[CIFS] Fix final user of old string conversion code
authorSteve French <sfrench@us.ibm.com>
Sat, 2 May 2009 05:25:46 +0000 (05:25 +0000)
committerSteve French <sfrench@us.ibm.com>
Sat, 2 May 2009 05:25:46 +0000 (05:25 +0000)
Signed-off-by: Steve French <sfrench@us.ibm.com>
fs/cifs/cifssmb.c

index b968e5bd7df3fb00d77a133cb0dd1cba736c5632..0ac32bd336d7663aa6800f87882773d3579d802d 100644 (file)
@@ -2564,7 +2564,6 @@ validate_ntransact(char *buf, char **ppparm, char **ppdata,
        *pparmlen = parm_count;
        return 0;
 }
-#endif /* CIFS_EXPERIMENTAL */
 
 int
 CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
@@ -2611,59 +2610,55 @@ CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
        } else {                /* decode response */
                __u32 data_offset = le32_to_cpu(pSMBr->DataOffset);
                __u32 data_count = le32_to_cpu(pSMBr->DataCount);
-               if ((pSMBr->ByteCount < 2) || (data_offset > 512))
+               if ((pSMBr->ByteCount < 2) || (data_offset > 512)) {
                /* BB also check enough total bytes returned */
                        rc = -EIO;      /* bad smb */
-               else {
-                       if (data_count && (data_count < 2048)) {
-                               char *end_of_smb = 2 /* sizeof byte count */ +
-                                               pSMBr->ByteCount +
-                                               (char *)&pSMBr->ByteCount;
+                       goto qreparse_out;
+               }
+               if (data_count && (data_count < 2048)) {
+                       char *end_of_smb = 2 /* sizeof byte count */ +
+                               pSMBr->ByteCount + (char *)&pSMBr->ByteCount;
 
-                               struct reparse_data *reparse_buf =
+                       struct reparse_data *reparse_buf =
                                                (struct reparse_data *)
                                                ((char *)&pSMBr->hdr.Protocol
                                                                 + data_offset);
-                               if ((char *)reparse_buf >= end_of_smb) {
-                                       rc = -EIO;
-                                       goto qreparse_out;
-                               }
-                               if ((reparse_buf->LinkNamesBuf +
-                                       reparse_buf->TargetNameOffset +
-                                       reparse_buf->TargetNameLen) >
-                                               end_of_smb) {
-                                       cFYI(1, ("reparse buf beyond SMB"));
-                                       rc = -EIO;
-                                       goto qreparse_out;
-                               }
+                       if ((char *)reparse_buf >= end_of_smb) {
+                               rc = -EIO;
+                               goto qreparse_out;
+                       }
+                       if ((reparse_buf->LinkNamesBuf +
+                               reparse_buf->TargetNameOffset +
+                               reparse_buf->TargetNameLen) > end_of_smb) {
+                               cFYI(1, ("reparse buf beyond SMB"));
+                               rc = -EIO;
+                               goto qreparse_out;
+                       }
 
-                               if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
-                                       name_len = UniStrnlen((wchar_t *)
+                       if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
+                               cifs_from_ucs2(symlinkinfo, (__le16 *)
                                                (reparse_buf->LinkNamesBuf +
                                                reparse_buf->TargetNameOffset),
-                                               min(buflen/2,
-                                               reparse_buf->TargetNameLen / 2));
-                                       cifs_strfromUCS_le(symlinkinfo,
-                                               (__le16 *) (reparse_buf->LinkNamesBuf +
-                                               reparse_buf->TargetNameOffset),
-                                               name_len, nls_codepage);
-                               } else { /* ASCII names */
-                                       strncpy(symlinkinfo,
-                                               reparse_buf->LinkNamesBuf +
-                                               reparse_buf->TargetNameOffset,
-                                               min_t(const int, buflen,
-                                                  reparse_buf->TargetNameLen));
-                               }
-                       } else {
-                               rc = -EIO;
-                               cFYI(1, ("Invalid return data count on "
-                                        "get reparse info ioctl"));
+                                               buflen,
+                                               reparse_buf->TargetNameLen,
+                                               nls_codepage, 0);
+                       } else { /* ASCII names */
+                               strncpy(symlinkinfo,
+                                       reparse_buf->LinkNamesBuf +
+                                       reparse_buf->TargetNameOffset,
+                                       min_t(const int, buflen,
+                                          reparse_buf->TargetNameLen));
                        }
-                       symlinkinfo[buflen] = 0; /* just in case so the caller
-                                       does not go off the end of the buffer */
-                       cFYI(1, ("readlink result - %s", symlinkinfo));
+               } else {
+                       rc = -EIO;
+                       cFYI(1, ("Invalid return data count on "
+                                "get reparse info ioctl"));
                }
+               symlinkinfo[buflen] = 0; /* just in case so the caller
+                                       does not go off the end of the buffer */
+               cFYI(1, ("readlink result - %s", symlinkinfo));
        }
+       
 qreparse_out:
        cifs_buf_release(pSMB);
 
@@ -2672,6 +2667,7 @@ qreparse_out:
 
        return rc;
 }
+#endif /* CIFS_EXPERIMENTAL */
 
 #ifdef CONFIG_CIFS_POSIX