diff options
| -rw-r--r-- | source3/lib/util_str.c | 976 | ||||
| -rw-r--r-- | source3/lib/util_unistr.c | 186 |
2 files changed, 1162 insertions, 0 deletions
diff --git a/source3/lib/util_str.c b/source3/lib/util_str.c new file mode 100644 index 0000000000..7eb1494382 --- /dev/null +++ b/source3/lib/util_str.c @@ -0,0 +1,976 @@ +/* + Unix SMB/Netbios implementation. + Version 1.9. + Samba utility functions + Copyright (C) Andrew Tridgell 1992-1998 + + 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" + +extern int DEBUGLEVEL; + +static char *last_ptr=NULL; + +void set_first_token(char *ptr) +{ + last_ptr = ptr; +} + +/**************************************************************************** + Get the next token from a string, return False if none found + handles double-quotes. +Based on a routine by GJC@VILLAGE.COM. +Extensively modified by Andrew.Tridgell@anu.edu.au +****************************************************************************/ +BOOL next_token(char **ptr,char *buff,char *sep, int bufsize) +{ + char *s; + BOOL quoted; + int len=1; + + if (!ptr) ptr = &last_ptr; + if (!ptr) return(False); + + s = *ptr; + + /* default to simple separators */ + if (!sep) sep = " \t\n\r"; + + /* find the first non sep char */ + while(*s && strchr(sep,*s)) s++; + + /* nothing left? */ + if (! *s) return(False); + + /* copy over the token */ + for (quoted = False; len < bufsize && *s && (quoted || !strchr(sep,*s)); s++) + { + if (*s == '\"') { + quoted = !quoted; + } else { + len++; + *buff++ = *s; + } + } + + *ptr = (*s) ? s+1 : s; + *buff = 0; + last_ptr = *ptr; + + return(True); +} + +/**************************************************************************** +Convert list of tokens to array; dependent on above routine. +Uses last_ptr from above - bit of a hack. +****************************************************************************/ +char **toktocliplist(int *ctok, char *sep) +{ + char *s=last_ptr; + int ictok=0; + char **ret, **iret; + + if (!sep) sep = " \t\n\r"; + + while(*s && strchr(sep,*s)) s++; + + /* nothing left? */ + if (!*s) return(NULL); + + do { + ictok++; + while(*s && (!strchr(sep,*s))) s++; + while(*s && strchr(sep,*s)) *s++=0; + } while(*s); + + *ctok=ictok; + s=last_ptr; + + if (!(ret=iret=malloc(ictok*sizeof(char *)))) return NULL; + + while(ictok--) { + *iret++=s; + while(*s++); + while(!*s) s++; + } + + return ret; +} + + +/******************************************************************* + case insensitive string compararison +********************************************************************/ +int StrCaseCmp(char *s, char *t) +{ + /* compare until we run out of string, either t or s, or find a difference */ + /* We *must* use toupper rather than tolower here due to the + asynchronous upper to lower mapping. + */ +#if !defined(KANJI_WIN95_COMPATIBILITY) + /* + * For completeness we should put in equivalent code for code pages + * 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but + * doubt anyone wants Samba to behave differently from Win95 and WinNT + * here. They both treat full width ascii characters as case senstive + * filenames (ie. they don't do the work we do here). + * JRA. + */ + + if(lp_client_code_page() == KANJI_CODEPAGE) + { + /* Win95 treats full width ascii characters as case sensitive. */ + int diff; + for (;;) + { + if (!*s || !*t) + return toupper (*s) - toupper (*t); + else if (is_sj_alph (*s) && is_sj_alph (*t)) + { + diff = sj_toupper2 (*(s+1)) - sj_toupper2 (*(t+1)); + if (diff) + return diff; + s += 2; + t += 2; + } + else if (is_shift_jis (*s) && is_shift_jis (*t)) + { + diff = ((int) (unsigned char) *s) - ((int) (unsigned char) *t); + if (diff) + return diff; + diff = ((int) (unsigned char) *(s+1)) - ((int) (unsigned char) *(t+1)); + if (diff) + return diff; + s += 2; + t += 2; + } + else if (is_shift_jis (*s)) + return 1; + else if (is_shift_jis (*t)) + return -1; + else + { + diff = toupper (*s) - toupper (*t); + if (diff) + return diff; + s++; + t++; + } + } + } + else +#endif /* KANJI_WIN95_COMPATIBILITY */ + { + while (*s && *t && toupper(*s) == toupper(*t)) + { + s++; + t++; + } + + return(toupper(*s) - toupper(*t)); + } +} + +/******************************************************************* + case insensitive string compararison, length limited +********************************************************************/ +int StrnCaseCmp(char *s, char *t, int n) +{ + /* compare