+support GnomeVFSMethod->get_file_info_from_handle()

[captive.git] / src / libcaptive / client / file.c

diff --git a/src/libcaptive/client/file.c b/src/libcaptive/client/file.c
index 0f2bf55..3b87dd9 100644 (file)
--- a/src/libcaptive/client/file.c
+++ b/src/libcaptive/client/file.c
@@ -115,6 +115,7 @@ NTSTATUS err;
                        0
                                        |(!(mode&GNOME_VFS_OPEN_READ ) ? 0 : FILE_READ_DATA)
                                        |(!(mode&GNOME_VFS_OPEN_WRITE) ? 0 : FILE_WRITE_DATA | FILE_APPEND_DATA)
+                                       |(  mode!=0                    ? 0 : FILE_READ_ATTRIBUTES)
                                        ,       /* DesiredAccess */
                        &file_ObjectAttributes, /* ObjectAttributes */
                        &file_IoStatusBlock,    /* IoStatusBlock */
@@ -352,3 +353,127 @@ GnomeVFSResult errvfsresult;
 
        return GNOME_VFS_OK;
 }
+
+
+/* Use 'FileAllInformationStruct' identifier instead of the logical 'FileAllInformation'
+ * to prevent override of enum member 'FileAllInformation'
+ */
+static GnomeVFSResult FileAllInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
+               FILE_ALL_INFORMATION *FileAllInformationStruct,IO_STATUS_BLOCK *IoStatusBlock)
+{
+UNICODE_STRING FileName_UnicodeString;
+BOOLEAN errBOOLEAN;
+ULONG tmp_ULONG;
+
+       g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_GENERIC);
+       g_return_val_if_fail(FileAllInformationStruct!=NULL,GNOME_VFS_ERROR_GENERIC);
+
+       g_return_val_if_fail(NT_SUCCESS(IoStatusBlock->Status),GNOME_VFS_ERROR_GENERIC);
+
+       file_info->valid_fields=0;
+
+       FileName_UnicodeString.Length=FileAllInformationStruct->NameInformation.FileNameLength;
+       FileName_UnicodeString.MaximumLength=FileAllInformationStruct->NameInformation.FileNameLength
+                       +sizeof(*FileAllInformationStruct->NameInformation.FileName);   /* 0-terminator */
+       g_assert((gpointer)(((char *)FileAllInformationStruct->NameInformation.FileName)+FileName_UnicodeString.Length)
+                       <=(gpointer)(((char *)FileAllInformationStruct)+IoStatusBlock->Information));
+                                       /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
+       FileAllInformationStruct->NameInformation.FileName[FileAllInformationStruct->NameInformation.FileNameLength
+                       /sizeof(*FileAllInformationStruct->NameInformation.FileName)]=0;        /* 0-terminate it */
+       FileName_UnicodeString.Buffer=FileAllInformationStruct->NameInformation.FileName;
+       file_info->name=captive_UnicodeString_to_utf8_malloc(&FileName_UnicodeString);
+       /* '->name' assumed for 'file_info->valid_fields' */
+
+       /* FIXME: What is 'FILE_ATTRIBUTE_NORMAL'? */
+       switch (FileAllInformationStruct->BasicInformation.FileAttributes & (0
+                       | FILE_ATTRIBUTE_DIRECTORY
+                       | FILE_ATTRIBUTE_DEVICE)) {
+               case 0:                        file_info->type=GNOME_VFS_FILE_TYPE_REGULAR;   break;
+               case FILE_ATTRIBUTE_DIRECTORY: file_info->type=GNOME_VFS_FILE_TYPE_DIRECTORY; break;
+               case FILE_ATTRIBUTE_DEVICE:    file_info->type=GNOME_VFS_FILE_TYPE_SOCKET;
+                       /* or GNOME_VFS_FILE_TYPE_CHARACTER_DEVICE or GNOME_VFS_FILE_TYPE_BLOCK_DEVICE ? */
+                       break;
+               default:                       file_info->type=GNOME_VFS_FILE_TYPE_UNKNOWN;   break;
+               }
+       file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_TYPE;
+
+       /* we use 0600 for r/w files, 0400 for FILE_ATTRIBUTE_READONLY */
+       file_info->permissions=GNOME_VFS_PERM_USER_READ;
+       if (file_info->type==GNOME_VFS_FILE_TYPE_DIRECTORY)
+               file_info->permissions|=GNOME_VFS_PERM_USER_EXEC;
+       if (!(FileAllInformationStruct->BasicInformation.FileAttributes & FILE_ATTRIBUTE_READONLY))
+               file_info->permissions|=GNOME_VFS_PERM_USER_WRITE;
