1nbd_get_structured_replies_negotiatedL(I3Bn)NbBdD_get_structured_replies_negotiated(3)
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NAME

6       nbd_get_structured_replies_negotiated - see if structured replies are
7       in use
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SYNOPSIS

10        #include <libnbd.h>
11
12        int nbd_get_structured_replies_negotiated (
13              struct nbd_handle *h
14            );
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DESCRIPTION

17       After connecting you may call this to find out if the connection is
18       using structured replies.  Note that this setting is sticky; this can
19       return true even after a second nbd_opt_structured_reply(3) returns
20       false because the server detected a duplicate request.
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22       Note that if the connection negotiates extended headers, this function
23       returns true (as extended headers imply structured replies) even if no
24       explicit request for structured replies was attempted.
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RETURN VALUE

27       This call returns a boolean value.
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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".  For more information
36       see "Non-NULL parameters" in libnbd(3).
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HANDLE STATE

39       The handle must be negotiating, or connected with the server, or shut
40       down, otherwise this call will return an error.
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VERSION

43       This function first appeared in libnbd 1.2.
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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:
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48        #define LIBNBD_HAVE_NBD_GET_STRUCTURED_REPLIES_NEGOTIATED 1
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SEE ALSO

51       nbd_create(3), nbd_get_extended_headers_negotiated(3),
52       nbd_get_protocol(3), nbd_get_request_structured_replies(3),
53       nbd_opt_extended_headers(3), nbd_opt_structured_reply(3),
54       nbd_set_request_structured_replies(3), libnbd(3).
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AUTHORS

57       Eric Blake
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59       Richard W.M. Jones
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62       Copyright Red Hat
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LICENSE

65       This library is free software; you can redistribute it and/or modify it
66       under the terms of the GNU Lesser General Public License as published
67       by the Free Software Foundation; either version 2 of the License, or
68       (at your option) any later version.
69
70       This library is distributed in the hope that it will be useful, but
71       WITHOUT ANY WARRANTY; without even the implied warranty of
72       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
73       Lesser General Public License for more details.
74
75       You should have received a copy of the GNU Lesser General Public
76       License along with this library; if not, write to the Free Software
77       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
78       02110-1301 USA
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82libnbd-1.18.1                     2023-n1b0d-_3g1et_structured_replies_negotiated(3)
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