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-rw-r--r--source4/lib/charcnv.c925
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diff --git a/source4/lib/charcnv.c b/source4/lib/charcnv.c
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+++ b/source4/lib/charcnv.c
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+/*
+ Unix SMB/CIFS implementation.
+ Character set conversion Extensions
+ Copyright (C) Igor Vergeichik <iverg@mail.ru> 2001
+ Copyright (C) Andrew Tridgell 2001
+ Copyright (C) Simo Sorce 2001
+
+ 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.
+
+*/
+#include "includes.h"
+
+/**
+ * @file
+ *
+ * @brief Character-set conversion routines built on our iconv.
+ *
+ * @note Samba's internal character set (at least in the 3.0 series)
+ * is always the same as the one for the Unix filesystem. It is
+ * <b>not</b> necessarily UTF-8 and may be different on machines that
+ * need i18n filenames to be compatible with Unix software. It does
+ * have to be a superset of ASCII. All multibyte sequences must start
+ * with a byte with the high bit set.
+ *
+ * @sa lib/iconv.c
+ */
+
+static smb_iconv_t conv_handles[NUM_CHARSETS][NUM_CHARSETS];
+
+
+/**
+ * Return the name of a charset to give to iconv().
+ **/
+static const char *charset_name(charset_t ch)
+{
+ const char *ret = NULL;
+
+ if (ch == CH_UCS2) ret = "UCS-2LE";
+ else if (ch == CH_UNIX) ret = lp_unix_charset();
+ else if (ch == CH_DOS) ret = lp_dos_charset();
+ else if (ch == CH_DISPLAY) ret = lp_display_charset();
+ else if (ch == CH_UTF8) ret = "UTF8";
+
+ if (!ret || !*ret) ret = "ASCII";
+ return ret;
+}
+
+static void lazy_initialize_conv(void)
+{
+ static int initialized = False;
+
+ if (!initialized) {
+ initialized = True;
+ load_case_tables();
+ init_iconv();
+ init_valid_table();
+ }
+}
+
+/**
+ Initialize iconv conversion descriptors.
+**/
+
+void init_iconv(void)
+{
+ int c1, c2;
+ BOOL did_reload = False;
+
+ /* so that charset_name() works we need to get the UNIX<->UCS2 going
+ first */
+ if (!conv_handles[CH_UNIX][CH_UCS2])
+ conv_handles[CH_UNIX][CH_UCS2] = smb_iconv_open("UCS-2LE", "ASCII");
+
+ if (!conv_handles[CH_UCS2][CH_UNIX])
+ conv_handles[CH_UCS2][CH_UNIX] = smb_iconv_open("ASCII", "UCS-2LE");
+
+ for (c1=0;c1<NUM_CHARSETS;c1++) {
+ for (c2=0;c2<NUM_CHARSETS;c2++) {
+ const char *n1 = charset_name((charset_t)c1);
+ const char *n2 = charset_name((charset_t)c2);
+ if (conv_handles[c1][c2] &&
+ strcmp(n1, conv_handles[c1][c2]->from_name) == 0 &&
+ strcmp(n2, conv_handles[c1][c2]->to_name) == 0)
+ continue;
+
+ did_reload = True;
+
+ if (conv_handles[c1][c2])
+ smb_iconv_close(conv_handles[c1][c2]);
+
+ conv_handles[c1][c2] = smb_iconv_open(n2,n1);
+ if (conv_handles[c1][c2] == (smb_iconv_t)-1) {
+ DEBUG(0,("Conversion from %s to %s not supported\n",
+ charset_name((charset_t)c1), charset_name((charset_t)c2)));
+ conv_handles[c1][c2] = NULL;
+ }
+ }
+ }
+
+ if (did_reload) {
+ init_valid_table();
+ }
+}
+
+/**
+ * Convert string from one encoding to another, making error checking etc
+ *
+ * @param src pointer to source string (multibyte or singlebyte)
+ * @param srclen length of the source string in bytes
+ * @param dest pointer to destination string (multibyte or singlebyte)
