diff options
Diffstat (limited to 'source3/lib/util_unistr.c')
| -rw-r--r-- | source3/lib/util_unistr.c | 205 |
1 files changed, 182 insertions, 23 deletions
diff --git a/source3/lib/util_unistr.c b/source3/lib/util_unistr.c index d0e2a119b8..287472ad65 100644 --- a/source3/lib/util_unistr.c +++ b/source3/lib/util_unistr.c @@ -242,6 +242,52 @@ smb_ucs2_t *strchr_w(const smb_ucs2_t *s, smb_ucs2_t c) return NULL; } +smb_ucs2_t *strrchr_w(const smb_ucs2_t *s, smb_ucs2_t c) +{ + const smb_ucs2_t *p = s; + int len = strlen_w(s); + if (len == 0) return NULL; + p += (len - 1); + do { + if (c == *p) 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 slen, inslen; + + if (!s || !*s || !ins || !*ins) return NULL; + slen = strlen_w(s); + 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; +} + +smb_ucs2_t *strstr_wa(const smb_ucs2_t *s, const char *ins) +{ + smb_ucs2_t *r; + size_t slen, inslen; + + if (!s || !*s || !ins || !*ins) return NULL; + slen = strlen_w(s); + 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; +} /******************************************************************* Convert a string to lower case. @@ -280,6 +326,18 @@ BOOL strupper_w(smb_ucs2_t *s) } /******************************************************************* + convert a string to "normal" form +********************************************************************/ +void strnorm_w(smb_ucs2_t *s) +{ + extern int case_default; + if (case_default == CASE_UPPER) + strupper_w(s); + else + strlower_w(s); +} + +/******************************************************************* case insensitive string comparison ********************************************************************/ int strcasecmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b) @@ -288,23 +346,60 @@ int strcasecmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b) return (tolower_w(*a) - tolower_w(*b)); } +/******************************************************************* +case insensitive string comparison, lenght limited +********************************************************************/ +int strncasecmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b, size_t len) +{ + size_t n = 0; + while ((n < len) && *b && (toupper_w(*a) == toupper_w(*b))) { a++; b++; n++; } + return (len - n)?(tolower_w(*a) - tolower_w(*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; - uint32 len; - len = strlen_w(src) + 1; - dest = (smb_ucs2_t *)malloc(len*sizeof(smb_ucs2_t)); + if (!len) len = strlen_w(src); + dest = (smb_ucs2_t *)malloc((len + 1) * sizeof(smb_ucs2_t)); if (!dest) { DEBUG(0,("strdup_w: out of memory!\n")); return NULL; } - memcpy(dest, src, len*sizeof(smb_ucs2_t)); + memcpy(dest, src, len * sizeof(smb_ucs2_t)); + dest[len] = 0; return dest; } @@ -368,33 +463,33 @@ void pstrcpy_wa(smb_ucs2_t *dest, const char *src) } } -int strcmp_wa(const smb_ucs2_t *a, const char *b) +int strcmp_w(const smb_ucs2_t *a, const smb_ucs2_t *b) { - while (*b && *a == UCS2_CHAR(*b)) { a++; b++; } - return (*a - UCS2_CHAR(*b)); + while (*b && *a == *b) { a++; b++; } + return (*a - *b); + /* warning: if *a != *b and both are not 0 we retrun 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) +{ + size_t n = 0; + while ((n < len) && *b && *a == *b) { a++; b++; n++;} + return (len - n)?(*a - *b):0; +} - -smb_ucs2_t *strchr_wa(const smb_ucs2_t *s, char c) +int strcmp_wa(const smb_ucs2_t *a, const char *b) { - while (*s != 0) { - if (UCS2_CHAR(c) == *s) return (smb_ucs2_t *)s; - s++; - } - return NULL; + while (*b && *a == UCS2_CHAR(*b)) { a++; b++; } + return (*a - UCS2_CHAR(*b)); } -smb_ucs2_t *strrchr_wa(const smb_ucs2_t *s, char c) +int strncmp_wa(const smb_ucs2_t *a, const char *b, size_t len) { - const smb_ucs2_t *p = s; - int len = strlen_w(s); - if (len == 0) return NULL; - p += (len-1); - do { - if (UCS2_CHAR(c) == *p) return (smb_ucs2_t *)p; - } while (p-- != s); - return NULL; + size_t n = 0; + while ((n < len) && *b && *a == UCS2_CHAR(*b)) { a++; b++; n++;} + return (len - n)?(*a - UCS2_CHAR(*b)):0; } smb_ucs2_t *strpbrk_wa(const smb_ucs2_t *s, const char *p) @@ -452,3 +547,67 @@ smb_ucs2_t *strncat_wa(smb_ucs2_t *dest, const char *src, const size_t max) SAFE_FREE(ucs2_src); 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) +{ + for(;*s;s++) { + if(*s==oldc) *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, lw, front_len, flw, back_len, blw; + + if (!s || !*s) return False; + + len = strlen_w(s); + + if (front && *front) { + front_len = strlen_w(front); + flw = front_len * sizeof(smb_ucs2_t); + lw = (len + 1) * sizeof(smb_ucs2_t); + while (len && strncmp_w(s, front, front_len) == 0) { + memcpy(s, s + flw, lw - flw); + len -= front_len; + lw -= flw; + ret = True; + } + } + + if (back && *back) { + back_len = strlen_w(back); + blw = back_len * sizeof(smb_ucs2_t); + lw = len * sizeof(smb_ucs2_t); + while (len && strncmp_w(s + lw - blw, back, back_len) == 0) { + s[len - back_len] = 0; + len -= back_len; + lw -= blw; + ret = True; + } + } + + return ret; +} + +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); +} |