/*
* Copyright (C) 1999 - 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 version 2 as
* published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#ifndef __OTHERS_H_LC
#define __OTHERS_H_LC
#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include "cltypes.h"
#include "clamav.h"
#include "dconf.h"
extern uint8_t cli_debug_flag, cli_leavetemps_flag;
/*
* CLI_ISCONTAINED(buf1, size1, buf2, size2) checks if buf2 is contained
* within buf1.
*
* buf1 and buf2 are pointers (or offsets) for the main buffer and the
* sub-buffer respectively, and size1/2 are their sizes
*
* The macro can be used to protect against wraps.
*/
#define CLI_ISCONTAINED(bb, bb_size, sb, sb_size) \
(bb_size > 0 && sb_size > 0 && sb_size <= bb_size \
&& sb >= bb && sb + sb_size <= bb + bb_size && sb + sb_size > bb)
#define CLI_ISCONTAINED2(bb, bb_size, sb, sb_size) \
(bb_size > 0 && sb_size >= 0 && sb_size <= bb_size \
&& sb >= bb && sb + sb_size <= bb + bb_size && sb + sb_size >= bb)
#define CLI_MAX_ALLOCATION 184549376
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h> /* for NAME_MAX */
#endif
/* Maximum filenames under various systems - njh */
#ifndef NAME_MAX /* e.g. Linux */
# ifdef MAXNAMELEN /* e.g. Solaris */
# define NAME_MAX MAXNAMELEN
# else
# ifdef FILENAME_MAX /* e.g. SCO */
# define NAME_MAX FILENAME_MAX
# else
# define NAME_MAX 256
# endif
# endif
#endif
#if NAME_MAX < 256
#undef NAME_MAX
#define NAME_MAX 256
#endif
/* internal clamav context */
typedef struct {
const char **virname;
unsigned long int *scanned;
const struct cli_matcher *root;
const struct cl_engine *engine;
const struct cl_limits *limits;
unsigned int options;
unsigned int arec;
unsigned int mrec;
unsigned int found_possibly_unwanted;
struct cli_dconf *dconf;
} cli_ctx;
#define SCAN_ARCHIVE (ctx->options & CL_SCAN_ARCHIVE)
#define SCAN_MAIL (ctx->options & CL_SCAN_MAIL)
#define SCAN_OLE2 (ctx->options & CL_SCAN_OLE2)
#define SCAN_PDF (ctx->options & CL_SCAN_PDF)
#define SCAN_HTML (ctx->options & CL_SCAN_HTML)
#define SCAN_PE (ctx->options & CL_SCAN_PE)
#define SCAN_ELF (ctx->options & CL_SCAN_ELF)
#define SCAN_ALGO (ctx->options & CL_SCAN_ALGORITHMIC)
#define DETECT_ENCRYPTED (ctx->options & CL_SCAN_BLOCKENCRYPTED)
#define BLOCKMAX (ctx->options & CL_SCAN_BLOCKMAX)
#define DETECT_BROKEN (ctx->options & CL_SCAN_BLOCKBROKEN)
#if WORDS_BIGENDIAN == 0
/* new macros from A. Melnikoff */
#define le16_to_host(v) (v)
#define le32_to_host(v) (v)
#define le64_to_host(v) (v)
#define be16_to_host(v) ((v >> 8) | ((v & 0xFF) << 8))
#define be32_to_host(v) ((v >> 24) | ((v & 0x00FF0000) >> 8) | \
((v & 0x0000FF00) << 8) | (v << 24))
#define be64_to_host(v) ((v >> 56) | ((v & 0x00FF000000000000LL) >> 40) | \
((v & 0x0000FF0000000000LL) >> 24) | \
((v & 0x000000FF00000000LL) >> 8) | \
((v & 0x00000000FF000000LL) << 8) | \
((v & 0x0000000000FF0000LL) << 24) | \
((v & 0x000000000000FF00LL) << 40) | \
(v << 56))
#else
#define le16_to_host(v) ((v >> 8) | ((v & 0xFF) << 8))
#define le32_to_host(v) ((v >> 24) | ((v & 0x00FF0000) >> 8) | \
