mirror of
https://bitbucket.org/jsuto/piler.git
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149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
/*
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* clamd.c, SJ
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <piler.h>
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int clamd_scan(char *tmpfile, char *engine, char *avinfo, struct __config *cfg){
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int s, n;
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char *p, *q, buf[MAXBUFSIZE], scan_cmd[SMALLBUFSIZE];
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struct sockaddr_un server;
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memset(avinfo, 0, SMALLBUFSIZE);
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chmod(tmpfile, 0644);
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strcpy(server.sun_path, cfg->clamd_socket);
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server.sun_family = AF_UNIX;
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if((s = socket(AF_UNIX, SOCK_STREAM, 0)) == -1){
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syslog(LOG_PRIORITY, "ERR: create socket");
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return AV_ERROR;
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}
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if(connect(s, (struct sockaddr *)&server, strlen(server.sun_path) + sizeof (server.sun_family)) == -1){
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syslog(LOG_PRIORITY, "CLAMD ERR: connect to %s", cfg->clamd_socket);
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return AV_ERROR;
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}
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/* issue the SCAN command with full path to the temporary directory */
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memset(scan_cmd, 0, SMALLBUFSIZE);
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snprintf(scan_cmd, SMALLBUFSIZE-1, "SCAN %s/%s\r\n", cfg->workdir, tmpfile);
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if(cfg->verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "%s: CLAMD CMD: %s", tmpfile, scan_cmd);
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send(s, scan_cmd, strlen(scan_cmd), 0);
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/* read CLAMD's answers */
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n = recvtimeout(s, buf, MAXBUFSIZE, TIMEOUT);
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close(s);
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if(cfg->verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "%s: CLAMD DEBUG: %d %s", tmpfile, n, buf);
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if(strcasestr(buf, CLAMD_RESP_INFECTED)){
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p = strchr(buf, ' ');
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if(p){
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q = strrchr(p, ' ');
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if(q){
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*q = '\0';
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p++;
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strncpy(avinfo, p, SMALLBUFSIZE-1);
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}
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}
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return AV_VIRUS;
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}
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return AV_OK;
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}
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int clamd_net_scan(char *tmpfile, char *engine, char *avinfo, struct __config *cfg){
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int n, psd, rc, ret=AV_OK;
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char *p, *q, buf[MAXBUFSIZE], scan_cmd[SMALLBUFSIZE];
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char port_string[6];
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struct addrinfo hints, *res;
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memset(avinfo, 0, SMALLBUFSIZE);
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chmod(tmpfile, 0644);
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if(cfg->verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "%s: trying to pass to clamd", tmpfile);
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snprintf(port_string, sizeof(port_string)-1, "%d", cfg->clamd_port);
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_UNSPEC;
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hints.ai_socktype = SOCK_STREAM;
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if((rc = getaddrinfo(cfg->clamd_addr, port_string, &hints, &res)) != 0){
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syslog(LOG_PRIORITY, "%s: getaddrinfo for '%s': %s\n", tmpfile, cfg->clamd_addr, gai_strerror(rc));
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return AV_ERROR;
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}
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if((psd = socket(res->ai_family, res->ai_socktype, res->ai_protocol)) == -1){
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syslog(LOG_PRIORITY, "%s: ERR: create socket", tmpfile);
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ret = AV_ERROR;
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goto ENDE_CLAMD;
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}
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if(connect(psd, res->ai_addr, res->ai_addrlen) == -1){
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syslog(LOG_PRIORITY, "%s: CLAMD ERR: connect to %s %d", tmpfile, cfg->clamd_addr, cfg->clamd_port);
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ret = AV_ERROR;
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goto ENDE_CLAMD;
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}
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memset(scan_cmd, 0, SMALLBUFSIZE);
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snprintf(scan_cmd, SMALLBUFSIZE-1, "SCAN %s/%s\r\n", cfg->workdir, tmpfile);
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if(cfg->verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "%s: CLAMD CMD: %s", tmpfile, scan_cmd);
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send(psd, scan_cmd, strlen(scan_cmd), 0);
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n = recvtimeout(psd, buf, MAXBUFSIZE, TIMEOUT);
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close(psd);
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if(cfg->verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "%s: CLAMD DEBUG: %d %s", tmpfile, n, buf);
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if(strcasestr(buf, CLAMD_RESP_INFECTED)){
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p = strchr(buf, ' ');
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if(p){
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q = strrchr(p, ' ');
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if(q){
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*q = '\0';
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p++;
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strncpy(avinfo, p, SMALLBUFSIZE-1);
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}
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}
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ret = AV_VIRUS;
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}
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ENDE_CLAMD:
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freeaddrinfo(res);
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return ret;
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}
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