+ * @param destlen maximal length allowed for string
+ * @returns the number of bytes occupied in the destination
+ **/
+ssize_t convert_string(charset_t from, charset_t to,
+ void const *src, size_t srclen,
+ void *dest, size_t destlen)
+{
+ size_t i_len, o_len;
+ size_t retval;
+ const char* inbuf = (const char*)src;
+ char* outbuf = (char*)dest;
+ smb_iconv_t descriptor;
+
+ if (srclen == (size_t)-1)
+ srclen = strlen(src)+1;
+
+ lazy_initialize_conv();
+
+ descriptor = conv_handles[from][to];
+
+ if (descriptor == (smb_iconv_t)-1 || descriptor == (smb_iconv_t)0) {
+ /* conversion not supported, use as is */
+ size_t len = MIN(srclen,destlen);
+ memcpy(dest,src,len);
+ return len;
+ }
+
+ i_len=srclen;
+ o_len=destlen;
+ retval = smb_iconv(descriptor, &inbuf, &i_len, &outbuf, &o_len);
+ if(retval==(size_t)-1) {
+ const char *reason="unknown error";
+ switch(errno) {
+ case EINVAL:
+ reason="Incomplete multibyte sequence";
+ break;
+ case E2BIG:
+ reason="No more room";
+ DEBUG(0, ("convert_string: Required %d, available %d\n",
+ srclen, destlen));
+ /* we are not sure we need srclen bytes,
+ may be more, may be less.
+ We only know we need more than destlen
+ bytes ---simo */
+ break;
+ case EILSEQ:
+ reason="Illegal multibyte sequence";
+ break;
+ }
+ /* smb_panic(reason); */
+ }
+ return destlen-o_len;
+}
+
+/**
+ * Convert between character sets, allocating a new buffer for the result.
+ *
+ * @param srclen length of source buffer.
+ * @param dest always set at least to NULL
+ * @note -1 is not accepted for srclen.
+ *
+ * @returns Size in bytes of the converted string; or -1 in case of error.
+ **/
+
+ssize_t convert_string_allocate(charset_t from, charset_t to,
+ void const *src, size_t srclen, void **dest)
+{
+ size_t i_len, o_len, destlen;
+ size_t retval;
+ const char *inbuf = (const char *)src;
+ char *outbuf, *ob;
+ smb_iconv_t descriptor;
+
+ *dest = NULL;
+
+ if (src == NULL || srclen == (size_t)-1 || srclen == 0)
+ return (size_t)-1;
+
+ lazy_initialize_conv();
+
+ descriptor = conv_handles[from][to];
+
+ if (descriptor == (smb_iconv_t)-1 || descriptor == (smb_iconv_t)0) {
+ /* conversion not supported, return -1*/
+ DEBUG(3, ("convert_string_allocate: conversion not supported!\n"));
+ return -1;
+ }
+
+ destlen = MAX(srclen, 512);
+ outbuf = NULL;
+convert:
+ destlen = destlen * 2;
+ ob = (char *)realloc(outbuf, destlen);
+ if (!ob) {
+ DEBUG(0, ("convert_string_allocate: realloc failed!\n"));
+ SAFE_FREE(outbuf);
+ return (size_t)-1;
+ }
+ else
+ outbuf = ob;
+ i_len = srclen;
+ o_len = destlen;
+ retval = smb_iconv(descriptor,
+ &inbuf, &i_len,
+ &outbuf, &o_len);
+ if(retval == (size_t)-1) {
+ const char *reason="unknown error";
+ switch(errno) {
+ case EINVAL:
+ reason="Incomplete multibyte sequence";
+ break;
+ case E2BIG:
+ goto convert;
+ case EILSEQ:
+ reason="Illegal multibyte sequence";
+ break;
+ }
+ DEBUG(0,("Conversion error: %s(%s)\n",reason,inbuf));
+ /* smb_panic(reason); */
+ return (size_t)-1;
+ }
+
+ destlen = destlen - o_len;
+ *dest = (char *)Realloc(ob,destlen);
+ if (!*dest) {
+ DEBUG(0, ("convert_string_allocate: out of memory!\n"));
+ SAFE_FREE(ob);
+ return (size_t)-1;
+ }
+
+ return destlen;
+}
+
+
+/**
+ * Convert between character sets, allocating a new buffer using talloc for the result.