((v & 0x0000FF00) << 8) | (v << 24))
#define le64_to_host(v) ((v >> 56) | ((v & 0x00FF000000000000LL) >> 40) | \
((v & 0x0000FF0000000000LL) >> 24) | \
((v & 0x000000FF00000000LL) >> 8) | \
((v & 0x00000000FF000000LL) << 8) | \
((v & 0x0000000000FF0000LL) << 24) | \
((v & 0x000000000000FF00LL) << 40) | \
(v << 56))
#define be16_to_host(v) (v)
#define be32_to_host(v) (v)
#define be64_to_host(v) (v)
#endif
/* used by: spin, yc (C) aCaB */
#define CLI_ROL(a,b) a = ( a << (b % (sizeof(a)<<3) )) | (a >> ( (sizeof(a)<<3) - (b % (sizeof(a)<<3 )) ) )
#define CLI_ROR(a,b) a = ( a >> (b % (sizeof(a)<<3) )) | (a << ( (sizeof(a)<<3) - (b % (sizeof(a)<<3 )) ) )
/* Implementation independent sign-extended signed right shift */
#ifdef HAVE_SAR
#define CLI_SRS(n,s) ((n)>>(s))
#else
#define CLI_SRS(n,s) (((n)>>(s)) ^ (1<<(sizeof(n)*8-1-s)) - (1<<(sizeof(n)*8-1-s)))
#endif
#define CLI_SAR(n,s) n = CLI_SRS(n,s)
#ifndef FALSE
#define FALSE (0)
#endif
#ifndef TRUE
#define TRUE (1)
#endif
#ifndef MIN
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#endif
typedef struct bitset_tag
{
unsigned char *bitset;
unsigned long length;
} bitset_t;
#ifdef __GNUC__
void cli_warnmsg(const char *str, ...) __attribute__((format(printf, 1, 2)));
#else
void cli_warnmsg(const char *str, ...);
#endif
#ifdef __GNUC__
void cli_errmsg(const char *str, ...) __attribute__((format(printf, 1, 2)));
#else
void cli_errmsg(const char *str, ...);
#endif
#ifdef __GNUC__
void cli_dbgmsg(const char *str, ...) __attribute__((format(printf, 1, 2)));
#else
void cli_dbgmsg(const char *str, ...);
#endif
void *cli_malloc(size_t nmemb);
void *cli_calloc(size_t nmemb, size_t size);
void *cli_realloc(void *ptr, size_t size);
void *cli_realloc2(void *ptr, size_t size);
char *cli_strdup(const char *s);
int cli_rmdirs(const char *dirname);
unsigned char *cli_md5digest(int desc);
char *cli_md5stream(FILE *fs, unsigned char *digcpy);
char *cli_md5file(const char *filename);
int cli_readn(int fd, void *buff, unsigned int count);
int cli_writen(int fd, const void *buff, unsigned int count);
char *cli_gentemp(const char *dir);
int cli_gentempfd(const char *dir, char **name, int *fd);
unsigned int cli_rndnum(unsigned int max);
int cli_filecopy(const char *src, const char *dest);
bitset_t *cli_bitset_init(void);
void cli_bitset_free(bitset_t *bs);
int cli_bitset_set(bitset_t *bs, unsigned long bit_offset);
int cli_bitset_test(bitset_t *bs, unsigned long bit_offset);
#if WORDS_BIGENDIAN == 0
#define cli_readint32(buff) (*(const int32_t *)(buff))
#define cli_writeint32(offset, value) (*(uint32_t *)(offset)=(uint32_t)(value))
#else
static inline int32_t cli_readint32(const char *buff)
{
int32_t ret;
ret = buff[0] & 0xff;
ret |= (buff[1] & 0xff) << 8;
ret |= (buff[2] & 0xff) << 16;
ret |= (buff[3] & 0xff) << 24;
return ret;
}
static inline void cli_writeint32(char *offset, uint32_t value)
{
offset[0] = value & 0xff;
offset[1] = (value & 0xff00) >> 8;
offset[2] = (value & 0xff0000) >> 16;
offset[3] = (value & 0xff000000) >> 24;
}
#endif /* WORDS_BIGENDIAN == 0 */
#endif