int charlen, outlen = 0;
int maxwords = maxbytes / 2;
char tmp[NLS_MAX_CHARSET_SIZE];
+ __u16 ftmp;
- for (i = 0; i < maxwords && from[i]; i++) {
- charlen = codepage->uni2char(le16_to_cpu(from[i]), tmp,
- NLS_MAX_CHARSET_SIZE);
+ for (i = 0; i < maxwords; i++) {
+ ftmp = get_unaligned_le16(&from[i]);
+ if (ftmp == 0)
+ break;
+
+ charlen = codepage->uni2char(ftmp, tmp, NLS_MAX_CHARSET_SIZE);
if (charlen > 0)
outlen += charlen;
else
}
/*
- * cifs_mapchar - convert a little-endian char to proper char in codepage
+ * cifs_mapchar - convert a host-endian char to proper char in codepage
* @target - where converted character should be copied
- * @src_char - 2 byte little-endian source character
+ * @src_char - 2 byte host-endian source character
* @cp - codepage to which character should be converted
* @mapchar - should character be mapped according to mapchars mount option?
*
* enough to hold the result of the conversion (at least NLS_MAX_CHARSET_SIZE).
*/
static int
-cifs_mapchar(char *target, const __le16 src_char, const struct nls_table *cp,
+cifs_mapchar(char *target, const __u16 src_char, const struct nls_table *cp,
bool mapchar)
{
int len = 1;
* build_path_from_dentry are modified, as they use slash as
* separator.
*/
- switch (le16_to_cpu(src_char)) {
+ switch (src_char) {
case UNI_COLON:
*target = ':';
break;
return len;
cp_convert:
- len = cp->uni2char(le16_to_cpu(src_char), target,
- NLS_MAX_CHARSET_SIZE);
+ len = cp->uni2char(src_char, target, NLS_MAX_CHARSET_SIZE);
if (len <= 0) {
*target = '?';
len = 1;
int nullsize = nls_nullsize(codepage);
int fromwords = fromlen / 2;
char tmp[NLS_MAX_CHARSET_SIZE];
+ __u16 ftmp;
/*
* because the chars can be of varying widths, we need to take care
*/
safelen = tolen - (NLS_MAX_CHARSET_SIZE + nullsize);
- for (i = 0; i < fromwords && from[i]; i++) {
+ for (i = 0; i < fromwords; i++) {
+ ftmp = get_unaligned_le16(&from[i]);
+ if (ftmp == 0)
+ break;
+
/*
* check to see if converting this character might make the
* conversion bleed into the null terminator
*/
if (outlen >= safelen) {
- charlen = cifs_mapchar(tmp, from[i], codepage, mapchar);
+ charlen = cifs_mapchar(tmp, ftmp, codepage, mapchar);
if ((outlen + charlen) > (tolen - nullsize))
break;
}
/* put converted char into 'to' buffer */
- charlen = cifs_mapchar(&to[outlen], from[i], codepage, mapchar);
+ charlen = cifs_mapchar(&to[outlen], ftmp, codepage, mapchar);
outlen += charlen;
}
{
int charlen;
int i;
- wchar_t *wchar_to = (wchar_t *)to; /* needed to quiet sparse */
+ wchar_t wchar_to; /* needed to quiet sparse */
for (i = 0; len && *from; i++, from += charlen, len -= charlen) {
-
- /* works for 2.4.0 kernel or later */
- charlen = codepage->char2uni(from, len, &wchar_to[i]);
+ charlen = codepage->char2uni(from, len, &wchar_to);
if (charlen < 1) {
- cERROR(1, "strtoUCS: char2uni of %d returned %d",
- (int)*from, charlen);
+ cERROR(1, "strtoUCS: char2uni of 0x%x returned %d",
+ *from, charlen);
/* A question mark */
- to[i] = cpu_to_le16(0x003f);
+ wchar_to = 0x003f;
charlen = 1;
- } else
- to[i] = cpu_to_le16(wchar_to[i]);
-
+ }
+ put_unaligned_le16(wchar_to, &to[i]);
}
- to[i] = 0;
+ put_unaligned_le16(0, &to[i]);
return i;
}
return dst;
}
+/*
+ * Convert 16 bit Unicode pathname to wire format from string in current code
+ * page. Conversion may involve remapping up the six characters that are
+ * only legal in POSIX-like OS (if they are present in the string). Path
+ * names are little endian 16 bit Unicode on the wire
+ */
+int
+cifsConvertToUCS(__le16 *target, const char *source, int maxlen,
+ const struct nls_table *cp, int mapChars)
+{
+ int i, j, charlen;
+ int len_remaining = maxlen;
+ char src_char;
+ __u16 temp;
+
+ if (!mapChars)
+ return cifs_strtoUCS(target, source, PATH_MAX, cp);
+
+ for (i = 0, j = 0; i < maxlen; j++) {
+ src_char = source[i];
+ switch (src_char) {
+ case 0:
+ put_unaligned_le16(0, &target[j]);
+ goto ctoUCS_out;
+ case ':':
+ temp = UNI_COLON;
+ break;
+ case '*':
+ temp = UNI_ASTERIK;
+ break;
+ case '?':
+ temp = UNI_QUESTION;
+ break;
+ case '<':
+ temp = UNI_LESSTHAN;
+ break;
+ case '>':
+ temp = UNI_GRTRTHAN;
+ break;
+ case '|':
+ temp = UNI_PIPE;
+ break;
+ /*
+ * FIXME: We can not handle remapping backslash (UNI_SLASH)
+ * until all the calls to build_path_from_dentry are modified,
+ * as they use backslash as separator.
+ */
+ default:
+ charlen = cp->char2uni(source+i, len_remaining,
+ &temp);
+ /*
+ * if no match, use question mark, which at least in
+ * some cases serves as wild card
+ */
+ if (charlen < 1) {
+ temp = 0x003f;
+ charlen = 1;
+ }
+ len_remaining -= charlen;
+ /*
+ * character may take more than one byte in the source
+ * string, but will take exactly two bytes in the
+ * target string
+ */
+ i += charlen;
+ continue;
+ }
+ put_unaligned_le16(temp, &target[j]);
+ i++; /* move to next char in source string */
+ len_remaining--;
+ }
+
+ctoUCS_out:
+ return i;
+}
+
projects / mv-sheeva.git / blobdiff