diff --git a/include/stropts.h b/include/stropts.h
index 80776ba637d79896fe3884edf3e01c80140a1c94..36d84bbba2b6da0d673ce01e7044fd8c6933678c 100644
--- a/include/stropts.h
+++ b/include/stropts.h
@@ -5,7 +5,129 @@
 extern "C" {
 #endif
 
-// FIXME
+#define __SID		('S' << 8)
+
+#define I_NREAD		(__SID | 1)
+#define I_PUSH		(__SID | 2)
+#define I_POP		(__SID | 3)
+#define I_LOOK		(__SID | 4)
+#define I_FLUSH		(__SID | 5)
+#define I_SRDOPT	(__SID | 6)
+#define I_GRDOPT	(__SID | 7)
+#define I_STR		(__SID | 8)
+#define I_SETSIG	(__SID | 9)
+#define I_GETSIG	(__SID |10)
+#define I_FIND		(__SID |11)
+#define I_LINK		(__SID |12)
+#define I_UNLINK	(__SID |13)
+#define I_PEEK		(__SID |15)
+#define I_FDINSERT	(__SID |16)
+#define I_SENDFD	(__SID |17)
+#define I_RECVFD	(__SID |14)
+#define I_SWROPT	(__SID |19)
+#define I_GWROPT	(__SID |20)
+#define I_LIST		(__SID |21)
+#define I_PLINK		(__SID |22)
+#define I_PUNLINK	(__SID |23)
+#define I_FLUSHBAND	(__SID |28)
+#define I_CKBAND	(__SID |29)
+#define I_GETBAND	(__SID |30)
+#define I_ATMARK	(__SID |31)
+#define I_SETCLTIME	(__SID |32)
+#define I_GETCLTIME	(__SID |33)
+#define I_CANPUT	(__SID |34)
+
+#define FMNAMESZ	8
+
+#define FLUSHR		0x01
+#define FLUSHW		0x02
+#define FLUSHRW		0x03
+#define FLUSHBAND	0x04
+
+#define S_INPUT		0x0001
+#define S_HIPRI		0x0002
+#define S_OUTPUT	0x0004
+#define S_MSG		0x0008
+#define S_ERROR		0x0010
+#define S_HANGUP	0x0020
+#define S_RDNORM	0x0040
+#define S_WRNORM	S_OUTPUT
+#define S_RDBAND	0x0080
+#define S_WRBAND	0x0100
+#define S_BANDURG	0x0200
+
+#define RS_HIPRI	0x01
+
+#define RNORM		0x0000
+#define RMSGD		0x0001
+#define RMSGN		0x0002
+#define RPROTDAT	0x0004
+#define RPROTDIS	0x0008
+#define RPROTNORM	0x0010
+#define RPROTMASK	0x001C
+
+#define SNDZERO		0x001
+#define SNDPIPE		0x002
+
+#define ANYMARK		0x01
+#define LASTMARK	0x02
+
+#define MUXID_ALL	(-1)
+
+#define MSG_HIPRI	0x01
+#define MSG_ANY		0x02
+#define MSG_BAND	0x04
+
+#define MORECTL		1
+#define MOREDATA	2
+
+struct bandinfo {
+	unsigned char bi_pri;
+	int bi_flag;
+};
+
+struct strbuf {
+	int maxlen;
+	int len;
+	char *buf;
+};
+
+struct strpeek {
+	struct strbuf ctlbuf;
+	struct strbuf databuf;
+	unsigned flags;
+};
+
+struct strfdinsert {
+	struct strbuf ctlbuf;
+	struct strbuf databuf;
+	unsigned flags;
+	int fildes;
+	int offset;
+};
+
+struct strioctl {
+	int ic_cmd;
+	int ic_timout;
+	int ic_len;
+	char *ic_dp;
+};
+
+struct strrecvfd {
+	int fd;
+	int uid;
+	int gid;
+	char __fill[8];
+};
+
+struct str_mlist {
+	char l_name[FMNAMESZ + 1];
+};
+
+struct str_list {
+	int sl_nmods;
+	struct str_mlist *sl_modlist;
+};
 
 int ioctl (int, int, ...);