mirror of
https://github.com/samba-team/samba.git
synced 2024-12-24 21:34:56 +03:00
dc36abe3a2
Jeremy.
(This used to be commit f5dddf339e
)
1091 lines
25 KiB
C
1091 lines
25 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
Samba utility functions
|
|
Copyright (C) Andrew Tridgell 1992-2001
|
|
Copyright (C) Simo Sorce 2001
|
|
Copyright (C) Jeremy Allison 2005
|
|
|
|
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"
|
|
|
|
#ifndef MAXUNI
|
|
#define MAXUNI 1024
|
|
#endif
|
|
|
|
/* these 3 tables define the unicode case handling. They are loaded
|
|
at startup either via mmap() or read() from the lib directory */
|
|
static smb_ucs2_t *upcase_table;
|
|
static smb_ucs2_t *lowcase_table;
|
|
static uint8 *valid_table;
|
|
static BOOL upcase_table_use_unmap;
|
|
static BOOL lowcase_table_use_unmap;
|
|
static BOOL valid_table_use_unmap;
|
|
|
|
/**
|
|
* This table says which Unicode characters are valid dos
|
|
* characters.
|
|
*
|
|
* Each value is just a single bit.
|
|
**/
|
|
static uint8 doschar_table[8192]; /* 65536 characters / 8 bits/byte */
|
|
|
|
/**
|
|
* Destroy global objects allocated by load_case_tables()
|
|
**/
|
|
void gfree_case_tables(void)
|
|
{
|
|
if ( upcase_table ) {
|
|
if ( upcase_table_use_unmap )
|
|
unmap_file(upcase_table, 0x20000);
|
|
else
|
|
SAFE_FREE(upcase_table);
|
|
}
|
|
|
|
if ( lowcase_table ) {
|
|
if ( lowcase_table_use_unmap )
|
|
unmap_file(lowcase_table, 0x20000);
|
|
else
|
|
SAFE_FREE(lowcase_table);
|
|
}
|
|
|
|
if ( valid_table ) {
|
|
if ( valid_table_use_unmap )
|
|
unmap_file(valid_table, 0x10000);
|
|
else
|
|
SAFE_FREE(valid_table);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Load or generate the case handling tables.
|
|
*
|
|
* The case tables are defined in UCS2 and don't depend on any
|
|
* configured parameters, so they never need to be reloaded.
|
|
**/
|
|
|
|
void load_case_tables(void)
|
|
{
|
|
static int initialised;
|
|
char *old_locale = NULL, *saved_locale = NULL;
|
|
int i;
|
|
|
|
if (initialised) {
|
|
return;
|
|
}
|
|
initialised = 1;
|
|
|
|
upcase_table = map_file(lib_path("upcase.dat"), 0x20000);
|
|
upcase_table_use_unmap = ( upcase_table != NULL );
|
|
|
|
lowcase_table = map_file(lib_path("lowcase.dat"), 0x20000);
|
|
lowcase_table_use_unmap = ( lowcase_table != NULL );
|
|
|
|
#ifdef HAVE_SETLOCALE
|
|
/* Get the name of the current locale. */
|
|
old_locale = setlocale(LC_ALL, NULL);
|
|
|
|
if (old_locale) {
|
|
/* Save it as it is in static storage. */
|
|
saved_locale = SMB_STRDUP(old_locale);
|
|
}
|
|
|
|
/* We set back the locale to C to get ASCII-compatible toupper/lower functions. */
|
|
setlocale(LC_ALL, "C");
|
|
#endif
|
|
|
|
/* we would like Samba to limp along even if these tables are
|
|
not available */
|
|
if (!upcase_table) {
|
|
DEBUG(1,("creating lame upcase table\n"));
|
|
upcase_table = SMB_MALLOC(0x20000);
|
|
for (i=0;i<0x10000;i++) {
|
|
smb_ucs2_t v;
|
|
SSVAL(&v, 0, i);
|
|
upcase_table[v] = i;
|
|
}
|
|
for (i=0;i<256;i++) {
|
|
smb_ucs2_t v;
|
|
SSVAL(&v, 0, UCS2_CHAR(i));
|
|
upcase_table[v] = UCS2_CHAR(islower(i)?toupper(i):i);
|
|
}
|
|
}
|
|
|
|
if (!lowcase_table) {
|
|
DEBUG(1,("creating lame lowcase table\n"));
|
|
lowcase_table = SMB_MALLOC(0x20000);
|
|
