2 Unix SMB/CIFS implementation.
3 Samba utility functions
4 Copyright (C) Andrew Tridgell 1992-2001
5 Copyright (C) Simo Sorce 2001
6 Copyright (C) Jeremy Allison 2005
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
28 /* these 3 tables define the unicode case handling. They are loaded
29 at startup either via mmap() or read() from the lib directory */
30 static smb_ucs2_t *upcase_table;
31 static smb_ucs2_t *lowcase_table;
32 static uint8 *valid_table;
33 static bool upcase_table_use_unmap;
34 static bool lowcase_table_use_unmap;
35 static bool valid_table_use_unmap;
38 * This table says which Unicode characters are valid dos
41 * Each value is just a single bit.
43 static uint8 doschar_table[8192]; /* 65536 characters / 8 bits/byte */
46 * Destroy global objects allocated by load_case_tables()
48 void gfree_case_tables(void)
51 if ( upcase_table_use_unmap )
52 unmap_file(upcase_table, 0x20000);
54 SAFE_FREE(upcase_table);
57 if ( lowcase_table ) {
58 if ( lowcase_table_use_unmap )
59 unmap_file(lowcase_table, 0x20000);
61 SAFE_FREE(lowcase_table);
65 if ( valid_table_use_unmap )
66 unmap_file(valid_table, 0x10000);
68 SAFE_FREE(valid_table);
73 * Load or generate the case handling tables.
75 * The case tables are defined in UCS2 and don't depend on any
76 * configured parameters, so they never need to be reloaded.
79 void load_case_tables(void)
81 static int initialised;
82 char *old_locale = NULL, *saved_locale = NULL;
84 TALLOC_CTX *frame = NULL;
91 frame = talloc_stackframe();
93 upcase_table = (smb_ucs2_t *)map_file(data_path("upcase.dat"),
95 upcase_table_use_unmap = ( upcase_table != NULL );
97 lowcase_table = (smb_ucs2_t *)map_file(data_path("lowcase.dat"),
99 lowcase_table_use_unmap = ( lowcase_table != NULL );
101 #ifdef HAVE_SETLOCALE
102 /* Get the name of the current locale. */
103 old_locale = setlocale(LC_ALL, NULL);
106 /* Save it as it is in static storage. */
107 saved_locale = SMB_STRDUP(old_locale);
110 /* We set back the locale to C to get ASCII-compatible toupper/lower functions. */
111 setlocale(LC_ALL, "C");
114 /* we would like Samba to limp along even if these tables are
117 DEBUG(1,("creating lame upcase table\n"));
118 upcase_table = (smb_ucs2_t *)SMB_MALLOC(0x20000);
119 for (i=0;i<0x10000;i++) {
124 for (i=0;i<256;i++) {
126 SSVAL(&v, 0, UCS2_CHAR(i));
127 upcase_table[v] = UCS2_CHAR(islower(i)?toupper(i):i);
131 if (!lowcase_table) {
132 DEBUG(1,("creating lame lowcase table\n"));
133 lowcase_table = (smb_ucs2_t *)SMB_MALLOC(0x20000);
134 for (i=0;i<0x10000;i++) {
137 lowcase_table[v] = i;
139 for (i=0;i<256;i++) {
141 SSVAL(&v, 0, UCS2_CHAR(i));
142 lowcase_table[v] = UCS2_CHAR(isupper(i)?tolower(i):i);
146 #ifdef HAVE_SETLOCALE
147 /* Restore the old locale. */
149 setlocale (LC_ALL, saved_locale);
150 SAFE_FREE(saved_locale);
157 see if a ucs2 character can be mapped correctly to a dos character
158 and mapped back to the same character in ucs2
161 static int check_dos_char(smb_ucs2_t c)
163 lazy_initialize_conv();
165 /* Find the right byte, and right bit within the byte; return
167 return (doschar_table[(c & 0xffff) / 8] & (1 << (c & 7))) != 0;
171 static int check_dos_char_slowly(smb_ucs2_t c)
177 len1 = convert_string(CH_UTF16LE, CH_DOS, &c, 2, buf, sizeof(buf),False);
181 len2 = convert_string(CH_DOS, CH_UTF16LE, buf, len1, &c2, 2,False);
190 * Fill out doschar table the hard way, by examining each character
193 static void init_doschar_table(void)
197 /* For each byte of packed table */
199 for (i = 0; i <= 0xffff; i += 8) {
201 for (j = 0; j <= 7; j++) {
206 if (check_dos_char_slowly(c)) {
210 doschar_table[i/8] = byteval;
216 * Load the valid character map table from <tt>valid.dat</tt> or
217 * create from the configured codepage.