+ *
+ * @param srclen length of source buffer.
+ * @param dest always set at least to NULL
+ * @note -1 is not accepted for srclen.
+ *
+ * @returns Size in bytes of the converted string; or -1 in case of error.
+ **/
+ssize_t convert_string_talloc(TALLOC_CTX *ctx, charset_t from, charset_t to,
+ void const *src, size_t srclen, const void **dest)
+{
+ void *alloced_string;
+ size_t dest_len;
+ void *dst;
+
+ *dest = NULL;
+ dest_len=convert_string_allocate(from, to, src, srclen, &alloced_string);
+ if (dest_len == (size_t)-1)
+ return (size_t)-1;
+ dst = talloc(ctx, dest_len + 2);
+ /* we want to be absolutely sure that the result is terminated */
+ memcpy(dst, alloced_string, dest_len);
+ SSVAL(dst, dest_len, 0);
+ SAFE_FREE(alloced_string);
+ if (dst == NULL)
+ return -1;
+ *dest = dst;
+ return dest_len;
+}
+
+size_t unix_strupper(const char *src, size_t srclen, char *dest, size_t destlen)
+{
+ size_t size;
+ smb_ucs2_t *buffer;
+
+ size = convert_string_allocate(CH_UNIX, CH_UCS2, src, srclen,
+ (void **) &buffer);
+ if (size == -1) {
+ smb_panic("failed to create UCS2 buffer");
+ }
+ if (!strupper_w(buffer) && (dest == src)) {
+ free(buffer);
+ return srclen;
+ }
+
+ size = convert_string(CH_UCS2, CH_UNIX, buffer, size, dest, destlen);
+ free(buffer);
+ return size;
+}
+
+size_t unix_strlower(const char *src, size_t srclen, char *dest, size_t destlen)
+{
+ size_t size;
+ smb_ucs2_t *buffer;
+
+ size = convert_string_allocate(CH_UNIX, CH_UCS2, src, srclen,
+ (void **) &buffer);
+ if (size == -1) {
+ smb_panic("failed to create UCS2 buffer");
+ }
+ if (!strlower_w(buffer) && (dest == src)) {
+ free(buffer);
+ return srclen;
+ }
+ size = convert_string(CH_UCS2, CH_UNIX, buffer, size, dest, destlen);
+ free(buffer);
+ return size;
+}
+
+size_t ucs2_align(const void *base_ptr, const void *p, int flags)
+{
+ if (flags & (STR_NOALIGN|STR_ASCII))
+ return 0;
+ return PTR_DIFF(p, base_ptr) & 1;
+}
+
+
+/**
+ * Copy a string from a char* unix src to a dos codepage string destination.
+ *
+ * @return the number of bytes occupied by the string in the destination.
+ *
+ * @param flags can include
+ * <dl>
+ * <dt>STR_TERMINATE</dt> <dd>means include the null termination</dd>
+ * <dt>STR_UPPER</dt> <dd>means uppercase in the destination</dd>
+ * </dl>
+ *
+ * @param dest_len the maximum length in bytes allowed in the
+ * destination. If @p dest_len is -1 then no maximum is used.
