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// Testable examples.
package cap_test
import (
"fmt"
"log"
cap_ "kernel.org/pub/linux/libs/security/libcap/cap"
)
func ExampleSet_Fill() {
// This example does not need to use a package alias `cap_`.
// It is declared this way to make examples on the go.dev doc
// site render and run. This workaround is needed until the
// site is fixed as per:
// https://github.com/golang/go/issues/70611
c, err := cap_.FromText("cap_setfcap=p")
if err != nil {
log.Fatalf("failed to parse: %v", err)
}
c.Fill(cap_.Effective, cap_.Permitted)
c.ClearFlag(cap_.Permitted)
c.Fill(cap_.Inheritable, cap_.Effective)
c.ClearFlag(cap_.Effective)
fmt.Println(c)
// Output: cap_setfcap=i
}
func ExampleSet_Export() {
// This example does not need to use a package alias `cap_`.
// It is declared this way to make examples on the go.dev doc
// site render and run. This workaround is needed until the
// site is fixed as per:
// https://github.com/golang/go/issues/70611
c, err := cap_.FromText("cap_setuid=ep")
if err != nil {
log.Fatalf("failed to parse: %v", err)
}
b1, err := c.Export()
if err != nil {
log.Fatalf("export failed: %v", err)
}
fmt.Printf("default %q export: %02x\n", c, b1)
cap_.MinExtFlagSize = 0
b2, err := c.Export()
if err != nil {
log.Fatalf("export failed: %v", err)
}
fmt.Printf("minimal %q export: %02x\n", c, b2)
// Output:
// default "cap_setuid=ep" export: 90c2015108808000000000000000000000000000000000000000000000
// minimal "cap_setuid=ep" export: 90c2015101808000
}
func ExampleImport() {
// This example does not need to use a package alias `cap_`.
// It is declared this way to make examples on the go.dev doc
// site render and run. This workaround is needed until the
// site is fixed as per:
// https://github.com/golang/go/issues/70611
d := []byte{0x90, 0xc2, 0x01, 0x51, 0x01, 0x80, 0x80, 0x00}
c, err := cap_.Import(d)
if err != nil {
log.Fatalf("failed to parse: %v", err)
}
fmt.Printf("import of %02x is %q\n", d, c)
// Output: import of 90c2015101808000 is "cap_setuid=ep"
}
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