until we run out of string, either t or s, or chars */ + /* We *must* use toupper rather than tolower here due to the + asynchronous upper to lower mapping. + */ +#if !defined(KANJI_WIN95_COMPATIBILITY) + /* + * For completeness we should put in equivalent code for code pages + * 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but + * doubt anyone wants Samba to behave differently from Win95 and WinNT + * here. They both treat full width ascii characters as case senstive + * filenames (ie. they don't do the work we do here). + * JRA. + */ + + if(lp_client_code_page() == KANJI_CODEPAGE) + { + /* Win95 treats full width ascii characters as case sensitive. */ + int diff; + for (;n > 0;) + { + if (!*s || !*t) + return toupper (*s) - toupper (*t); + else if (is_sj_alph (*s) && is_sj_alph (*t)) + { + diff = sj_toupper2 (*(s+1)) - sj_toupper2 (*(t+1)); + if (diff) + return diff; + s += 2; + t += 2; + n -= 2; + } + else if (is_shift_jis (*s) && is_shift_jis (*t)) + { + diff = ((int) (unsigned char) *s) - ((int) (unsigned char) *t); + if (diff) + return diff; + diff = ((int) (unsigned char) *(s+1)) - ((int) (unsigned char) *(t+1)); + if (diff) + return diff; + s += 2; + t += 2; + n -= 2; + } + else if (is_shift_jis (*s)) + return 1; + else if (is_shift_jis (*t)) + return -1; + else + { + diff = toupper (*s) - toupper (*t); + if (diff) + return diff; + s++; + t++; + n--; + } + } + return 0; + } + else +#endif /* KANJI_WIN95_COMPATIBILITY */ + { + while (n && *s && *t && toupper(*s) == toupper(*t)) + { + s++; + t++; + n--; + } + + /* not run out of chars - strings are different lengths */ + if (n) + return(toupper(*s) - toupper(*t)); + + /* identical up to where we run out of chars, + and strings are same length */ + return(0); + } +} + +/******************************************************************* + compare 2 strings +********************************************************************/ +BOOL strequal(char *s1, char *s2) +{ + if (s1 == s2) return(True); + if (!s1 || !s2) return(False); + + return(StrCaseCmp(s1,s2)==0); +} + +/******************************************************************* + compare 2 strings up to and including the nth char. + ******************************************************************/ +BOOL strnequal(char *s1,char *s2,int n) +{ + if (s1 == s2) return(True); + if (!s1 || !s2 || !n) return(False); + + return(StrnCaseCmp(s1,s2,n)==0); +} + +/******************************************************************* + compare 2 strings (case sensitive) +********************************************************************/ +BOOL strcsequal(char *s1,char *s2) +{ + if (s1 == s2) return(True); + if (!s1 || !s2) return(False); + + return(strcmp(s1,s2)==0); +} + + +/******************************************************************* + convert a string to lower case +********************************************************************/ +void strlower(char *s) +{ + while (*s) + { +#if !defined(KANJI_WIN95_COMPATIBILITY) + /* + * For completeness we should put in equivalent code for code pages + * 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but + * doubt anyone wants Samba to behave differently from Win95 and WinNT + * here. They both treat full width ascii characters as case senstive + * filenames (ie. they don't do the work we do here). + * JRA. + */ + + if(lp_client_code_page() == KANJI_CODEPAGE) + { + /* Win95 treats full width ascii characters as case sensitive. */ + if (is_shift_jis (*s)) + { + if (is_sj_upper (s[0], s[1])) + s[1] = sj_tolower2 (s[1]); + s += 2; + } + else if (is_kana (*s)) + { + s++; + } + else + { + if (isupper(*s)) + *s = tolower(*s); + s++; + } + } + else +#endif /* KANJI_WIN95_COMPATIBILITY */ + { + int skip = skip_multibyte_char( *s ); + if( skip != 0 ) + s += skip; + else + { + if (isupper(*s)) + *s = tolower(*s); + s++; + } + } + } +} + +/******************************************************************* + convert a string to upper case +********************************************************************/ +void strupper(char *s) +{ + while (*s) + { +#if !defined(KANJI_WIN95_COMPATIBILITY) + /* + * For completeness we should put in equivalent code for code pages + * 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but + * doubt anyone wants Samba to behave differently from Win95 and WinNT + * here. They both treat full width ascii characters as case senstive + * filenames (ie. they don't do