for (i=0;i<0x10000;i++) {
|
|
smb_ucs2_t v;
|
|
SSVAL(&v, 0, i);
|
|
lowcase_table[v] = i;
|
|
}
|
|
for (i=0;i<256;i++) {
|
|
smb_ucs2_t v;
|
|
SSVAL(&v, 0, UCS2_CHAR(i));
|
|
lowcase_table[v] = UCS2_CHAR(isupper(i)?tolower(i):i);
|
|
}
|
|
}
|
|
|
|
#ifdef HAVE_SETLOCALE
|
|
/* Restore the old locale. */
|
|
if (saved_locale) {
|
|
setlocale (LC_ALL, saved_locale);
|
|
SAFE_FREE(saved_locale);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
see if a ucs2 character can be mapped correctly to a dos character
|
|
and mapped back to the same character in ucs2
|
|
*/
|
|
|
|
int check_dos_char(smb_ucs2_t c)
|
|
{
|
|
lazy_initialize_conv();
|
|
|
|
/* Find the right byte, and right bit within the byte; return
|
|
* 1 or 0 */
|
|
return (doschar_table[(c & 0xffff) / 8] & (1 << (c & 7))) != 0;
|
|
}
|
|
|
|
|
|
static int check_dos_char_slowly(smb_ucs2_t c)
|
|
{
|
|
char buf[10];
|
|
smb_ucs2_t c2 = 0;
|
|
int len1, len2;
|
|
|
|
len1 = convert_string(CH_UCS2, CH_DOS, &c, 2, buf, sizeof(buf),False);
|
|
if (len1 == 0) {
|
|
return 0;
|
|
}
|
|
len2 = convert_string(CH_DOS, CH_UCS2, buf, len1, &c2, 2,False);
|
|
if (len2 != 2) {
|
|
return 0;
|
|
}
|
|
return (c == c2);
|
|
}
|
|
|
|
|
|
/**
|
|
* Fill out doschar table the hard way, by examining each character
|
|
**/
|
|
|
|
void init_doschar_table(void)
|
|
{
|
|
int i, j, byteval;
|
|
|
|
/* For each byte of packed table */
|
|
|
|
for (i = 0; i <= 0xffff; i += 8) {
|
|
byteval = 0;
|
|
for (j = 0; j <= 7; j++) {
|
|
smb_ucs2_t c;
|
|
|
|
c = i + j;
|
|
|
|
if (check_dos_char_slowly(c)) {
|
|
byteval |= 1 << j;
|
|
}
|
|
}
|
|
doschar_table[i/8] = byteval;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Load the valid character map table from <tt>valid.dat</tt> or
|
|
* create from the configured codepage.
|
|
*
|
|
* This function is called whenever the configuration is reloaded.
|
|
* However, the valid character table is not changed if it's loaded
|
|
* from a file, because we can't unmap files.
|
|
**/
|
|
|
|
void init_valid_table(void)
|
|
{
|
|
static int mapped_file;
|
|
int i;
|
|
const char *allowed = ".!#$%&'()_-@^`~";
|
|
uint8 *valid_file;
|
|
|
|
if (mapped_file) {
|
|
/* Can't unmap files, so stick with what we have */
|
|
return;
|
|
}
|
|
|
|
valid_file = map_file(lib_path("valid.dat"), 0x10000);
|
|
if (valid_file) {
|
|
valid_table = valid_file;
|
|
mapped_file = 1;
|
|
valid_table_use_unmap = True;
|
|
return;
|
|
}
|
|
|
|
/* Otherwise, we're using a dynamically created valid_table.
|
|
* It might need to be regenerated if the code page changed.
|
|
* We know that we're not using a mapped file, so we can
|
|
* free() the old one. */
|
|
if (valid_table)
|
|
SAFE_FREE(valid_table);
|
|
|
|
/* use free rather than unmap */
|
|
valid_table_use_unmap = False;
|
|
|
|
DEBUG(2,("creating default valid table\n"));
|
|
valid_table = SMB_MALLOC(0x10000);
|
|
for (i=0;i<128;i++) {
|
|
valid_table[i] = isalnum(i) || strchr(allowed,i);
|
|
}
|
|
|
|
for (;i<0x10000;i++) {
|
|
smb_ucs2_t c;
|
|
SSVAL(&c, 0, i);
|
|
valid_table[i] = check_dos_char(c);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Write a string in (little-endian) unicode format. src is in
|
|
the current DOS codepage. len is the length in bytes of the
|
|
string pointed to by dst.
