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
|
#include "config.h"
#if defined(HAVE_SYS_UUID_H)
# include <sys/types.h>
# include <sys/uuid.h>
#endif
#if defined(HAVE_UUID_UUID_H)
# include <uuid/uuid.h>
#elif defined(HAVE_UUID_H)
# include <uuid.h>
#endif
#include "sq.h"
int MakeUUID(char *location)
{
#if defined(HAVE_UUID_CREATE) && !defined(HAVE_UUIDGEN) && !defined(HAVE_UUID_GENERATE)
size_t len= 16; /* 128 bits */
uuid_t *uuid;
uuid_create(&uuid);
uuid_make(uuid, UUID_MAKE_V1);
uuid_export(uuid, UUID_FMT_BIN, (void **)&location, &len);
uuid_destroy(uuid);
#else
uuid_t uuid;
# if defined(HAVE_UUIDGEN)
uuidgen(&uuid, 1);
# elif defined(HAVE_UUID_GENERATE)
uuid_generate(uuid);
# endif
memcpy((void *)location, (void *)&uuid, sizeof(uuid));
#endif
return 1;
}
#if defined(__linux__)
# include <setjmp.h>
# include <signal.h>
static sigjmp_buf env;
static void sigsegvHandler(int signal)
{
siglongjmp(env, 1);
}
int sqUUIDInit(void)
{
/* check if we get a segmentation fault when using libuuid */
int pluginAvailable= 0;
struct sigaction originalAction;
uuid_t uuid;
if (!sigsetjmp(env, 1))
{
struct sigaction newAction;
newAction.sa_handler= sigsegvHandler;
newAction.sa_flags= 0;
sigemptyset(&newAction.sa_mask);
if (sigaction(SIGSEGV, &newAction, &originalAction))
/* couldn't change the signal handler: give up now */
return 0;
else
pluginAvailable= MakeUUID((char *)&uuid);
}
sigaction(SIGSEGV, &originalAction, NULL);
return pluginAvailable;
}
#else /* !__linux__ */
int sqUUIDInit(void)
{
return 1;
}
#endif /* !__linux__ */
int sqUUIDShutdown(void)
{
return 1;
}
|
