1 files changed, 83 insertions, 0 deletions
diff --git a/src/debug.c b/src/debug.c
new file mode 100644
index 0000000..e7d8c09
--- /dev/null
+++ b/src/debug.c
@@ -0,0 +1,83 @@
+/*
+ * Epson Inkjet Printer Driver (ESC/P-R) for Linux
+ * Copyright (C) 2002-2005 AVASYS CORPORATION.
+ * Copyright (C) Seiko Epson Corporation 2002-2012.
+ *
+ *  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., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#if DEBUG
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include "err.h"
+#include "debug.h"
+
+static char *debug_path = "/tmp/epson-escpr-wrapper-dump";
+static FILE *debug_fp = NULL;
+
+void
+debug_init (void)
+{
+	char path[255];
+	pid_t pid;
+	
+	pid = getpid ();
+	sprintf (path, "%s.%d", debug_path, pid);
+	
+	if (!debug_fp)
+	{
+		debug_fp = fopen (path, "w");
+		if (!debug_fp)
+			err_msg (MSGTYPE_WARNING, "Can't open the dump file \"%s\".", path);
+	}
+
+	fchmod (fileno (debug_fp), 0644);
+	return;
+}
+
+
+void
+debug_dump (const char *fmt, ...)
+{
+	va_list ap;
+
+	if (!debug_fp)
+		debug_init ();
+
+	va_start (ap, fmt);
+	vfprintf (debug_fp, fmt, ap);
+
+	va_end (ap);
+	return;
+}
+
+
+void
+debug_end (void)
+{
+	if (!debug_fp)
+		fclose (debug_fp);
+
+	return;
+}
+
+#endif /* DEBUG */