+       file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;
+
+       file_info->size=FileAllInformationStruct->StandardInformation.EndOfFile.QuadPart;
+       file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE;
+
+       file_info->block_count=FileAllInformationStruct->StandardInformation.AllocationSize.QuadPart/512;
+       file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT;
+
+       file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL;
+       file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS;
+
+       if (FileAllInformationStruct->BasicInformation.LastAccessTime.QuadPart) {       /* it may be 0 if not set */
+               errBOOLEAN=RtlTimeToSecondsSince1970(&FileAllInformationStruct->BasicInformation.LastAccessTime,&tmp_ULONG);
+               g_assert(errBOOLEAN==TRUE);
+               file_info->atime=tmp_ULONG;
+               file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_ATIME;
+               }
+
+       /* it may be 0 if not set */
+       if (FileAllInformationStruct->BasicInformation.LastWriteTime.QuadPart || FileAllInformationStruct->BasicInformation.ChangeTime.QuadPart) {
+               errBOOLEAN=RtlTimeToSecondsSince1970(
+                               /* take the more recent (==bigger) time: */
+                               (FileAllInformationStruct->BasicInformation.LastWriteTime.QuadPart > FileAllInformationStruct->BasicInformation.ChangeTime.QuadPart
+                                               ? &FileAllInformationStruct->BasicInformation.LastWriteTime : &FileAllInformationStruct->BasicInformation.ChangeTime),
+                               &tmp_ULONG);
+               g_assert(errBOOLEAN==TRUE);
+               file_info->mtime=tmp_ULONG;
+               file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_MTIME;
+               }
+
+       if (FileAllInformationStruct->BasicInformation.CreationTime.QuadPart) { /* it may be 0 if not set */
+               errBOOLEAN=RtlTimeToSecondsSince1970(&FileAllInformationStruct->BasicInformation.CreationTime,&tmp_ULONG);
+               g_assert(errBOOLEAN==TRUE);
+               file_info->ctime=tmp_ULONG;
+               file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_CTIME;
+               }
+
+       return GNOME_VFS_OK;
+}
+
+
+GnomeVFSResult captive_file_file_info_get(CaptiveFileObject *captive_file_object,GnomeVFSFileInfo *file_info)
+{
+NTSTATUS err;
+IO_STATUS_BLOCK file_IoStatusBlock;
+FILE_ALL_INFORMATION *FileAllInformationStruct;
+GnomeVFSResult errvfsresult;
+char QueryFile_buf[sizeof(FILE_ALL_INFORMATION)
+               +0x1000 /* max 'FileName' length, 255 should be enough */ * sizeof(WCHAR /* *FILE_ALL_INFORMATION.NameInformation.FileName */ )];
+
+       g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+       g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+       g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
+
+       /* query */
+       FileAllInformationStruct=(void *)QueryFile_buf;
+       err=NtQueryInformationFile(
+                       captive_file_object->file_Handle,       /* FileHandle */
+                       &file_IoStatusBlock,    /* IoStatusBlock */
+                       (gpointer)QueryFile_buf,        /* FileInformation */
+                       sizeof(QueryFile_buf)   /* Length */
+                                       -sizeof(*FileAllInformationStruct->NameInformation.FileName),   /* reserve space for 0-terminator */
+                       FileAllInformation);    /* FileInformationClass; =>FILE_ALL_INFORMATION */
+       if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
+               return errvfsresult;
+       g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
+
+       /* process gathered info */
+       errvfsresult=FileAllInformationStruct_to_GnomeVFSFileInfo(file_info,FileAllInformationStruct,
+                       &file_IoStatusBlock);
+       g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
+
+       return GNOME_VFS_OK;
+}