+ **/
+ssize_t push_ascii(void *dest, const char *src, size_t dest_len, int flags)
+{
+ size_t src_len = strlen(src);
+ pstring tmpbuf;
+
+ /* treat a pstring as "unlimited" length */
+ if (dest_len == (size_t)-1)
+ dest_len = sizeof(pstring);
+
+ if (flags & STR_UPPER) {
+ pstrcpy(tmpbuf, src);
+ strupper(tmpbuf);
+ src = tmpbuf;
+ }
+
+ if (flags & (STR_TERMINATE | STR_TERMINATE_ASCII))
+ src_len++;
+
+ return convert_string(CH_UNIX, CH_DOS, src, src_len, dest, dest_len);
+}
+
+ssize_t push_ascii_fstring(void *dest, const char *src)
+{
+ return push_ascii(dest, src, sizeof(fstring), STR_TERMINATE);
+}
+
+ssize_t push_ascii_pstring(void *dest, const char *src)
+{
+ return push_ascii(dest, src, sizeof(pstring), STR_TERMINATE);
+}
+
+ssize_t push_pstring(void *dest, const char *src)
+{
+ return push_ascii(dest, src, sizeof(pstring), STR_TERMINATE);
+}
+
+/**
+ * Copy a string from a dos codepage source to a unix char* destination.
+ *
+ * The resulting string in "dest" is always null terminated.
+ *
+ * @param flags can have:
+ * <dl>
+ * <dt>STR_TERMINATE</dt>
+ * <dd>STR_TERMINATE means the string in @p src
+ * is null terminated, and src_len is ignored.</dd>
+ * </dl>
+ *
+ * @param src_len is the length of the source area in bytes.
+ * @returns the number of bytes occupied by the string in @p src.
+ **/
+ssize_t pull_ascii(char *dest, const void *src, size_t dest_len, size_t src_len, int flags)
+{
+ size_t ret;
+
+ if (dest_len == (size_t)-1)
+ dest_len = sizeof(pstring);
+
+ if (flags & STR_TERMINATE) {
+ if (src_len == (size_t)-1) {
+ src_len = strlen(src) + 1;
+ } else {
+ size_t len = strnlen(src, src_len);
+ if (len < src_len)
+ len++;
+ src_len = len;
+ }
+ }
+
+ ret = convert_string(CH_DOS, CH_UNIX, src, src_len, dest, dest_len);
+
+ if (dest_len)
+ dest[MIN(ret, dest_len-1)] = 0;
+
+ return src_len;
+}
+
+ssize_t pull_ascii_pstring(char *dest, const void *src)
+{
+ return pull_ascii(dest, src, sizeof(pstring), -1, STR_TERMINATE);
+}
+
+ssize_t pull_ascii_fstring(char *dest, const void *src)
+{
+ return pull_ascii(dest, src, sizeof(fstring), -1, STR_TERMINATE);
+}
+
+/**
+ * Copy a string from a char* src to a unicode destination.
+ *
+ * @returns the number of bytes occupied by the string in the destination.
+ *
+ * @param flags can have:
+ *
+ * <dl>
+ * <dt>STR_TERMINATE <dd>means include the null termination.
+ * <dt>STR_UPPER <dd>means uppercase in the destination.
+ * <dt>STR_NOALIGN <dd>means don't do alignment.
+ * </dl>
+ *
+ * @param dest_len is the maximum length allowed in the
+ * destination. If dest_len is -1 then no maxiumum is used.
+ **/
+ssize_t push_ucs2(const void *base_ptr, void *dest, const char *src, size_t dest_len, int flags)
+{
+ size_t len=0;
+ size_t src_len = strlen(src);
+ pstring tmpbuf;
+
+ /* treat a pstring as "unlimited" length */
+ if (dest_len == (size_t)-1)
+ dest_len = sizeof(pstring);
+
+ if (flags & STR_UPPER) {
+ pstrcpy(tmpbuf, src);
+ strupper(tmpbuf);
+ src = tmpbuf;
+ }
+
+ if (flags & STR_TERMINATE)
+ src_len++;
+
+ if (ucs2_align(base_ptr, dest, flags)) {
+ *(char *)dest = 0;
+ dest = (void *)((char *)dest + 1);
+ if (dest_len) dest_len--;
+ len++;
+ }
+
+ /* ucs2 is always a multiple of 2 bytes */
+ dest_len &= ~1;
+
+ len += convert_string(CH_UNIX, CH_UCS2, src, src_len, dest, dest_len);
+ return len;
+}
+
+
+/**
+ * Copy a string from a unix char* src to a UCS2 destination,
+ * allocating a buffer using talloc().