219 * This function is called whenever the configuration is reloaded.
220 * However, the valid character table is not changed if it's loaded
221 * from a file, because we can't unmap files.
224 void init_valid_table(void)
226 static int mapped_file;
228 const char *allowed = ".!#$%&'()_-@^`~";
231 init_doschar_table();
234 /* Can't unmap files, so stick with what we have */
238 valid_file = (uint8 *)map_file(data_path("valid.dat"), 0x10000);
240 valid_table = valid_file;
242 valid_table_use_unmap = True;
246 /* Otherwise, we're using a dynamically created valid_table.
247 * It might need to be regenerated if the code page changed.
248 * We know that we're not using a mapped file, so we can
249 * free() the old one. */
250 SAFE_FREE(valid_table);
252 /* use free rather than unmap */
253 valid_table_use_unmap = False;
255 DEBUG(2,("creating default valid table\n"));
256 valid_table = (uint8 *)SMB_MALLOC(0x10000);
257 SMB_ASSERT(valid_table != NULL);
258 for (i=0;i<128;i++) {
259 valid_table[i] = isalnum(i) || strchr(allowed,i);
262 for (;i<0x10000;i++) {
265 valid_table[i] = check_dos_char(c);
269 /*******************************************************************
270 Write a string in (little-endian) unicode format. src is in
271 the current DOS codepage. len is the length in bytes of the
272 string pointed to by dst.
274 if null_terminate is True then null terminate the packet (adds 2 bytes)
276 the return value is the length in bytes consumed by the string, including the
277 null termination if applied
278 ********************************************************************/
280 size_t dos_PutUniCode(char *dst,const char *src, size_t len, bool null_terminate)
282 int flags = null_terminate ? STR_UNICODE|STR_NOALIGN|STR_TERMINATE
283 : STR_UNICODE|STR_NOALIGN;
284 return push_ucs2(NULL, dst, src, len, flags);
288 /*******************************************************************
289 Skip past a unicode string, but not more than len. Always move
290 past a terminating zero if found.
291 ********************************************************************/
293 char *skip_unibuf(char *src, size_t len)
295 char *srcend = src + len;
297 while (src < srcend && SVAL(src,0)) {
308 /* Copy a string from little-endian or big-endian unicode source (depending
309 * on flags) to internal samba format destination
312 int rpcstr_pull(char* dest, void *src, int dest_len, int src_len, int flags)
321 return pull_ucs2(NULL, dest, src, dest_len, src_len, flags|STR_UNICODE|STR_NOALIGN);
324 /* Copy a string from little-endian or big-endian unicode source (depending
325 * on flags) to internal samba format destination. Allocates on talloc ctx.
328 int rpcstr_pull_talloc(TALLOC_CTX *ctx,
334 return pull_ucs2_base_talloc(ctx,
339 flags|STR_UNICODE|STR_NOALIGN);
343 /* Copy a string from a unistr2 source to internal samba format
344 destination. Use this instead of direct calls to rpcstr_pull() to avoid
345 having to determine whether the source string is null terminated. */
347 int rpcstr_pull_unistr2_fstring(char *dest, UNISTR2 *src)
349 return pull_ucs2(NULL, dest, src->buffer, sizeof(fstring),
350 src->uni_str_len * 2, 0);
353 /* Helper function to return a talloc'ed string. I have implemented it with a
354 * copy because I don't really know how pull_ucs2 and friends calculate the
355 * target size. If this turns out to be a major bottleneck someone with deeper
356 * multi-byte knowledge needs to revisit this.
357 * I just did (JRA :-). No longer uses copy.
358 * My (VL) use is dsr_getdcname, which returns 6 strings, the alternative would
359 * have been to manually talloc_strdup them in rpc_client/cli_netlogon.c.
