/* returns * -1 on fatal error (shutdown) * 0 on ok * >0 errors encountered */ int command(client_conn_t *conn, int *virus) { int desc = conn->sd; struct cl_engine *engine = conn->engine; unsigned int options = conn->options; const struct optstruct *opts = conn->opts; int type = -1; /* TODO: make this enum */ int maxdirrec; int ret = 0; int flags = CLI_FTW_STD; struct scan_cb_data scandata; struct cli_ftw_cbdata data; unsigned ok, error, total; STATBUF sb; jobgroup_t *group = NULL; if (thrmgr_group_need_terminate(conn->group)) { logg("$Client disconnected while command was active\n"); if (conn->scanfd != -1) close(conn->scanfd); return 1; } thrmgr_setactiveengine(engine); data.data = &scandata; memset(&scandata, 0, sizeof(scandata)); scandata.id = conn->id; scandata.group = conn->group; scandata.odesc = desc; scandata.conn = conn; scandata.options = options; scandata.engine = engine; scandata.opts = opts; scandata.thr_pool = conn->thrpool; scandata.toplevel_path = conn->filename; switch (conn->cmdtype) { case COMMAND_SCAN: thrmgr_setactivetask(NULL, "SCAN"); type = TYPE_SCAN; break; case COMMAND_CONTSCAN: thrmgr_setactivetask(NULL, "CONTSCAN"); type = TYPE_CONTSCAN; break; case COMMAND_MULTISCAN: { int multiscan, max, alive; /* use MULTISCAN only for directories (bb #1869) */ if (STAT(conn->filename, &sb) == 0 && !S_ISDIR(sb.st_mode)) { thrmgr_setactivetask(NULL, "CONTSCAN"); type = TYPE_CONTSCAN; break; } pthread_mutex_lock(&conn->thrpool->pool_mutex); multiscan = conn->thrpool->thr_multiscan; max = conn->thrpool->thr_max; if (multiscan+1 < max) conn->thrpool->thr_multiscan = multiscan+1; else { alive = conn->thrpool->thr_alive; ret = -1; } pthread_mutex_unlock(&conn->thrpool->pool_mutex); if (ret) { /* multiscan has 1 control thread, so there needs to be at least 1 threads that is a non-multiscan controlthread to scan and make progress. */ logg("^Not enough threads for multiscan. Max: %d, Alive: %d, Multiscan: %d+1\n", max, alive, multiscan); conn_reply(conn, conn->filename, "Not enough threads for multiscan. Increase MaxThreads.", "ERROR"); return 1; } flags &= ~CLI_FTW_NEED_STAT; thrmgr_setactivetask(NULL, "MULTISCAN"); type = TYPE_MULTISCAN; scandata.group = group = thrmgr_group_new(); if (!group) { if(optget(opts, "ExitOnOOM")->enabled) return -1; else return 1; } break; } case COMMAND_MULTISCANFILE: thrmgr_setactivetask(NULL, "MULTISCANFILE"); scandata.group = NULL; scandata.type = TYPE_SCAN; scandata.thr_pool = NULL; /* TODO: check ret value */ ret = scan_callback(NULL, conn->filename, conn->filename, visit_file, &data); /* callback freed it */ conn->filename = NULL; *virus = scandata.infected; if (ret == CL_BREAK) { thrmgr_group_terminate(conn->group); return 1; } return scandata.errors > 0 ? scandata.errors : 0; case COMMAND_FILDES: thrmgr_setactivetask(NULL, "FILDES"); #ifdef HAVE_FD_PASSING if (conn->scanfd == -1) { conn_reply_error(conn, "FILDES: didn't receive file descriptor."); return 1; } else { ret = scanfd(conn, NULL, engine, options, opts, desc, 0); if (ret == CL_VIRUS) { *virus = 1; ret = 0; } else if (ret == CL_EMEM) { if(optget(opts, "ExitOnOOM")->enabled) ret = -1; else ret = 1; } else if (ret == CL_ETIMEOUT) { thrmgr_group_terminate(conn->group); ret = 1; } else ret = 0; logg("$Closed fd %d\n", conn->scanfd); close(conn->scanfd); } return ret; #else conn_reply_error(conn, "FILDES support not compiled in."); close(conn->scanfd); return 0; #endif case COMMAND_STATS: thrmgr_setactivetask(NULL, "STATS"); if (conn->group) mdprintf(desc, "%u: ", conn->id); thrmgr_printstats(desc, conn->term); return 0; case COMMAND_STREAM: thrmgr_setactivetask(NULL, "STREAM"); ret = scanstream(desc, NULL, engine, options, opts, conn->term); if (ret == CL_VIRUS) *virus = 1; if (ret == CL_EMEM) { if(optget(opts, "ExitOnOOM")->enabled) return -1; else return 1; } return 0; case COMMAND_INSTREAMSCAN: thrmgr_setactivetask(NULL, "INSTREAM"); ret = scanfd(conn, NULL, engine, options, opts, desc, 1); if (ret == CL_VIRUS) { *virus = 1; ret = 0; } else if (ret == CL_EMEM) { if(optget(opts, "ExitOnOOM")->enabled) ret = -1; else ret = 1; } else if (ret == CL_ETIMEOUT) { thrmgr_group_terminate(conn->group); ret = 1; } else ret = 0; if (ftruncate(conn->scanfd, 0) == -1) { /* not serious, we're going to close it and unlink it anyway */ logg("*ftruncate failed: %d\n", errno); } close(conn->scanfd); conn->scanfd = -1; cli_unlink(conn->filename); return ret; default: logg("!Invalid command distpached: %d\n", conn->cmdtype); return 1; } scandata.type = type; maxdirrec = optget(opts, "MaxDirectoryRecursion")->numarg; if (optget(opts, "FollowDirectorySymlinks")->enabled) flags |= CLI_FTW_FOLLOW_DIR_SYMLINK; if (optget(opts, "FollowFileSymlinks")->enabled) flags |= CLI_FTW_FOLLOW_FILE_SYMLINK; if(!optget(opts, "CrossFilesystems")->enabled) if(STAT(conn->filename, &sb) == 0) scandata.dev = sb.st_dev; ret = cli_ftw(conn->filename, flags, maxdirrec ? maxdirrec : INT_MAX, scan_callback, &data, scan_pathchk); if (ret == CL_EMEM) { if(optget(opts, "ExitOnOOM")->enabled) return -1; else return 1; } if (scandata.group && type == TYPE_MULTISCAN) { thrmgr_group_waitforall(group, &ok, &error, &total); pthread_mutex_lock(&conn->thrpool->pool_mutex); conn->thrpool->thr_multiscan--; pthread_mutex_unlock(&conn->thrpool->pool_mutex); } else { error = scandata.errors; total = scandata.total; ok = total - error - scandata.infected; } if (ok + error == total && (error != total)) { if (conn_reply_single(conn, conn->filename, "OK") == -1) ret = CL_ETIMEOUT; } *virus = total - (ok + error); if (ret == CL_ETIMEOUT) thrmgr_group_terminate(conn->group); return error; }
int scanstream(int odesc, unsigned long int *scanned, const struct cl_engine *engine, unsigned int options, const struct optstruct *opts, char term) { int ret, sockfd, acceptd; int tmpd, bread, retval, firsttimeout, timeout, btread; unsigned int port = 0, portscan, min_port, max_port; unsigned long int quota = 0, maxsize = 0; short bound = 0; const char *virname; char buff[FILEBUFF]; char peer_addr[32]; struct cb_context context; struct sockaddr_in server; struct sockaddr_in peer; socklen_t addrlen; char *tmpname; min_port = optget(opts, "StreamMinPort")->numarg; max_port = optget(opts, "StreamMaxPort")->numarg; /* search for a free port to bind to */ port = cli_rndnum(max_port - min_port); bound = 0; for (portscan = 0; portscan < 1000; portscan++) { port = (port - 1) % (max_port - min_port + 1); memset((char *) &server, 0, sizeof(server)); server.sin_family = AF_INET; server.sin_port = htons(min_port + port); server.sin_addr.s_addr = htonl(INADDR_ANY); if((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) continue; if(bind(sockfd, (struct sockaddr *) &server, (socklen_t)sizeof(struct sockaddr_in)) == -1) closesocket(sockfd); else { bound = 1; break; } } port += min_port; timeout = optget(opts, "ReadTimeout")->numarg; firsttimeout = optget(opts, "CommandReadTimeout")->numarg; if(!bound) { logg("!ScanStream: Can't find any free port.\n"); mdprintf(odesc, "Can't find any free port. ERROR%c", term); return -1; } else { if (listen(sockfd, 1) == -1) { logg("!ScanStream: listen() error on socket. Error returned is %s.\n", strerror(errno)); closesocket(sockfd); return -1; } if(mdprintf(odesc, "PORT %u%c", port, term) <= 0) { logg("!ScanStream: error transmitting port.