1 files changed, 40 insertions, 0 deletions
diff --git a/sbin/ipf/libipf/ipf_perror.c b/sbin/ipf/libipf/ipf_perror.c
new file mode 100644
index 000000000000..2c612afe2be3
--- /dev/null
+++ b/sbin/ipf/libipf/ipf_perror.c
@@ -0,0 +1,40 @@
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include "ipf.h"
+
+void
+ipf_perror(int err, char *string)
+{
+	if (err == 0)
+		fprintf(stderr, "%s\n", string);
+	else
+		fprintf(stderr, "%s: %s\n", string, ipf_strerror(err));
+}
+
+int
+ipf_perror_fd( int fd, ioctlfunc_t iocfunc, char *string)
+{
+	int save;
+	int realerr;
+
+	save = errno;
+	if ((*iocfunc)(fd, SIOCIPFINTERROR, &realerr) == -1)
+		realerr = 0;
+
+	errno = save;
+	fprintf(stderr, "%d:", realerr);
+	ipf_perror(realerr, string);
+	return (realerr ? realerr : save);
+
+}
+
+void
+ipferror(int fd, char *msg)
+{
+	if (fd >= 0) {
+		ipf_perror_fd(fd, ioctl, msg);
+	} else {
+		fprintf(stderr, "0:");
+		perror(msg);
+	}
+}