+ *
+ * @param dest always set at least to NULL
+ *
+ * @returns The number of bytes occupied by the string in the destination
+ * or -1 in case of error.
+ **/
+ssize_t push_ucs2_talloc(TALLOC_CTX *ctx, smb_ucs2_t **dest, const char *src)
+{
+ size_t src_len = strlen(src)+1;
+
+ *dest = NULL;
+ return convert_string_talloc(ctx, CH_UNIX, CH_UCS2, src, src_len, (const void **)dest);
+}
+
+
+/**
+ * Copy a string from a unix char* src to a UCS2 destination, allocating a buffer
+ *
+ * @param dest always set at least to NULL
+ *
+ * @returns The number of bytes occupied by the string in the destination
+ * or -1 in case of error.
+ **/
+
+ssize_t push_ucs2_allocate(smb_ucs2_t **dest, const char *src)
+{
+ size_t src_len = strlen(src)+1;
+
+ *dest = NULL;
+ return convert_string_allocate(CH_UNIX, CH_UCS2, src, src_len, (void **)dest);
+}
+
+/**
+ Copy a string from a char* src to a UTF-8 destination.
+ Return the number of bytes occupied by the string in the destination
+ Flags can have:
+ STR_TERMINATE means include the null termination
+ STR_UPPER means uppercase in the destination
+ dest_len is the maximum length allowed in the destination. If dest_len
+ is -1 then no maxiumum is used.
+**/
+
+ssize_t push_utf8(void *dest, const char *src, size_t dest_len, int flags)
+{
+ size_t src_len = strlen(src);
+ pstring tmpbuf;
+
+ /* treat a pstring as "unlimited" length */
+ if (dest_len == (size_t)-1)
+ dest_len = sizeof(pstring);
+
+ if (flags & STR_UPPER) {
+ pstrcpy(tmpbuf, src);
+ strupper(tmpbuf);
+ src = tmpbuf;
+ }
+
+ if (flags & STR_TERMINATE)
+ src_len++;
+
+ return convert_string(CH_UNIX, CH_UTF8, src, src_len, dest, dest_len);
+}
+
+ssize_t push_utf8_fstring(void *dest, const char *src)
+{
+ return push_utf8(dest, src, sizeof(fstring), STR_TERMINATE);
+}
+
+ssize_t push_utf8_pstring(void *dest, const char *src)
+{
+ return push_utf8(dest, src, sizeof(pstring), STR_TERMINATE);
+}
+
+/**
+ * Copy a string from a unix char* src to a UTF-8 destination, allocating a buffer using talloc
+ *
+ * @param dest always set at least to NULL
+ *
+ * @returns The number of bytes occupied by the string in the destination
+ **/
+
+ssize_t push_utf8_talloc(TALLOC_CTX *ctx, char **dest, const char *src)
+{
+ size_t src_len = strlen(src)+1;
+
+ *dest = NULL;
+ return convert_string_talloc(ctx, CH_UNIX, CH_UTF8, src, src_len, (const void **)dest);
+}
+
+/**
+ * Copy a string from a unix char* src to a UTF-8 destination, allocating a buffer
+ *
+ * @param dest always set at least to NULL
+ *
+ * @returns The number of bytes occupied by the string in the destination
+ **/
+
+ssize_t push_utf8_allocate(char **dest, const char *src)
+{
+ size_t src_len = strlen(src)+1;
+
+ *dest = NULL;
+ return convert_string_allocate(CH_UNIX, CH_UTF8, src, src_len, (void **)dest);
+}
+
+/**
+ Copy a string from a ucs2 source to a unix char* destination.
+ Flags can have:
+ STR_TERMINATE means the string in src is null terminated.
+ STR_NOALIGN means don't try to align.