|
|
|
|
if null_terminate is True then null terminate the packet (adds 2 bytes)
|
|
|
|
the return value is the length in bytes consumed by the string, including the
|
|
null termination if applied
|
|
********************************************************************/
|
|
|
|
size_t dos_PutUniCode(char *dst,const char *src, size_t len, BOOL null_terminate)
|
|
{
|
|
int flags = null_terminate ? STR_UNICODE|STR_NOALIGN|STR_TERMINATE
|
|
: STR_UNICODE|STR_NOALIGN;
|
|
return push_ucs2(NULL, dst, src, len, flags);
|
|
}
|
|
|
|
|
|
/*******************************************************************
|
|
Skip past a unicode string, but not more than len. Always move
|
|
past a terminating zero if found.
|
|
********************************************************************/
|
|
|
|
char *skip_unibuf(char *src, size_t len)
|
|
{
|
|
char *srcend = src + len;
|
|
|
|
while (src < srcend && SVAL(src,0)) {
|
|
src += 2;
|
|
}
|
|
|
|
if(!SVAL(src,0)) {
|
|
src += 2;
|
|
}
|
|
|
|
return src;
|
|
}
|
|
|
|
/* Copy a string from little-endian or big-endian unicode source (depending
|
|
* on flags) to internal samba format destination
|
|
*/
|
|
|
|
int rpcstr_pull(char* dest, void *src, int dest_len, int src_len, int flags)
|
|
{
|
|
if (!src) {
|
|
dest[0] = 0;
|
|
return 0;
|
|
}
|
|
if(dest_len==-1) {
|
|
dest_len=MAXUNI-3;
|
|
}
|
|
return pull_ucs2(NULL, dest, src, dest_len, src_len, flags|STR_UNICODE|STR_NOALIGN);
|
|
}
|
|
|
|
/* Copy a string from a unistr2 source to internal samba format
|
|
destination. Use this instead of direct calls to rpcstr_pull() to avoid
|
|
having to determine whether the source string is null terminated. */
|
|
|
|
int rpcstr_pull_unistr2_fstring(char *dest, UNISTR2 *src)
|
|
{
|
|
return pull_ucs2(NULL, dest, src->buffer, sizeof(fstring),
|
|
src->uni_str_len * 2, 0);
|
|
}
|
|
|
|
/* Helper function to return a talloc'ed string. I have implemented it with a
|
|
* copy because I don't really know how pull_ucs2 and friends calculate the
|
|
* target size. If this turns out to be a major bottleneck someone with deeper
|
|
* multi-byte knowledge needs to revisit this.
|
|
* My (VL) use is dsr_getdcname, which returns 6 strings, the alternative would
|
|
* have been to manually talloc_strdup them in rpc_client/cli_netlogon.c.
|
|
*/
|
|
|
|
char *rpcstr_pull_unistr2_talloc(TALLOC_CTX *mem_ctx, const UNISTR2 *src)
|
|
{
|
|
pstring tmp;
|
|
size_t result;
|
|
|
|
result = pull_ucs2(NULL, tmp, src->buffer, sizeof(tmp),
|
|
src->uni_str_len * 2, 0);
|
|
if (result == (size_t)-1) {
|
|
return NULL;
|
|
}
|
|
|
|
return talloc_strdup(mem_ctx, tmp);
|
|
}
|
|
|
|
/* Converts a string from internal samba format to unicode
|
|
*/
|
|
|
|
int rpcstr_push(void* dest, const char *src, size_t dest_len, int flags)
|
|
{
|
|
return push_ucs2(NULL, dest, src, dest_len, flags|STR_UNICODE|STR_NOALIGN);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a (little-endian) UNISTR2 structure to an ASCII string.
|
|
********************************************************************/
|
|
|
|
void unistr2_to_ascii(char *dest, const UNISTR2 *str, size_t maxlen)
|
|
{
|
|
if (str == NULL) {
|
|
*dest='\0';
|
|
return;
|
|
}
|
|
pull_ucs2(NULL, dest, str->buffer, maxlen, str->uni_str_len*2, STR_NOALIGN);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a (little-endian) UNISTR3 structure to an ASCII string.
|
|
********************************************************************/
|
|
|
|
void unistr3_to_ascii(char *dest, const UNISTR3 *str, size_t maxlen)
|
|
{
|
|
if (str == NULL) {
|
|
*dest='\0';
|
|
return;
|
|
}
|
|
pull_ucs2(NULL, dest, str->str.buffer, maxlen, str->uni_str_len*2,
|
|
STR_NOALIGN);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Give a static string for displaying a UNISTR2.
