mirror of
https://github.com/opencontainers/runc.git
synced 2025-10-05 07:27:03 +08:00
9ba16b6d5a
This bumps the console and golang/sys deps for runc. The major change is that the console package does not clear ONLCR within the package and leaves it up to the client to handle this if they please. Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
98 lines
1.9 KiB
Go
98 lines
1.9 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Fork, exec, wait, etc.
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package windows
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// EscapeArg rewrites command line argument s as prescribed
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// in http://msdn.microsoft.com/en-us/library/ms880421.
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// This function returns "" (2 double quotes) if s is empty.
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// Alternatively, these transformations are done:
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// - every back slash (\) is doubled, but only if immediately
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// followed by double quote (");
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// - every double quote (") is escaped by back slash (\);
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// - finally, s is wrapped with double quotes (arg -> "arg"),
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// but only if there is space or tab inside s.
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func EscapeArg(s string) string {
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if len(s) == 0 {
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return "\"\""
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}
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n := len(s)
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hasSpace := false
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for i := 0; i < len(s); i++ {
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switch s[i] {
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case '"', '\\':
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n++
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case ' ', '\t':
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hasSpace = true
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}
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}
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if hasSpace {
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n += 2
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}
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if n == len(s) {
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return s
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}
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qs := make([]byte, n)
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j := 0
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if hasSpace {
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qs[j] = '"'
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j++
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}
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slashes := 0
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for i := 0; i < len(s); i++ {
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switch s[i] {
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default:
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slashes = 0
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qs[j] = s[i]
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case '\\':
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slashes++
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qs[j] = s[i]
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case '"':
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for ; slashes > 0; slashes-- {
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qs[j] = '\\'
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j++
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}
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qs[j] = '\\'
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j++
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qs[j] = s[i]
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}
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j++
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}
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if hasSpace {
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for ; slashes > 0; slashes-- {
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qs[j] = '\\'
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j++
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}
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qs[j] = '"'
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j++
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}
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return string(qs[:j])
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}
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func CloseOnExec(fd Handle) {
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SetHandleInformation(Handle(fd), HANDLE_FLAG_INHERIT, 0)
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}
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// FullPath retrieves the full path of the specified file.
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func FullPath(name string) (path string, err error) {
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p, err := UTF16PtrFromString(name)
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if err != nil {
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return "", err
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}
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n := uint32(100)
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for {
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buf := make([]uint16, n)
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n, err = GetFullPathName(p, uint32(len(buf)), &buf[0], nil)
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if err != nil {
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return "", err
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}
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if n <= uint32(len(buf)) {
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return UTF16ToString(buf[:n]), nil
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}
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}
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}
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