2 * Copyright (c) 1997 - 2004 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute 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.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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
34 #include "krb5_locl.h"
35 #include "store-int.h"
41 typedef struct socket_storage
{
45 #define SOCK(S) (((socket_storage*)(S)->data)->sock)
48 socket_fetch(krb5_storage
* sp
, void *data
, size_t size
)
50 return net_read(SOCK(sp
), data
, size
);
54 socket_store(krb5_storage
* sp
, const void *data
, size_t size
)
56 return net_write(SOCK(sp
), data
, size
);
60 socket_seek(krb5_storage
* sp
, off_t offset
, int whence
)
62 return lseek(SOCK(sp
), offset
, whence
);
66 socket_trunc(krb5_storage
* sp
, off_t offset
)
68 if (ftruncate(SOCK(sp
), offset
) == -1)
74 socket_sync(krb5_storage
* sp
)
76 if (fsync(SOCK(sp
)) == -1)
82 socket_free(krb5_storage
* sp
)
84 int save_errno
= errno
;
85 if (rk_IS_SOCKET_ERROR(rk_closesocket(SOCK(sp
)))) {
87 errno
= rk_SOCK_ERRNO
;
97 * @return A krb5_storage on success, or NULL on out of memory error.
99 * @ingroup krb5_storage
101 * @sa krb5_storage_emem()
102 * @sa krb5_storage_from_mem()
103 * @sa krb5_storage_from_readonly_mem()
104 * @sa krb5_storage_from_data()
105 * @sa krb5_storage_from_fd()
108 KRB5_LIB_FUNCTION krb5_storage
* KRB5_LIB_CALL
109 krb5_storage_from_socket(krb5_socket_t sock_in
)
116 WSAPROTOCOL_INFO info
;
118 sock
= rk_INVALID_SOCKET
;
119 if (WSADuplicateSocket(sock_in
, GetCurrentProcessId(), &info
) == 0)
122 sock
= WSASocket( FROM_PROTOCOL_INFO
,
131 if (sock
== rk_INVALID_SOCKET
)
135 sp
= malloc(sizeof(krb5_storage
));
138 rk_closesocket(sock
);
144 sp
->data
= malloc(sizeof(socket_storage
));
145 if (sp
->data
== NULL
) {
147 rk_closesocket(sock
);
153 sp
->eof_code
= HEIM_ERR_EOF
;
155 sp
->fetch
= socket_fetch
;
156 sp
->store
= socket_store
;
157 sp
->seek
= socket_seek
;
158 sp
->trunc
= socket_trunc
;
159 sp
->fsync
= socket_sync
;
160 sp
->free
= socket_free
;
161 sp
->max_alloc
= UINT32_MAX
/64;