1nbd_connect_tcp(3)                  LIBNBD                  nbd_connect_tcp(3)
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NAME

6       nbd_connect_tcp - connect to NBD server over a TCP port
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SYNOPSIS

9        #include <libnbd.h>
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11        int nbd_connect_tcp (
12              struct nbd_handle *h, const char *hostname,
13              const char *port
14            );
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DESCRIPTION

17       Connect (synchronously) to the NBD server listening on "hostname:port".
18       The "port" may be a port name such as "nbd", or it may be a port number
19       as a string such as "10809".
20
21       This call returns when the connection has been made.  By default, this
22       proceeds all the way to transmission phase, but nbd_set_opt_mode(3) can
23       be used for manual control over option negotiation performed before
24       transmission phase.
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RETURN VALUE

27       If the call is successful the function returns 0.
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ERRORS

30       On error -1 is returned.
31
32       Refer to "ERROR HANDLING" in libnbd(3) for how to get further details
33       of the error.
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35       The following parameters must not be NULL: "h", "hostname", "port".
36       For more information see "Non-NULL parameters" in libnbd(3).
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HANDLE STATE

39       The handle must be newly created, otherwise this call will return an
40       error.
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VERSION

43       This function first appeared in libnbd 1.0.
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45       If you need to test if this function is available at compile time check
46       if the following macro is defined:
47
48        #define LIBNBD_HAVE_NBD_CONNECT_TCP 1
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SEE ALSO

51       nbd_aio_connect_tcp(3), nbd_create(3), nbd_set_opt_mode(3), libnbd(3).
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AUTHORS

54       Eric Blake
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56       Richard W.M. Jones
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59       Copyright Red Hat
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LICENSE

62       This library is free software; you can redistribute it and/or modify it
63       under the terms of the GNU Lesser General Public License as published
64       by the Free Software Foundation; either version 2 of the License, or
65       (at your option) any later version.
66
67       This library is distributed in the hope that it will be useful, but
68       WITHOUT ANY WARRANTY; without even the implied warranty of
69       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
70       Lesser General Public License for more details.
71
72       You should have received a copy of the GNU Lesser General Public
73       License along with this library; if not, write to the Free Software
74       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
75       02110-1301 USA
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79libnbd-1.18.1                     2023-10-31                nbd_connect_tcp(3)
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