--- mstools/posix/h/sys/errno.h	2018/08/09 18:22:18	1.1.1.1
+++ mstools/posix/h/sys/errno.h	2018/08/09 18:24:37	1.1.1.2
@@ -12,20 +12,6 @@ Abstract:
    number as described in section 2.5 of IEEE P1003.1/Draft 13 as well as
    additional error codes for streams and sockets.
 
-Author:
-
-  Mark Lucovsky        21-Feb-1989         // errno.h
-  Sam Patton (sampa)   July 26, 1991       // sys\errno.h
-
-Revision History:
-
-  when        who     what
-  ----        ---     ----
-  7-26-91    sampa    initial version
-  8-01-91    mikemas  added inclusion of user-level errno.h
-  9-09-91    mikemas  merged with ..\errno.h
-  9-19-91    mikemas  removed STREAMS error codes to ..\..\sockets\sock_err.h
-
 --*/
 
 
@@ -36,48 +22,51 @@ Revision History:
  *  POSIX error codes
  */
 
-#define  EZERO		0
-#define  EPERM		1
-#define  ENOENT		2
-#define  ESRCH		3
-#define  EINTR		4
-#define  EIO		5
-#define  ENXIO		6
-#define  E2BIG		7
-#define  ENOEXEC	8
-#define  EBADF		9
-#define  ECHILD		10
-#define  EAGAIN		11
-#define  ENOMEM		12
-#define  EACCES		13
-#define  EFAULT		14
-#define  ENOTBLK	15		/* not a POSIX.1 error code */
-#define  EBUSY		16
-#define  EEXIST		17
-#define  EXDEV		18
-#define  ENODEV		19
-#define  ENOTDIR	20
-#define  EISDIR		21
-#define  EINVAL		22
-#define  ENFILE		23
-#define  EMFILE		24
-#define  ENOTTY		25
-#define  ETXTBUSY	26		/* not a POSIX.1 error code */
-#define  EFBIG		27
-#define  ENOSPC		28
-#define  ESPIPE		29
-#define  EROFS		30
-#define  EMLINK		31
-#define  EPIPE		32
-#define  EDOM		33
-#define  ERANGE		34
-#define  EUCLEAN	35		/* not a POSIX.1 error code */
-#define  EDEADLOCK	36
-#define  EDEADLK	36
-#define  UNKNOWN	37
-#define  ENAMETOOLONG   38		/* XXX.mjb: fix this. */
-#define  ENOLCK         39		/* XXX.mjb: fix this. */
-#define  ENOSYS         40		/* XXX.mjb: fix this. */
-#define  ENOTEMPTY      41		/* XXX.mjb: fix this. */
+#define  EZERO		0	/* No error				*/
+#define  EPERM		1	/* Operation no permitted		*/
+#define  ENOENT		2	/* No such file or directory		*/
+#define  ESRCH		3	/* No such process			*/
+#define  EINTR		4	/* Interrupted function call		*/
+#define  EIO		5	/* Input/output error			*/
+#define  ENXIO		6	/* No such device or address		*/
+#define  E2BIG		7	/* Arg list too long			*/
+#define  ENOEXEC	8	/* Exec format error			*/
+#define  EBADF		9	/* Bad file descriptor			*/
+#define  ECHILD		10	/* No child processes			*/
+#define  EAGAIN		11	/* Resource temporarily unavailable	*/
+#define  ENOMEM		12	/* Not enough space			*/
+#define  EACCES		13	/* Permission denied			*/
+#define  EFAULT		14	/* Bad address				*/
+#define  ENOTBLK	15	/* Unknown error			*/
+#define  EBUSY		16	/* Resource device			*/
+#define  EEXIST		17	/* File exists				*/
+#define  EXDEV		18	/* Improper link			*/
+#define  ENODEV		19	/* No such device			*/
+#define  ENOTDIR	20	/* Not a directory			*/
+#define  EISDIR		21	/* Is a directory			*/
+#define  EINVAL		22	/* Invalid argument			*/
+#define  ENFILE		23	/* Too many open files in system	*/
+#define  EMFILE		24	/* Too many open files			*/
+#define  ENOTTY		25	/* Inappropriate I/O control operation	*/
+#define  ETXTBUSY	26	/* Unknown error			*/
+#define  EFBIG		27	/* File too large			*/
+#define  ENOSPC		28	/* No space left on device		*/
+#define  ESPIPE		29	/* Invalid seek				*/
+#define  EROFS		30	/* Read-only file system		*/
+#define  EMLINK		31	/* Too many links			*/
+#define  EPIPE		32	/* Broken pipe				*/
+#define  EDOM		33	/* Domain error				*/
+#define  ERANGE		34	/* Result too large			*/
+#define  EUCLEAN	35	/* Unknown error			*/
+#define  EDEADLOCK	36	/* Resource deadlock avoided		*/
+#define  EDEADLK	36	/* Resource deadlock avoided		*/
+#ifndef	 _POSIX_SOURCE
+#define  UNKNOWN	37	/* Unknown error			*/
+#endif	 /* _POSIX_SOURCE */
+#define  ENAMETOOLONG   38	/* Filename too long			*/
+#define  ENOLCK         39	/* No locks available			*/
+#define  ENOSYS         40	/* Function not implemented		*/
+#define  ENOTEMPTY      41	/* Direcotory not empty			*/
+#define  EILSEQ         42      /* Invalid multi-byte character         */
 
 #endif  /* _SYS_ERRNO_ */