Initial revision

kern/err.c

@@ -0,0 +1,61 @@
+/* err.c - error handling routines */
+/*
+ *  PUPA  --  Preliminary Universal Programming Architecture for GRUB
+ *  Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
+ *
+ *  PUPA 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 PUPA; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <pupa/err.h>
+#include <pupa/misc.h>
+#include <stdarg.h>
+
+#define PUPA_MAX_ERRMSG	256
+
+pupa_err_t pupa_errno;
+char pupa_errmsg[PUPA_MAX_ERRMSG];
+
+pupa_err_t
+pupa_error (pupa_err_t n, const char *fmt, ...)
+{
+  va_list ap;
+  
+  pupa_errno = n;
+
+  va_start (ap, fmt);
+  pupa_vsprintf (pupa_errmsg, fmt, ap);
+  va_end (ap);
+
+  return n;
+}
+
+void
+pupa_fatal (const char *fmt, ...)
+{
+  va_list ap;
+
+  va_start (ap, fmt);
+  pupa_vprintf (fmt, ap);
+  va_end (ap);
+
+  pupa_stop ();
+}
+
+void
+pupa_print_error (void)
+{
+  if (pupa_errno != PUPA_ERR_NONE)
+    pupa_printf ("error: %s\n", pupa_errmsg);
+}