+ if STR_TERMINATE is set then src_len is ignored if it is -1.
+ src_len is the length of the source area in bytes
+ Return the number of bytes occupied by the string in src.
+ The resulting string in "dest" is always null terminated.
+**/
+
+size_t pull_ucs2(const void *base_ptr, char *dest, const void *src, size_t dest_len, size_t src_len, int flags)
+{
+ size_t ret;
+
+ if (dest_len == (size_t)-1)
+ dest_len = sizeof(pstring);
+
+ if (ucs2_align(base_ptr, src, flags)) {
+ src = (const void *)((const char *)src + 1);
+ if (src_len > 0)
+ src_len--;
+ }
+
+ if (flags & STR_TERMINATE) {
+ if (src_len == (size_t)-1) {
+ src_len = strlen_w(src)*2 + 2;
+ } else {
+ size_t len = strnlen_w(src, src_len/2);
+ if (len < src_len/2)
+ len++;
+ src_len = len*2;
+ }
+ }
+
+ /* ucs2 is always a multiple of 2 bytes */
+ if (src_len != (size_t)-1)
+ src_len &= ~1;
+
+ ret = convert_string(CH_UCS2, CH_UNIX, src, src_len, dest, dest_len);
+ if (dest_len)
+ dest[MIN(ret, dest_len-1)] = 0;
+
+ return src_len;
+}
+
+ssize_t pull_ucs2_pstring(char *dest, const void *src)
+{
+ return pull_ucs2(NULL, dest, src, sizeof(pstring), -1, STR_TERMINATE);
+}
+
+ssize_t pull_ucs2_fstring(char *dest, const void *src)
+{
+ return pull_ucs2(NULL, dest, src, sizeof(fstring), -1, STR_TERMINATE);
+}
+
+/**
+ * Copy a string from a UCS2 src to a unix char * destination, allocating a buffer using talloc
+ *
+ * @param dest always set at least to NULL
+ *
+ * @returns The number of bytes occupied by the string in the destination
+ **/
+
+ssize_t pull_ucs2_talloc(TALLOC_CTX *ctx, char **dest, const smb_ucs2_t *src)
+{
+ size_t src_len = (strlen_w(src)+1) * sizeof(smb_ucs2_t);
+ *dest = NULL;
+ return convert_string_talloc(ctx, CH_UCS2, CH_UNIX, src, src_len, (const void **)dest);
+}
+
+/**
+ * Copy a string from a UCS2 src to a unix char * destination, allocating a buffer
+ *
+ * @param dest always set at least to NULL
+ *
+ * @returns The number of bytes occupied by the string in the destination
+ **/
+
+ssize_t pull_ucs2_allocate(void **dest, const smb_ucs2_t *src)
+{
+ size_t src_len = (strlen_w(src)+1) * sizeof(smb_ucs2_t);
+ *dest = NULL;
+ return convert_string_allocate(CH_UCS2, CH_UNIX, src, src_len, dest);
+}
+
+/**
+ Copy a string from a utf-8 source to a unix char* destination.
+ Flags can have:
+ STR_TERMINATE means the string in src is null terminated.
+ if STR_TERMINATE is set then src_len is ignored.
+ src_len is the length of the source area in bytes
+ Return the number of bytes occupied by the string in src.
+ The resulting string in "dest" is always null terminated.
