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
|
/*
* Copyright (C) 2007 by CERN/IT/GD/ITR
* All rights reserved
*/
#ifndef lint
static char sccsid[] = "@(#)$RCSfile: Cns_getgrpmap.c,v $ $Revision: 1.1 $ $Date: 2007/12/13 06:15:14 $ CERN IT-GD/ITR Jean-Philippe Baud";
#endif /* not lint */
/* Cns_getgrpmap - get all existing groups from virtual gid table */
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#if defined(_WIN32)
#include <winsock2.h>
#else
#include <unistd.h>
#include <netinet/in.h>
#endif
#include "marshall.h"
#include "Cns_api.h"
#include "Cns.h"
#include "serrno.h"
int DLL_DECL
Cns_getgrpmap(int *nbentries, struct Cns_groupinfo **grp_entries)
{
int c;
char func[16];
gid_t gid;
int msglen;
char *q;
char *rbp;
char repbuf[4];
char *sbp;
char sendbuf[REQBUFSZ];
struct Cns_api_thread_info *thip;
uid_t uid;
strcpy (func, "Cns_getgrpmap");
if (Cns_apiinit (&thip))
return (-1);
uid = geteuid();
gid = getegid();
#if defined(_WIN32)
if (uid < 0 || gid < 0) {
Cns_errmsg (func, NS053);
serrno = SENOMAPFND;
return (-1);
}
#endif
if (! nbentries || ! grp_entries) {
serrno = EFAULT;
return (-1);
}
/* Build request header */
sbp = sendbuf;
marshall_LONG (sbp, CNS_MAGIC);
marshall_LONG (sbp, CNS_GETGRPMAP);
q = sbp; /* save pointer. The next field will be updated */
msglen = 3 * LONGSIZE;
marshall_LONG (sbp, msglen);
/* Build request body */
marshall_LONG (sbp, uid);
marshall_LONG (sbp, gid);
msglen = sbp - sendbuf;
marshall_LONG (q, msglen); /* update length field */
c = send2nsdx (NULL, NULL, sendbuf, msglen, repbuf, sizeof(repbuf),
(void **)grp_entries, nbentries);
if (c == 0) {
rbp = repbuf;
unmarshall_LONG (rbp, *nbentries);
if (*nbentries == 0) {
*grp_entries = NULL;
return (0);
}
}
return (c);
}
|