the work we do here). + * JRA. + */ + + if(lp_client_code_page() == KANJI_CODEPAGE) + { + /* Win95 treats full width ascii characters as case sensitive. */ + if (is_shift_jis (*s)) + { + if (is_sj_lower (s[0], s[1])) + s[1] = sj_toupper2 (s[1]); + s += 2; + } + else if (is_kana (*s)) + { + s++; + } + else + { + if (islower(*s)) + *s = toupper(*s); + s++; + } + } + else +#endif /* KANJI_WIN95_COMPATIBILITY */ + { + int skip = skip_multibyte_char( *s ); + if( skip != 0 ) + s += skip; + else + { + if (islower(*s)) + *s = toupper(*s); + s++; + } + } + } +} + +/******************************************************************* + convert a string to "normal" form +********************************************************************/ +void strnorm(char *s) +{ + extern int case_default; + if (case_default == CASE_UPPER) + strupper(s); + else + strlower(s); +} + +/******************************************************************* +check if a string is in "normal" case +********************************************************************/ +BOOL strisnormal(char *s) +{ + extern int case_default; + if (case_default == CASE_UPPER) + return(!strhaslower(s)); + + return(!strhasupper(s)); +} + + +/**************************************************************************** + string replace +****************************************************************************/ +void string_replace(char *s,char oldc,char newc) +{ + int skip; + while (*s) + { + skip = skip_multibyte_char( *s ); + if( skip != 0 ) + s += skip; + else + { + if (oldc == *s) + *s = newc; + s++; + } + } +} + + +/******************************************************************* +skip past some strings in a buffer +********************************************************************/ +char *skip_string(char *buf,int n) +{ + while (n--) + buf += strlen(buf) + 1; + return(buf); +} + +/******************************************************************* + Count the number of characters in a string. Normally this will + be the same as the number of bytes in a string for single byte strings, + but will be different for multibyte. + 16.oct.98, jdblair@cobaltnet.com. +********************************************************************/ + +size_t str_charnum(char *s) +{ + size_t len = 0; + + while (*s != '\0') { + int skip = skip_multibyte_char(*s); + s += (skip ? skip : 1); + len++; + } + return len; +} + +/******************************************************************* +trim the specified elements off the front and back of a string +********************************************************************/ + +BOOL trim_string(char *s,char *front,char *back) +{ + BOOL ret = False; + size_t front_len = (front && *front) ? strlen(front) : 0; + size_t back_len = (back && *back) ? strlen(back) : 0; + size_t s_len; + + while (front_len && strncmp(s, front, front_len) == 0) + { + char *p = s; + ret = True; + while (1) + { + if (!(*p = p[front_len])) + break; + p++; + } + } + + /* + * We split out the multibyte code page + * case here for speed purposes. Under a + * multibyte code page we need to walk the + * string forwards only and multiple times. + * Thanks to John Blair for finding this + * one. JRA. + */ + + if(back_len) + { + if(!is_multibyte_codepage()) + { + s_len = strlen(s); + while ((s_len >= back_len) && + (strncmp(s + s_len - back_len, back, back_len)==0)) + { + ret = True; + s[s_len - back_len] = '\0'; + s_len = strlen(s); + } + } + else + { + + /* + * Multibyte code page case. + * Keep going through the string, trying + * to match the 'back' string with the end + * of the string. If we get a match, truncate + * 'back' off the end of the string and + * go through the string again from the + * start. Keep doing this until we have + * gone through the string with no match + * at the string end. + */ + + size_t mb_back_len = str_charnum(back); + size_t mb_s_len = str_charnum(s); + + while(mb_s_len >= mb_back_len) + { + size_t charcount = 0; + char *mbp = s; + + while(charcount < (mb_s_len - mb_back_len)) + { + size_t skip = skip_multibyte_char(*mbp); + mbp += (skip ? skip : 1); + charcount++; + } + + /* + * mbp now points at mb_back_len multibyte + * characters from the end of s. + */ + + if(strcmp(mbp, back) == 0) + { + ret = True; + *mbp = '\0'; + mb_s_len = str_charnum(s); + mbp = s; + } + else + break; + } /* end while mb_s_len... */ + } /* end else .. */ + } /* end if back_len .. */ + + return(ret); +} + + +/**************************************************************************** +does a string have any uppercase chars in it? +****************************************************************************/ +BOOL strhasupper(char *s) +{ + while (*s) + { +#if !defined(KANJI_WIN95_COMPATIBILITY) + /* + * For completeness we should put in equivalent code for code pages + * 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but + * doubt anyone wants Samba to behave differently from Win95 and WinNT + * here. They both treat full width ascii characters as case senstive + * filenames (ie. they don't do the work we do here). + * JRA. + */ + + if(lp_client_code_page() == KANJI_CODEPAGE) + { + /* Win95 treats full width ascii characters as case sensitive. */ + if (is_shift_jis (*s)) + s += 2; + else if (is_kana (*s)) + s++; + else + { + if (isupper(*s)) + return(True); + s++; + } + } + else +#endif /* KANJI_WIN95_COMPATIBILITY */ + { + int skip = skip_multibyte_char( *s ); + if( skip != 0 ) + s += skip; + else { + if (isupper(*s)) + return(True); + s++; + } + } + } + return(False); +} + +/**************************************************************************** +does a string have any lowercase chars in it? +****************************************************************************/ +BOOL strhaslower(char *s) +{ + while (*s) + { +#if !defined(KANJI_WIN95_COMPATIBILITY) + /* + * For completeness we should put in equivalent code for code pages + * 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but + * doubt anyone wants Samba to behave differently from Win95 and WinNT + * here. They both treat full width ascii characters as case senstive + * filenames (ie. they don't do the work we do here). + * JRA. + */ + + if(lp_client_code_page() == KANJI_CODEPAGE) + { + /* Win95 treats full width ascii characters as case sensitive. */ + if (is_shift_jis (*s)) + { + if (is_sj_upper (s[0], s[1])) + return(True); + if (is_sj_lower (s[0], s[1])) + return (True); + s += 2; + } + else if (is_kana (*s)) + { + s++; + } + else + { + if (islower(*s)) + return(True); + s++; + } + } + else +#endif /* KANJI_WIN95_COMPATIBILITY */ + { + int skip = skip_multibyte_char( *s ); + if( skip != 0 ) + s += skip; + else { + if (islower(*s)) + return(True); + s++; + } + } + } + return(False); +} + +/**************************************************************************** +find the number of chars in a string +****************************************************************************/ +int count_chars(char *s,char c) +{ + int count=0; + +#if !defined(KANJI_WIN95_COMPATIBILITY) + /* + * For completeness we should put in equivalent code for code pages + * 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but + * doubt anyone wants Samba to behave differently from Win95 and WinNT + * here. They both treat full width ascii characters as case senstive + * filenames (ie. they don't do the work we do here). + * JRA. + */ + + if(lp_client_code_page() == KANJI_CODEPAGE) + { + /* Win95 treats full width ascii characters as case sensitive. */ + while (*s) + { + if (is_shift_jis (*s)) + s += 2; + else + { + if (*s == c) + count++; + s++; + } + } + } + else +#endif /* KANJI_WIN95_COMPATIBILITY */ + { + while (*s) + { + int skip = skip_multibyte_char( *s ); + if( skip != 0 ) + s += skip; + else { + if (*s == c) + count++; + s++; + } + } + } + return(count); +} + + + +/******************************************************************* +safe string copy into a known length string. maxlength does not +include the terminating zero. +********************************************************************/ +char *safe_strcpy(char *dest,const char *src, int maxlength) +{ + int len; + + if (!dest) { + DEBUG(0,("ERROR: NULL dest in safe_strcpy\n")); + return NULL; + } + + if (!src) { + *dest = 0; + return dest; + } + + len = strlen(src); + + if (len > maxlength) { + DEBUG(0,("ERROR: string overflow by %d in safe_strcpy [%.50s]\n", + len-maxlength, src)); + len = maxlength; + } + + memcpy(dest, src, len); + dest[len] = 0; + return dest; +} + +/******************************************************************* +safe string cat into a string. maxlength does not +include the terminating zero. +********************************************************************/ +char *safe_strcat(char *dest, char *src, int maxlength) +{ + int src_len, dest_len; + + if (!dest) { + DEBUG(0,("ERROR: NULL dest in