|
|
********************************************************************/
|
|
|
|
const char *unistr2_static(const UNISTR2 *str)
|
|
{
|
|
static pstring ret;
|
|
unistr2_to_ascii(ret, str, sizeof(ret));
|
|
return ret;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Duplicate a UNISTR2 string into a null terminated char*
|
|
using a talloc context.
|
|
********************************************************************/
|
|
|
|
char *unistr2_tdup(TALLOC_CTX *ctx, const UNISTR2 *str)
|
|
{
|
|
char *s;
|
|
int maxlen = (str->uni_str_len+1)*4;
|
|
if (!str->buffer) {
|
|
return NULL;
|
|
}
|
|
s = (char *)TALLOC(ctx, maxlen); /* convervative */
|
|
if (!s) {
|
|
return NULL;
|
|
}
|
|
pull_ucs2(NULL, s, str->buffer, maxlen, str->uni_str_len*2, STR_NOALIGN);
|
|
return s;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a wchar to upper case.
|
|
********************************************************************/
|
|
|
|
smb_ucs2_t toupper_w(smb_ucs2_t val)
|
|
{
|
|
return upcase_table[SVAL(&val,0)];
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a wchar to lower case.
|
|
********************************************************************/
|
|
|
|
smb_ucs2_t tolower_w( smb_ucs2_t val )
|
|
{
|
|
return lowcase_table[SVAL(&val,0)];
|
|
}
|
|
|
|
/*******************************************************************
|
|
Determine if a character is lowercase.
|
|
********************************************************************/
|
|
|
|
BOOL islower_w(smb_ucs2_t c)
|
|
{
|
|
return upcase_table[SVAL(&c,0)] != c;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Determine if a character is uppercase.
|
|
********************************************************************/
|
|
|
|
BOOL isupper_w(smb_ucs2_t c)
|
|
{
|
|
return lowcase_table[SVAL(&c,0)] != c;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Determine if a character is valid in a 8.3 name.
|
|
********************************************************************/
|
|
|
|
BOOL isvalid83_w(smb_ucs2_t c)
|
|
{
|
|
return valid_table[SVAL(&c,0)] != 0;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Count the number of characters in a smb_ucs2_t string.
|
|
********************************************************************/
|
|
|
|
size_t strlen_w(const smb_ucs2_t *src)
|
|
{
|
|
size_t len;
|
|
smb_ucs2_t c;
|
|
|
|
for(len = 0; *(COPY_UCS2_CHAR(&c,src)); src++, len++) {
|
|
;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Count up to max number of characters in a smb_ucs2_t string.
|
|
********************************************************************/
|
|
|
|
size_t strnlen_w(const smb_ucs2_t *src, size_t max)
|
|
{
|
|
size_t len;
|
|
smb_ucs2_t c;
|
|
|
|
for(len = 0; *(COPY_UCS2_CHAR(&c,src)) && (len < max); src++, len++) {
|
|
;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Wide strchr().
|
|
********************************************************************/
|
|
|
|
smb_ucs2_t *strchr_w(const smb_ucs2_t *s, smb_ucs2_t c)
|
|
{
|
|
smb_ucs2_t cp;
|
|
while (*(COPY_UCS2_CHAR(&cp,s))) {
|
|
if (c == cp) {
|
|
return (smb_ucs2_t *)s;
|
|
}
|
|
s++;
|
|
}
|
|
if (c == cp) {
|
|
return (smb_ucs2_t *)s;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
smb_ucs2_t *strchr_wa(const smb_ucs2_t *s, char c)
|
|
{
|
|
return strchr_w(s, UCS2_CHAR(c));
|
|
}
|
|
|
|
/*******************************************************************
|
|
Wide strrchr().
|
|
********************************************************************/
|
|
|
|
smb_ucs2_t *strrchr_w(const smb_ucs2_t *s, smb_ucs2_t c)
|
|
{
|
|
smb_ucs2_t cp;
|
|
const smb_ucs2_t *p = s;
|
|
int len = strlen_w(s);
|
|
|
|
if (len == 0) {
|
|
return NULL;
|
|
}
|
|
p += (len - 1);
|
|
do {
|
|
if (c == *(COPY_UCS2_CHAR(&cp,p))) {
|
|
return (smb_ucs2_t *)p;
|
|
}
|
|
} while (p-- != s);
|
|
return NULL;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Wide version of strrchr that returns after doing strrchr 'n' times.