\n"); closesocket(sockfd); return -1; } } retval = poll_fd(sockfd, firsttimeout, 0); if (!retval || retval == -1) { const char *reason = !retval ? "timeout" : "poll"; mdprintf(odesc, "Accept %s. ERROR%c", reason, term); logg("!ScanStream %u: accept %s.\n", port, reason); closesocket(sockfd); return -1; } addrlen = sizeof(peer); if((acceptd = accept(sockfd, (struct sockaddr *) &peer, (socklen_t *)&addrlen)) == -1) { closesocket(sockfd); mdprintf(odesc, "accept() ERROR%c", term); logg("!ScanStream %u: accept() failed.\n", port); return -1; } *peer_addr = '\0'; inet_ntop(peer.sin_family, &peer.sin_addr, peer_addr, sizeof(peer_addr)); logg("*Accepted connection from %s on port %u, fd %d\n", peer_addr, port, acceptd); if(cli_gentempfd(optget(opts, "TemporaryDirectory")->strarg, &tmpname, &tmpd)) { shutdown(sockfd, 2); closesocket(sockfd); closesocket(acceptd); mdprintf(odesc, "cli_gentempfd() failed. ERROR%c", term); logg("!ScanStream(%s@%u): Can't create temporary file.\n", peer_addr, port); return -1; } quota = maxsize = optget(opts, "StreamMaxLength")->numarg; while((retval = poll_fd(acceptd, timeout, 0)) == 1) { /* only read up to max */ btread = (maxsize && (quota < sizeof(buff))) ? quota : sizeof(buff); if (!btread) { logg("^ScanStream(%s@%u): Size limit reached (max: %lu)\n", peer_addr, port, maxsize); break; /* Scan what we have */ } bread = recv(acceptd, buff, btread, 0); if(bread <= 0) break; quota -= bread; if(writen(tmpd, buff, bread) != bread) { shutdown(sockfd, 2); closesocket(sockfd); closesocket(acceptd); mdprintf(odesc, "Temporary file -> write ERROR%c", term); logg("!ScanStream(%s@%u): Can't write to temporary file.\n", peer_addr, port); close(tmpd); if(!optget(opts, "LeaveTemporaryFiles")->enabled) unlink(tmpname); free(tmpname); return -1; } } switch(retval) { case 0: /* timeout */ mdprintf(odesc, "read timeout ERROR%c", term); logg("!ScanStream(%s@%u): read timeout.\n", peer_addr, port); break; case -1: mdprintf(odesc, "read poll ERROR%c", term); logg("!ScanStream(%s@%u): read poll failed.\n", peer_addr, port); break; } if(retval == 1) { lseek(tmpd, 0, SEEK_SET); thrmgr_setactivetask(peer_addr, NULL); context.filename = peer_addr; context.virsize = 0; context.scandata = NULL; ret = cl_scandesc_callback(tmpd, &virname, scanned, engine, options, &context); thrmgr_setactivetask(NULL, NULL); } else { ret = -1; } close(tmpd); if(!optget(opts, "LeaveTemporaryFiles")->enabled) unlink(tmpname); free(tmpname); closesocket(acceptd); closesocket(sockfd); if(ret == CL_VIRUS) { if(context.virsize && optget(opts, "ExtendedDetectionInfo")->enabled) { mdprintf(odesc, "stream: %s(%s:%llu) FOUND%c", virname, context.virhash, context.virsize, term); logg("stream(%s@%u): %s(%s:%llu) FOUND\n", peer_addr, port, virname, context.virhash, context.virsize); } else { mdprintf(odesc, "stream: %s FOUND%c", virname, term); logg("stream(%s@%u): %s FOUND\n", peer_addr, port, virname); } virusaction("stream", virname, opts); } else if(ret != CL_CLEAN) { if(retval == 1) { mdprintf(odesc, "stream: %s ERROR%c", cl_strerror(ret), term); logg("stream(%s@%u): %s ERROR\n", peer_addr, port, cl_strerror(ret)); } } else { mdprintf(odesc, "stream: OK%c", term); if(logok) logg("stream(%s@%u): OK\n", peer_addr, port); } return ret; }
