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authorVictor Stinner <victor.stinner@haypocalc.com>2011-07-05 09:34:18 (GMT)
committerVictor Stinner <victor.stinner@haypocalc.com>2011-07-05 09:34:18 (GMT)
commitd9fc85db7f644c36d8709af49c97bed62451e59a (patch)
tree9299bedf9eff79d445e85096ab9d5729fc166546 /Modules/_io/fileio.c
parent9797e29f86eac1504a518ee5a4bf5b3b53c24c63 (diff)
parentc655a726dba5799e3c221b6c95fee72516d3d7cf (diff)
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(merge 3.2) Issue #9611, #9015: FileIO.read() clamps the length to INT_MAX on Windows.
Diffstat (limited to 'Modules/_io/fileio.c')
-rw-r--r--Modules/_io/fileio.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/Modules/_io/fileio.c b/Modules/_io/fileio.c
index b3b9e44..3de1ff5 100644
--- a/Modules/_io/fileio.c
+++ b/Modules/_io/fileio.c
@@ -687,6 +687,10 @@ fileio_read(fileio *self, PyObject *args)
return fileio_readall(self);
}
+#if defined(MS_WIN64) || defined(MS_WINDOWS)
+ if (size > INT_MAX)
+ size = INT_MAX;
+#endif
bytes = PyBytes_FromStringAndSize(NULL, size);
if (bytes == NULL)
return NULL;
@@ -695,7 +699,11 @@ fileio_read(fileio *self, PyObject *args)
if (_PyVerify_fd(self->fd)) {
Py_BEGIN_ALLOW_THREADS
errno = 0;
+#if defined(MS_WIN64) || defined(MS_WINDOWS)
+ n = read(self->fd, ptr, (int)size);
+#else
n = read(self->fd, ptr, size);
+#endif
Py_END_ALLOW_THREADS
} else
n = -1;