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swab(1): uses pledge(2)

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This commit is contained in:
Emma Tebibyte 2024-08-10 19:16:26 -06:00
parent baa75a2619
commit 1003c82d23
Signed by: emma
GPG Key ID: 06FA419A1698C270
1 changed files with 12 additions and 0 deletions
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12
src/swab.rs
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@ -32,6 +32,10 @@ use getopt::GetOpt;
use sysexits::{ EX_IOERR, EX_OK, EX_OSERR, EX_USAGE };
use strerror::StrError;
#[cfg(target_os="openbsd")] extern crate openbsd;
#[cfg(target_os="openbsd")] use openbsd::{ Promises, pledge };
fn oserr(argv0: &str, e: Error) -> ExitCode {
eprintln!("{}: {}", argv0, e.strerror());
ExitCode::from(EX_OSERR as u8)
@ -49,6 +53,14 @@ fn usage(s: &str) -> ExitCode {
fn main() -> ExitCode {
let argv = args().collect::<Vec<String>>();
if cfg!(target_os="openbsd") {
let promises = Promises::new("stdio");
if let Err(e) = pledge(Some(promises), None) {
return oserr(&argv[0], e);
}
}
let mut buf: Vec<u8> = Vec::new(); // holds the sequence getting swabbed
let mut input = stdin();
let mut output = stdout().lock();