#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <pthread.h>
#include <time.h>
#include <signal.h>
#include <errno.h>
#include "cfgparser.h"
#include "others.h"
#include "defaults.h"
#include "scanner.h"
#include "server.h"
#include "clamuko.h"
#include "session.h"
#include "str.h"
#include "clamav.h"
#include "output.h"
#include "memory.h"
#define CMD1 "SCAN"
#define CMD2 "RAWSCAN"
#define CMD3 "QUIT"
#define CMD4 "RELOAD"
#define CMD5 "PING"
#define CMD6 "CONTSCAN"
#define CMD7 "VERSION"
#define CMD8 "STREAM"
#define CMD9 "SESSION"
#define CMD10 "END"
#define CMD11 "SHUTDOWN"
pthread_mutex_t ctime_mutex = PTHREAD_MUTEX_INITIALIZER;
int command(int desc, const struct cl_node *root, const struct cl_limits *limits, int options, const struct cfgstruct *copt, int timeout)
{
char buff[1025];
int bread, opt, ret, retval;
struct cfgstruct *cpt;
retval = poll_fd(desc, timeout);
switch (retval) {
case 0:
mdprintf(desc, "ERROR\n");
logg("!Command: command timeout.\n");
return -1;
case -1:
mdprintf(desc, "ERROR\n");
logg("!Command: poll_fd failed.\n");
return -1;
}
while((bread = read(desc, buff, 1024)) == -1 && errno == EINTR);
if(!bread)
return 0;
if(bread < 0) {
logg("!Command parser: read() failed.\n");
return -1;
}
buff[bread] = 0;
cli_chomp(buff);
if(!strncmp(buff, CMD1, strlen(CMD1))) {
scan(buff + strlen(CMD1) + 1, NULL, root, limits, options, copt, desc, 0);
} else if(!strncmp(buff, CMD2, strlen(CMD2))) {
opt = options & ~CL_SCAN_ARCHIVE;
scan(buff + strlen(CMD2) + 1, NULL, root, NULL, opt, copt, desc, 0);
} else if(!strncmp(buff, CMD3, strlen(CMD3))) {
return COMMAND_SHUTDOWN;
} else if(!strncmp(buff, CMD4, strlen(CMD4))) {
mdprintf(desc, "RELOADING\n");
return COMMAND_RELOAD;
} else if(!strncmp(buff, CMD5, strlen(CMD5))) {
mdprintf(desc, "PONG\n");
} else if(!strncmp(buff, CMD6, strlen(CMD6))) {
scan(buff + strlen(CMD6) + 1, NULL, root, limits, options, copt, desc, 1);
} else if(!strncmp(buff, CMD7, strlen(CMD7))) {
const char *dbdir;
char *path;
struct cl_cvd *daily;
if((cpt = cfgopt(copt, "DatabaseDirectory")) || (cpt = cfgopt(copt, "DataDirectory")))
dbdir = cpt->strarg;
else
dbdir = cl_retdbdir();
if(!(path = mmalloc(strlen(dbdir) + 11))) {
mdprintf(desc, "Memory allocation error - SHUTDOWN forced\n");
return COMMAND_SHUTDOWN;
}
sprintf(path, "%s/daily.cvd", dbdir);
if((daily = cl_cvdhead(path))) {
time_t t = (time_t) daily->stime;
pthread_mutex_lock(&ctime_mutex);
mdprintf(desc, "ClamAV "VERSION"/%d/%s", daily->version, ctime(&t));
pthread_mutex_unlock(&ctime_mutex);
cl_cvdfree(daily);
} else {
mdprintf(desc, "ClamAV "VERSION"\n");
}
free(path);
} else if(!strncmp(buff, CMD8, strlen(CMD8))) {
scanstream(desc, NULL, root, limits, options, copt);
} else if(!strncmp(buff, CMD9, strlen(CMD9))) {
do {
if(!is_fd_connected(desc)) {
logg("SESSION: Client disconnected without END\n");
return 0;
}
ret = command(desc, root, limits, options, copt, -1);
} while(!ret);
switch(ret) {
case COMMAND_SHUTDOWN:
mdprintf(desc, "SESSION TERMINATED (SHUTDOWN)\n");
break;
case COMMAND_RELOAD:
mdprintf(desc, "SESSION TERMINATED (DATABASE RELOADING)\n");
break;
case COMMAND_END:
mdprintf(desc, "BYE\n");
break;
default:
mdprintf(desc, "SESSION TERMINATED (INTERNAL ERROR)\n");
break;
}
return ret;
} else if(!strncmp(buff, CMD10, strlen(CMD10))) {
return COMMAND_END;
} else if(!strncmp(buff, CMD11, strlen(CMD11))) {
return COMMAND_SHUTDOWN;
} else {
mdprintf(desc, "UNKNOWN COMMAND\n");
}
return 0;
}