| /* |
| * 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 <string.h> |
| // This header is required to prevent build failures coming from |
| // -Wimplicit-function-declaration with the strcasecmp function. |
| // The failures were first seen on AIX. |
| #ifndef C_WINDOWS |
| #include <strings.h> |
| #endif |
| #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 |
| static inline int32_t cli_readint32(const char *buff) { |
| int32_t ret; |
| memcpy(&ret, buff, sizeof(ret)); |
| return ret; |
| } |
| |
| static inline void cli_writeint32(char *offset, uint32_t value) { |
| memcpy(offset, &value, sizeof(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 |