--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cmd/fsexam/src/fsexam-error.h	Fri Apr 25 17:02:23 2008 +0800
@@ -0,0 +1,112 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+
+#ifndef _FSEXAM_ERROR_H
+#define _FSEXAM_ERROR_H
+
+/*
+ * If change any ERR_*, exec 'make clean' before 'make'
+ */
+typedef enum {
+    /* INFO */
+    ERR_OK =                    0,
+    ERR_NAME_UTF8_ALREADY, 
+    ERR_CONTENT_UTF8_ALREADY,
+    ERR_NAME_SAME,
+    /* ERROR */
+    ERR_ERROR,                  /* 1 */ 
+    ERR_FILE_NONEXIST, 
+    ERR_NO_MEMORY, 
+    ERR_ENCODING_INDEX_INVALID,
+    ERR_CANNOT_OPEN,    
+    ERR_CANNOT_RENAME, 
+    ERR_CANNOT_WRITE,
+    ERR_NO_PROPER_ENCODING,
+    ERR_NOT_REG_FILE,
+    ERR_SYMLINK_TARGET_NOEXIST,
+    ERR_CANNOT_CONVERT, 
+    ERR_CANNOT_READ, 
+    ERR_NO_RIGHTS, 
+    ERR_CANNOT_RM_SYMLINK,
+    ERR_LOST_SYMLINK_FILE,
+    ERR_DRYRUN_FILE_INVALID,
+    ERR_GET_CWD,
+    ERR_CHDIR,
+    /* WARNING */
+    ERR_WARNING, 
+    ERR_HIST_NO_ITEM,
+    ERR_TREE_IS_EMPTY, 
+    ERR_NAME_EXIST, 
+    ERR_IGNORE_HIDDEN_FILE,
+    ERR_IGNORE_REMOTE_FILE,
+    ERR_EMPTY_FILE, 
+    ERR_NO_PARAMS, 
+    ERR_FILTER, 
+    ERR_FILE_TYPE_NOT_SUPPORT, 
+    ERR_BUFFER_OVERFLOW,
+    ERR_CANCEL_CONVERSION,
+    /* Won't write log */
+    ERR_WONNOT_LOG, 
+    ERR_CANNOT_WRITE_DRYRUN,
+    ERR_CANNOT_OPEN_DRYRUN,
+    ERR_CANNOT_CONVERT_TO_URI,
+    /* Misc error */
+    ERR_MISC, 
+} ERROR_NO;
+
+extern ERROR_NO fsexam_errno;
+
+const char  *fsexam_error_get_msg (void);
+
+void        _fsexam_perror (char *errnofile, int line, char *filename);
+
+#define fsexam_perror(filename) \
+        do {        \
+            _fsexam_perror (__FILE__, __LINE__, filename);  \
+        }while (0) 
+
+/*
+ * How to make one elegant error handling machanism?
+ *
+ *      - system error: errno need remember
+ *      - custermized error: fsexam_errno
+ *      - error context: such as 
+ *          - filename, may be more than one file
+ *          - Sometime there is error occured, but we still have
+ *            get some result, such as get_abs_path, we have get
+ *            the abs path, but can't rechange to old_cwd
+ *
+ *      - buffer overflow: do we need check and report?
+ *          - strlcpy, strlcat
+ *          - fgets
+ *
+ *      - Who need to check the input is NULL or not?
+ *          - caller?
+ *          - callee?
+ */
+
+#endif //_FSEXAM_ERROR_H