syscall: Force first letter of error message to lower case.

From-SVN: r193449

diff --git a/libgo/go/syscall/errstr.go b/libgo/go/syscall/errstr.go
index d003441..aa656ca 100644 (file)
--- a/libgo/go/syscall/errstr.go
+++ b/libgo/go/syscall/errstr.go
@@ -6,22 +6,27 @@
 
 package syscall
 
-//sysnb        strerror_r(errnum int, buf []byte) (err error)
+//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)
-               err := strerror_r(errnum, b)
-               if err == nil {
+               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 err != ERANGE {
-                       return "Errstr failure"
+               if errno != ERANGE {
+                       return "errstr failure"
                }
        }
 }

diff --git a/libgo/go/syscall/errstr_linux.go b/libgo/go/syscall/errstr_linux.go
index 3dbd20b..d10476d 100644 (file)
--- a/libgo/go/syscall/errstr_linux.go
+++ b/libgo/go/syscall/errstr_linux.go
@@ -19,5 +19,10 @@ func Errstr(errnum int) string {
        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' {
+               c := b[0] + 'a' - 'A'
+               return string(c) + string(b[1:i])
+       }
        return string(b[:i])
 }

diff --git a/libgo/go/syscall/errstr_nor.go b/libgo/go/syscall/errstr_nor.go
index 963c784..796561a 100644 (file)
--- a/libgo/go/syscall/errstr_nor.go
+++ b/libgo/go/syscall/errstr_nor.go
@@ -25,7 +25,15 @@ func Errstr(errno int) string {
        for b[i] != 0 {
                i++
        }
-       s := string(b[:i])
+
+       // Lowercase first letter: Bad -> bad, but STREAM -> STREAM.
+       var s string
+       if i > 1 && 'A' <= b[0] && b[0] <= 'Z' && 'a' <= b[1] && b[1] <= 'z' {
+               c := b[0] + 'a' - 'A'
+               s = string(c) + string(b[1:i])
+       } else {
+               s = string(b[:i])
+       }
 
        errstr_lock.Unlock()