|
|
********************************************************************/
|
|
|
|
smb_ucs2_t *strnrchr_w(const smb_ucs2_t *s, smb_ucs2_t c, unsigned int n)
|
|
{
|
|
smb_ucs2_t cp;
|
|
const smb_ucs2_t *p = s;
|
|
int len = strlen_w(s);
|
|
|
|
if (len == 0 || !n) {
|
|
return NULL;
|
|
}
|
|
p += (len - 1);
|
|
do {
|
|
if (c == *(COPY_UCS2_CHAR(&cp,p))) {
|
|
n--;
|
|
}
|
|
|
|
if (!n) {
|
|
return (smb_ucs2_t *)p;
|
|
}
|
|
} while (p-- != s);
|
|
return NULL;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Wide strstr().
|
|
********************************************************************/
|
|
|
|
smb_ucs2_t *strstr_w(const smb_ucs2_t *s, const smb_ucs2_t *ins)
|
|
{
|
|
smb_ucs2_t *r;
|
|
size_t inslen;
|
|
|
|
if (!s || !*s || !ins || !*ins) {
|
|
return NULL;
|
|
}
|
|
|
|
inslen = strlen_w(ins);
|
|
r = (smb_ucs2_t *)s;
|
|
|
|
while ((r = strchr_w(r, *ins))) {
|
|
if (strncmp_w(r, ins, inslen) == 0) {
|
|
return r;
|
|
}
|
|
r++;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a string to lower case.
|
|
return True if any char is converted
|
|
********************************************************************/
|
|
|
|
BOOL strlower_w(smb_ucs2_t *s)
|
|
{
|
|
smb_ucs2_t cp;
|
|
BOOL ret = False;
|
|
|
|
while (*(COPY_UCS2_CHAR(&cp,s))) {
|
|
smb_ucs2_t v = tolower_w(cp);
|
|
if (v != cp) {
|
|
COPY_UCS2_CHAR(s,&v);
|
|
ret = True;
|
|
}
|
|
s++;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a string to upper case.
|
|
return True if any char is converted
|
|
********************************************************************/
|
|
|
|
BOOL strupper_w(smb_ucs2_t *s)
|
|
{
|
|
smb_ucs2_t cp;
|
|
BOOL ret = False;
|
|
while (*(COPY_UCS2_CHAR(&cp,s))) {
|
|
smb_ucs2_t v = toupper_w(cp);
|
|
if (v != cp) {
|
|
COPY_UCS2_CHAR(s,&v);
|
|
ret = True;
|
|
}
|
|
s++;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a string to "normal" form.
|
|
********************************************************************/
|
|
|
|
void strnorm_w(smb_ucs2_t *s, int case_default)
|
|
{
|
|
if (case_default == CASE_UPPER) {
|
|
strupper_w(s);
|
|
} else {
|
|
strlower_w(s);
|
|
}
|
|
}
|
|
|
|
int strcmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b)
|
|
{
|
|
smb_ucs2_t cpa, cpb;
|
|
|
|
while ((*(COPY_UCS2_CHAR(&cpb,b))) && (*(COPY_UCS2_CHAR(&cpa,a)) == cpb)) {
|
|
a++;
|
|
b++;
|
|
}
|
|
return (*(COPY_UCS2_CHAR(&cpa,a)) - *(COPY_UCS2_CHAR(&cpb,b)));
|
|
/* warning: if *a != *b and both are not 0 we return a random
|
|
greater or lesser than 0 number not realted to which
|
|
string is longer */
|
|
}
|
|
|
|
int strncmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b, size_t len)
|
|
{
|
|
smb_ucs2_t cpa, cpb;
|
|
size_t n = 0;
|
|
|
|
while ((n < len) && (*(COPY_UCS2_CHAR(&cpb,b))) && (*(COPY_UCS2_CHAR(&cpa,a)) == cpb)) {
|
|
a++;
|
|
b++;
|
|
n++;
|
|
}
|
|
return (len - n)?(*(COPY_UCS2_CHAR(&cpa,a)) - *(COPY_UCS2_CHAR(&cpb,b))):0;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Case insensitive string comparison.
