1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/*
* Copyright (c) 1997 - 2004 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "krb5_locl.h"
#include "store-int.h"
RCSID("$Id: store_fd.c,v 1.13 2006/06/30 21:23:19 lha Exp $");
typedef struct fd_storage {
int fd;
} fd_storage;
#define FD(S) (((fd_storage*)(S)->data)->fd)
static ssize_t
fd_fetch(krb5_storage * sp, void *data, size_t size)
{
return net_read(FD(sp), data, size);
}
static ssize_t
fd_store(krb5_storage * sp, const void *data, size_t size)
{
return net_write(FD(sp), data, size);
}
static off_t
fd_seek(krb5_storage * sp, off_t offset, int whence)
{
return lseek(FD(sp), offset, whence);
}
static void
fd_free(krb5_storage * sp)
{
close(FD(sp));
}
krb5_storage * KRB5_LIB_FUNCTION
krb5_storage_from_fd(int fd)
{
krb5_storage *sp;
fd = dup(fd);
if (fd < 0)
return NULL;
sp = malloc(sizeof(krb5_storage));
if (sp == NULL) {
close(fd);
return NULL;
}
sp->data = malloc(sizeof(fd_storage));
if (sp->data == NULL) {
close(fd);
free(sp);
return NULL;
}
sp->flags = 0;
sp->eof_code = HEIM_ERR_EOF;
FD(sp) = fd;
sp->fetch = fd_fetch;
sp->store = fd_store;
sp->seek = fd_seek;
sp->free = fd_free;
return sp;
}
|