int scan_callback(STATBUF *sb, char *filename, const char *msg, enum cli_ftw_reason reason, struct cli_ftw_cbdata *data) { struct scan_cb_data *scandata = data->data; const char *virname = NULL; int ret; int type = scandata->type; struct cb_context context; /* detect disconnected socket, * this should NOT detect half-shutdown sockets (SHUT_WR) */ if (send(scandata->conn->sd, &ret, 0, 0) == -1 && errno != EINTR) { logg("$Client disconnected while command was active!\n"); thrmgr_group_terminate(scandata->conn->group); if (reason == visit_file) free(filename); return CL_BREAK; } if (thrmgr_group_need_terminate(scandata->conn->group)) { logg("^Client disconnected while scanjob was active\n"); if (reason == visit_file) free(filename); return CL_BREAK; } scandata->total++; switch (reason) { case error_mem: if (msg) logg("!Memory allocation failed during cli_ftw() on %s\n", msg); else logg("!Memory allocation failed during cli_ftw()\n"); scandata->errors++; return CL_EMEM; case error_stat: conn_reply_errno(scandata->conn, msg, "lstat() failed:"); logg("^lstat() failed on: %s\n", msg); scandata->errors++; return CL_SUCCESS; case warning_skipped_dir: logg("^Directory recursion limit reached, skipping %s\n", msg); return CL_SUCCESS; case warning_skipped_link: logg("$Skipping symlink: %s\n", msg); return CL_SUCCESS; case warning_skipped_special: if (msg == scandata->toplevel_path) conn_reply(scandata->conn, msg, "Not supported file type", "ERROR"); logg("*Not supported file type: %s\n", msg); return CL_SUCCESS; case visit_directory_toplev: return CL_SUCCESS; case visit_file: break; } /* check whether the file is excluded */ #ifdef C_LINUX if(procdev && sb && (sb->st_dev == procdev)) { free(filename); return CL_SUCCESS; } #endif if(sb && sb->st_size == 0) { /* empty file */ if (msg == scandata->toplevel_path) conn_reply_single(scandata->conn, filename, "Empty file"); free(filename); return CL_SUCCESS; } if (type == TYPE_MULTISCAN) { client_conn_t *client_conn = (client_conn_t *) calloc(1, sizeof(struct client_conn_tag)); if(client_conn) { client_conn->scanfd = -1; client_conn->sd = scandata->odesc; client_conn->filename = filename; client_conn->cmdtype = COMMAND_MULTISCANFILE; client_conn->term = scandata->conn->term; client_conn->options = scandata->options; client_conn->opts = scandata->opts; client_conn->group = scandata->group; if(cl_engine_addref(scandata->engine)) { logg("!cl_engine_addref() failed\n"); free(filename); free(client_conn); return CL_EMEM; } else { client_conn->engine = scandata->engine; pthread_mutex_lock(&reload_mutex); client_conn->engine_timestamp = reloaded_time; pthread_mutex_unlock(&reload_mutex); if(!thrmgr_group_dispatch(scandata->thr_pool, scandata->group, client_conn, 1)) { logg("!thread dispatch failed\n"); cl_engine_free(scandata->engine); free(filename); free(client_conn); return CL_EMEM; } } } else { logg("!Can't allocate memory for client_conn\n"); scandata->errors++; free(filename); return CL_EMEM; } return CL_SUCCESS; } if (access(filename, R_OK)) { if (conn_reply(scandata->conn, filename, "Access denied.", "ERROR") == -1) { free(filename); return CL_ETIMEOUT; } logg("*Access denied: %s\n", filename); scandata->errors++; free(filename); return CL_SUCCESS; } thrmgr_setactivetask(filename, NULL); context.filename = filename; context.virsize = 0; context.scandata = scandata; ret = cl_scanfile_callback(filename, &virname, &scandata->scanned, scandata->engine, scandata->options, &context); thrmgr_setactivetask(NULL, NULL); if (thrmgr_group_need_terminate(scandata->conn->group)) { free(filename); logg("*Client disconnected while scanjob was active\n"); return ret == CL_ETIMEOUT ? ret : CL_BREAK; } if ((ret == CL_VIRUS) && (virname == NULL)) { logg("*%s: reported CL_VIRUS but no virname returned!