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// +build openbsd
package main
import (
"fmt"
"log"
"strings"
"golang.org/x/sys/unix"
"tildegit.org/andinus/cetus/cache"
)
func main() {
unveil()
app()
}
func unveil() {
unveilL := make(map[string]string)
// We unveil the whole cache directory.
err = unix.Unveil(cache.Dir(), "rwc")
if err != nil {
log.Fatal(err)
}
unveilL["/dev/null"] = "rw" // required by feh
unveilL["/etc/resolv.conf"] = "r"
// ktrace output
unveilL["/usr/libexec/ld.so"] = "r"
unveilL["/var/run/ld.so.hints"] = "r"
unveilL["/usr/lib"] = "r"
unveilL["/dev/urandom"] = "r"
unveilL["/etc/hosts"] = "r"
unveilL["/etc/ssl"] = "r"
for k, v := range unveilL {
err = unix.Unveil(k, v)
if err != nil && err.Error() == "no such file or directory" {
log.Printf("WARN: Unveil failed on %s", k)
} else if err != nil {
log.Fatal(fmt.Sprintf("%s :: %s\n%s", k, v,
err.Error()))
}
}
err = unveilCmd("feh")
if err != nil {
log.Fatal(err)
}
err = unveilCmd("notify-send")
if err != nil {
log.Fatal(err)
}
// Block further unveil calls
err = unix.UnveilBlock()
if err != nil {
log.Fatal(err)
}
}
// unveilCmd will unveil commands.
func unveilCmd(cmd string) error {
pathList := strings.Split(getEnv("PATH", ""), ":")
for _, path := range pathList {
err = unix.Unveil(fmt.Sprintf("%s/%s", path, cmd), "rx")
if err != nil && err.Error() != "no such file or directory" {
return err
}
}
return nil
}
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