From 261236e30272d3dfde4188c27ce90ed98f48d386 Mon Sep 17 00:00:00 2001
From: ed <s@ocv.me>
Date: Sun, 18 May 2025 21:34:38 +0000
Subject: [PATCH] st_mtime can be -11644473600 on win64 fat16 vhd

---
 bin/u2c.py           | 2 +-
 copyparty/httpcli.py | 8 ++++----
 copyparty/tftpd.py   | 3 ++-
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/bin/u2c.py b/bin/u2c.py
index 11ab733d..4d6a4d1b 100755
--- a/bin/u2c.py
+++ b/bin/u2c.py
@@ -1289,7 +1289,7 @@ class Ctl(object):
                 if self.ar.jw:
                     print("%s  %s" % (wark, vp))
                 else:
-                    zd = datetime.datetime.fromtimestamp(file.lmod, UTC)
+                    zd = datetime.datetime.fromtimestamp(max(0, file.lmod), UTC)
                     dt = "%04d-%02d-%02d %02d:%02d:%02d" % (
                         zd.year,
                         zd.month,
diff --git a/copyparty/httpcli.py b/copyparty/httpcli.py
index 3f444260..c33985a9 100644
--- a/copyparty/httpcli.py
+++ b/copyparty/httpcli.py
@@ -1412,7 +1412,7 @@ class HttpCli(object):
             desc = "%s - %s" % (tag_a, tag_t) if tag_t and tag_a else (tag_t or tag_a)
             desc = html_escape(desc, True, True) if desc else title
             mime = html_escape(guess_mime(title))
-            lmod = formatdate(i["ts"])
+            lmod = formatdate(max(0, i["ts"]))
             zsa = (iurl, iurl, title, desc, lmod, iurl, mime, i["sz"])
             zs = (
                 """\
@@ -1569,7 +1569,7 @@ class HttpCli(object):
         for x in fgen:
             rp = vjoin(vtop, x["vp"])
             st: os.stat_result = x["st"]
-            mtime = st.st_mtime
+            mtime = max(0, st.st_mtime)
             if stat.S_ISLNK(st.st_mode):
                 try:
                     st = bos.stat(os.path.join(tap, x["vp"]))
@@ -3978,7 +3978,7 @@ class HttpCli(object):
             if ptop is not None:
                 assert job and ap_data  # type: ignore  # !rm
                 sz = job["size"]
-                file_ts = job["lmod"]
+                file_ts = max(0, job["lmod"])
                 editions["plain"] = (ap_data, sz)
                 break
 
@@ -6120,7 +6120,7 @@ class HttpCli(object):
                 margin = "-"
 
             sz = inf.st_size
-            zd = datetime.fromtimestamp(linf.st_mtime, UTC)
+            zd = datetime.fromtimestamp(max(0, linf.st_mtime), UTC)
             dt = "%04d-%02d-%02d %02d:%02d:%02d" % (
                 zd.year,
                 zd.month,
diff --git a/copyparty/tftpd.py b/copyparty/tftpd.py
index 1ed2b6f4..d8e06755 100644
--- a/copyparty/tftpd.py
+++ b/copyparty/tftpd.py
@@ -284,6 +284,7 @@ class Tftpd(object):
             if not ptn or not ptn.match(fn.lower()):
                 return None
 
+        tsdt = datetime.fromtimestamp
         vn, rem = self.asrv.vfs.get(vpath, "*", True, False)
         fsroot, vfs_ls, vfs_virt = vn.ls(
             rem,
@@ -296,7 +297,7 @@ class Tftpd(object):
         dirs1 = [(v.st_mtime, v.st_size, k + "/") for k, v in vfs_ls if k in dnames]
         fils1 = [(v.st_mtime, v.st_size, k) for k, v in vfs_ls if k not in dnames]
         real1 = dirs1 + fils1
-        realt = [(datetime.fromtimestamp(mt, UTC), sz, fn) for mt, sz, fn in real1]
+        realt = [(tsdt(max(0, mt), UTC), sz, fn) for mt, sz, fn in real1]
         reals = [
             (
                 "%04d-%02d-%02d %02d:%02d:%02d"