+**/
+
+ssize_t pull_utf8(char *dest, const void *src, size_t dest_len, size_t src_len, int flags)
+{
+ size_t ret;
+
+ if (dest_len == (size_t)-1)
+ dest_len = sizeof(pstring);
+
+ if (flags & STR_TERMINATE) {
+ if (src_len == (size_t)-1) {
+ src_len = strlen(src) + 1;
+ } else {
+ size_t len = strnlen(src, src_len);
+ if (len < src_len)
+ len++;
+ src_len = len;
+ }
+ }
+
+ ret = convert_string(CH_UTF8, CH_UNIX, src, src_len, dest, dest_len);
+ if (dest_len)
+ dest[MIN(ret, dest_len-1)] = 0;
+
+ return src_len;
+}
+
+ssize_t pull_utf8_pstring(char *dest, const void *src)
+{
+ return pull_utf8(dest, src, sizeof(pstring), -1, STR_TERMINATE);
+}
+
+ssize_t pull_utf8_fstring(char *dest, const void *src)
+{
+ return pull_utf8(dest, src, sizeof(fstring), -1, STR_TERMINATE);
+}
+
+/**
+ * Copy a string from a UTF-8 src to a unix char * destination, allocating a buffer using talloc
+ *
+ * @param dest always set at least to NULL
+ *
+ * @returns The number of bytes occupied by the string in the destination
+ **/
+
+ssize_t pull_utf8_talloc(TALLOC_CTX *ctx, char **dest, const char *src)
+{
+ size_t src_len = strlen(src)+1;
+ *dest = NULL;
+ return convert_string_talloc(ctx, CH_UTF8, CH_UNIX, src, src_len, (const void **)dest);
+}
+
+/**
+ * Copy a string from a UTF-8 src to a unix char * destination, allocating a buffer
+ *
+ * @param dest always set at least to NULL
+ *
+ * @returns The number of bytes occupied by the string in the destination
+ **/
+
+ssize_t pull_utf8_allocate(void **dest, const char *src)
+{
+ size_t src_len = strlen(src)+1;
+ *dest = NULL;
+ return convert_string_allocate(CH_UTF8, CH_UNIX, src, src_len, dest);
+}
+
+/**
+ Copy a string from a char* src to a unicode or ascii
+ dos codepage destination choosing unicode or ascii based on the
+ flags in the SMB buffer starting at base_ptr.
+ Return the number of bytes occupied by the string in the destination.
+ flags can have:
+ STR_TERMINATE means include the null termination.
+ STR_UPPER means uppercase in the destination.
+ STR_ASCII use ascii even with unicode packet.
+ STR_NOALIGN means don't do alignment.
+ dest_len is the maximum length allowed in the destination. If dest_len
+ is -1 then no maxiumum is used.
+**/
+
+ssize_t push_string(const void *base_ptr, void *dest, const char *src, size_t dest_len, int flags)
+{
+ if (!(flags & STR_ASCII) && \
+ ((flags & STR_UNICODE || \
+ (SVAL(base_ptr, NBT_HDR_SIZE+HDR_FLG2) & FLAGS2_UNICODE_STRINGS)))) {
+ return push_ucs2(base_ptr, dest, src, dest_len, flags);
+ }
+ return push_ascii(dest, src, dest_len, flags);
+}
+
+
+/**
+ Copy a string from a unicode or ascii source (depending on
+ the packet flags) to a char* destination.
+ Flags can have:
+ STR_TERMINATE means the string in src is null terminated.
+ STR_UNICODE means to force as unicode.
+ STR_ASCII use ascii even with unicode packet.
+ STR_NOALIGN means don't do alignment.
+ if STR_TERMINATE is set then src_len is ignored is it is -1
+ src_len is the length of the source area in bytes.
+ Return the number of bytes occupied by the string in src.
+ The resulting string in "dest" is always null terminated.
+**/
+
+ssize_t pull_string(const void *base_ptr, char *dest, const void *src, size_t dest_len, size_t src_len, int flags)
+{
+ if (!(flags & STR_ASCII) && \
+ ((flags & STR_UNICODE || \
+ (SVAL(base_ptr, NBT_HDR_SIZE+HDR_FLG2) & FLAGS2_UNICODE_STRINGS)))) {
+ return pull_ucs2(base_ptr, dest, src, dest_len, src_len, flags);
+ }
+ return pull_ascii(dest, src, dest_len, src_len, flags);
+}
+
+ssize_t align_string(const void *base_ptr, const char *p, int flags)
+{
+ if (!(flags & STR_ASCII) && \
+ ((flags & STR_UNICODE || \
+ (SVAL(base_ptr, NBT_HDR_SIZE+HDR_FLG2) & FLAGS2_UNICODE_STRINGS)))) {
+ return ucs2_align(base_ptr, p, flags);
+ }
+ return 0;
+}
+
+/**
+ Copy a string from a unicode or ascii source (depending on
+ the packet flags) to a TALLOC'ed destination.