362 char *rpcstr_pull_unistr2_talloc(TALLOC_CTX *ctx, const UNISTR2 *src)
365 size_t dest_len = convert_string_talloc(ctx,
369 src->uni_str_len * 2,
372 if (dest_len == (size_t)-1) {
376 /* Ensure we're returning a null terminated string. */
378 /* Did we already process the terminating zero ? */
379 if (dest[dest_len-1] != 0) {
380 size_t size = talloc_get_size(dest);
381 /* Have we got space to append the '\0' ? */
382 if (size <= dest_len) {
384 dest = TALLOC_REALLOC_ARRAY(ctx, dest, char,
388 dest_len = (size_t)-1;
393 dest[dest_len] = '\0';
403 /* Converts a string from internal samba format to unicode
406 int rpcstr_push(void *dest, const char *src, size_t dest_len, int flags)
408 return push_ucs2(NULL, dest, src, dest_len, flags|STR_UNICODE|STR_NOALIGN);
411 /* Converts a string from internal samba format to unicode. Always terminates.
412 * Actually just a wrapper round push_ucs2_talloc().
415 int rpcstr_push_talloc(TALLOC_CTX *ctx, smb_ucs2_t **dest, const char *src)
417 return push_ucs2_talloc(ctx, dest, src);
420 /*******************************************************************
421 Convert a (little-endian) UNISTR2 structure to an ASCII string.
422 ********************************************************************/
424 void unistr2_to_ascii(char *dest, const UNISTR2 *str, size_t maxlen)
426 if ((str == NULL) || (str->uni_str_len == 0)) {
430 pull_ucs2(NULL, dest, str->buffer, maxlen, str->uni_str_len*2, STR_NOALIGN);
434 /*******************************************************************
435 Convert a (little-endian) UNISTR3 structure to an ASCII string.
436 ********************************************************************/
438 void unistr3_to_ascii(char *dest, const UNISTR3 *str, size_t maxlen)
440 if ((str == NULL) || (str->uni_str_len == 0)) {
444 pull_ucs2(NULL, dest, str->str.buffer, maxlen, str->uni_str_len*2,
449 /*******************************************************************
450 Duplicate a UNISTR2 string into a null terminated char*
451 using a talloc context.
452 ********************************************************************/
454 char *unistr2_to_ascii_talloc(TALLOC_CTX *ctx, const UNISTR2 *str)
458 if (!str || !str->buffer) {
461 if (pull_ucs2_base_talloc(ctx,
466 STR_NOALIGN) == (size_t)-1) {
472 /*******************************************************************
473 Return a string for displaying a UNISTR2. Guarentees to return a
474 valid string - "" if nothing else.
475 Changed to use talloc_tos() under the covers.... JRA.
476 ********************************************************************/
478 const char *unistr2_static(const UNISTR2 *str)
482 if ((str == NULL) || (str->uni_str_len == 0)) {
486 dest = unistr2_to_ascii_talloc(talloc_tos(), str);
494 /*******************************************************************
495 Convert a wchar to upper case.
496 ********************************************************************/
498 smb_ucs2_t toupper_w(smb_ucs2_t val)
500 return upcase_table[SVAL(&val,0)];
503 /*******************************************************************
504 Convert a wchar to lower case.
505 ********************************************************************/
507 smb_ucs2_t tolower_w( smb_ucs2_t val )
509 return lowcase_table[SVAL(&val,0)];
512 /*******************************************************************
513 Determine if a character is lowercase.
514 ********************************************************************/
516 bool islower_w(smb_ucs2_t c)
518 return upcase_table[SVAL(&c,0)] != c;
521 /*******************************************************************
522 Determine if a character is uppercase.
523 ********************************************************************/
525 bool isupper_w(smb_ucs2_t c)
527 return lowcase_table[SVAL(&c,0)] != c;
530 /*******************************************************************
531 Determine if a character is valid in a 8.3 name.
532 ********************************************************************/
534 bool isvalid83_w(smb_ucs2_t c)
536 return valid_table[SVAL(&c,0)] != 0;
