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authorMichael Stapelberg <stapelberg@debian.org>2013-03-04 21:27:36 +0100
committerMichael Stapelberg <michael@stapelberg.de>2013-03-04 21:27:36 +0100
commit04b08da9af0c450d645ab7389d1467308cfc2db8 (patch)
treedb247935fa4f2f94408edc3acd5d0d4f997aa0d8 /src/pkg/runtime/env_plan9.c
parent917c5fb8ec48e22459d77e3849e6d388f93d3260 (diff)
downloadgolang-upstream/1.1_hg20130304.tar.gz
Imported Upstream version 1.1~hg20130304upstream/1.1_hg20130304
Diffstat (limited to 'src/pkg/runtime/env_plan9.c')
-rw-r--r--src/pkg/runtime/env_plan9.c33
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;
+}