\n", filename); ret = CL_EMEM; } if (ret == CL_VIRUS) { scandata->infected++; if (scandata->options & CL_SCAN_ALLMATCHES) { if(optget(scandata->opts, "PreludeEnable")->enabled){ prelude_logging(filename, virname, context.virhash, context.virsize); } virusaction(filename, virname, scandata->opts); } else { if (conn_reply_virus(scandata->conn, filename, virname) == -1) { free(filename); return CL_ETIMEOUT; } if(optget(scandata->opts, "PreludeEnable")->enabled){ prelude_logging(filename, virname, context.virhash, context.virsize); } if(context.virsize && optget(scandata->opts, "ExtendedDetectionInfo")->enabled) logg("~%s: %s(%s:%llu) FOUND\n", filename, virname, context.virhash, context.virsize); else logg("~%s: %s FOUND\n", filename, virname); virusaction(filename, virname, scandata->opts); } } else if (ret != CL_CLEAN) { scandata->errors++; if (conn_reply(scandata->conn, filename, cl_strerror(ret), "ERROR") == -1) { free(filename); return CL_ETIMEOUT; } logg("~%s: %s ERROR\n", filename, cl_strerror(ret)); } else if (logok) { logg("~%s: OK\n", filename); } free(filename); if(ret == CL_EMEM) /* stop scanning */ return ret; if (type == TYPE_SCAN) { /* virus -> break */ return ret; } /* keep scanning always */ return CL_SUCCESS; }
int scanfd(const client_conn_t *conn, unsigned long int *scanned, const struct cl_engine *engine, unsigned int options, const struct optstruct *opts, int odesc, int stream) { int ret, fd = conn->scanfd; const char *virname; STATBUF statbuf; struct cb_context context; char fdstr[32]; const char*reply_fdstr; UNUSEDPARAM(odesc); if (stream) { struct sockaddr_in sa; socklen_t salen = sizeof(sa); if(getpeername(conn->sd, (struct sockaddr *)&sa, &salen) || salen > sizeof(sa) || sa.sin_family != AF_INET) strncpy(fdstr, "instream(local)", sizeof(fdstr)); else snprintf(fdstr, sizeof(fdstr), "instream(%s@%u)", inet_ntoa(sa.sin_addr), ntohs(sa.sin_port)); reply_fdstr = "stream"; } else { snprintf(fdstr, sizeof(fdstr), "fd[%d]", fd); reply_fdstr = fdstr; } if(FSTAT(fd, &statbuf) == -1 || !S_ISREG(statbuf.st_mode)) { logg("%s: Not a regular file. ERROR\n", fdstr); if (conn_reply(conn, reply_fdstr, "Not a regular file", "ERROR") == -1) return CL_ETIMEOUT; return -1; } thrmgr_setactivetask(fdstr, NULL); context.filename = fdstr; context.virsize = 0; context.scandata = NULL; ret = cl_scandesc_callback(fd, &virname, scanned, engine, options, &context); thrmgr_setactivetask(NULL, NULL); if (thrmgr_group_need_terminate(conn->group)) { logg("*Client disconnected while scanjob was active\n"); return ret == CL_ETIMEOUT ? ret : CL_BREAK; } if(ret == CL_VIRUS) { if (conn_reply_virus(conn, reply_fdstr, virname) == -1) ret = CL_ETIMEOUT; if(context.virsize && optget(opts, "ExtendedDetectionInfo")->enabled) logg("%s: %s(%s:%llu) FOUND\n", fdstr, virname, context.virhash, context.virsize); else logg("%s: %s FOUND\n", fdstr, virname); virusaction(reply_fdstr, virname, opts); } else if(ret != CL_CLEAN) { if (conn_reply(conn, reply_fdstr, cl_strerror(ret), "ERROR") == -1) ret = CL_ETIMEOUT; logg("%s: %s ERROR\n", fdstr, cl_strerror(ret)); } else { if (conn_reply_single(conn, reply_fdstr, "OK") == CL_ETIMEOUT) ret = CL_ETIMEOUT; if(logok) logg("%s: OK\n", fdstr); } return ret; }
/* returns * -1 on fatal error (shutdown) * 0 on ok * >0 errors encountered */ int command(client_conn_t *conn, int *virus) { int desc = conn->sd; struct cl_engine *engine = conn->engine; unsigned int options = conn->options; const struct optstruct *opts = conn->opts; int type = -1; /* TODO: make this enum */ int maxdirrec; int ret = 0; int flags = CLI_FTW_STD; struct scan_cb_data scandata; struct cli_ftw_cbdata data; unsigned ok, error, total; jobgroup_t *group = NULL; if (thrmgr_group_need_terminate(conn->group)) { logg("$Client disconnected while command was active\n"); if (conn->scanfd != -1) close(conn->scanfd); return 