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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*
* Copyright (C) 1984 Sun Microsystems, Inc.
* Based on svc_run.c from statd which claimed:
* Modified by Jeffrey A. Uphoff, 1995, 1997-1999.
* Modified by Olaf Kirch, 1996.
*
*/
/*
* Copyright (c) 2009, Sun Microsystems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - 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.
* - Neither the name of Sun Microsystems, Inc. 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
*/
/*
* Allow svc_run to listen to other file descriptors as well
*/
/*
* This is the RPC server side idle loop.
* Wait for input, call server program.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/types.h>
#include <rpc/rpc.h>
#include "xlog.h"
#include <errno.h>
#include <time.h>
#ifdef HAVE_LIBTIRPC
#include <rpc/rpc_com.h>
#endif
void cache_set_fds(fd_set *fdset);
int cache_process_req(fd_set *readfds);
#if LONG_MAX != INT_MAX
/* bug in glibc 2.3.6 and earlier, we need
* our own svc_getreqset
*/
static void
my_svc_getreqset (fd_set *readfds)
{
fd_mask mask;
fd_mask *maskp;
int setsize;
int sock;
int bit;
setsize = _rpc_dtablesize ();
if (setsize > FD_SETSIZE)
setsize = FD_SETSIZE;
maskp = readfds->fds_bits;
for (sock = 0; sock < setsize; sock += NFDBITS)
for (mask = *maskp++;
(bit = ffsl (mask));
mask ^= (1L << (bit - 1)))
svc_getreq_common (sock + bit - 1);
}
#define svc_getreqset my_svc_getreqset
#endif
/*
* The heart of the server. A crib from libc for the most part...
*/
void
my_svc_run(void)
{
fd_set readfds;
int selret;
for (;;) {
readfds = svc_fdset;
cache_set_fds(&readfds);
selret = select(FD_SETSIZE, &readfds,
(void *) 0, (void *) 0, (struct timeval *) 0);
switch (selret) {
case -1:
if (errno == EINTR || errno == ECONNREFUSED
|| errno == ENETUNREACH || errno == EHOSTUNREACH)
continue;
xlog(L_ERROR, "my_svc_run() - select: %m");
return;
default:
selret -= cache_process_req(&readfds);
if (selret)
svc_getreqset(&readfds);
}
}
}
|
