view tests/sslcerts/pub-not-yet.pem @ 45095:8e04607023e5

procutil: ensure that procutil.std{out,err}.write() writes all bytes

Python 3 offers different kind of streams and it’s not guaranteed for all of
them that calling write() writes all bytes.

When Python is started in unbuffered mode, sys.std{out,err}.buffer are
instances of io.FileIO, whose write() can write less bytes for
platform-specific reasons (e.g. Linux has a 0x7ffff000 bytes maximum and could
write less if interrupted by a signal; when writing to Windows consoles, it’s
limited to 32767 bytes to avoid the "not enough space" error). This can lead to
silent loss of data, both when using sys.std{out,err}.buffer (which may in fact
not be a buffered stream) and when using the text streams sys.std{out,err}
(I’ve created a CPython bug report for that:
https://bugs.python.org/issue41221).

Python may fix the problem at some point. For now, we implement our own wrapper
for procutil.std{out,err} that calls the raw stream’s write() method until all
bytes have been written. We don’t use sys.std{out,err} for larger writes, so I
think it’s not worth the effort to patch them.

-----BEGIN CERTIFICATE-----
MIIDNTCCAh2gAwIBAgIJAJvD5nejIHr2MA0GCSqGSIb3DQEBCwUAMDExEjAQBgNV
BAMMCWxvY2FsaG9zdDEbMBkGCSqGSIb3DQEJARYMaGdAbG9jYWxob3N0MB4XDTMw
MDEwMTA4MDAwOFoXDTMwMDEwMjA4MDAwOFowMTESMBAGA1UEAwwJbG9jYWxob3N0
MRswGQYJKoZIhvcNAQkBFgxoZ0Bsb2NhbGhvc3QwggEiMA0GCSqGSIb3DQEBAQUA
A4IBDwAwggEKAoIBAQDZSC3uNCsP674m0h9dmlV6nM4C59xfgIygdX3mpldmaXaO
4anHdPvCNA8H8g+g6lEb0KgJp6Qor5sipBfWo26JRrYKypyE1By5raOzkNO22ZFg
L5/AdpBzRRjVAp7/Svw0VfVeh4hZ+4v7RQARGgjXOaG72nHnfboLs+jIE8i5tPR6
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/sU2tYxVP0vwrLrlzKAJ4niURbVcHXD/qtBiNpKfAgMBAAGjUDBOMB0GA1UdDgQW
BBT6fA08JcG+SWBN9Y+p575xcFfIVjAfBgNVHSMEGDAWgBT6fA08JcG+SWBN9Y+p
575xcFfIVjAMBgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQC0VDzAqPiL
6U8yqaQqXdS6iK49yDQe9qzxzNnAZnj4YCsa5+qYSf+jl49Rak+pGw3AmN9gl6xq
aaP5xAlS8F0lnfZ5NcXmmp4Lt25qdu9J9qIPEAL4/ucirDr/cphCbDtzaWsrfi9j
YjVzSqoSEdnV1x9GkkLVwQRmA+D/2+95pgx6UNchqMbXuEQkAv9kVOzSG62OOAzO
z2Wct6b+DFbfFI0xcvKeJRGogjkd5QrF1XxU7e5u17DAN7/nhahv43ol3eC/fUiH
ITZpEc+/WdVtUwZQtoEQuBLB1Mc8QvYUUksUv9+KVjZ4o2oqApup7k7oMSPYNPTf
2O99CXjOCl9k
-----END CERTIFICATE-----