Daniel Stenberg wrote:
> On Wed, 18 Mar 2009, Heiner Steven wrote:
>
>> Unfortunately it does not work: the program "hangs" in the library
>> call libssh2_sftp_init() and does not return.
>
> Are you using a blocking or non-blocking socket?
I tried both. As a default I used a blocking socket, resulting in
the symptom decribed. When I modified the code to use a non-blocking
socket (libssh2_session_set_blocking(session, 0)) the function
returns several times (maybe 10, 20 times) with
LIBSSH2SFTP_EAGAIN == LIBSSH2_ERROR_EAGAIN == -37
and blocks afterwards.
>> #0 0x00007f6fe65790d5 in recv () from /lib/libc.so.6
>> #1 0x000000000042a62a in _libssh2_packet_read (session=0x16546d0)
>> at transport.c:362
>> #2 0x00000000004116dd in libssh2_channel_read_ex (channel=0x165ca40,
>> stream_id=0, buf=0x7fffef643a10 "Ð:dïÿ\177", buflen=4) at
>> channel.c:1515
>>
>> "strace" shows the process blocking in "recvfrom(3, ...".
>>
>> Is this a known problem?
>
> No it isn't, but I'll admit I don't do a lot of tests with blocking
> sockets.
The problem also exists with non-blocking sockets.
Heiner
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Received on 2009-03-20