539 /*******************************************************************
540 Count the number of characters in a smb_ucs2_t string.
541 ********************************************************************/
543 size_t strlen_w(const smb_ucs2_t *src)
548 for(len = 0; *(COPY_UCS2_CHAR(&c,src)); src++, len++) {
555 /*******************************************************************
556 Count up to max number of characters in a smb_ucs2_t string.
557 ********************************************************************/
559 size_t strnlen_w(const smb_ucs2_t *src, size_t max)
564 for(len = 0; (len < max) && *(COPY_UCS2_CHAR(&c,src)); src++, len++) {
571 /*******************************************************************
573 ********************************************************************/
575 smb_ucs2_t *strchr_w(const smb_ucs2_t *s, smb_ucs2_t c)
578 while (*(COPY_UCS2_CHAR(&cp,s))) {
580 return (smb_ucs2_t *)s;
585 return (smb_ucs2_t *)s;
591 smb_ucs2_t *strchr_wa(const smb_ucs2_t *s, char c)
593 return strchr_w(s, UCS2_CHAR(c));
596 /*******************************************************************
598 ********************************************************************/
600 smb_ucs2_t *strrchr_w(const smb_ucs2_t *s, smb_ucs2_t c)
603 const smb_ucs2_t *p = s;
604 int len = strlen_w(s);
611 if (c == *(COPY_UCS2_CHAR(&cp,p))) {
612 return (smb_ucs2_t *)p;
618 /*******************************************************************
619 Wide version of strrchr that returns after doing strrchr 'n' times.
620 ********************************************************************/
622 smb_ucs2_t *strnrchr_w(const smb_ucs2_t *s, smb_ucs2_t c, unsigned int n)
625 const smb_ucs2_t *p = s;
626 int len = strlen_w(s);
628 if (len == 0 || !n) {
633 if (c == *(COPY_UCS2_CHAR(&cp,p))) {
638 return (smb_ucs2_t *)p;
644 /*******************************************************************
646 ********************************************************************/
648 smb_ucs2_t *strstr_w(const smb_ucs2_t *s, const smb_ucs2_t *ins)
653 if (!s || !*s || !ins || !*ins) {
657 inslen = strlen_w(ins);
660 while ((r = strchr_w(r, *ins))) {
661 if (strncmp_w(r, ins, inslen) == 0) {
670 /*******************************************************************
671 Convert a string to lower case.
672 return True if any char is converted
673 ********************************************************************/
675 bool strlower_w(smb_ucs2_t *s)
680 while (*(COPY_UCS2_CHAR(&cp,s))) {
681 smb_ucs2_t v = tolower_w(cp);
683 COPY_UCS2_CHAR(s,&v);
691 /*******************************************************************
692 Convert a string to upper case.
693 return True if any char is converted
694 ********************************************************************/
696 bool strupper_w(smb_ucs2_t *s)
700 while (*(COPY_UCS2_CHAR(&cp,s))) {
701 smb_ucs2_t v = toupper_w(cp);
703 COPY_UCS2_CHAR(s,&v);
711 /*******************************************************************
712 Convert a string to "normal" form.
713 ********************************************************************/
715 void strnorm_w(smb_ucs2_t *s, int case_default)
717 if (case_default == CASE_UPPER) {
724 int strcmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b)
728 while ((*(COPY_UCS2_CHAR(&cpb,b))) && (*(COPY_UCS2_CHAR(&cpa,a)) == cpb)) {
732 return (*(COPY_UCS2_CHAR(&cpa,a)) - *(COPY_UCS2_CHAR(&cpb,b)));
733 /* warning: if *a != *b and both are not 0 we return a random
734 greater or lesser than 0 number not realted to which
738 int strncmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b, size_t len)
743 while ((n < len) && (*(COPY_UCS2_CHAR(&cpb,b))) && (*(COPY_UCS2_CHAR(&cpa,a)) == cpb)) {
748 return (len - n)?(*(COPY_UCS2_CHAR(&cpa,a)) - *(COPY_UCS2_CHAR(&cpb,b))):0;
