int get_clamd_version(const struct optstruct *opts)
{
char *buff;
int len, sockd;
struct RCVLN rcv;
isremote(opts);
if((sockd = dconnect()) < 0) return 2;
recvlninit(&rcv, sockd);
if(sendln(sockd, "zVERSION", 9)) {
closesocket(sockd);
return 2;
}
while((len = recvln(&rcv, &buff, NULL))) {
if(len == -1) {
logg("!Error occoured while receiving version information.\n");
break;
}
printf("%s\n", buff);
}
closesocket(sockd);
return 0;
}
/* Sends a proper scan request to clamd and parses its replies
* This is used only in IDSESSION mode
* Returns 0 on success, 1 on hard failures, 2 on len == 0 (bb#1717) */
static int dspresult(struct client_parallel_data *c) {
const char *filename;
char *bol, *eol;
unsigned int rid;
int len;
struct SCANID **id = NULL;
struct RCVLN rcv;
recvlninit(&rcv, c->sockd);
do {
len = recvln(&rcv, &bol, &eol);
if(len < 0) return 1;
if(!len) return 2;
if((rid = atoi(bol))) {
id = &c->ids;
while(*id) {
if((*id)->id == rid) break;
id = &((*id)->next);
}
if(!*id) id = NULL;
}
if(!id) {
logg("!Bogus session id from clamd\n");
return 1;
}
filename = (*id)->file;
if(len > 7) {
char *colon = strrchr(bol, ':');
if(!colon) {
logg("!Failed to parse reply\n");
free((void *)filename);
return 1;
} else if(!memcmp(eol - 7, " FOUND", 6)) {
c->infected++;
c->printok = 0;
logg("~%s%s\n", filename, colon);
if(action) action(filename);
} else if(!memcmp(eol-7, " ERROR", 6)) {
c->errors++;
c->printok = 0;
logg("~%s%s\n", filename, colon);
}
}
free((void *)filename);
bol = (char *)*id;
*id = (*id)->next;
free(bol);
} while(rcv.cur != rcv.buf); /* clamd sends whole lines, so, on partial lines, we just assume
more data can be recv()'d with close to zero latency */
return 0;
}
int reload_clamd_database(const struct optstruct *opts)
{
char *buff;
int len, sockd;
struct RCVLN rcv;
isremote(opts);
if((sockd = dconnect()) < 0) return 2;
recvlninit(&rcv, sockd);
if(sendln(sockd, "zRELOAD", 8)) {
closesocket(sockd);
return 2;
}
if(!(len = recvln(&rcv, &buff, NULL)) || len < 10 || memcmp(buff, "RELOADING", 9)) {
logg("!Clamd did not reload the database\n");
closesocket(sockd);
return 2;
}
closesocket(sockd);
return 0;
}
/* Sends a proper scan request to clamd and parses its replies
* This is used only in non IDSESSION mode
* Returns the number of infected files or -1 on error
* NOTE: filename may be NULL for STREAM scantype. */
int dsresult(int sockd, int scantype, const char *filename, int *printok, int *errors) {
int infected = 0, len = 0, beenthere = 0;
char *bol, *eol;
struct RCVLN rcv;
STATBUF sb;
if(filename && chkpath(filename))
return 0;
recvlninit(&rcv, sockd);
switch(scantype) {
case MULTI:
case CONT:
case ALLMATCH:
if (!filename) {
logg("Filename cannot be NULL for MULTISCAN or CONTSCAN.\n");
return -1;
}
len = strlen(filename) + strlen(scancmd[scantype]) + 3;
if (!(bol = malloc(len))) {
logg("!Cannot allocate a command buffer: %s\n", strerror(errno));
return -1;
}
sprintf(bol, "z%s %s", scancmd[scantype], filename);
if(sendln(sockd, bol, len)) {
free(bol);
return -1;
}
free(bol);
break;
case STREAM:
/* NULL filename safe in send_stream() */
len = send_stream(sockd, filename);
break;
