/* 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 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;
}
static const char* parse_dispatch_cmd(client_conn_t *conn, struct fd_buf *buf, size_t *ppos, int *error, const struct optstruct *opts, int readtimeout)
{
const char *cmd = NULL;
int rc;
size_t cmdlen;
char term;
int oldstyle;
size_t pos = *ppos;
/* Parse & dispatch commands */
while ((conn->mode == MODE_COMMAND) &&
(cmd = get_cmd(buf, pos, &cmdlen, &term, &oldstyle)) != NULL) {
const char *argument;
enum commands cmdtype;
if (conn->group && oldstyle) {
logg("$Received oldstyle command inside IDSESSION: %s\n", cmd);
conn_reply_error(conn, "Only nCMDS\\n and zCMDS\\0 are accepted inside IDSESSION.");
*error = 1;
break;
}
cmdtype = parse_command(cmd, &argument, oldstyle);
logg("$got command %s (%u, %u), argument: %s\n",
cmd, (unsigned)cmdlen, (unsigned)cmdtype, argument ? argument : "");
if (cmdtype == COMMAND_FILDES) {
if (buf->buffer + buf->off <= cmd + strlen("FILDES\n")) {
/* we need the extra byte from recvmsg */
conn->mode = MODE_WAITANCILL;
buf->mode = MODE_WAITANCILL;
/* put term back */
buf->buffer[pos + cmdlen] = term;
cmdlen = 0;
logg("$RECVTH: mode -> MODE_WAITANCILL\n");
break;
}
/* eat extra \0 for controlmsg */
cmdlen++;
logg("$RECVTH: FILDES command complete\n");
}
conn->term = term;
buf->term = term;
if ((rc = execute_or_dispatch_command(conn, cmdtype, argument)) < 0) {
logg("!Command dispatch failed\n");
if(rc == -1 && optget(opts, "ExitOnOOM")->enabled) {
pthread_mutex_lock(&exit_mutex);
progexit = 1;
pthread_mutex_unlock(&exit_mutex);
}
*error = 1;
}
if (thrmgr_group_need_terminate(conn->group)) {
logg("$Receive thread: have to terminate group\n");
*error = CL_ETIMEOUT;
break;
}
if (*error || !conn->group || rc) {
if (rc && thrmgr_group_finished(conn->group, EXIT_OK)) {
logg("$Receive thread: closing conn (FD %d), group finished\n", conn->sd);
/* if there are no more active jobs */
shutdown(conn->sd, 2);
closesocket(conn->sd);
buf->fd = -1;
conn->group = NULL;
} else if (conn->mode != MODE_STREAM) {
logg("$mode -> MODE_WAITREPLY\n");
/* no more commands are accepted */
conn->mode = MODE_WAITREPLY;
/* Stop monitoring this FD, it will be closed either
* by us, or by the scanner thread.
* Never close a file descriptor that is being
* monitored by poll()/select() from another thread,
* because this can lead to subtle bugs such as:
* Other thread closes file descriptor -> POLLHUP is
* set, but the poller thread doesn't wake up yet.
* Another client opens a connection and sends some
* data. If the socket reuses the previous file descriptor,
* then POLLIN is set on the file descriptor too.
* When poll() wakes up it sees POLLIN | POLLHUP
* and thinks that the client has sent some data,
* and closed the connection, so clamd closes the
* connection in turn resulting in a bug.
*
* If we wouldn't have poll()-ed the file descriptor
* we closed in another thread, but rather made sure
* that we don't put a FD that we're about to close
* into poll()'s list of watched fds; then POLLHUP
* would be set, but the file descriptor would stay
* open, until we wake up from poll() and close it.
* Thus a new connection won't be able to reuse the
* same FD, and there is no bug.
* */
buf->fd = -1;
}
}
/* we received a command, set readtimeout */
time(&buf->timeout_at);
buf->timeout_at += readtimeout;
pos += cmdlen+1;
if (conn->mode == MODE_STREAM) {
/* TODO: this doesn't belong here */
buf->dumpname = conn->filename;
buf->dumpfd = conn->scanfd;
logg("$Receive thread: INSTREAM: %s fd %u\n", buf->dumpname, buf->dumpfd);
}
if (conn->mode != MODE_COMMAND) {
logg("$Breaking command loop, mode is no longer MODE_COMMAND\n");
break;
}
conn->id++;
}
*ppos = pos;
buf->mode = conn->mode;
buf->id = conn->id;
buf->group = conn->group;
buf->quota = conn->quota;
if (conn->scanfd != -1 && conn->scanfd != buf->dumpfd) {
logg("$Unclaimed file descriptor received, closing: %d\n", conn->scanfd);
close(conn->scanfd);
/* protocol error */
conn_reply_error(conn, "PROTOCOL ERROR: ancillary data sent without FILDES.");
*error = 1;
return NULL;
}
if (!*error) {
/* move partial command to beginning of buffer */
if (pos < buf->off) {
memmove (buf->buffer, &buf->buffer[pos], buf->off - pos);
buf->off -= pos;
} else
buf->off = 0;
if (buf->off)
logg("$Moved partial command: %lu\n", (unsigned long)buf->off);
else
logg("$Consumed entire command\n");
/* adjust pos to account for the buffer shuffle */
pos = 0;
}
*ppos = pos;
return cmd;
}
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;
}
/* 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;
}
