2007-12-13 Marek Habersack <mhabersack@novell.com>

[mono.git] / mcs / class / Mono.Posix / Mono.Unix / UnixStream.cs

diff --git a/mcs/class/Mono.Posix/Mono.Unix/UnixStream.cs b/mcs/class/Mono.Posix/Mono.Unix/UnixStream.cs
index 64795781531b8325ed254853ce3e1351b9599e31..d5d16676b8deb45fae11a1b79b8cbd899c91e446 100644 (file)
--- a/mcs/class/Mono.Posix/Mono.Unix/UnixStream.cs
+++ b/mcs/class/Mono.Posix/Mono.Unix/UnixStream.cs
@@ -5,6 +5,8 @@
 //   Jonathan Pryor (jonpryor@vt.edu)
 //
 // (C) 2004-2006 Jonathan Pryor
+// (C) 2007 Novell, Inc.
+//
 //
 // Permission is hereby granted, free of charge, to any person obtaining
 // a copy of this software and associated documentation files (the
@@ -202,6 +204,9 @@ namespace Mono.Unix {
                        if (!CanRead)
                                throw new NotSupportedException ("Stream does not support reading");
                                 
+                       if (buffer.Length == 0)
+                               return 0;
+
                        long r = 0;
                        fixed (byte* buf = &buffer[offset]) {
                                do {
@@ -235,6 +240,9 @@ namespace Mono.Unix {
                        if (!CanRead)
                                throw new NotSupportedException ("Stream does not support reading");
                                 
+                       if (buffer.Length == 0)
+                               return 0;
+
                        long r = 0;
                        fixed (byte* buf = &buffer[offset]) {
                                do {
@@ -289,6 +297,9 @@ namespace Mono.Unix {
                        if (!CanWrite)
                                throw new NotSupportedException ("File Descriptor does not support writing");
 
+                       if (buffer.Length == 0)
+                               return;
+
                        long r = 0;
                        fixed (byte* buf = &buffer[offset]) {
                                do {
@@ -307,6 +318,9 @@ namespace Mono.Unix {
                        if (!CanWrite)
                                throw new NotSupportedException ("File Descriptor does not support writing");
 
+                       if (buffer.Length == 0)
+                               return;
+
                        long r = 0;
                        fixed (byte* buf = &buffer[offset]) {
                                do {