avoid sendfile bugs on 32bit machines:

https://github.com/python/cpython/issues/114077

copyparty/__main__.py

@@ -43,6 +43,7 @@ from .util import (
     DEF_MTH,
     IMPLICATIONS,
     JINJA_VER,
+    PY_DESC,
     PYFTPD_VER,
     SQLITE_VER,
     UNPLICATIONS,
@@ -50,7 +51,6 @@ from .util import (
     ansi_re,
     dedent,
     min_ex,
-    py_desc,
     pybin,
     termsize,
     wrap,
@@ -1380,7 +1380,7 @@ def main(argv: Optional[list[str]] = None) -> None:
         S_VERSION,
         CODENAME,
         S_BUILD_DT,
-        py_desc().replace("[", "\033[90m["),
+        PY_DESC.replace("[", "\033[90m["),
         SQLITE_VER,
         JINJA_VER,
         PYFTPD_VER,
@@ -1545,6 +1545,9 @@ def main(argv: Optional[list[str]] = None) -> None:
     if sys.version_info < (3, 6):
         al.no_scandir = True
 
+    if not hasattr(os, "sendfile"):
+        al.no_sendfile = True
+
     # signal.signal(signal.SIGINT, sighandler)
 
     SvcHub(al, dal, argv, "".join(printed)).run()

copyparty/httpcli.py

@@ -38,6 +38,7 @@ from .sutil import StreamArc, gfilter
 from .szip import StreamZip
 from .util import (
     APPLESAN_RE,
+    BITNESS,
     HTTPCODE,
     META_NOBOTS,
     UTC,
@@ -2962,7 +2963,7 @@ class HttpCli(object):
             use_sendfile = (
                 not self.tls  #
                 and not self.args.no_sendfile
-                and hasattr(os, "sendfile")
+                and (BITNESS > 32 or file_sz < 0x7fffFFFF)
             )
 
         #

copyparty/util.py

@@ -167,6 +167,12 @@ except:
         return struct.unpack(fmt.decode("ascii"), a)
 
 
+try:
+    BITNESS = struct.calcsize(b"P") * 8
+except:
+    BITNESS = struct.calcsize("P") * 8
+
+
 ansi_re = re.compile("\033\\[[^mK]*[mK]")
 
 
@@ -371,11 +377,6 @@ def py_desc() -> str:
     if ofs > 0:
         py_ver = py_ver[:ofs]
 
-    try:
-        bitness = struct.calcsize(b"P") * 8
-    except:
-        bitness = struct.calcsize("P") * 8
-
     host_os = platform.system()
     compiler = platform.python_compiler().split("http")[0]
 
@@ -383,7 +384,7 @@ def py_desc() -> str:
     os_ver = m.group(1) if m else ""
 
     return "{:>9} v{} on {}{} {} [{}]".format(
-        interp, py_ver, host_os, bitness, os_ver, compiler
+        interp, py_ver, host_os, BITNESS, os_ver, compiler
     )
 
 
@@ -422,8 +423,10 @@ except:
     PYFTPD_VER = "(None)"
 
 
+PY_DESC = py_desc()
+
 VERSIONS = "copyparty v{} ({})\n{}\n   sqlite v{} | jinja v{} | pyftpd v{}".format(
-    S_VERSION, S_BUILD_DT, py_desc(), SQLITE_VER, JINJA_VER, PYFTPD_VER
+    S_VERSION, S_BUILD_DT, PY_DESC, SQLITE_VER, JINJA_VER, PYFTPD_VER
 )