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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libgo/syscalls/errstr.go
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Diffstat (limited to 'libgo/syscalls/errstr.go')
-rw-r--r--libgo/syscalls/errstr.go24
1 files changed, 24 insertions, 0 deletions
diff --git a/libgo/syscalls/errstr.go b/libgo/syscalls/errstr.go
new file mode 100644
index 000000000..a95abc686
--- /dev/null
+++ b/libgo/syscalls/errstr.go
@@ -0,0 +1,24 @@
+// errstr.go -- Error strings.
+
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package syscall
+
+func Errstr(errno int) string {
+ for len := Size_t(128); ; len *= 2 {
+ b := make([]byte, len)
+ r := libc_strerror_r(errno, &b[0], len)
+ if r >= 0 {
+ i := 0
+ for b[i] != 0 {
+ i++
+ }
+ return string(b[:i])
+ }
+ if GetErrno() != ERANGE {
+ return "Errstr failure"
+ }
+ }
+}