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/*
Unix SMB/CIFS implementation.
charset defines
Copyright (C) Andrew Tridgell 2001
Copyright (C) Jelmer Vernooij 2002
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 3 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, see <http://www.gnu.org/licenses/>.
*/
/* This is a public header file that is installed as part of Samba.
* If you remove any functions or change their signature, update
* the so version number. */
#ifndef __CHARSET_H__
#define __CHARSET_H__
#include <talloc.h>
/* this defines the charset types used in samba */
typedef enum {CH_UTF16LE=0, CH_UTF16=0, CH_UNIX, CH_DOS, CH_UTF8, CH_UTF16BE, CH_UTF16MUNGED} charset_t;
#define NUM_CHARSETS 7
/*
* SMB UCS2 (16-bit unicode) internal type.
* smb_ucs2_t is *always* in little endian format.
*/
typedef uint16_t smb_ucs2_t;
#ifdef WORDS_BIGENDIAN
#define UCS2_SHIFT 8
#else
#define UCS2_SHIFT 0
#endif
/* turn a 7 bit character into a ucs2 character */
#define UCS2_CHAR(c) ((c) << UCS2_SHIFT)
/*
* for each charset we have a function that pulls from that charset to
* a ucs2 buffer, and a function that pushes to a ucs2 buffer
* */
struct charset_functions {
const char *name;
size_t (*pull)(void *, const char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft);
size_t (*push)(void *, const char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft);
bool samba_internal_charset;
};
/* this type is used for manipulating unicode codepoints */
typedef uint32_t codepoint_t;
#define INVALID_CODEPOINT ((codepoint_t)-1)
/* generic iconv conversion structure */
typedef struct smb_iconv_s {
size_t (*direct)(void *cd, const char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft);
size_t (*pull)(void *cd, const char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft);
size_t (*push)(void *cd, const char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft);
void *cd_direct, *cd_pull, *cd_push;
char *from_name, *to_name;
} *smb_iconv_t;
/* string manipulation flags */
#define STR_TERMINATE 1
#define STR_UPPER 2
#define STR_ASCII 4
#define STR_UNICODE 8
#define STR_NOALIGN 16
#define STR_NO_RANGE_CHECK 32
#define STR_LEN8BIT 64
#define STR_TERMINATE_ASCII 128 /* only terminate if ascii */
#define STR_LEN_NOTERM 256 /* the length field is the unterminated length */
struct loadparm_context;
struct smb_iconv_handle;
size_t ucs2_align(const void *base_ptr, const void *p, int flags);
/**
return the number of bytes occupied by a buffer in CH_UTF16 format
the result includes the null termination
**/
size_t utf16_len(const void *buf);
/**
return the number of bytes occupied by a buffer in CH_UTF16 format
the result includes the null termination
limited by 'n' bytes
**/
size_t utf16_len_n(const void *src, size_t n);
char *strchr_m(const char *s, char c);
/**
* Calculate the number of units (8 or 16-bit, depending on the
* destination charset), that would be needed to convert the input
* string which is expected to be in in src_charset encoding to the
* destination charset (which should be a unicode charset).
*/
size_t strlen_m_ext_handle(struct smb_iconv_handle *ic,
const char *s, charset_t src_charset, charset_t dst_charset);
size_t strlen_m_ext(const char *s, charset_t src_charset, charset_t dst_charset);
size_t strlen_m_ext_term(const char *s, charset_t src_charset,
charset_t dst_charset);
size_t strlen_m_ext_term_null(const char *s,
charset_t src_charset,
charset_t dst_charset);
size_t strlen_m(const char *s);
size_t strlen_m_term(const char *s);
size_t strlen_m_term_null(const char *s);
char *alpha_strcpy(char *dest, const char *src, const char *other_safe_chars, size_t maxlength);
char *talloc_alpha_strcpy(TALLOC_CTX *mem_ctx,
const char *src,
const char *other_safe_chars);
void string_replace_m(char *s, char oldc, char newc);
bool strcsequal(const char *s1,const char *s2);
bool strequal_m(const char *s1, const char *s2);
int strncasecmp_m(const char *s1, const char *s2, size_t n);
int strncasecmp_m_handle(struct smb_iconv_handle *iconv_handle,
const char *s1, const char *s2, size_t n);
bool next_token(const char **ptr,char *buff, const char *sep, size_t bufsize);
int strcasecmp_m_handle(struct smb_iconv_handle *iconv_handle,
const char *s1, const char *s2);
int strcasecmp_m(const char *s1, const char *s2);
size_t count_chars_m(const char *s, char c);
char *strupper_talloc(TALLOC_CTX *ctx, const char *src);
char *talloc_strdup_upper(TALLOC_CTX *ctx, const char *src);
char *strupper_talloc_n_handle(struct smb_iconv_handle *iconv_handle,
TALLOC_CTX *ctx, const char *src, size_t n);
char *strupper_talloc_n(TALLOC_CTX *ctx, const char *src, size_t n);
char *strlower_talloc_handle(struct smb_iconv_handle *iconv_handle,
TALLOC_CTX *ctx, const char *src);
