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- // 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.
- // +build !hurd
- // +build !linux
- package syscall
- //sysnb strerror_r(errnum int, buf []byte) (err Errno)
- //strerror_r(errnum _C_int, buf *byte, buflen Size_t) _C_int
- func Errstr(errnum int) string {
- for len := 128; ; len *= 2 {
- b := make([]byte, len)
- errno := strerror_r(errnum, b)
- if errno == 0 {
- i := 0
- for b[i] != 0 {
- i++
- }
- // Lowercase first letter: Bad -> bad, but
- // STREAM -> STREAM.
- if i > 1 && 'A' <= b[0] && b[0] <= 'Z' && 'a' <= b[1] && b[1] <= 'z' {
- b[0] += 'a' - 'A'
- }
- return string(b[:i])
- }
- if errno != ERANGE {
- return "errstr failure"
- }
- }
- }
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