Add new berrno files

git-svn-id: https://bacula.svn.sourceforge.net/svnroot/bacula/trunk@1494 91ce42f0-d328-0410-95d8-f526ca767f89

diff --git a/bacula/src/lib/berrno.c b/bacula/src/lib/berrno.c
new file mode 100644 (file)
index 0000000..9ec5fbd
--- /dev/null
+++ b/bacula/src/lib/berrno.c
@@ -0,0 +1,109 @@
+/*
+ *  Bacula errno handler
+ *
+ *    berrno is a simplistic errno handler that works for
+ *     Unix, Win32, and Bacula bpipes.
+ *
+ *    See berrno.h for how to use berrno.
+ *
+ *   Kern Sibbald, July MMIV
+ *
+ *   Version $Id$
+ *
+ */
+/*
+   Copyright (C) 2004 Kern Sibbald and John Walker
+
+   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.
+
+   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.
+
+ */
+
+#include "bacula.h"
+
+const char *berrno::strerror()
+{
+#ifdef HAVE_WIN32
+   LPVOID msg;
+
+   if (errnum && b_errno_win32) {
+      FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+         FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+         NULL,
+         GetLastError(),
+         MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+         (LPTSTR)&msg;
+         0,
+         NULL);
+
+      pm_strcpy(&buf_, msg);
+      LocalFree(msg);
+      return (const char *)buf_;
+   }
+#endif
+   if (bstrerror(berrno_, buf_, 1024) < 0) {
+      return "Invalid errno. No error message possible."; 
+   }
+   return (const char *)buf_;
+}
+
+
+#ifdef TEST_PROGRAM
+
+
+struct FILESET {
+   alist mylist;
+};
+
+int main()
+{
+   FILESET *fileset;
+   char buf[30];
+   alist *mlist;
+
+   fileset = (FILESET *)malloc(sizeof(FILESET));
+   memset(fileset, 0, sizeof(FILESET));
+   fileset->mylist.init();
+
+   printf("Manual allocation/destruction of list:\n");
+   
+   for (int i=0; i<20; i++) {
+      sprintf(buf, "This is item %d", i);
+      fileset->mylist.append(bstrdup(buf));
+   } 
+   for (int i=0; i< fileset->mylist.size(); i++) {
+      printf("Item %d = %s\n", i, (char *)fileset->mylist[i]);  
+   }
+   fileset->mylist.destroy();
+   free(fileset);
+
+   printf("Allocation/destruction using new delete\n");
+   mlist = new alist(10);
+
+   for (int i=0; i<20; i++) {
+      sprintf(buf, "This is item %d", i);
+      mlist->append(bstrdup(buf));
+   } 
+   for (int i=0; i< mlist->size(); i++) {
+      printf("Item %d = %s\n", i, (char *)mlist->get(i));  
+   }
+
+   delete mlist;
+
+
+   sm_dump(false);
+
+}
+#endif

diff --git a/bacula/src/lib/berrno.h b/bacula/src/lib/berrno.h
new file mode 100644 (file)
index 0000000..88492e1
--- /dev/null
+++ b/bacula/src/lib/berrno.h
@@ -0,0 +1,68 @@
+/*
+ *   Version $Id$
+ */
+
+/*
+   Copyright (C) 2004 Kern Sibbald and John Walker
+
+   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.
+
+   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
+
+ */
+
+#ifdef HAVE_WIN32
+#define b_errno_win32 (1<<29)         /* user reserved bit */
+#endif
+
+/*
+ * 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 
+ *  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 {
+   POOLMEM *buf_;
+   int berrno_;
+public:
+   berrno(int pool=PM_EMSG);
+   ~berrno();
+   const char *strerror();
+   void set_errno(int errnum);
+};
+
+/* Constructor */
+inline berrno::berrno(int pool) 
+{
+   berrno_ = errno;
+   buf_ = get_pool_memory(pool);
+}
+   
+inline berrno::~berrno()
+{   
+   free_pool_memory(buf_);
+}
+
+inline void berrno::set_errno(int errnum)
+{
+   berrno_ = errnum;
+}