#ifdef HAVE_FD_PASSING
case FILDES:
/* NULL filename safe in send_fdpass() */
len = send_fdpass(sockd, filename);
break;
#endif
}
if(len <=0) {
*printok = 0;
if(errors)
(*errors)++;
return len;
}
while((len = recvln(&rcv, &bol, &eol))) {
if(len == -1) return -1;
beenthere = 1;
if(!filename) logg("~%s\n", bol);
if(len > 7) {
char *colon = strrchr(bol, ':');
if(colon && colon[1] != ' ') {
char *br;
*colon = 0;
br = strrchr(bol, '(');
if(br)
*br = 0;
colon = strrchr(bol, ':');
}
if(!colon) {
char * unkco = "UNKNOWN COMMAND";
if (!strncmp(bol, unkco, sizeof(unkco) - 1))
logg("clamd replied \"UNKNOWN COMMAND\". Command was %s\n",
(scantype < 0 || scantype > MAX_SCANTYPE) ? "unidentified" :
scancmd[scantype]);
else
logg("Failed to parse reply: \"%s\"\n", bol);
return -1;
} else if(!memcmp(eol - 7, " FOUND", 6)) {
*(eol - 7) = 0;
*printok = 0;
infected++;
if(filename) {
if(scantype >= STREAM) {
logg("~%s%s FOUND\n", filename, colon);
if(action) action(filename);
} else {
logg("~%s FOUND\n", bol);
*colon = '\0';
if(action)
action(bol);
}
}
} else if(!memcmp(eol-7, " ERROR", 6)) {
if(errors)
(*errors)++;
*printok = 0;
if(filename) {
if(scantype >= STREAM)
logg("~%s%s\n", filename, colon);
else
logg("~%s\n", bol);
}
}
}
}
if(!beenthere) {
if (!filename) {
logg("STDIN: noreply from clamd\n.");
return -1;
}
if(CLAMSTAT(filename, &sb) == -1) {
logg("~%s: stat() failed with %s, clamd may not be responding\n",
filename, strerror(errno));
return -1;
}
if(!S_ISDIR(sb.st_mode)) {
logg("~%s: no reply from clamd\n", filename);
return -1;
}
}
return infected;
}
/* Sends a proper scan request to clamd and parses its replies
* This is used only in non IDSESSION mode
* Returns the number of infected files or -1 on error */
int dsresult(int sockd, int scantype, const char *filename, int *printok) {
int infected = 0, len, beenthere = 0;
char *bol, *eol;
struct RCVLN rcv;
recvlninit(&rcv, sockd);
switch(scantype) {
case MULTI:
case CONT:
len = strlen(filename) + strlen(scancmd[scantype]) + 3;
if (!(bol = malloc(len))) {
logg("!Cannot allocate a command buffer: %s\n", strerror(errno));
return -1;
}
sprintf(bol, "z%s %s", scancmd[scantype], filename);
if(sendln(sockd, bol, len)) return -1;
free(bol);
break;
case STREAM:
len = send_stream(sockd, filename);
break;
#ifdef HAVE_FD_PASSING
case FILDES:
len = send_fdpass(sockd, filename);
break;
#endif
}
if(len <=0) {
*printok = 0;
return len;
}
while((len = recvln(&rcv, &bol, &eol))) {
if(len == -1) return -1;
beenthere = 1;
if(!filename) logg("~%s\n", bol);
if(len > 7) {
char *colon = strrchr(bol, ':');
if(!colon) {
logg("Failed to parse reply\n");
return -1;
} else if(!memcmp(eol - 7, " FOUND", 6)) {
*printok = 0;
infected++;
if(filename) {
if(scantype >= STREAM) {
logg("~%s%s\n", filename, colon);
if(action) action(filename);
} else {
logg("~%s\n", bol);
*colon = '\0';
if(action)
action(bol);
}
}
} else if(!memcmp(eol-7, " ERROR", 6)) {
*printok = 0;
if(filename) {
if(scantype >= STREAM)
logg("~%s%s\n", filename, colon);
else
logg("~%s\n", bol);
}
}
}
}
if(!beenthere) {
logg("~%s: no reply from clamd\n", filename ? filename : "STDIN");
return -1;
}
return infected;
}
