tools/systemd/tm_editor: move conversion of the year into getter and setter

the tm struct contains the year - 1900 but we added that

if we want to use the libc normalization correctly, the tm struct
must have the correct year in it, else the computations for timezones,
etc. fail

instead add a getter that adds the years and a setter that subtracts it again

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
This commit is contained in:
Dominik Csapak 2020-09-04 14:33:31 +02:00 committed by Dietmar Maurer
parent d5cf8f606c
commit cf103266b3
1 changed files with 3 additions and 4 deletions

View File

@ -10,13 +10,11 @@ pub struct TmEditor {
impl TmEditor { impl TmEditor {
pub fn new(epoch: i64, utc: bool) -> Result<Self, Error> { pub fn new(epoch: i64, utc: bool) -> Result<Self, Error> {
let mut t = if utc { gmtime(epoch)? } else { localtime(epoch)? }; let t = if utc { gmtime(epoch)? } else { localtime(epoch)? };
t.tm_year += 1900; // real years for clarity
Ok(Self { utc, t }) Ok(Self { utc, t })
} }
pub fn into_epoch(mut self) -> Result<i64, Error> { pub fn into_epoch(mut self) -> Result<i64, Error> {
self.t.tm_year -= 1900;
let epoch = if self.utc { timegm(&mut self.t)? } else { timelocal(&mut self.t)? }; let epoch = if self.utc { timegm(&mut self.t)? } else { timelocal(&mut self.t)? };
Ok(epoch) Ok(epoch)
} }
@ -31,6 +29,7 @@ impl TmEditor {
self.normalize_time() self.normalize_time()
} }
pub fn year(&self) -> libc::c_int { self.t.tm_year + 1900 } // see man mktime
pub fn hour(&self) -> libc::c_int { self.t.tm_hour } pub fn hour(&self) -> libc::c_int { self.t.tm_hour }
pub fn min(&self) -> libc::c_int { self.t.tm_min } pub fn min(&self) -> libc::c_int { self.t.tm_min }
pub fn sec(&self) -> libc::c_int { self.t.tm_sec } pub fn sec(&self) -> libc::c_int { self.t.tm_sec }
@ -89,7 +88,7 @@ impl TmEditor {
} }
pub fn set_year(&mut self, v: libc::c_int) -> Result<(), Error> { pub fn set_year(&mut self, v: libc::c_int) -> Result<(), Error> {
self.t.tm_year = v; self.t.tm_year = v - 1900;
self.normalize_time() self.normalize_time()
} }
} }