1 /*
2 * Routines for controlled update/initialization of request structures.
3 *
4 * request_init() initializes its argument. Pointers and string-valued members
5 * are initialized to zero, to indicate that no lookup has been attempted.
6 *
7 * request_set() adds information to an already initialized request structure.
8 *
9 * Both functions take a variable-length name-value list.
10 *
11 * Diagnostics are reported through syslog(3).
12 *
13 * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
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14 *
15 * $FreeBSD: head/contrib/tcp_wrappers/update.c 56977 2000-02-03 10:27:03Z shin $ |
16 */
17
18#ifndef lint
19static char sccsid[] = "@(#) update.c 1.1 94/12/28 17:42:56";
20#endif
21
22/* System libraries */
23
24#include <stdio.h>
25#include <syslog.h>
26#include <string.h>
27
28/* Local stuff. */
29
30#include "mystdarg.h"
31#include "tcpd.h"
32
33/* request_fill - request update engine */
34
35static struct request_info *request_fill(request, ap)
36struct request_info *request;
37va_list ap;
38{
39 int key;
40 char *ptr;
41
42 while ((key = va_arg(ap, int)) > 0) {
43 switch (key) {
44 default:
45 tcpd_warn("request_fill: invalid key: %d", key);
46 return (request);
47 case RQ_FILE:
48 request->fd = va_arg(ap, int);
49 continue;
50 case RQ_CLIENT_SIN:
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51#ifdef INET6
52 request->client->sin = va_arg(ap, struct sockaddr *);
53#else |
54 request->client->sin = va_arg(ap, struct sockaddr_in *);
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| 55#endif |
56 continue;
57 case RQ_SERVER_SIN:
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58#ifdef INET6
59 request->server->sin = va_arg(ap, struct sockaddr *);
60#else |
61 request->server->sin = va_arg(ap, struct sockaddr_in *);
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| 62#endif |
63 continue;
64
65 /*
66 * All other fields are strings with the same maximal length.
67 */
68
69 case RQ_DAEMON:
70 ptr = request->daemon;
71 break;
72 case RQ_USER:
73 ptr = request->user;
74 break;
75 case RQ_CLIENT_NAME:
76 ptr = request->client->name;
77 break;
78 case RQ_CLIENT_ADDR:
79 ptr = request->client->addr;
80 break;
81 case RQ_SERVER_NAME:
82 ptr = request->server->name;
83 break;
84 case RQ_SERVER_ADDR:
85 ptr = request->server->addr;
86 break;
87 }
88 STRN_CPY(ptr, va_arg(ap, char *), STRING_LENGTH);
89 }
90 return (request);
91}
92
93/* request_init - initialize request structure */
94
95struct request_info *VARARGS(request_init, struct request_info *, request)
96{
97 static struct request_info default_info;
98 struct request_info *r;
99 va_list ap;
100
101 /*
102 * Initialize data members. We do not assign default function pointer
103 * members, to avoid pulling in the whole socket module when it is not
104 * really needed.
105 */
106 VASTART(ap, struct request_info *, request);
107 *request = default_info;
108 request->fd = -1;
109 strcpy(request->daemon, unknown);
110 sprintf(request->pid, "%d", getpid());
111 request->client->request = request;
112 request->server->request = request;
113 r = request_fill(request, ap);
114 VAEND(ap);
115 return (r);
116}
117
118/* request_set - update request structure */
119
120struct request_info *VARARGS(request_set, struct request_info *, request)
121{
122 struct request_info *r;
123 va_list ap;
124
125 VASTART(ap, struct request_info *, request);
126 r = request_fill(request, ap);
127 VAEND(ap);
128 return (r);
129}
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