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 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 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 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