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Sanitize environment before starting backend processes (rclone, ssh)

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The restic security model includes full trust of the local machine, so
this should not fix any actual security problems, but it's better to be
safe than sorry.

Fixes #2192.
This commit is contained in:
greatroar
2020-10-03 13:27:23 +02:00
parent 4875f7b659
commit 11fbaaae9a
5 changed files with 67 additions and 12 deletions
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5
internal/backend/foreground_solaris.go
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@@ -7,10 +7,7 @@ import (
"github.com/restic/restic/internal/errors"
)
// StartForeground runs cmd in the foreground, by temporarily switching to the
// new process group created for cmd. The returned function `bg` switches back
// to the previous process group.
func StartForeground(cmd *exec.Cmd) (bg func() error, err error) {
func startForeground(cmd *exec.Cmd) (bg func() error, err error) {
// run the command in it's own process group so that SIGINT
// is not sent to it.
cmd.SysProcAttr = &syscall.SysProcAttr{