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handle invalid mtime when formating entries 

otherwise operations like catalog shell panic when viewing pxar archives
containing such entries, e.g. with mtime very far ahead into the future.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
This commit is contained in:
Fabian Grünbichler 2020-09-11 14:34:37 +02:00 committed by Dietmar Maurer
parent 833eca6d2f
commit 7158b304f5
1 changed files with 11 additions and 8 deletions
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19
src/pxar/tools.rs
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@ -8,7 +8,7 @@ use std::path::Path;
use anyhow::{bail, format_err, Error};
use nix::sys::stat::Mode;
use pxar::{mode, Entry, EntryKind, Metadata};
use pxar::{mode, Entry, EntryKind, Metadata, format::StatxTimestamp};
/// Get the file permissions as `nix::Mode`
pub fn perms_from_metadata(meta: &Metadata) -> Result<Mode, Error> {
@ -114,13 +114,19 @@ fn mode_string(entry: &Entry) -> String {
)
}
pub fn format_single_line_entry(entry: &Entry) -> String {
fn format_mtime(mtime: &StatxTimestamp) -> String {
use chrono::offset::TimeZone;
match chrono::Local.timestamp_opt(mtime.secs, mtime.nanos) {
chrono::LocalResult::Single(mtime) => mtime.format("%Y-%m-%d %H:%M:%S").to_string(),
_ => format!("{}.{}", mtime.secs, mtime.nanos),
}
}
pub fn format_single_line_entry(entry: &Entry) -> String {
let mode_string = mode_string(entry);
let meta = entry.metadata();
let mtime = chrono::Local.timestamp(meta.stat.mtime.secs, meta.stat.mtime.nanos);
let (size, link) = match entry.kind() {
EntryKind::File { size, .. } => (format!("{}", *size), String::new()),
@ -134,7 +140,7 @@ pub fn format_single_line_entry(entry: &Entry) -> String {
"{} {:<13} {} {:>8} {:?}{}",
mode_string,
format!("{}/{}", meta.stat.uid, meta.stat.gid),
mtime.format("%Y-%m-%d %H:%M:%S"),
format_mtime(&meta.stat.mtime),
size,
entry.path(),
link,
@ -142,12 +148,9 @@ pub fn format_single_line_entry(entry: &Entry) -> String {
}
pub fn format_multi_line_entry(entry: &Entry) -> String {
use chrono::offset::TimeZone;
let mode_string = mode_string(entry);
let meta = entry.metadata();
let mtime = chrono::Local.timestamp(meta.stat.mtime.secs, meta.stat.mtime.nanos);
let (size, link, type_name) = match entry.kind() {
EntryKind::File { size, .. } => (format!("{}", *size), String::new(), "file"),
@ -196,6 +199,6 @@ pub fn format_multi_line_entry(entry: &Entry) -> String {
mode_string,
meta.stat.uid,
meta.stat.gid,
mtime.format("%Y-%m-%d %H:%M:%S"),
format_mtime(&meta.stat.mtime),
)
}