|
|
********************************************************************/
|
|
|
|
int strcasecmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b)
|
|
{
|
|
smb_ucs2_t cpa, cpb;
|
|
|
|
while ((*COPY_UCS2_CHAR(&cpb,b)) && toupper_w(*(COPY_UCS2_CHAR(&cpa,a))) == toupper_w(cpb)) {
|
|
a++;
|
|
b++;
|
|
}
|
|
return (tolower_w(*(COPY_UCS2_CHAR(&cpa,a))) - tolower_w(*(COPY_UCS2_CHAR(&cpb,b))));
|
|
}
|
|
|
|
/*******************************************************************
|
|
Case insensitive string comparison, length limited.
|
|
********************************************************************/
|
|
|
|
int strncasecmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b, size_t len)
|
|
{
|
|
smb_ucs2_t cpa, cpb;
|
|
size_t n = 0;
|
|
|
|
while ((n < len) && *COPY_UCS2_CHAR(&cpb,b) && (toupper_w(*(COPY_UCS2_CHAR(&cpa,a))) == toupper_w(cpb))) {
|
|
a++;
|
|
b++;
|
|
n++;
|
|
}
|
|
return (len - n)?(tolower_w(*(COPY_UCS2_CHAR(&cpa,a))) - tolower_w(*(COPY_UCS2_CHAR(&cpb,b)))):0;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Compare 2 strings.
|
|
********************************************************************/
|
|
|
|
BOOL strequal_w(const smb_ucs2_t *s1, const smb_ucs2_t *s2)
|
|
{
|
|
if (s1 == s2) {
|
|
return(True);
|
|
}
|
|
if (!s1 || !s2) {
|
|
return(False);
|
|
}
|
|
|
|
return(strcasecmp_w(s1,s2)==0);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Compare 2 strings up to and including the nth char.
|
|
******************************************************************/
|
|
|
|
BOOL strnequal_w(const smb_ucs2_t *s1,const smb_ucs2_t *s2,size_t n)
|
|
{
|
|
if (s1 == s2) {
|
|
return(True);
|
|
}
|
|
if (!s1 || !s2 || !n) {
|
|
return(False);
|
|
}
|
|
|
|
return(strncasecmp_w(s1,s2,n)==0);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Duplicate string.
|
|
********************************************************************/
|
|
|
|
smb_ucs2_t *strdup_w(const smb_ucs2_t *src)
|
|
{
|
|
return strndup_w(src, 0);
|
|
}
|
|
|
|
/* if len == 0 then duplicate the whole string */
|
|
|
|
smb_ucs2_t *strndup_w(const smb_ucs2_t *src, size_t len)
|
|
{
|
|
smb_ucs2_t *dest;
|
|
|
|
if (!len) {
|
|
len = strlen_w(src);
|
|
}
|
|
dest = SMB_MALLOC_ARRAY(smb_ucs2_t, len + 1);
|
|
if (!dest) {
|
|
DEBUG(0,("strdup_w: out of memory!\n"));
|
|
return NULL;
|
|
}
|
|
|
|
memcpy(dest, src, len * sizeof(smb_ucs2_t));
|
|
dest[len] = 0;
|
|
return dest;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Copy a string with max len.
|
|
********************************************************************/
|
|
|
|
smb_ucs2_t *strncpy_w(smb_ucs2_t *dest, const smb_ucs2_t *src, const size_t max)
|
|
{
|
|
smb_ucs2_t cp;
|
|
size_t len;
|
|
|
|
if (!dest || !src) {
|
|
return NULL;
|
|
}
|
|
|
|
for (len = 0; (*COPY_UCS2_CHAR(&cp,(src+len))) && (len < max); len++) {
|
|
cp = *COPY_UCS2_CHAR(dest+len,src+len);
|
|
}
|
|
cp = 0;
|
|
for ( /*nothing*/ ; len < max; len++ ) {
|
|
cp = *COPY_UCS2_CHAR(dest+len,&cp);
|
|
}
|
|
|
|
return dest;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Append a string of len bytes and add a terminator.
|
|
********************************************************************/
|
|
|
|
smb_ucs2_t *strncat_w(smb_ucs2_t *dest, const smb_ucs2_t *src, const size_t max)
|
|
{
|
|
size_t start;
|
|
size_t len;
|
|
smb_ucs2_t z = 0;
|
|
|
|
if (!dest || !src) {
|
|
return NULL;
|
|
}
|
|
|
|
start = strlen_w(dest);
|
|
len = strnlen_w(src, max);
|
|
|
|
memcpy(&dest[start], src, len*sizeof(smb_ucs2_t));
|
|
z = *COPY_UCS2_CHAR(dest+start+len,&z);
|
|
|
|
return dest;
|
|
}
|
|
|
|
smb_ucs2_t *strcat_w(smb_ucs2_t *dest, const smb_ucs2_t *src)
|
|
{
|
|
size_t start;
|
|
size_t len;
|
|
smb_ucs2_t z = 0;
|
|
|
|
if (!dest || !src) {
|
|
return NULL;
|
|
}
|
|
|
|
start = strlen_w(dest);
|
|
len = strlen_w(src);
|
|
|
|
memcpy(&dest[start], src, len*sizeof(smb_ucs2_t));
|
|
z = *COPY_UCS2_CHAR(dest+start+len,&z);
|
|
|
|
return dest;
|
|
}
|
|
|
|
|
|
/*******************************************************************
|
|
Replace any occurence of oldc with newc in unicode string.
