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authorDimitri Sokolyuk <demon@dim13.org>2017-08-04 18:10:55 +0200
committerDimitri Sokolyuk <demon@dim13.org>2017-08-04 18:14:10 +0200
commitb1d650c6542a8573ecfb204a037df12731272822 (patch)
tree179c995ab096c96093c00dfe75de284f60241b0c /vendor/golang.org/x/sys/windows/exec_windows.go
parent603149f89679abf76b65ce1d5758c55e239cc104 (diff)
Update vendor
Diffstat (limited to 'vendor/golang.org/x/sys/windows/exec_windows.go')
-rw-r--r--vendor/golang.org/x/sys/windows/exec_windows.go97
1 files changed, 97 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/windows/exec_windows.go b/vendor/golang.org/x/sys/windows/exec_windows.go
new file mode 100644
index 0000000..3606c3a
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/exec_windows.go
@@ -0,0 +1,97 @@
+// 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.
+
+// Fork, exec, wait, etc.
+
+package windows
+
+// EscapeArg rewrites command line argument s as prescribed
+// in http://msdn.microsoft.com/en-us/library/ms880421.
+// This function returns "" (2 double quotes) if s is empty.
+// Alternatively, these transformations are done:
+// - every back slash (\) is doubled, but only if immediately
+// followed by double quote (");
+// - every double quote (") is escaped by back slash (\);
+// - finally, s is wrapped with double quotes (arg -> "arg"),
+// but only if there is space or tab inside s.
+func EscapeArg(s string) string {
+ if len(s) == 0 {
+ return "\"\""
+ }
+ n := len(s)
+ hasSpace := false
+ for i := 0; i < len(s); i++ {
+ switch s[i] {
+ case '"', '\\':
+ n++
+ case ' ', '\t':
+ hasSpace = true
+ }
+ }
+ if hasSpace {
+ n += 2
+ }
+ if n == len(s) {
+ return s
+ }
+
+ qs := make([]byte, n)
+ j := 0
+ if hasSpace {
+ qs[j] = '"'
+ j++
+ }
+ slashes := 0
+ for i := 0; i < len(s); i++ {
+ switch s[i] {
+ default:
+ slashes = 0
+ qs[j] = s[i]
+ case '\\':
+ slashes++
+ qs[j] = s[i]
+ case '"':
+ for ; slashes > 0; slashes-- {
+ qs[j] = '\\'
+ j++
+ }
+ qs[j] = '\\'
+ j++
+ qs[j] = s[i]
+ }
+ j++
+ }
+ if hasSpace {
+ for ; slashes > 0; slashes-- {
+ qs[j] = '\\'
+ j++
+ }
+ qs[j] = '"'
+ j++
+ }
+ return string(qs[:j])
+}
+
+func CloseOnExec(fd Handle) {
+ SetHandleInformation(Handle(fd), HANDLE_FLAG_INHERIT, 0)
+}
+
+// FullPath retrieves the full path of the specified file.
+func FullPath(name string) (path string, err error) {
+ p, err := UTF16PtrFromString(name)
+ if err != nil {
+ return "", err
+ }
+ n := uint32(100)
+ for {
+ buf := make([]uint16, n)
+ n, err = GetFullPathName(p, uint32(len(buf)), &buf[0], nil)
+ if err != nil {
+ return "", err
+ }
+ if n <= uint32(len(buf)) {
+ return UTF16ToString(buf[:n]), nil
+ }
+ }
+}