safe_strcat\n")); + return NULL; + } + + if (!src) { + return dest; + } + + src_len = strlen(src); + dest_len = strlen(dest); + + if (src_len + dest_len > maxlength) { + DEBUG(0,("ERROR: string overflow by %d in safe_strcat [%.50s]\n", + src_len + dest_len - maxlength, src)); + src_len = maxlength - dest_len; + } + + memcpy(&dest[dest_len], src, src_len); + dest[dest_len + src_len] = 0; + return dest; +} + +/**************************************************************************** +this is a safer strcpy(), meant to prevent core dumps when nasty things happen +****************************************************************************/ +char *StrCpy(char *dest,char *src) +{ + char *d = dest; + + /* I don't want to get lazy with these ... */ + SMB_ASSERT(dest && src); + + if (!dest) return(NULL); + if (!src) { + *dest = 0; + return(dest); + } + while ((*d++ = *src++)) ; + return(dest); +} + +/**************************************************************************** +like strncpy but always null terminates. Make sure there is room! +****************************************************************************/ +char *StrnCpy(char *dest,char *src,int n) +{ + char *d = dest; + if (!dest) return(NULL); + if (!src) { + *dest = 0; + return(dest); + } + while (n-- && (*d++ = *src++)) ; + *d = 0; + return(dest); +} + + +/**************************************************************************** +like strncpy but copies up to the character marker. always null terminates. +returns a pointer to the character marker in the source string (src). +****************************************************************************/ +char *strncpyn(char *dest, char *src,int n, char c) +{ + char *p; + int str_len; + + p = strchr(src, c); + if (p == NULL) + { + DEBUG(5, ("strncpyn: separator character (%c) not found\n", c)); + return NULL; + } + + str_len = PTR_DIFF(p, src); + strncpy(dest, src, MIN(n, str_len)); + dest[str_len] = '\0'; + + return p; +} + + +/**************************************************************************** +check if a string is part of a list +****************************************************************************/ +BOOL in_list(char *s,char *list,BOOL casesensitive) +{ + pstring tok; + char *p=list; + + if (!list) return(False); + + while (next_token(&p,tok,LIST_SEP,sizeof(tok))) { + if (casesensitive) { + if (strcmp(tok,s) == 0) + return(True); + } else { + if (StrCaseCmp(tok,s) == 0) + return(True); + } + } + return(False); +} + +/* this is used to prevent lots of mallocs of size 1 */ +static char *null_string = NULL; + +/**************************************************************************** +set a string value, allocing the space for the string +****************************************************************************/ +BOOL string_init(char **dest,char *src) +{ + int l; + if (!src) + src = ""; + + l = strlen(src); + + if (l == 0) + { + if (!null_string) { + if((null_string = (char *)malloc(1)) == NULL) { + DEBUG(0,("string_init: malloc fail for null_string.\n")); + return False; + } + *null_string = 0; + } + *dest = null_string; + } + else + { + (*dest) = (char *)malloc(l+1); + if ((*dest) == NULL) { + DEBUG(0,("Out of memory in string_init\n")); + return False; + } + + pstrcpy(*dest,src); + } + return(True); +} + +/**************************************************************************** +free a string value +****************************************************************************/ +void string_free(char **s) +{ + if (!s || !(*s)) return; + if (*s == null_string) + *s = NULL; + if (*s) free(*s); + *s = NULL; +} + +/**************************************************************************** +set a string value, allocing the space for the string, and deallocating any +existing space +****************************************************************************/ +BOOL string_set(char **dest,char *src) +{ + string_free(dest); + + return(string_init(dest,src)); +} + +/**************************************************************************** +substitute a string for a pattern in another string. Make sure there is +enough room! + +This routine looks for pattern in s and replaces it with +insert. It may do multiple replacements. + +return True if a substitution was done. +****************************************************************************/ +BOOL string_sub(char *s,char *pattern,char *insert) +{ + BOOL ret = False; + char *p; + int ls,lp,li; + + if (!insert || !pattern || !s) return(False); + + ls = strlen(s); + lp = strlen(pattern); + li = strlen(insert); + + if (!