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
|
/*
* MUSCLE SmartCard Development ( http://www.linuxnet.com )
*
* Copyright (C) 1999-2002
* David Corcoran <corcoran@linuxnet.com>
* Copyright (C) 2002-2010
* Ludovic Rousseau <ludovic.rousseau@free.fr>
*
* $Id: dyn_unix.c 5047 2010-06-29 14:39:24Z rousseau $
*/
/**
* @file
* @brief This abstracts dynamic library loading functions and timing.
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#if defined(HAVE_DLFCN_H) && !defined(HAVE_DL_H) && !defined(__APPLE__)
#include <dlfcn.h>
#include <stdlib.h>
#include "misc.h"
#include "pcsclite.h"
#include "debuglog.h"
#include "dyn_generic.h"
INTERNAL int DYN_LoadLibrary(void **pvLHandle, char *pcLibrary)
{
*pvLHandle = NULL;
#ifndef PCSCLITE_STATIC_DRIVER
*pvLHandle = dlopen(pcLibrary, RTLD_LAZY);
if (*pvLHandle == NULL)
{
Log3(PCSC_LOG_CRITICAL, "%s: %s", pcLibrary, dlerror());
return SCARD_F_UNKNOWN_ERROR;
}
#endif
return SCARD_S_SUCCESS;
}
INTERNAL int DYN_CloseLibrary(void **pvLHandle)
{
#ifndef PCSCLITE_STATIC_DRIVER
int ret;
ret = dlclose(*pvLHandle);
*pvLHandle = NULL;
if (ret)
{
Log2(PCSC_LOG_CRITICAL, "%s", dlerror());
return SCARD_F_UNKNOWN_ERROR;
}
#endif
return SCARD_S_SUCCESS;
}
INTERNAL int DYN_GetAddress(void *pvLHandle, void **pvFHandle, const char *pcFunction)
{
char pcFunctionName[256];
int rv = SCARD_S_SUCCESS;
/* Some platforms might need a leading underscore for the symbol */
(void)snprintf(pcFunctionName, sizeof(pcFunctionName), "_%s", pcFunction);
*pvFHandle = NULL;
#ifndef PCSCLITE_STATIC_DRIVER
*pvFHandle = dlsym(pvLHandle, pcFunctionName);
/* Failed? Try again without the leading underscore */
if (*pvFHandle == NULL)
*pvFHandle = dlsym(pvLHandle, pcFunction);
if (*pvFHandle == NULL)
{
Log3(PCSC_LOG_CRITICAL, "%s: %s", pcFunction, dlerror());
rv = SCARD_F_UNKNOWN_ERROR;
}
#endif
return rv;
}
#endif /* HAVE_DLFCN_H && !HAVE_DL_H && !__APPLE__ */
|