751 /*******************************************************************
752 Case insensitive string comparison.
753 ********************************************************************/
755 int strcasecmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b)
759 while ((*COPY_UCS2_CHAR(&cpb,b)) && toupper_w(*(COPY_UCS2_CHAR(&cpa,a))) == toupper_w(cpb)) {
763 return (tolower_w(*(COPY_UCS2_CHAR(&cpa,a))) - tolower_w(*(COPY_UCS2_CHAR(&cpb,b))));
766 /*******************************************************************
767 Case insensitive string comparison, length limited.
768 ********************************************************************/
770 int strncasecmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b, size_t len)
775 while ((n < len) && *COPY_UCS2_CHAR(&cpb,b) && (toupper_w(*(COPY_UCS2_CHAR(&cpa,a))) == toupper_w(cpb))) {
780 return (len - n)?(tolower_w(*(COPY_UCS2_CHAR(&cpa,a))) - tolower_w(*(COPY_UCS2_CHAR(&cpb,b)))):0;
783 /*******************************************************************
785 ********************************************************************/
787 bool strequal_w(const smb_ucs2_t *s1, const smb_ucs2_t *s2)
796 return(strcasecmp_w(s1,s2)==0);
799 /*******************************************************************
800 Compare 2 strings up to and including the nth char.
801 ******************************************************************/
803 bool strnequal_w(const smb_ucs2_t *s1,const smb_ucs2_t *s2,size_t n)
808 if (!s1 || !s2 || !n) {
812 return(strncasecmp_w(s1,s2,n)==0);
815 /*******************************************************************
817 ********************************************************************/
819 smb_ucs2_t *strdup_w(const smb_ucs2_t *src)
821 return strndup_w(src, 0);
824 /* if len == 0 then duplicate the whole string */
826 smb_ucs2_t *strndup_w(const smb_ucs2_t *src, size_t len)
833 dest = SMB_MALLOC_ARRAY(smb_ucs2_t, len + 1);
835 DEBUG(0,("strdup_w: out of memory!\n"));
839 memcpy(dest, src, len * sizeof(smb_ucs2_t));
844 /*******************************************************************
845 Copy a string with max len.
846 ********************************************************************/
848 smb_ucs2_t *strncpy_w(smb_ucs2_t *dest, const smb_ucs2_t *src, const size_t max)
857 for (len = 0; (*COPY_UCS2_CHAR(&cp,(src+len))) && (len < max); len++) {
858 cp = *COPY_UCS2_CHAR(dest+len,src+len);
861 for ( /*nothing*/ ; len < max; len++ ) {
862 cp = *COPY_UCS2_CHAR(dest+len,&cp);
868 /*******************************************************************
869 Append a string of len bytes and add a terminator.
870 ********************************************************************/
872 smb_ucs2_t *strncat_w(smb_ucs2_t *dest, const smb_ucs2_t *src, const size_t max)
882 start = strlen_w(dest);
883 len = strnlen_w(src, max);
885 memcpy(&dest[start], src, len*sizeof(smb_ucs2_t));
886 z = *COPY_UCS2_CHAR(dest+start+len,&z);
891 smb_ucs2_t *strcat_w(smb_ucs2_t *dest, const smb_ucs2_t *src)
901 start = strlen_w(dest);
904 memcpy(&dest[start], src, len*sizeof(smb_ucs2_t));
905 z = *COPY_UCS2_CHAR(dest+start+len,&z);