|
|
********************************************************************/
|
|
|
|
void string_replace_w(smb_ucs2_t *s, smb_ucs2_t oldc, smb_ucs2_t newc)
|
|
{
|
|
smb_ucs2_t cp;
|
|
|
|
for(;*(COPY_UCS2_CHAR(&cp,s));s++) {
|
|
if(cp==oldc) {
|
|
COPY_UCS2_CHAR(s,&newc);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Trim unicode string.
|
|
********************************************************************/
|
|
|
|
BOOL trim_string_w(smb_ucs2_t *s, const smb_ucs2_t *front,
|
|
const smb_ucs2_t *back)
|
|
{
|
|
BOOL ret = False;
|
|
size_t len, front_len, back_len;
|
|
|
|
if (!s) {
|
|
return False;
|
|
}
|
|
|
|
len = strlen_w(s);
|
|
|
|
if (front && *front) {
|
|
front_len = strlen_w(front);
|
|
while (len && strncmp_w(s, front, front_len) == 0) {
|
|
memmove(s, (s + front_len), (len - front_len + 1) * sizeof(smb_ucs2_t));
|
|
len -= front_len;
|
|
ret = True;
|
|
}
|
|
}
|
|
|
|
if (back && *back) {
|
|
back_len = strlen_w(back);
|
|
while (len && strncmp_w((s + (len - back_len)), back, back_len) == 0) {
|
|
s[len - back_len] = 0;
|
|
len -= back_len;
|
|
ret = True;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
The *_wa() functions take a combination of 7 bit ascii
|
|
and wide characters They are used so that you can use string
|
|
functions combining C string constants with ucs2 strings
|
|
|
|
The char* arguments must NOT be multibyte - to be completely sure
|
|
of this only pass string constants */
|
|
|
|
int strcmp_wa(const smb_ucs2_t *a, const char *b)
|
|
{
|
|
smb_ucs2_t cp = 0;
|
|
|
|
while (*b && *(COPY_UCS2_CHAR(&cp,a)) == UCS2_CHAR(*b)) {
|
|
a++;
|
|
b++;
|
|
}
|
|
return (*(COPY_UCS2_CHAR(&cp,a)) - UCS2_CHAR(*b));
|
|
}
|
|
|
|
int strncmp_wa(const smb_ucs2_t *a, const char *b, size_t len)
|
|
{
|
|
smb_ucs2_t cp = 0;
|
|
size_t n = 0;
|
|
|
|
while ((n < len) && *b && *(COPY_UCS2_CHAR(&cp,a)) == UCS2_CHAR(*b)) {
|
|
a++;
|
|
b++;
|
|
n++;
|
|
}
|
|
return (len - n)?(*(COPY_UCS2_CHAR(&cp,a)) - UCS2_CHAR(*b)):0;
|
|
}
|
|
|
|
smb_ucs2_t *strpbrk_wa(const smb_ucs2_t *s, const char *p)
|
|
{
|
|
smb_ucs2_t cp;
|
|
|
|
while (*(COPY_UCS2_CHAR(&cp,s))) {
|
|
int i;
|
|
for (i=0; p[i] && cp != UCS2_CHAR(p[i]); i++)
|
|
;
|
|
if (p[i]) {
|
|
return (smb_ucs2_t *)s;
|
|
}
|
|
s++;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
smb_ucs2_t *strstr_wa(const smb_ucs2_t *s, const char *ins)
|
|
{
|
|
smb_ucs2_t *r;
|
|
size_t inslen;
|
|
|
|
if (!s || !ins) {
|
|
return NULL;
|
|
}
|
|
|
|
inslen = strlen(ins);
|
|
r = (smb_ucs2_t *)s;
|
|
|
|
while ((r = strchr_w(r, UCS2_CHAR(*ins)))) {
|
|
if (strncmp_wa(r, ins, inslen) == 0)
|
|
return r;
|
|
r++;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
BOOL trim_string_wa(smb_ucs2_t *s, const char *front,
|
|
const char *back)
|
|
{
|
|
wpstring f, b;
|
|
|
|
if (front) {
|
|
push_ucs2(NULL, f, front, sizeof(wpstring) - 1, STR_TERMINATE);
|
|
} else {
|
|
*f = 0;
|
|
}
|
|
if (back) {
|
|
push_ucs2(NULL, b, back, sizeof(wpstring) - 1, STR_TERMINATE);
|
|
} else {
|
|
*b = 0;
|
|
}
|
|
return trim_string_w(s, f, b);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Returns the length in number of wide characters.
