static NTSTATUS mangle_get_prefix(const smb_ucs2_t *ucs2_string, smb_ucs2_t **prefix,
smb_ucs2_t **extension, bool allow_wildcards)
{
size_t ext_len;
smb_ucs2_t *p;
*extension = 0;
*prefix = strdup_w(ucs2_string);
if (!*prefix) {
return NT_STATUS_NO_MEMORY;
}
if ((p = strrchr_w(*prefix, UCS2_CHAR('.')))) {
ext_len = strlen_w(p+1);
if ((ext_len > 0) && (ext_len < 4) && (p != *prefix) &&
(NT_STATUS_IS_OK(has_valid_83_chars(p+1,allow_wildcards)))) /* check extension */ {
*p = 0;
*extension = strdup_w(p+1);
if (!*extension) {
SAFE_FREE(*prefix);
return NT_STATUS_NO_MEMORY;
}
}
}
return NT_STATUS_OK;
}
int ms_fnmatch(const char *pattern, const char *string, bool translate_pattern,
bool is_case_sensitive)
{
smb_ucs2_t *p = NULL;
smb_ucs2_t *s = NULL;
int ret, count, i;
struct max_n *max_n = NULL;
struct max_n *max_n_free = NULL;
struct max_n one_max_n;
size_t converted_size;
if (ISDOTDOT(string)) {
string = ".";
}
if (strpbrk(pattern, "<>*?\"") == NULL) {
/* this is not just an optmisation - it is essential
for LANMAN1 correctness */
if (is_case_sensitive) {
return strcmp(pattern, string);
} else {
return StrCaseCmp(pattern, string);
}
}
if (!push_ucs2_talloc(talloc_tos(), &p, pattern, &converted_size)) {
return -1;
}
if (!push_ucs2_talloc(talloc_tos(), &s, string, &converted_size)) {
TALLOC_FREE(p);
return -1;
}
if (translate_pattern) {
/*
for older negotiated protocols it is possible to
translate the pattern to produce a "new style"
pattern that exactly matches w2k behaviour
*/
for (i=0;p[i];i++) {
if (p[i] == UCS2_CHAR('?')) {
p[i] = UCS2_CHAR('>');
} else if (p[i] == UCS2_CHAR('.') &&
(p[i+1] == UCS2_CHAR('?') ||
p[i+1] == UCS2_CHAR('*') ||
p[i+1] == 0)) {
p[i] = UCS2_CHAR('"');
} else if (p[i] == UCS2_CHAR('*') && p[i+1] == UCS2_CHAR('.')) {
p[i] = UCS2_CHAR('<');
}
}
}
for (count=i=0;p[i];i++) {
if (p[i] == UCS2_CHAR('*') || p[i] == UCS2_CHAR('<')) count++;
}
if (count != 0) {
if (count == 1) {
/*
* We're doing this a LOT, so save the effort to allocate
*/
ZERO_STRUCT(one_max_n);
max_n = &one_max_n;
}
else {
max_n = SMB_CALLOC_ARRAY(struct max_n, count);
if (!max_n) {
TALLOC_FREE(p);
TALLOC_FREE(s);
return -1;
}
max_n_free = max_n;
}
}
ret = ms_fnmatch_core(p, s, max_n, strrchr_w(s, UCS2_CHAR('.')), is_case_sensitive);
SAFE_FREE(max_n_free);
TALLOC_FREE(p);
TALLOC_FREE(s);
return ret;
}