911 /*******************************************************************
912 Replace any occurence of oldc with newc in unicode string.
913 ********************************************************************/
915 void string_replace_w(smb_ucs2_t *s, smb_ucs2_t oldc, smb_ucs2_t newc)
919 for(;*(COPY_UCS2_CHAR(&cp,s));s++) {
921 COPY_UCS2_CHAR(s,&newc);
926 /*******************************************************************
928 ********************************************************************/
930 bool trim_string_w(smb_ucs2_t *s, const smb_ucs2_t *front,
931 const smb_ucs2_t *back)
934 size_t len, front_len, back_len;
942 if (front && *front) {
943 front_len = strlen_w(front);
944 while (len && strncmp_w(s, front, front_len) == 0) {
945 memmove(s, (s + front_len), (len - front_len + 1) * sizeof(smb_ucs2_t));
952 back_len = strlen_w(back);
953 while (len && strncmp_w((s + (len - back_len)), back, back_len) == 0) {
954 s[len - back_len] = 0;
964 The *_wa() functions take a combination of 7 bit ascii
965 and wide characters They are used so that you can use string
966 functions combining C string constants with ucs2 strings
968 The char* arguments must NOT be multibyte - to be completely sure
969 of this only pass string constants */
971 int strcmp_wa(const smb_ucs2_t *a, const char *b)
975 while (*b && *(COPY_UCS2_CHAR(&cp,a)) == UCS2_CHAR(*b)) {
979 return (*(COPY_UCS2_CHAR(&cp,a)) - UCS2_CHAR(*b));
982 int strncmp_wa(const smb_ucs2_t *a, const char *b, size_t len)
987 while ((n < len) && *b && *(COPY_UCS2_CHAR(&cp,a)) == UCS2_CHAR(*b)) {
992 return (len - n)?(*(COPY_UCS2_CHAR(&cp,a)) - UCS2_CHAR(*b)):0;
995 smb_ucs2_t *strpbrk_wa(const smb_ucs2_t *s, const char *p)
999 while (*(COPY_UCS2_CHAR(&cp,s))) {
1001 for (i=0; p[i] && cp != UCS2_CHAR(p[i]); i++)
1004 return (smb_ucs2_t *)s;
1011 smb_ucs2_t *strstr_wa(const smb_ucs2_t *s, const char *ins)
1020 inslen = strlen(ins);
1021 r = (smb_ucs2_t *)s;
1023 while ((r = strchr_w(r, UCS2_CHAR(*ins)))) {
1024 if (strncmp_wa(r, ins, inslen) == 0)
1032 /*******************************************************************
1033 Returns the length in number of wide characters.
1034 ******************************************************************/
1036 int unistrlen(uint16 *s)
1044 for (len=0; SVAL(s,0); s++,len++) {
1051 /*******************************************************************
1052 Strcpy for unicode strings. Returns length (in num of wide chars).
1054 ********************************************************************/
1056 int unistrcpy(uint16 *dst, uint16 *src)
1060 while (SVAL(src,0)) {
1070 * Samba ucs2 type to UNISTR2 conversion
1072 * @param ctx Talloc context to create the dst strcture (if null) and the
1073 * contents of the unicode string.
1074 * @param dst UNISTR2 destination. If equals null, then it's allocated.
1075 * @param src smb_ucs2_t source.
1076 * @param max_len maximum number of unicode characters to copy. If equals
1077 * null, then null-termination of src is taken
1079 * @return copied UNISTR2 destination
1082 UNISTR2* ucs2_to_unistr2(TALLOC_CTX *ctx, UNISTR2* dst, smb_ucs2_t* src)
1090 len = strlen_w(src);
1092 /* allocate UNISTR2 destination if not given */
1094 dst = TALLOC_P(ctx, UNISTR2);
1099 dst->buffer = TALLOC_ARRAY(ctx, uint16, len + 1);
1104 /* set UNISTR2 parameters */
1105 dst->uni_max_len = len + 1;
1107 dst->uni_str_len = len;
1109 /* copy the actual unicode string */
1110 strncpy_w(dst->buffer, src, dst->uni_max_len);
1115 /*************************************************************
1116 ascii only toupper - saves the need for smbd to be in C locale.
1117 *************************************************************/
1119 int toupper_ascii(int c)
1121 smb_ucs2_t uc = toupper_w(UCS2_CHAR(c));
1122 return UCS2_TO_CHAR(uc);
1125 /*************************************************************
1126 ascii only tolower - saves the need for smbd to be in C locale.
1127 *************************************************************/
1129 int tolower_ascii(int c)
1131 smb_ucs2_t uc = tolower_w(UCS2_CHAR(c));
1132 return UCS2_TO_CHAR(uc);
1135 /*************************************************************
1136 ascii only isupper - saves the need for smbd to be in C locale.
1137 *************************************************************/
1139 int isupper_ascii(int c)
1141 return isupper_w(UCS2_CHAR(c));
1144 /*************************************************************
1145 ascii only islower - saves the need for smbd to be in C locale.
1146 *************************************************************/
1148 int islower_ascii(int c)
1150 return islower_w(UCS2_CHAR(c));