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/*
* Copyright (C) 2002 - 2005 Tomasz Kojm <tkojm@clamav.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#ifdef _MSC_VER
#include <windows.h>
#include <winsock.h>
#endif
#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif
#ifdef BUILD_CLAMD
#include <stdio.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/types.h>
#ifndef C_WINDOWS
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#endif
#include <string.h>
#include "shared/optparser.h"
#include "shared/output.h"
#include "notify.h"
#ifndef C_WINDOWS
#define closesocket(s) close(s)
#endif
int notify(const char *cfgfile)
{
char buff[20];
#ifndef C_WINDOWS
struct sockaddr_un server;
#endif
#ifdef HAVE_GETADDRINFO
struct addrinfo hints, *res;
char port[6];
const char *addr;
int ret;
#else
struct sockaddr_in server2;
struct hostent *he;
#endif
struct optstruct *opts;
const struct optstruct *opt;
int sockd, bread;
const char *socktype;
if((opts = optparse(cfgfile, 0, NULL, 1, OPT_CLAMD, 0, NULL)) == NULL) {
logg("^Clamd was NOT notified: Can't find or parse configuration file %s\n", cfgfile);
return 1;
}
#ifndef C_WINDOWS
if((opt = optget(opts, "LocalSocket"))->enabled) {
socktype = "UNIX";
server.sun_family = AF_UNIX;
strncpy(server.sun_path, opt->strarg, sizeof(server.sun_path));
server.sun_path[sizeof(server.sun_path)-1]='\0';
if((sockd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
logg("^Clamd was NOT notified: Can't create socket endpoint for %s\n", opt->strarg);
perror("socket()");
optfree(opts);
return 1;
}
if(connect(sockd, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
closesocket(sockd);
logg("^Clamd was NOT notified: Can't connect to clamd through %s\n", opt->strarg);
perror("connect()");
optfree(opts);
return 1;
}
} else
#endif
if((opt = optget(opts, "TCPSocket"))->enabled) {
socktype = "TCP";
#ifdef HAVE_GETADDRINFO
memset(&hints, 0, sizeof(hints));
#ifdef SUPPORT_IPv6
hints.ai_family = AF_UNSPEC;
#else
hints.ai_family = AF_INET;
#endif
hints.ai_socktype = SOCK_STREAM;
snprintf(port, 5, "%u", (unsigned int) opt->numarg);
port[5] = 0;
if((opt = optget(opts, "TCPAddr"))->enabled)
addr = opt->strarg;
else
addr = NULL;
ret = getaddrinfo(addr, port, &hints, &res);
if(ret) {
perror("getaddrinfo()");
logg("^Clamd was NOT notified: Can't resolve hostname %s\n", addr ? addr : "");
optfree(opts);
return 1;
}
if((sockd = socket(res->ai_family, SOCK_STREAM, 0)) < 0) {
perror("socket()");
logg("^Clamd was NOT notified: Can't create TCP socket\n");
optfree(opts);
freeaddrinfo(res);
return 1;
}
if(connect(sockd, res->ai_addr, res->ai_addrlen) == -1) {
perror("connect()");
closesocket(sockd);
logg("^Clamd was NOT notified: Can't connect to clamd on %s:%s\n", addr ? addr : "localhost", port);
optfree(opts);
freeaddrinfo(res);
return 1;
}
freeaddrinfo(res);
#else /* IPv4 */
if((sockd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
logg("^Clamd was NOT notified: Can't create TCP socket\n");
perror("socket()");
optfree(opts);
return 1;
}
server2.sin_family = AF_INET;
server2.sin_port = htons(opt->numarg);
if((opt = optget(opts, "TCPAddr"))->enabled) {
if((he = gethostbyname(opt->strarg)) == 0) {
perror("gethostbyname()");
logg("^Clamd was NOT notified: Can't resolve hostname '%s'\n", opt->strarg);
optfree(opts);
closesocket(sockd);
return 1;
}
server2.sin_addr = *(struct in_addr *) he->h_addr_list[0];
} else
server2.sin_addr.s_addr = inet_addr("127.0.0.1");
if(connect(sockd, (struct sockaddr *) &server2, sizeof(struct sockaddr_in)) < 0) {
closesocket(sockd);
logg("^Clamd was NOT notified: Can't connect to clamd on %s:%d\n",
inet_ntoa(server2.sin_addr), ntohs(server2.sin_port));
perror("connect()");
optfree(opts);
return 1;
}
#endif
} else {
logg("^Clamd was NOT notified: No socket specified in %s\n", cfgfile);
optfree(opts);
return 1;
}
if(send(sockd, "RELOAD", 6, 0) < 0) {
logg("^Clamd was NOT notified: Could not write to %s socket\n", socktype);
perror("write()");
closesocket(sockd);
optfree(opts);
return 1;
}
/* TODO: Handle timeout */
memset(buff, 0, sizeof(buff));
if((bread = recv(sockd, buff, sizeof(buff), 0)) > 0)
if(!strstr(buff, "RELOADING")) {
logg("^Clamd was NOT notified: Unknown answer from clamd: '%s'\n", buff);
closesocket(sockd);
optfree(opts);
return 1;
}
closesocket(sockd);
logg("Clamd successfully notified about the update.\n");
optfree(opts);
return 0;
}
#endif
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