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/*
* Copyright (C) 2002 - 2004 Tomasz Kojm <tkojm@clamav.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
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#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h> |
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#include <sys/time.h> |
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#include <pthread.h>
#include <time.h>
#include <signal.h> |
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#include <errno.h> |
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#include "cfgparser.h" |
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#include "others.h"
#include "defaults.h"
#include "scanner.h"
#include "server.h"
#include "clamuko.h"
#include "tests.h"
#include "session.h" |
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#include "str.h" /* libclamav */ |
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#include "clamav.h" |
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#include "output.h" |
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#include "memory.h" |
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#define CMD1 "SCAN"
#define CMD2 "RAWSCAN"
#define CMD3 "QUIT" /* deprecated */
#define CMD4 "RELOAD"
#define CMD5 "PING"
#define CMD6 "CONTSCAN"
#define CMD7 "VERSION"
#define CMD8 "STREAM"
#define CMD9 "SESSION"
#define CMD10 "END"
#define CMD11 "SHUTDOWN"
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pthread_mutex_t ctime_mutex = PTHREAD_MUTEX_INITIALIZER; |
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int command(int desc, const struct cl_node *root, const struct cl_limits *limits, int options, const struct cfgstruct *copt, int timeout) |
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{
char buff[1025]; |
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int bread, opt, ret, retval; |
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struct cfgstruct *cpt; |
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retval = poll_fd(desc, timeout); |
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switch (retval) {
case 0: /* timeout */
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; |
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} |
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while((bread = read(desc, buff, 1024)) == -1 && errno == EINTR);
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if(!bread)
return 0;
if(bread < 0) { |
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logg("!Command parser: read() failed.\n");
/* at least try to display this error message */ |
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/* mdprintf(desc, "ERROR: Command parser: read() failed.\n"); */ |
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return -1;
}
buff[bread] = 0; |
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cli_chomp(buff); |
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if(!strncmp(buff, CMD1, strlen(CMD1))) { /* SCAN */
scan(buff + strlen(CMD1) + 1, NULL, root, limits, options, copt, desc, 0);
} else if(!strncmp(buff, CMD2, strlen(CMD2))) { /* RAWSCAN */ |
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opt = options & ~CL_SCAN_ARCHIVE; |
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scan(buff + strlen(CMD2) + 1, NULL, root, NULL, opt, copt, desc, 0);
} else if(!strncmp(buff, CMD3, strlen(CMD3))) { /* QUIT */ |
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return COMMAND_SHUTDOWN; |
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} else if(!strncmp(buff, CMD4, strlen(CMD4))) { /* RELOAD */
mdprintf(desc, "RELOADING\n");
return COMMAND_RELOAD;
} else if(!strncmp(buff, CMD5, strlen(CMD5))) { /* PING */
mdprintf(desc, "PONG\n");
} else if(!strncmp(buff, CMD6, strlen(CMD6))) { /* CONTSCAN */
scan(buff + strlen(CMD6) + 1, NULL, root, limits, options, copt, desc, 1);
} else if(!strncmp(buff, CMD7, strlen(CMD7))) { /* VERSION */ |
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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); |
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} else if(!strncmp(buff, CMD8, strlen(CMD8))) { /* STREAM */
scanstream(desc, NULL, root, limits, options, copt);
} else if(!strncmp(buff, CMD9, strlen(CMD9))) { /* SESSION */
do { |
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if(!is_fd_connected(desc)) { |
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logg("SESSION: Client disconnected without END\n"); |
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return 0;
}
ret = command(desc, root, limits, options, copt, -1); |
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} while(!ret);
switch(ret) { |
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case COMMAND_SHUTDOWN: |
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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))) { /* END */
return COMMAND_END;
} else if(!strncmp(buff, CMD11, strlen(CMD11))) { /* SHUTDOWN */ |
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return COMMAND_SHUTDOWN; |
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} else {
mdprintf(desc, "UNKNOWN COMMAND\n");
}
return 0; /* no error and no 'special' command executed */
} |