+ Flags can have:
+ STR_TERMINATE means the string in src is null terminated.
+ STR_UNICODE means to force as unicode.
+ STR_ASCII use ascii even with unicode packet.
+ STR_NOALIGN means don't do alignment.
+ if STR_TERMINATE is set then src_len is ignored is it is -1
+ src_len is the length of the source area in bytes.
+ Return the number of bytes occupied by the string in src.
+ The resulting string in "dest" is always null terminated.
+**/
+
+ssize_t pull_string_talloc(TALLOC_CTX *ctx, char **dest, const void *src, size_t src_len, int flags)
+{
+ if (!(flags & STR_ASCII) && \
+ (flags & STR_UNICODE)) {
+ return pull_ucs2_talloc(ctx, dest, src);
+ }
+ *dest = NULL;
+ if (flags & STR_TERMINATE) {
+ *dest = talloc_strdup(ctx, src);
+ return strlen(*dest);
+ }
+ *dest = talloc_strndup(ctx, src, src_len);
+ return src_len;
+}
+
+/**
+ Convert from ucs2 to unix charset and return the
+ allocated and converted string or NULL if an error occurred.
+ You must provide a zero terminated string.
+ The returning string will be zero terminated.
+**/
+
+char *acnv_u2ux(const smb_ucs2_t *src)
+{
+ size_t slen;
+ size_t dlen;
+ void *dest;
+
+ slen = (strlen_w(src) + 1) * sizeof(smb_ucs2_t);
+ dlen = convert_string_allocate(CH_UCS2, CH_UNIX, src, slen, &dest);
+ if (dlen == (size_t)-1)
+ return NULL;
+ else
+ return dest;
+}
+
+/**
+ Convert from unix to ucs2 charset and return the
+ allocated and converted string or NULL if an error occurred.
+ You must provide a zero terminated string.
+ The returning string will be zero terminated.
+**/
+
+smb_ucs2_t *acnv_uxu2(const char *src)
+{
+ size_t slen;
+ size_t dlen;
+ void *dest;
+
+ slen = strlen(src) + 1;
+ dlen = convert_string_allocate(CH_UNIX, CH_UCS2, src, slen, &dest);
+ if (dlen == (size_t)-1)
+ return NULL;
+ else
+ return dest;
+}
+
+/**
+ Convert from ucs2 to dos charset and return the
+ allocated and converted string or NULL if an error occurred.
+ You must provide a zero terminated string.
+ The returning string will be zero terminated.
+**/
+
+char *acnv_u2dos(const smb_ucs2_t *src)
+{
+ size_t slen;
+ size_t dlen;
+ void *dest;
+
+ slen = (strlen_w(src) + 1) * sizeof(smb_ucs2_t);
+ dlen = convert_string_allocate(CH_UCS2, CH_DOS, src, slen, &dest);
+ if (dlen == (size_t)-1)
+ return NULL;
+ else
+ return dest;
+}
+
+/**
+ Convert from dos to ucs2 charset and return the
+ allocated and converted string or NULL if an error occurred.
+ You must provide a zero terminated string.
+ The returning string will be zero terminated.
+**/
+
+smb_ucs2_t *acnv_dosu2(const char *src)
+{
+ size_t slen;
+ size_t dlen;
+ void *dest;
+
+ slen = strlen(src) + 1;
+ dlen = convert_string_allocate(CH_DOS, CH_UCS2, src, slen, &dest);
+ if (dlen == (size_t)-1)
+ return NULL;
+ else
+ return dest;
+}
generated by cgit (git 2.34.1) at 2024-07-03 22:37:35 +0000