Imported Upstream version 1.1~hg20130304upstream/1.1_hg20130304

1 files changed, 33 insertions, 0 deletions

diff --git a/src/pkg/runtime/env_plan9.c b/src/pkg/runtime/env_plan9.c
new file mode 100644
index 000000000..848d73303
--- /dev/null
+++ b/src/pkg/runtime/env_plan9.c
@@ -0,0 +1,33 @@
+// Copyright 2012 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.
+
+#include "runtime.h"
+#include "os_GOOS.h"
+
+byte*
+runtime·getenv(int8 *s)
+{
+	int32 fd, len, n, r;
+	byte file[128];
+	byte *p;
+
+	len = runtime·findnull((byte*)s);
+	if(len > sizeof file-6)
+		return nil;
+
+	runtime·memclr(file, sizeof file);
+	runtime·memmove((void*)file, (void*)"/env/", 5);
+	runtime·memmove((void*)(file+5), (void*)s, len);
+
+	fd = runtime·open(file, OREAD);
+	if(fd < 0)
+		return nil;
+	n = runtime·seek(fd, 0, 2);
+	p = runtime·malloc(n+1);
+	r = runtime·pread(fd, p, n, 0);
+	runtime·close(fd);
+	if(r < 0)
+		return nil;
+	return p;
+}