1 files changed, 24 insertions, 0 deletions
diff --git a/unix/utils/dputs.c b/unix/utils/dputs.c
new file mode 100644
index 00000000..97a275e0
--- /dev/null
+++ b/unix/utils/dputs.c
@@ -0,0 +1,24 @@
+/*
+ * Implementation of dputs() for Unix.
+ *
+ * The debug messages are written to standard output, and also into a
+ * file called debug.log.
+ */
+
+#include <unistd.h>
+
+#include "putty.h"
+
+static FILE *debug_fp = NULL;
+
+void dputs(const char *buf)
+{
+    if (!debug_fp) {
+        debug_fp = fopen("debug.log", "w");
+    }
+
+    if (write(1, buf, strlen(buf)) < 0) {} /* 'error check' to placate gcc */
+
+    fputs(buf, debug_fp);
+    fflush(debug_fp);
+}