1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
3*0Sstevel@tonic-gate * Use is subject to license terms.
4*0Sstevel@tonic-gate */
5*0Sstevel@tonic-gate
6*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
7*0Sstevel@tonic-gate
8*0Sstevel@tonic-gate /*
9*0Sstevel@tonic-gate * Routines for controlled update/initialization of request structures.
10*0Sstevel@tonic-gate *
11*0Sstevel@tonic-gate * request_init() initializes its argument. Pointers and string-valued members
12*0Sstevel@tonic-gate * are initialized to zero, to indicate that no lookup has been attempted.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * request_set() adds information to an already initialized request structure.
15*0Sstevel@tonic-gate *
16*0Sstevel@tonic-gate * Both functions take a variable-length name-value list.
17*0Sstevel@tonic-gate *
18*0Sstevel@tonic-gate * Diagnostics are reported through syslog(3).
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate
23*0Sstevel@tonic-gate #ifndef lint
24*0Sstevel@tonic-gate static char sccsid[] = "@(#) update.c 1.1 94/12/28 17:42:56";
25*0Sstevel@tonic-gate #endif
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate /* System libraries */
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdio.h>
30*0Sstevel@tonic-gate #include <stdlib.h>
31*0Sstevel@tonic-gate #include <unistd.h>
32*0Sstevel@tonic-gate #include <syslog.h>
33*0Sstevel@tonic-gate #include <string.h>
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate /* Local stuff. */
36*0Sstevel@tonic-gate
37*0Sstevel@tonic-gate #include "mystdarg.h"
38*0Sstevel@tonic-gate #include "tcpd.h"
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate /* request_fill - request update engine */
41*0Sstevel@tonic-gate
request_fill(request,ap)42*0Sstevel@tonic-gate static struct request_info *request_fill(request, ap)
43*0Sstevel@tonic-gate struct request_info *request;
44*0Sstevel@tonic-gate va_list ap;
45*0Sstevel@tonic-gate {
46*0Sstevel@tonic-gate int key;
47*0Sstevel@tonic-gate char *ptr;
48*0Sstevel@tonic-gate
49*0Sstevel@tonic-gate while ((key = va_arg(ap, int)) > 0) {
50*0Sstevel@tonic-gate switch (key) {
51*0Sstevel@tonic-gate default:
52*0Sstevel@tonic-gate tcpd_warn("request_fill: invalid key: %d", key);
53*0Sstevel@tonic-gate return (request);
54*0Sstevel@tonic-gate case RQ_FILE:
55*0Sstevel@tonic-gate request->fd = va_arg(ap, int);
56*0Sstevel@tonic-gate continue;
57*0Sstevel@tonic-gate case RQ_CLIENT_SIN:
58*0Sstevel@tonic-gate request->client->sin = va_arg(ap, struct sockaddr_gen *);
59*0Sstevel@tonic-gate continue;
60*0Sstevel@tonic-gate case RQ_SERVER_SIN:
61*0Sstevel@tonic-gate request->server->sin = va_arg(ap, struct sockaddr_gen *);
62*0Sstevel@tonic-gate continue;
63*0Sstevel@tonic-gate
64*0Sstevel@tonic-gate /*
65*0Sstevel@tonic-gate * All other fields are strings with the same maximal length.
66*0Sstevel@tonic-gate */
67*0Sstevel@tonic-gate
68*0Sstevel@tonic-gate case RQ_DAEMON:
69*0Sstevel@tonic-gate ptr = request->daemon;
70*0Sstevel@tonic-gate break;
71*0Sstevel@tonic-gate case RQ_USER:
72*0Sstevel@tonic-gate ptr = request->user;
73*0Sstevel@tonic-gate break;
74*0Sstevel@tonic-gate case RQ_CLIENT_NAME:
75*0Sstevel@tonic-gate ptr = request->client->name;
76*0Sstevel@tonic-gate break;
77*0Sstevel@tonic-gate case RQ_CLIENT_ADDR:
78*0Sstevel@tonic-gate ptr = request->client->addr;
79*0Sstevel@tonic-gate break;
80*0Sstevel@tonic-gate case RQ_SERVER_NAME:
81*0Sstevel@tonic-gate ptr = request->server->name;
82*0Sstevel@tonic-gate break;
83*0Sstevel@tonic-gate case RQ_SERVER_ADDR:
84*0Sstevel@tonic-gate ptr = request->server->addr;
85*0Sstevel@tonic-gate break;
86*0Sstevel@tonic-gate }
87*0Sstevel@tonic-gate STRN_CPY(ptr, va_arg(ap, char *), STRING_LENGTH);
88*0Sstevel@tonic-gate }
89*0Sstevel@tonic-gate return (request);
90*0Sstevel@tonic-gate }
91*0Sstevel@tonic-gate
92*0Sstevel@tonic-gate /* request_init - initialize request structure */
93*0Sstevel@tonic-gate
VARARGS(request_init,struct request_info *,request)94*0Sstevel@tonic-gate struct request_info *VARARGS(request_init, struct request_info *, request)
95*0Sstevel@tonic-gate {
96*0Sstevel@tonic-gate static struct request_info default_info;
97*0Sstevel@tonic-gate struct request_info *r;
98*0Sstevel@tonic-gate va_list ap;
99*0Sstevel@tonic-gate
100*0Sstevel@tonic-gate /*
101*0Sstevel@tonic-gate * Initialize data members. We do not assign default function pointer
102*0Sstevel@tonic-gate * members, to avoid pulling in the whole socket module when it is not
103*0Sstevel@tonic-gate * really needed.
104*0Sstevel@tonic-gate */
105*0Sstevel@tonic-gate VASTART(ap, struct request_info *, request);
106*0Sstevel@tonic-gate *request = default_info;
107*0Sstevel@tonic-gate request->fd = -1;
108*0Sstevel@tonic-gate strcpy(request->daemon, unknown);
109*0Sstevel@tonic-gate sprintf(request->pid, "%d", getpid());
110*0Sstevel@tonic-gate request->client->request = request;
111*0Sstevel@tonic-gate request->server->request = request;
112*0Sstevel@tonic-gate r = request_fill(request, ap);
113*0Sstevel@tonic-gate VAEND(ap);
114*0Sstevel@tonic-gate return (r);
115*0Sstevel@tonic-gate }
116*0Sstevel@tonic-gate
117*0Sstevel@tonic-gate /* request_set - update request structure */
118*0Sstevel@tonic-gate
VARARGS(request_set,struct request_info *,request)119*0Sstevel@tonic-gate struct request_info *VARARGS(request_set, struct request_info *, request)
120*0Sstevel@tonic-gate {
121*0Sstevel@tonic-gate struct request_info *r;
122*0Sstevel@tonic-gate va_list ap;
123*0Sstevel@tonic-gate
124*0Sstevel@tonic-gate VASTART(ap, struct request_info *, request);
125*0Sstevel@tonic-gate r = request_fill(request, ap);
126*0Sstevel@tonic-gate VAEND(ap);
127*0Sstevel@tonic-gate return (r);
128*0Sstevel@tonic-gate }
129