mirror of
https://github.com/containers/podman.git
synced 2025-09-18 15:54:49 +08:00
4e96686e9d
* Use vfkit command line assembly * Inject ignition file into guest using http over vsock * Ready notification through use of vsock [NO NEW TESTS NEEDED] Signed-off-by: Brent Baude <bbaude@redhat.com>
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
// Copyright 2017 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.
|
|
|
|
package objabi
|
|
|
|
import "strings"
|
|
|
|
// PathToPrefix converts raw string to the prefix that will be used in the
|
|
// symbol table. All control characters, space, '%' and '"', as well as
|
|
// non-7-bit clean bytes turn into %xx. The period needs escaping only in the
|
|
// last segment of the path, and it makes for happier users if we escape that as
|
|
// little as possible.
|
|
func PathToPrefix(s string) string {
|
|
slash := strings.LastIndex(s, "/")
|
|
// check for chars that need escaping
|
|
n := 0
|
|
for r := 0; r < len(s); r++ {
|
|
if c := s[r]; c <= ' ' || (c == '.' && r > slash) || c == '%' || c == '"' || c >= 0x7F {
|
|
n++
|
|
}
|
|
}
|
|
|
|
// quick exit
|
|
if n == 0 {
|
|
return s
|
|
}
|
|
|
|
// escape
|
|
const hex = "0123456789abcdef"
|
|
p := make([]byte, 0, len(s)+2*n)
|
|
for r := 0; r < len(s); r++ {
|
|
if c := s[r]; c <= ' ' || (c == '.' && r > slash) || c == '%' || c == '"' || c >= 0x7F {
|
|
p = append(p, '%', hex[c>>4], hex[c&0xF])
|
|
} else {
|
|
p = append(p, c)
|
|
}
|
|
}
|
|
|
|
return string(p)
|
|
}
|