/* return the methods for this mangling implementation */
const struct mangle_fns *mangle_hash_init(void)
{
mangle_reset();
if (chartest == NULL) {
init_chartest();
}
/* Create the in-memory tdb using our custom hash function. */
tdb_mangled_cache = tdb_open_ex("mangled_cache", 1031, TDB_INTERNAL,
(O_RDWR|O_CREAT), 0644, NULL, fast_string_hash);
return &mangle_hash_fns;
}
/* ************************************************************************** **
* Return True if the name *could be* a mangled name.
*
* Input: s - A path name - in UNIX pathname format.
*
* Output: True if the name matches the pattern described below in the
* notes, else False.
*
* Notes: The input name is *not* tested for 8.3 compliance. This must be
* done separately. This function returns true if the name contains
* a magic character followed by excactly two characters from the
* basechars list (above), which in turn are followed either by the
* nul (end of string) byte or a dot (extension) or by a '/' (end of
* a directory name).
*
* ************************************************************************** **
*/
static BOOL is_mangled(const char *s, int snum)
{
char *magic;
magic_char = lp_magicchar(snum);
if( !ct_initialized )
init_chartest();
magic = strchr_m( s, magic_char );
while( magic && magic[1] && magic[2] ) { /* 3 chars, 1st is magic. */
if( ('.' == magic[3] || '/' == magic[3] || !(magic[3])) /* Ends with '.' or nul or '/' ? */
&& isbasechar( toupper_ascii(magic[1]) ) /* is 2nd char basechar? */
&& isbasechar( toupper_ascii(magic[2]) ) ) /* is 3rd char basechar? */
return( True ); /* If all above, then true, */
magic = strchr_m( magic+1, magic_char ); /* else seek next magic. */
}
return( False );
}
static bool is_mangled(const char *s, const struct share_params *p)
{
char *magic;
char magic_char;
magic_char = lp_magicchar(p);
if (chartest == NULL) {
init_chartest();
}
magic = strchr_m( s, magic_char );
while( magic && magic[1] && magic[2] ) { /* 3 chars, 1st is magic. */
if( ('.' == magic[3] || '/' == magic[3] || !(magic[3])) /* Ends with '.' or nul or '/' ? */
&& isbasechar( toupper_m(magic[1]) ) /* is 2nd char basechar? */
&& isbasechar( toupper_m(magic[2]) ) ) /* is 3rd char basechar? */
return( True ); /* If all above, then true, */
magic = strchr_m( magic+1, magic_char ); /* else seek next magic. */
}
return( False );
}
/* ************************************************************************** **
* Return True if the name is a valid DOS name in 8.3 DOS format.
*
* Input: fname - File name to be checked.
* check_case - If True, then the
* name will be checked to see if all characters
* are the correct case.
*
* Output: True if the name is a valid DOS name, else FALSE.
*
* ************************************************************************** **
*/
int is_8_3( char *fname)
{
int len;
int l, i;
char *p;
char *dot_pos;
char *slash_pos = strrchr( fname, '/' );
/* If there is a directory path, skip it. */
if (slash_pos)
fname = slash_pos + 1;
len = strlen(fname);
/* Can't be 0 chars or longer than 12 chars */
if ((len == 0) || (len > 12))
return FALSE;
/* Mustn't be an MS-DOS Special file such as lpt1 or even lpt1.txt */
if (is_reserved_msdos(fname))
return FALSE;
init_chartest();
for (i = 0; i < strlen(fname); i++) {
if (isillegal(fname[i])) {
Syslog('+', "Illegal character in filename");
return FALSE;
}
}
/* Can't contain invalid dos chars */
p = fname;
dot_pos = NULL;
while (*p) {
if (*p == '.' && !dot_pos)
dot_pos = (char *)p;
p++;
}
/* no dot and less than 9 means OK */
if (!dot_pos)
return (len <= 8);
l = PTR_DIFF(dot_pos, fname);
/* base must be at least 1 char except special cases . and .. */
if (l == 0)
return(0 == strcmp( fname, "." ) || 0 == strcmp( fname, ".." ));
/* base can't be greater than 8 */
if (l > 8)
return FALSE;
if (len - l == 1 && !strchr( dot_pos + 1, '.' )) {
*dot_pos = 0;
return TRUE;
}
/* extension must be between 1 and 3 */
if ((len - l < 2 ) || (len - l > 4))
return FALSE;
/* extensions may not have a dot */
if (strchr( dot_pos+1, '.' ))
return FALSE;
/* must be in 8.3 format */
return TRUE;
}