char *strlower_talloc(TALLOC_CTX *ctx, const char *src);
bool strhasupper(const char *string);
bool strhaslower_handle(struct smb_iconv_handle *ic,
const char *string);
bool strhaslower(const char *string);
bool strhasupper_handle(struct smb_iconv_handle *ic,
const char *string);
char *strrchr_m(const char *s, char c);
char *strchr_m(const char *s, char c);
char *strstr_m(const char *src, const char *findstr);
bool push_ascii_talloc(TALLOC_CTX *ctx, char **dest, const char *src, size_t *converted_size);
bool push_ucs2_talloc(TALLOC_CTX *ctx, smb_ucs2_t **dest, const char *src, size_t *converted_size);
bool push_utf8_talloc(TALLOC_CTX *ctx, char **dest, const char *src, size_t *converted_size);
bool pull_ascii_talloc(TALLOC_CTX *ctx, char **dest, const char *src, size_t *converted_size);
bool pull_ucs2_talloc(TALLOC_CTX *ctx, char **dest, const smb_ucs2_t *src, size_t *converted_size);
bool pull_utf8_talloc(TALLOC_CTX *ctx, char **dest, const char *src, size_t *converted_size);
ssize_t push_string(void *dest, const char *src, size_t dest_len, int flags);
ssize_t pull_string(char *dest, const void *src, size_t dest_len, size_t src_len, int flags);
bool convert_string_talloc(TALLOC_CTX *ctx,
charset_t from, charset_t to,
void const *src, size_t srclen,
void *dest, size_t *converted_size);
bool convert_string(charset_t from, charset_t to,
void const *src, size_t srclen,
void *dest, size_t destlen,
size_t *converted_size);
bool convert_string_error(charset_t from, charset_t to,
void const *src, size_t srclen,
void *dest, size_t destlen,
size_t *converted_size);
struct smb_iconv_handle *get_iconv_handle(void);
struct smb_iconv_handle *get_iconv_testing_handle(TALLOC_CTX *mem_ctx,
const char *dos_charset,
const char *unix_charset,
bool use_builtin_handlers);
struct smb_iconv_handle *reinit_iconv_handle(TALLOC_CTX *mem_ctx,
const char *dos_charset,
const char *unix_charset);
void free_iconv_handle(void);
smb_iconv_t get_conv_handle(struct smb_iconv_handle *ic,
charset_t from, charset_t to);
const char *charset_name(struct smb_iconv_handle *ic, charset_t ch);
codepoint_t next_codepoint_ext(const char *str, size_t len,
charset_t src_charset, size_t *size);
codepoint_t next_codepoint(const char *str, size_t *size);
ssize_t push_codepoint(char *str, codepoint_t c);
/* codepoints */
codepoint_t next_codepoint_handle_ext(struct smb_iconv_handle *ic,
const char *str, size_t len,
charset_t src_charset,
size_t *size);
codepoint_t next_codepoint_handle(struct smb_iconv_handle *ic,
const char *str, size_t *size);
ssize_t push_codepoint_handle(struct smb_iconv_handle *ic,
char *str, codepoint_t c);
codepoint_t toupper_m(codepoint_t val);
codepoint_t tolower_m(codepoint_t val);
bool islower_m(codepoint_t val);
bool isupper_m(codepoint_t val);
int codepoint_cmpi(codepoint_t c1, codepoint_t c2);
/* Iconv convenience functions */
struct smb_iconv_handle *smb_iconv_handle_reinit(TALLOC_CTX *mem_ctx,
const char *dos_charset,
const char *unix_charset,
bool use_builtin_handlers,
struct smb_iconv_handle *old_ic);
bool convert_string_handle(struct smb_iconv_handle *ic,
charset_t from, charset_t to,
void const *src, size_t srclen,
void *dest, size_t destlen, size_t *converted_size);
bool convert_string_error_handle(struct smb_iconv_handle *ic,
charset_t from, charset_t to,
void const *src, size_t srclen,
void *dest, size_t destlen,
size_t *converted_size);
bool convert_string_talloc_handle(TALLOC_CTX *ctx,
struct smb_iconv_handle *ic,
charset_t from, charset_t to,
void const *src, size_t srclen,
void *dest, size_t *converted_size);
/* iconv */
smb_iconv_t smb_iconv_open(const char *tocode, const char *fromcode);
int smb_iconv_close(smb_iconv_t cd);
size_t smb_iconv(smb_iconv_t cd,
const char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft);
smb_iconv_t smb_iconv_open_ex(TALLOC_CTX *mem_ctx, const char *tocode,
const char *fromcode, bool use_builtin_handlers);
void smb_init_locale(void);
/* The following definitions come from util_unistr_w.c */
size_t strlen_w(const smb_ucs2_t *src);
size_t strnlen_w(const smb_ucs2_t *src, size_t max);
smb_ucs2_t *strchr_w(const smb_ucs2_t *s, smb_ucs2_t c);
smb_ucs2_t *strchr_wa(const smb_ucs2_t *s, char c);
smb_ucs2_t *strrchr_w(const smb_ucs2_t *s, smb_ucs2_t c);
smb_ucs2_t *strnrchr_w(const smb_ucs2_t *s, smb_ucs2_t c, unsigned int n);
smb_ucs2_t *strstr_w(const smb_ucs2_t *s, const smb_ucs2_t *ins);
bool strlower_w(smb_ucs2_t *s);
bool strupper_w(smb_ucs2_t *s);
int strcasecmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b);
int strncasecmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b, size_t len);
int strcmp_wa(const smb_ucs2_t *a, const char *b);
smb_ucs2_t toupper_w(smb_ucs2_t v);
#endif /* __CHARSET_H__ */
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