shithub: mc

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Actually check the last error.

--- a/lib/std/syswrap+plan9.myr

+++ b/lib/std/syswrap+plan9.myr

@@ -4,6 +4,8 @@

 use "types.use"

 use "errno.use"

 use "result.use"

+use "cstrconv.use"

+use "strfind.use"

 pkg std =

 	type fd		= sys.fd

@@ -235,5 +237,25 @@

 }

 const lasterr = {

-	-> Emisc

+	var errbuf	: byte[sys.Maxerr]

+	var err

+

+	sys.errstr(errbuf[:])

+	err = cstrconv(errbuf[:])

+	if strhas(err, "no error")

+		-> Enone

+	elif strhas(err, "already exists")

+		-> Eexist

+	elif strhas(err, "read or write too large")

+		-> Erange

+	elif strhas(err, "read or write too small")

+		-> Erange

+	elif strhas(err, "i/o error")

+		-> Eio

+	elif strhas(err, "fd out of range or not open")

+		-> Ebadf

+	else

+		-> Emisc

+	;;

 }

+

--- a/lib/sys/sys+plan9-x64.myr

+++ b/lib/sys/sys+plan9-x64.myr

@@ -25,6 +25,7 @@

 		what	: uint32	/* plink */

 	;;

+	const Maxerr	: size = 128

 	const Ordonly	: fdopt = 0

 	const Owronly	: fdopt = 1