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Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" %%%LICENSE_END .\" .\" @(#)getpeername.2 6.5 (Berkeley) 3/10/91 .\" .\" Modified Sat Jul 24 16:37:50 1993 by Rik Faith .\" Modified Thu Jul 30 14:37:50 1993 by Martin Schulze .\" Modified Sun Mar 28 21:26:46 1999 by Andries Brouwer .\" Modified 17 Jul 2002, Michael Kerrisk .\" Added 'socket' to NAME, so that "man -k socket" will show this page. .\" .\"******************************************************************* .\" .\" This file was generated with po4a. Translate the source file. .\" .\"******************************************************************* .TH GETPEERNAME 2 "15 września 2017 r." Linux "Podręcznik programisty Linuksa" .SH NAZWA getpeername \- pobranie nazwy drugiej strony połączonego gniazda .SH SKŁADNIA \fB#include \fP .PP \fBint getpeername(int \fP\fIsockfd\fP\fB, struct sockaddr *\fP\fIaddr\fP\fB, socklen_t *\fP\fIaddrlen\fP\fB);\fP .SH OPIS \fBgetpeername\fP() returns the address of the peer connected to the socket \fIsockfd\fP, in the buffer pointed to by \fIaddr\fP. The \fIaddrlen\fP argument should be initialized to indicate the amount of space pointed to by \fIaddr\fP. On return it contains the actual size of the name returned (in bytes). The name is truncated if the buffer provided is too small. .PP The returned address is truncated if the buffer provided is too small; in this case, \fIaddrlen\fP will return a value greater than was supplied to the call. .SH "WARTOŚĆ ZWRACANA" Po pomyślnym zakończeniu zwracane jest zero. Po błędzie zwracane jest \-1 i odpowiednio ustawiane jest \fIerrno\fP. .SH BŁĘDY .TP \fBEBADF\fP Argument \fIsockfd\fP nie jest prawidłowym deskryptorem. .TP \fBEFAULT\fP Parametr \fIaddr\fP wskazuje poza dostępną przestrzeń adresową procesu. .TP \fBEINVAL\fP \fIaddrlen\fP is invalid (e.g., is negative). .TP \fBENOBUFS\fP Dostępna ilość zasobów systemowych jest niewystarczająca dla wykonania operacji. .TP \fBENOTCONN\fP Gniazdo nie jest podłączone. .TP \fBENOTSOCK\fP The file descriptor \fIsockfd\fP does not refer to a socket. .SH "ZGODNE Z" SVr4, 4.4BSD (funkcja \fBgetpeername\fP() pojawiła się pierwotnie w 4.2BSD). .SH UWAGI For background on the \fIsocklen_t\fP type, see \fBaccept\fP(2). .PP For stream sockets, once a \fBconnect\fP(2) has been performed, either socket can call \fBgetpeername\fP() to obtain the address of the peer socket. On the other hand, datagram sockets are connectionless. Calling \fBconnect\fP(2) on a datagram socket merely sets the peer address for outgoing datagrams sent with \fBwrite\fP(2) or \fBrecv\fP(2). The caller of \fBconnect\fP(2) can use \fBgetpeername\fP() to obtain the peer address that it earlier set for the socket. However, the peer socket is unaware of this information, and calling \fBgetpeername\fP() on the peer socket will return no useful information (unless a \fBconnect\fP(2) call was also executed on the peer). Note also that the receiver of a datagram can obtain the address of the sender when using \fBrecvfrom\fP(2). .SH "ZOBACZ TAKŻE" \fBaccept\fP(2), \fBbind\fP(2), \fBgetsockname\fP(2), \fBip\fP(7), \fBsocket\fP(7), \fBunix\fP(7) .SH "O STRONIE" Angielska wersja tej strony pochodzi z wydania 5.10 projektu Linux \fIman\-pages\fP. Opis projektu, informacje dotyczące zgłaszania błędów oraz najnowszą wersję oryginału można znaleźć pod adresem \%https://www.kernel.org/doc/man\-pages/. .SH TŁUMACZENIE Autorami polskiego tłumaczenia niniejszej strony podręcznika są: Przemek Borys i Andrzej Krzysztofowicz . Niniejsze tłumaczenie jest wolną dokumentacją. Bliższe informacje o warunkach licencji można uzyskać zapoznając się z .UR https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License w wersji 3 .UE lub nowszej. Nie przyjmuje się ŻADNEJ ODPOWIEDZIALNOŚCI. Błędy w tłumaczeniu strony podręcznika prosimy zgłaszać na adres .MT manpages-pl-list@lists.sourceforge.net .ME .