@@ -31,6 +31,7 @@

 #include <stdlib.h>

 #include <ctype.h>

 #include <unistd.h>

+#include <errno.h>

 #include <sys/types.h>

 #include <sys/stat.h>

 #include <sys/wait.h>

@@ -129,12 +130,20 @@ int logg(const char *str, ...)

     if(logfile) {

+	if (str == NULL && fd != NULL) {

+	    /* re-open logfile */

+	    fclose(fd);

+	    fd = NULL;

+	}

 	if(!fd) {

 	    if((fd = fopen(logfile, "a")) == NULL) {

-		mprintf("!LOGGER: Can't open file %s to write.\n", logfile);

+		mprintf("!LOGGER: Can't open %s for writing: %s.\n", logfile, strerror(errno));

 		return 1;

 	    }

 	}

+	if (str == NULL) {

+	    return 0;

+	}

 	va_start(args, str);