Initial commit based on v1.6.6

src/main/debug.c

@@ -0,0 +1,72 @@
+/*
+ * Output debugging information.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "pv.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+
+#ifdef ENABLE_DEBUGGING
+/*
+ * Output debugging information to the file given in the DEBUG environment
+ * variable, if it is defined.
+ */
+void debugging_output(const char *function, const char *file, int line,
+		      const char *format, ...)
+{
+	static int tried_open = 0;
+	static FILE *debugfptr = NULL;
+	char *debugfile;
+	va_list ap;
+	time_t t;
+	struct tm *tm;
+	char tbuf[128];
+
+	if (0 == tried_open) {
+		debugfile = getenv("DEBUG");
+		if (NULL != debugfile)
+			debugfptr = fopen(debugfile, "a");
+		tried_open = 1;
+	}
+
+	if (NULL == debugfptr)
+		return;
+
+	time(&t);
+	tm = localtime(&t);
+	tbuf[0] = 0;
+	strftime(tbuf, sizeof(tbuf), "%Y-%m-%d %H:%M:%S", tm);
+
+	fprintf(debugfptr, "[%s] (%d) %s (%s:%d): ", tbuf, getpid(),
+		function, file, line);
+
+	va_start(ap, format);
+	vfprintf(debugfptr, format, ap);
+	va_end(ap);
+
+	fprintf(debugfptr, "\n");
+	fflush(debugfptr);
+}
+
+#else				/* ! ENABLE_DEBUGGING */
+
+/*
+ * Stub debugging output function.
+ */
+void debugging_output(const char *function, const char *file, int line,
+		      const char *format, ...)
+{
+}
+
+#endif				/* ENABLE_DEBUGGING */
+
+/* EOF */