/*
* Copyright (C) 2002 - 2005 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.
*/
#ifndef __CLAMAV_H
#define __CLAMAV_H
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#ifdef __cplusplus
extern "C"
{
#endif
#define CL_COUNT_PRECISION 4096
/* return codes */
#define CL_CLEAN 0 /* virus not found */
#define CL_VIRUS 1 /* virus found */
#define CL_EMAXREC 10 /* recursion level limit exceeded */
#define CL_EMAXSIZE 11 /* size limit exceeded */
#define CL_EMAXFILES 12 /* files limit exceeded */
#define CL_ERAR 100 /* rar handler error */
#define CL_EZIP 101 /* zip handler error */
#define CL_EMALFZIP 102 /* malformed zip */
#define CL_EGZIP 103 /* gzip handler error */
#define CL_EBZIP 104 /* bzip2 handler error */
#define CL_EOLE2 105 /* OLE2 handler error */
#define CL_EMSCOMP 106 /* compress.exe handler error */
#define CL_EMSCAB 107 /* MS CAB module error */
#define CL_EACCES 200 /* access denied */
#define CL_ENULLARG 300 /* null argument error */
#define CL_ETMPFILE -1 /* tmpfile() failed */
#define CL_EFSYNC -2 /* fsync() failed */
#define CL_EMEM -3 /* memory allocation error */
#define CL_EOPEN -4 /* file open error */
#define CL_EMALFDB -5 /* malformed database */
#define CL_EPATSHORT -6 /* pattern too short */
#define CL_ETMPDIR -7 /* mkdir() failed */
#define CL_ECVD -8 /* not a CVD file (or broken) */
#define CL_ECVDEXTR -9 /* CVD extraction failure */
#define CL_EMD5 -10 /* MD5 verification error */
#define CL_EDSIG -11 /* digital signature verification error */
#define CL_EIO -12 /* general I/O error */
#define CL_EFORMAT -13 /* bad format or broken file */
/* scan options */
#define CL_SCAN_RAW 0
#define CL_SCAN_ARCHIVE 1
#define CL_SCAN_MAIL 2
#define CL_SCAN_DISABLERAR 4
#define CL_SCAN_OLE2 8
#define CL_SCAN_BLOCKENCRYPTED 16
#define CL_SCAN_HTML 32
#define CL_SCAN_PE 64
#define CL_SCAN_BLOCKBROKEN 128
#define CL_SCAN_MAILURL 256
#define CL_SCAN_BLOCKMAX 512
/* recommended options */
#define CL_SCAN_STDOPT (CL_SCAN_ARCHIVE | CL_SCAN_MAIL | CL_SCAN_OLE2 | CL_SCAN_HTML | CL_SCAN_PE)
/* aliases for backward compatibility */
#define CL_RAW CL_SCAN_RAW
#define CL_ARCHIVE CL_SCAN_ARCHIVE
#define CL_MAIL CL_SCAN_MAIL
#define CL_DISABLERAR CL_SCAN_DISABLERAR
#define CL_OLE2 CL_SCAN_OLE2
#define CL_ENCRYPTED CL_SCAN_BLOCKENCRYPTED
struct cli_bm_patt {
char *pattern, *virname, *offset;
const char *viralias;
unsigned int length;
unsigned short target;
struct cli_bm_patt *next;
};
struct cli_ac_patt {
short int *pattern;
unsigned int length, mindist, maxdist;
char *virname, *offset;
const char *viralias;
unsigned short int sigid, parts, partno, alt, *altn;
unsigned short type, target;
char **altc;
struct cli_ac_patt *next;
};
struct cli_ac_node {
char islast;
struct cli_ac_patt *list;
struct cli_ac_node *trans[256], *fail;
};
struct cli_md5_node {
char *virname, *viralias;
unsigned char *md5;
unsigned int size;
unsigned short fp;
struct cli_md5_node *next;
};
struct cli_meta_node {
int csize, size, method;
unsigned int crc32, fileno, encrypted, maxdepth;
char *filename, *virname;
struct cli_meta_node *next;
};
struct cl_node {
unsigned int refcount;
unsigned int maxpatlen; /* maximal length of pattern in db */
/* Extended Boyer-Moore */
int *bm_shift;
struct cli_bm_patt **bm_suffix;
/* Extended Aho-Corasick */
struct cli_ac_node *ac_root, **ac_nodetable;
unsigned int ac_partsigs, ac_nodes;
/* MD5 */
struct cli_md5_node **md5_hlist;
/* Zip metadata */
struct cli_meta_node *zip_mlist;
/* RAR metadata */
struct cli_meta_node *rar_mlist;
};
struct cl_limits {
unsigned int maxreclevel; /* maximal recursion level */
unsigned int maxfiles; /* maximal number of files to be
* scanned within an archive
*/
unsigned int maxratio; /* maximal compression ratio */
unsigned short archivememlim; /* limit memory usage for bzip2 (0/1) */
unsigned long int maxfilesize; /* files in an archive larger than
* this limit will not be scanned
*/
};
struct cl_stat {
char *dir;
int no;
struct stat *stattab;
char **statdname;
};
struct cl_cvd {
char *time; /* 2 */
int version; /* 3 */
int sigs; /* 4 */
short int fl; /* 5 */
char *md5; /* 6 */
char *dsig; /* 7 */
char *builder; /* 8 */
int stime; /* 9 */
};
/* file scanning */
extern int cl_scanbuff(const char *buffer, unsigned int length, const char **virname, const struct cl_node *root);
extern int cl_scandesc(int desc, const char **virname, unsigned long int *scanned, const struct cl_node *root, const struct cl_limits *limits, unsigned int options);
extern int cl_scanfile(const char *filename, const char **virname, unsigned long int *scanned, const struct cl_node *root, const struct cl_limits *limits, unsigned int options);
/* software versions */
extern int cl_retflevel(void);
extern const char *cl_retver(void);
/* database */
extern int cl_loaddb(const char *filename, struct cl_node **root, unsigned int *signo);
extern int cl_loaddbdir(const char *dirname, struct cl_node **root, unsigned int *signo);
extern const char *cl_retdbdir(void);
extern struct cl_node *cl_dup(struct cl_node *root);
/* CVD */
extern struct cl_cvd *cl_cvdhead(const char *file);
extern struct cl_cvd *cl_cvdparse(const char *head);
extern int cl_cvdverify(const char *file);
extern void cl_cvdfree(struct cl_cvd *cvd);
/* data dir stat functions */
extern int cl_statinidir(const char *dirname, struct cl_stat *dbstat);
extern int cl_statchkdir(const struct cl_stat *dbstat);
extern int cl_statfree(struct cl_stat *dbstat);
/* enable debug information */
extern void cl_debug(void);
extern void cl_settempdir(const char *dir, short leavetemps);
extern int cl_build(struct cl_node *root);
extern void cl_free(struct cl_node *root);
extern const char *cl_strerror(int clerror);
extern const char *cl_perror(int clerror); /* deprecated */
#ifdef __cplusplus
};
#endif
#endif