From 1384bd9161335471292b5ce1f6e389b9163b4e3e Mon Sep 17 00:00:00 2001 From: Lukas Wagner Date: Mon, 11 Dec 2023 14:29:07 +0100 Subject: [PATCH] time: posix: add epoch_to_rfc2822 This is the format used in the 'Date' header in mails. Signed-off-by: Lukas Wagner --- proxmox-time/src/posix.rs | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/proxmox-time/src/posix.rs b/proxmox-time/src/posix.rs index 9c8002a0..73a5368b 100644 --- a/proxmox-time/src/posix.rs +++ b/proxmox-time/src/posix.rs @@ -371,6 +371,15 @@ fn parse_rfc3339_do(input_str: &str) -> Result { Ok(epoch) } +/// Convert Unix epoch into RFC2822 local time with TZ +pub fn epoch_to_rfc2822(epoch: i64) -> Result { + let localtime = localtime(epoch)?; + let locale = Locale::new(libc::LC_ALL, Locale::C)?; + let rfc2822_date = strftime_l("%a, %d %b %Y %T %z", &localtime, &locale)?; + + Ok(rfc2822_date) +} + #[test] fn test_leap_seconds() { let convert_reconvert = |epoch| { @@ -490,3 +499,11 @@ fn test_strftime_l() { assert_eq!(formatted, "Tue, 29 Dec 2020 17:30:00 +0000"); } + +#[test] +fn test_epoch_to_rfc2822() { + let epoch = 1609263000; + // Output is TZ-dependent, so only verify that it did not fail. + // Internally, it uses strftime_l which we test already. + assert!(epoch_to_rfc2822(epoch).is_ok()); +}