1; } thrmgr_setactiveengine(engine); data.data = &scandata; memset(&scandata, 0, sizeof(scandata)); scandata.id = conn->id; scandata.group = conn->group; scandata.odesc = desc; scandata.conn = conn; scandata.options = options; scandata.engine = engine; scandata.opts = opts; scandata.thr_pool = conn->thrpool; scandata.toplevel_path = conn->filename; switch (conn->cmdtype) { case COMMAND_SCAN: thrmgr_setactivetask(NULL, "SCAN"); type = TYPE_SCAN; break; case COMMAND_CONTSCAN: thrmgr_setactivetask(NULL, "CONTSCAN"); type = TYPE_CONTSCAN; break; case COMMAND_MULTISCAN: flags &= ~CLI_FTW_NEED_STAT; thrmgr_setactivetask(NULL, "MULTISCAN"); type = TYPE_MULTISCAN; scandata.group = group = thrmgr_group_new(); if (!group) return CL_EMEM; break; case COMMAND_MULTISCANFILE: thrmgr_setactivetask(NULL, "MULTISCANFILE"); scandata.group = NULL; scandata.type = TYPE_SCAN; scandata.thr_pool = NULL; /* TODO: check ret value */ ret = scan_callback(NULL, conn->filename, conn->filename, visit_file, &data); /* callback freed it */ conn->filename = NULL; *virus = scandata.infected; if (ret == CL_BREAK) { thrmgr_group_terminate(conn->group); return CL_BREAK; } return scandata.errors > 0 ? scandata.errors : 0; case COMMAND_FILDES: thrmgr_setactivetask(NULL, "FILDES"); #ifdef HAVE_FD_PASSING if (conn->scanfd == -1) conn_reply_error(conn, "FILDES: didn't receive file descriptor."); else { ret = scanfd(conn->scanfd, conn, NULL, engine, options, opts, desc, 0); if (ret == CL_VIRUS) { *virus = 1; } else if (ret == CL_EMEM) { if(optget(opts, "ExitOnOOM")->enabled) ret = -1; } else if (ret == CL_ETIMEOUT) { thrmgr_group_terminate(conn->group); ret = 1; } else ret = 0; } logg("$Closed fd %d\n", conn->scanfd); close(conn->scanfd); return ret; #else conn_reply_error(conn, "FILDES support not compiled in."); close(conn->scanfd); return 0; #endif case COMMAND_STATS: thrmgr_setactivetask(NULL, "STATS"); if (conn->group) mdprintf(desc, "%u: ", conn->id); thrmgr_printstats(desc); return 0; case COMMAND_STREAM: thrmgr_setactivetask(NULL, "STREAM"); ret = scanstream(desc, NULL, engine, options, opts, conn->term); if (ret == CL_VIRUS) *virus = 1; if (ret == CL_EMEM) { if(optget(opts, "ExitOnOOM")->enabled) return -1; } return 0; case COMMAND_INSTREAMSCAN: thrmgr_setactivetask(NULL, "INSTREAM"); ret = scanfd(conn->scanfd, conn, NULL, engine, options, opts, desc, 1); if (ret == CL_VIRUS) { *virus = 1; } else if (ret == CL_EMEM) { if(optget(opts, "ExitOnOOM")->enabled) ret = -1; } else if (ret == CL_ETIMEOUT) { thrmgr_group_terminate(conn->group); ret = 1; } else ret = 0; if (ftruncate(conn->scanfd, 0) == -1) { /* not serious, we're going to close it and unlink it anyway */ logg("*ftruncate failed: %d\n", errno); } close(conn->scanfd); conn->scanfd = -1; cli_unlink(conn->filename); return ret; } scandata.type = type; maxdirrec = optget(opts, "MaxDirectoryRecursion")->numarg; if (optget(opts, "FollowDirectorySymlinks")->enabled) flags |= CLI_FTW_FOLLOW_DIR_SYMLINK; if (optget(opts, "FollowFileSymlinks")->enabled) flags |= CLI_FTW_FOLLOW_FILE_SYMLINK; ret = cli_ftw(conn->filename, flags, maxdirrec ? maxdirrec : INT_MAX, scan_callback, &data); if (ret == CL_EMEM) if(optget(opts, "ExitOnOOM")->enabled) return -1; if (scandata.group && conn->cmdtype == COMMAND_MULTISCAN) { thrmgr_group_waitforall(group, &ok, &error, &total); } else { error = scandata.errors; total = scandata.total; ok = total - error - scandata.infected; } if (ok + error == total && (error != total)) { if (conn_reply_single(conn, conn->filename, "OK") == -1) ret = CL_ETIMEOUT; } *virus = total - (ok + error); if (ret == CL_ETIMEOUT) thrmgr_group_terminate(conn->group); return error; }