_read_bytes(SSL *s, int n)
94 : : {
95 : : unsigned char *p;
96 : : int j;
97 : :
98 [ + - ]: 1194 : if (s->packet_length < (unsigned int)n)
99 : : {
100 : 1194 : p=s->packet;
101 : :
102 : : for (;;)
103 : : {
104 : 1260 : s->rwstate=SSL_READING;
105 : 1260 : j=BIO_read(s->rbio,(char *)&(p[s->packet_length]),
106 : 1260 : n-s->packet_length);
107 [ + + ]: 1260 : if (j <= 0)
108 : : return(j);
109 : 466 : s->rwstate=SSL_NOTHING;
110 : 466 : s->packet_length+=j;
111 [ + + ]: 466 : if (s->packet_length >= (unsigned int)n)
112 : 400 : return(s->packet_length);
113 : : }
114 : : }
115 : : return(n);
116 : : }
117 : :
|
