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[PATCH] cifs: finish up of special character mapping capable unicode conversion routine part 2 of 3

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Signed-off-by: Steve French (sfrench@us.ibm.com)
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Steve French
2005-04-28 22:41:06 -07:00
committed by Linus Torvalds
parent d14537f103
commit 6c91d362f1
3 changed files with 83 additions and 11 deletions
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80
fs/cifs/misc.c
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@@ -28,6 +28,7 @@
#include "cifs_debug.h"
#include "smberr.h"
#include "nterr.h"
#include "cifs_unicode.h"
extern mempool_t *cifs_sm_req_poolp;
extern mempool_t *cifs_req_poolp;
@@ -515,7 +516,6 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length)
return;
}
#ifdef CONFIG_CIFS_EXPERIMENTAL
/* Windows maps these to the user defined 16 bit Unicode range since they are
reserved symbols (along with \ and /), otherwise illegal to store
in filenames in NTFS */
@@ -552,9 +552,12 @@ cifs_convertUCSpath(char *target, const __le16 * source, int maxlen,
case UNI_QUESTION:
target[j] = '?';
break;
case UNI_SLASH:
target[j] = '\\'; /* BB check this - is there risk here of converting path sep BB */
break;
/* BB We can not handle remapping slash until
all the calls to build_path_from_dentry
are modified, as they use slash as separator BB */
/* case UNI_SLASH:
target[j] = '\\';
break;*/
case UNI_PIPE:
target[j] = '|';
break;
@@ -582,4 +585,71 @@ cUCS_out:
target[j] = 0;
return j;
}
#endif /* CIFS_EXPERIMENTAL */
/* Convert 16 bit Unicode pathname to wire format from string in current code
page. Conversion may involve remapping up the seven 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;
if(!mapChars)
return cifs_strtoUCS((wchar_t *) target, source, PATH_MAX, cp);
for(i = 0, j = 0; i < maxlen; j++) {
src_char = source[i];
switch (src_char) {
case 0:
goto ctoUCS_out;
case ':':
target[j] = cpu_to_le16(UNI_COLON);
break;
case '*':
target[j] = cpu_to_le16(UNI_ASTERIK);
break;
case '?':
target[j] = cpu_to_le16(UNI_QUESTION);
break;
case '<':
target[j] = cpu_to_le16(UNI_LESSTHAN);
break;
case '>':
target[j] = cpu_to_le16(UNI_GRTRTHAN);
break;
case '|':
target[j] = cpu_to_le16(UNI_PIPE);
break;
/* BB We can not handle remapping slash until
all the calls to build_path_from_dentry
are modified, as they use slash as separator BB */
/* case '\\':
target[j] = cpu_to_le16(UNI_SLASH);
break;*/
default:
charlen = cp->char2uni(source+i,
len_remaining, target+j);
/* if no match, use question mark, which
at least in some cases servers as wild card */
if(charlen < 1) {
target[j] = cpu_to_le16(0x003f);
charlen = 1;
}
len_remaining -= charlen;
/* character may take more than one byte in the
the source string, but will take exactly two
bytes in the target string */
i+= charlen;
continue;
}
i++; /* move to next char in source string */
len_remaining--;
}
ctoUCS_out:
return i;
}