1 files changed, 299 insertions, 0 deletions
diff --git a/lib/util/charset/charset.h b/lib/util/charset/charset.h
new file mode 100644
index 0000000..12dc348
--- /dev/null
+++ b/lib/util/charset/charset.h
@@ -0,0 +1,299 @@
+/*
+   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>
+#include <stdbool.h>
+#include <stdint.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,
+	/* The number of distinct character sets. */
+	NUM_CHARSETS
+} charset_t;
+
+/*
+ * 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
+**/
+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
+**/
+size_t utf16_null_terminated_len(const void *buf);
+
+/**
+return the number of bytes occupied by a buffer in CH_UTF16 format
+limited by 'n' bytes
+**/
+size_t utf16_len_n(const void *src, size_t n);
+
+/**
+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_null_terminated_len_n(const void *src, size_t n);
+
+unsigned char *talloc_utf16_strlendup(TALLOC_CTX *mem_ctx, const char *str, size_t len);
+unsigned char *talloc_utf16_strdup(TALLOC_CTX *mem_ctx, const char *str);
+unsigned char *talloc_utf16_strndup(TALLOC_CTX *mem_ctx, const char *str, 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 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 utf8_check(const char *input, size_t maxlen,
+		size_t *byte_len,
+		size_t *char_len,
+		size_t *utf16_len);
+
+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__ */