/*
* Version $Id$
+ *
+ * Kern Sibbald, July MMIV
+ *
*/
-
/*
- Copyright (C) 2004 Kern Sibbald and John Walker
+ Copyright (C) 2004-2006 Kern Sibbald
This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
+ modify it under the terms of the GNU General Public License
+ version 2 as amended with additional clauses defined in the
+ file LICENSE in the main source directory.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
-
- Kern Sibbald, July MMIV
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ the file LICENSE for additional details.
*/
+/*
+ * Extra bits set to interpret errno value differently from errno
+ */
#ifdef HAVE_WIN32
-#define b_errno_win32 (1<<29) /* user reserved bit */
+#define b_errno_win32 (1<<29) /* user reserved bit */
#endif
+#define b_errno_exit (1<<28) /* child exited, exit code returned */
+#define b_errno_signal (1<<27) /* child died, signal code returned */
/*
* A more generalized way of handling errno that works with Unix, Windows,
* and with Bacula bpipes.
*
- * It works by picking up errno and creating a memory pool buffer
+ * It works by picking up errno and creating a memory pool buffer
* for editing the message. strerror() does the actual editing, and
* it is thread safe.
*
* If bit 29 in berrno_ is set then it is a Win32 error, and we
* must to a GetLastError() to get the error code for formatting.
* If bit 29 in berrno_ is not set, then it is a Unix errno.
+ *
*/
-class berrno {
+class berrno : public SMARTALLOC {
POOLMEM *buf_;
int berrno_;
+ void format_win32_message();
public:
berrno(int pool=PM_EMSG);
~berrno();
const char *strerror();
+ const char *strerror(int errnum);
void set_errno(int errnum);
+ int code() { return berrno_ & ~(b_errno_exit|b_errno_signal); }
+ int code(int stat) { return stat & ~(b_errno_exit|b_errno_signal); }
};
/* Constructor */
-inline berrno::berrno(int pool)
+inline berrno::berrno(int pool)
{
berrno_ = errno;
buf_ = get_pool_memory(pool);
+#ifdef HAVE_WIN32
+ format_win32_message();
+#endif
}
-
+
inline berrno::~berrno()
-{
+{
free_pool_memory(buf_);
}
+inline const char *berrno::strerror(int errnum)
+{
+ berrno_ = errnum;
+ return berrno::strerror();
+}
+
+
inline void berrno::set_errno(int errnum)
{
berrno_ = errnum;