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time: posix: use strftime from the libc crate.

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Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
This commit is contained in:
Lukas Wagner 2023-12-11 14:29:04 +01:00 committed by Wolfgang Bumiller
parent 228ce9d69c
commit 7033c497a0
1 changed files with 1 additions and 13 deletions
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14
proxmox-time/src/posix.rs
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@ -108,25 +108,13 @@ pub fn epoch_f64() -> f64 {
} }
} }
// rust libc bindings do not include strftime
#[link(name = "c")]
extern "C" {
#[link_name = "strftime"]
fn libc_strftime(
s: *mut libc::c_char,
max: libc::size_t,
format: *const libc::c_char,
time: *const libc::tm,
) -> libc::size_t;
}
/// Safe bindings to libc strftime /// Safe bindings to libc strftime
pub fn strftime(format: &str, t: &libc::tm) -> Result<String, Error> { pub fn strftime(format: &str, t: &libc::tm) -> Result<String, Error> {
let format = CString::new(format).map_err(|err| format_err!("{}", err))?; let format = CString::new(format).map_err(|err| format_err!("{}", err))?;
let mut buf = vec![0u8; 8192]; let mut buf = vec![0u8; 8192];
let res = unsafe { let res = unsafe {
libc_strftime( libc::strftime(
buf.as_mut_ptr() as *mut libc::c_char, buf.as_mut_ptr() as *mut libc::c_char,
buf.len() as libc::size_t, buf.len() as libc::size_t,
format.as_ptr(), format.as_ptr(),