*pattern) return(False); + + while (lp <= ls && (p = strstr(s,pattern))) + { + ret = True; + memmove(p+li,p+lp,ls + 1 - (PTR_DIFF(p,s) + lp)); + memcpy(p,insert,li); + s = p + li; + ls = strlen(s); + } + return(ret); +} + diff --git a/source3/lib/util_unistr.c b/source3/lib/util_unistr.c new file mode 100644 index 0000000000..2365090f24 --- /dev/null +++ b/source3/lib/util_unistr.c @@ -0,0 +1,186 @@ +/* + Unix SMB/Netbios implementation. + Version 1.9. + Samba utility functions + Copyright (C) Andrew Tridgell 1992-1998 + + 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" + +/******************************************************************* +write a string in unicoode format +********************************************************************/ +int PutUniCode(char *dst,char *src) +{ + int ret = 0; + while (*src) { + dst[ret++] = src[0]; + dst[ret++] = 0; + src++; + } + dst[ret++]=0; + dst[ret++]=0; + return(ret); +} + +/******************************************************************* +skip past some unicode strings in a buffer +********************************************************************/ +char *skip_unicode_string(char *buf,int n) +{ + while (n--) + { + while (*buf) + buf += 2; + buf += 2; + } + return(buf); +} + +/******************************************************************* +Return a ascii version of a unicode string +Hack alert: uses fixed buffer(s) and only handles ascii strings +********************************************************************/ +#define MAXUNI 1024 +char *unistrn2(uint16 *buf, int len) +{ + static char lbufs[8][MAXUNI]; + static int nexti; + char *lbuf = lbufs[nexti]; + char *p; + + nexti = (nexti+1)%8; + + for (p = lbuf; *buf && p-lbuf < MAXUNI-2 && len > 0; len--, p++, buf++) + { + *p = *buf; + } + + *p = 0; + return lbuf; +} + +static char lbufs[8][MAXUNI]; +static int nexti; +/******************************************************************* +Return a ascii version of a unicode string +Hack alert: uses fixed buffer(s) and only handles ascii strings +********************************************************************/ +#define MAXUNI 1024 +char *unistr2(uint16 *buf) +{ + char *lbuf = lbufs[nexti]; + char *p; + + nexti = (nexti+1)%8; + + for (p = lbuf; *buf && p-lbuf < MAXUNI-2; p++, buf++) + { + *p = *buf; + } + + *p = 0; + return lbuf; +} + +/******************************************************************* +Return a ascii version of a unicode string +********************************************************************/ +char *unistr2_to_str(UNISTR2 *str) +{ + char *lbuf = lbufs[nexti]; + char *p; + uint16 *buf = str->buffer; + int max_size = MIN(sizeof(str->buffer)-2, str->uni_str_len); + + nexti = (nexti+1)%8; + + for (p = lbuf; *buf && p-lbuf < max_size; p++, buf++) + { + *p = *buf; + } + + *p = 0; + return lbuf; +} + +/******************************************************************* +create a null-terminated unicode string from a null-terminated ascii string. +return number of unicode chars copied, excluding the null character. + +only handles ascii strings +********************************************************************/ +#define MAXUNI 1024 +int struni2(uint16 *p, char *buf) +{ + int len = 0; + + if (p == NULL) return 0; + + if (buf != NULL) + { + for (; *buf && len < MAXUNI-2; len++, p++, buf++) + { + *p = *buf; + } + } + + *p = 0; + + return len; +} + +/******************************************************************* +Return a ascii version of a unicode string +Hack alert: uses fixed buffer(s) and only handles ascii strings +********************************************************************/ +#define MAXUNI 1024 +char *unistr(char *buf) +{ + char *lbuf = lbufs[nexti]; + char *p; + + nexti = (nexti+1)%8; + + for (p = lbuf; *buf && p-lbuf < MAXUNI-2; p++, buf += 2) + { + *p = *buf; + } + *p = 0; + return lbuf; +} + + +/******************************************************************* +strcpy for unicode strings. returns length (in num of wide chars) +********************************************************************/ +int unistrcpy(char *dst, char *src) +{ + int num_wchars = 0; + + while (*src) + { + *dst++ = *src++; + *dst++ = *src++; + num_wchars++; + } + *dst++ = 0; + *dst++ = 0; + + return num_wchars; +} + |