Discovery with wait an select ist ready...

FossilOrigin-Name: 115fa489fbb4aa197e8390d40abcea80a8d4f954fecab348ce2862d2a20523c2

src/cw/log_errno.c

@@ -0,0 +1,20 @@
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "log.h"
+
+void cw_log_errno(char * format, ...)
+{
+	char str[2048];
+	int err=errno;
+
+	va_list args;
+	va_start(args,format);
+	vsprintf(str,format,args);
+	va_end(args);
+	
+	cw_log(LOG_ERR,"%s: %s",str,strerror(err));
+	
+}