|
|
******************************************************************/
|
|
|
|
int unistrlen(uint16 *s)
|
|
{
|
|
int len;
|
|
|
|
if (!s) {
|
|
return -1;
|
|
}
|
|
|
|
for (len=0; SVAL(s,0); s++,len++) {
|
|
;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Strcpy for unicode strings. Returns length (in num of wide chars).
|
|
Not odd align safe.
|
|
********************************************************************/
|
|
|
|
int unistrcpy(uint16 *dst, uint16 *src)
|
|
{
|
|
int num_wchars = 0;
|
|
|
|
while (SVAL(src,0)) {
|
|
*dst++ = *src++;
|
|
num_wchars++;
|
|
}
|
|
*dst = 0;
|
|
|
|
return num_wchars;
|
|
}
|
|
|
|
/**
|
|
* Samba ucs2 type to UNISTR2 conversion
|
|
*
|
|
* @param ctx Talloc context to create the dst strcture (if null) and the
|
|
* contents of the unicode string.
|
|
* @param dst UNISTR2 destination. If equals null, then it's allocated.
|
|
* @param src smb_ucs2_t source.
|
|
* @param max_len maximum number of unicode characters to copy. If equals
|
|
* null, then null-termination of src is taken
|
|
*
|
|
* @return copied UNISTR2 destination
|
|
**/
|
|
|
|
UNISTR2* ucs2_to_unistr2(TALLOC_CTX *ctx, UNISTR2* dst, smb_ucs2_t* src)
|
|
{
|
|
size_t len;
|
|
|
|
if (!src) {
|
|
return NULL;
|
|
}
|
|
|
|
len = strlen_w(src);
|
|
|
|
/* allocate UNISTR2 destination if not given */
|
|
if (!dst) {
|
|
dst = TALLOC_P(ctx, UNISTR2);
|
|
if (!dst)
|
|
return NULL;
|
|
}
|
|
if (!dst->buffer) {
|
|
dst->buffer = TALLOC_ARRAY(ctx, uint16, len + 1);
|
|
if (!dst->buffer)
|
|
return NULL;
|
|
}
|
|
|
|
/* set UNISTR2 parameters */
|
|
dst->uni_max_len = len + 1;
|
|
dst->offset = 0;
|
|
dst->uni_str_len = len;
|
|
|
|
/* copy the actual unicode string */
|
|
strncpy_w(dst->buffer, src, dst->uni_max_len);
|
|
|
|
return dst;
|
|
}
|
|
|
|
/*************************************************************
|
|
ascii only toupper - saves the need for smbd to be in C locale.
|
|
*************************************************************/
|
|
|
|
int toupper_ascii(int c)
|
|
{
|
|
smb_ucs2_t uc = toupper_w(UCS2_CHAR(c));
|
|
return UCS2_TO_CHAR(uc);
|
|
}
|
|
|
|
/*************************************************************
|
|
ascii only tolower - saves the need for smbd to be in C locale.
|
|
*************************************************************/
|
|
|
|
int tolower_ascii(int c)
|
|
{
|
|
smb_ucs2_t uc = tolower_w(UCS2_CHAR(c));
|
|
return UCS2_TO_CHAR(uc);
|
|
}
|
|
|
|
/*************************************************************
|
|
ascii only isupper - saves the need for smbd to be in C locale.
|
|
*************************************************************/
|
|
|
|
int isupper_ascii(int c)
|
|
{
|
|
return isupper_w(UCS2_CHAR(c));
|
|
}
|
|
|
|
/*************************************************************
|
|
ascii only islower - saves the need for smbd to be in C locale.
|
|
*************************************************************/
|
|
|
|
int islower_ascii(int c)
|
|
{
|
|
return islower_w(UCS2_CHAR(c));
|
|
}
|