1 /* ssl_port.h    - standard porting things */
2 /*-
3  * Copyright (c) 2002, 2004 Nick Leuta
4  * All rights reserved.
5  *
6  * This software is based on code developed by Tim Hudson <tjh@cryptsoft.com>
7  * for use in the SSLftp project.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. The name of the author may not be used to endorse or promote products
18  *    derived from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #ifndef HEADER_SSL_PORT_H
34 #define HEADER_SSL_PORT_H
35 
36 /*
37  * SSL security flags
38  */
39 #define SSL_USE_NONSECURE	0x01 /* non-secure mode */
40 #define SSL_USE_COMPAT		0x02 /* FTP-SSL compatibility mode */
41 #define SSL_USE_TLS		0x04 /* RFC2228 compliant FTP-TLS mode */
42 #define SSL_ENABLED		0x06 /* SSL_USE_TLS | SSL_USE_COMPAT */
43 
44 /* Binary inversion */
45 #define SSL_FINV(FLAG)			(FLAG^0xff)
46 /* Turn FLAG bits on */
47 #define SSL_secure_flags_ON(FLAG)	ssl_secure_flags|=FLAG
48 /* Turn FLAG bits off */
49 #define SSL_secure_flags_OFF(FLAG)	ssl_secure_flags&=SSL_FINV(FLAG)
50 
51 extern char	ssl_secure_flags;
52 
53 extern void	PRINTF(const char *fmt, ...);
54 
55 #ifdef USE_SSL
56 
57 #include <stdio.h>
58 
59 #include <openssl/buffer.h>
60 #include <openssl/x509.h>
61 #include <openssl/ssl.h>
62 
63 extern SSL	*ssl_data_con;
64 
65 extern int	ssl_compat_flag;
66 extern int	PBSZ_used_flag;
67 
68 extern int	ssl_encrypt_data;
69 extern int	ssl_data_active_flag;
70 
71 extern int	ssl_read();
72 extern int	ssl_write();
73 
74 extern int	ssl_putc();
75 extern int	ssl_putc_flush();
76 extern int	ssl_getc();
77 
78 /* This cute macro makes things much easier to handle ... */
79 #define GETC(X)		(ssl_active_flag && (((X)==cin)||((X)==cout)) ? ssl_getc(ssl_con) : getc((X)))
80 #define PUTC(X,Y)	(ssl_active_flag && (((Y)==cin)||((Y)==cout)||((Y)==stdout)) ? ssl_putc(ssl_con,(X)) : putc((X),(Y)))
81 #define DATAGETC(X)	(ssl_data_active_flag && ((fileno(X)==data)||(fileno(X)==pdata)) ? ssl_getc(ssl_data_con) : getc((X)))
82 #define DATAPUTC(X,Y)	(ssl_data_active_flag && ((fileno(Y)==data)||(fileno(Y)==pdata)) ? ssl_putc(ssl_data_con,(X)) : putc((X),(Y)))
83 #define FFLUSH(X)	(ssl_active_flag && (((X)==cin)||((X)==cout)) ? 1 : fflush((X)) )
84 #define DATAFLUSH(X)	(ssl_data_active_flag && ((fileno(X)==data)||(fileno(X)==pdata)) ? ssl_putc_flush(ssl_data_con) : fflush((X)))
85 
86 #else
87 
88 #define GETC(X)		getc((X))
89 #define PUTC(X,Y)	putc((X),(Y))
90 #define DATAGETC(X)	getc((X))
91 #define DATAPUTC(X,Y)	putc((X),(Y))
92 #define FFLUSH(X)	fflush((X))
93 #define DATAFLUSH(X)	fflush((X))
94 
95 #endif /* USE_SSL */
96 
97 #endif /*  HEADER_SSL_PORT_H */
98