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
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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))))
86 errno = rk_SOCK_ERRNO;
94 * @return A krb5_storage on success, or NULL on out of memory error.
96 * @ingroup krb5_storage
98 * @sa krb5_storage_emem()
99 * @sa krb5_storage_from_mem()
100 * @sa krb5_storage_from_readonly_mem()
101 * @sa krb5_storage_from_data()
102 * @sa krb5_storage_from_fd()
105 KRB5_LIB_FUNCTION krb5_storage * KRB5_LIB_CALL
106 krb5_storage_from_socket(krb5_socket_t sock_in)
113 WSAPROTOCOL_INFO info;
115 sock = rk_INVALID_SOCKET;
116 if (WSADuplicateSocket(sock_in, GetCurrentProcessId(), &info) == 0)
119 sock = WSASocket( FROM_PROTOCOL_INFO,
128 if (sock == rk_INVALID_SOCKET)
132 sp = malloc(sizeof(krb5_storage));
135 rk_closesocket(sock);
141 sp->data = malloc(sizeof(socket_storage));
142 if (sp->data == NULL) {
144 rk_closesocket(sock);
150 sp->eof_code = HEIM_ERR_EOF;
152 sp->fetch = socket_fetch;
153 sp->store = socket_store;
154 sp->seek = socket_seek;
155 sp->trunc = socket_trunc;
156 sp->fsync = socket_sync;
157 sp->free = socket_free;
158 sp->max_alloc = UINT_MAX/8;