https://github.com/msantos/pdeathsigexec-rs

signal process when parent exits
https://github.com/msantos/pdeathsigexec-rs

exec prctl procctl signal

Last synced: 3 days ago
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signal process when parent exits

• Host: GitHub
• URL: https://github.com/msantos/pdeathsigexec-rs
• Owner: msantos
• License: isc
• Created: 2023-08-18T10:30:16.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2024-07-29T11:19:03.000Z (5 months ago)
• Last Synced: 2024-11-02T01:06:56.719Z (about 2 months ago)
• Topics: exec, prctl, procctl, signal
• Language: Rust
• Size: 7.81 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# SYNOPSIS

pdeathsigexec *cmd* *...*

# DESCRIPTION

pdeathsigexec: signal process when parent exits

A subprocess whose parent exits may be re-parented to init (PID 1)

and continue to run. `pdeathsigexec` sets the process to have a signal

sent if the parent process terminates.

The "signal on parent termination" behaviour applies

to the executed process only and not descendents

([prctl(2)](https://man7.org/linux/man-pages/man2/prctl.2.html)):

```

The parent-death signal setting is cleared for the child of a fork(2).

It is also (since Linux 2.4.36 / 2.6.23) cleared when  executing  a

set-user-ID or set-group-ID binary, or a binary that has associated

capabilities (see capabilities(7)); otherwise, this value is preserved

across execve(2).

```

# EXAMPLES

```

$ sh -c "sleep inf" &

[1] 25880

$ kill -9 25880

$ pgrep -fa sleep

25882 sleep inf

```

## pdeathsigexec

```

$ sh -c "pdeathsigexec sleep inf" &

[1] 25926

$ kill -9 25926

$ pgrep -fa sleep

```

# Build

```

cargo build

```

# OPTIONS

## pdeathsigexec

-s/--signal

: set the termination signal (default `9` (SIGKILL))

# ENVIRONMENT VARIABLES

None.