129 lines
3.1 KiB
C
129 lines
3.1 KiB
C
/* $NetBSD: update.c,v 1.9 2012/03/21 10:10:37 matt Exp $ */
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/*
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* Routines for controlled update/initialization of request structures.
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*
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* request_init() initializes its argument. Pointers and string-valued members
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* are initialized to zero, to indicate that no lookup has been attempted.
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*
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* request_set() adds information to an already initialized request structure.
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*
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* Both functions take a variable-length name-value list.
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*
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* Diagnostics are reported through syslog(3).
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*
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* Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#) update.c 1.1 94/12/28 17:42:56";
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#else
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__RCSID("$NetBSD: update.c,v 1.9 2012/03/21 10:10:37 matt Exp $");
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#endif
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#endif
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/* System libraries */
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#include <stdio.h>
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#include <syslog.h>
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#include <string.h>
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#include <unistd.h>
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/* Local stuff. */
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#include "mystdarg.h"
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#include "tcpd.h"
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static struct request_info *request_fill(struct request_info *, va_list);
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/* request_fill - request update engine */
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static struct request_info *
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request_fill(struct request_info *request, va_list ap)
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{
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int key;
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char *ptr;
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while ((key = va_arg(ap, int)) > 0) {
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switch (key) {
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default:
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tcpd_warn("request_fill: invalid key: %d", key);
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return (request);
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case RQ_FILE:
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request->fd = va_arg(ap, int);
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continue;
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case RQ_CLIENT_SIN:
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request->client->sin = va_arg(ap, struct sockaddr *);
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continue;
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case RQ_SERVER_SIN:
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request->server->sin = va_arg(ap, struct sockaddr *);
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continue;
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/*
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* All other fields are strings with the same maximal length.
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*/
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case RQ_DAEMON:
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ptr = request->daemon;
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break;
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case RQ_USER:
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ptr = request->user;
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break;
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case RQ_CLIENT_NAME:
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ptr = request->client->name;
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break;
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case RQ_CLIENT_ADDR:
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ptr = request->client->addr;
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break;
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case RQ_SERVER_NAME:
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ptr = request->server->name;
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break;
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case RQ_SERVER_ADDR:
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ptr = request->server->addr;
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break;
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}
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strlcpy(ptr, va_arg(ap, char *), STRING_LENGTH);
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}
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return (request);
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}
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/* request_init - initialize request structure */
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struct request_info *VARARGS(request_init, struct request_info *, request)
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{
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static struct request_info default_info;
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struct request_info *r;
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va_list ap;
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/*
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* Initialize data members. We do not assign default function pointer
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* members, to avoid pulling in the whole socket module when it is not
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* really needed.
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*/
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VASTART(ap, struct request_info *, request);
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*request = default_info;
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request->fd = -1;
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(void)strlcpy(request->daemon, unknown, sizeof(request->daemon));
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(void)snprintf(request->pid, sizeof(request->pid), "%d", getpid());
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request->client->request = request;
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request->server->request = request;
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r = request_fill(request, ap);
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VAEND(ap);
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return (r);
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}
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/* request_set - update request structure */
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struct request_info *VARARGS(request_set, struct request_info *, request)
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{
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struct request_info *r;
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va_list ap;
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VASTART(ap, struct request_info *, request);
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r = request_fill(request, ap);
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VAEND(ap);
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return (r);
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}
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