C language function:getservbyport sample codes

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TITLE : Safari | Linux Socket Programming by Example -> Internet Services
You saw in the last section that it was possible to look up a service by name and protocol. The function getservbyport(3) allows you to also perform a lookup by port and protocol. The function synopsis is as follows:.......
http://alas.matf.bg.ac.rs/manuals/lspe/snode=60.html


TITLE : Safari | Linux Socket Programming by Example -> Internet Services
struct servent *getservbyport(int port, const char *proto);.......
http://alas.matf.bg.ac.rs/manuals/lspe/snode=60.html
TITLE : Safari | Linux Socket Programming by Example -> Internet Services
The pointer returned by getservbyport(3) is only valid until the next call to the same function........
http://alas.matf.bg.ac.rs/manuals/lspe/snode=60.html
TITLE : Safari | Linux Socket Programming by Example -> Internet Services
getservbyport(3) function.......
http://alas.matf.bg.ac.rs/manuals/lspe/snode=60.html
TITLE : Safari | Linux Socket Programming by Example -> Internet Services
getservbyport(3).......
http://alas.matf.bg.ac.rs/manuals/lspe/snode=60.html
TITLE : Safari | Linux Socket Programming by Example -> Internet Services
getservbyport(3) function.......
http://alas.matf.bg.ac.rs/manuals/lspe/snode=60.html
TITLE : Some common networking operations in Perl « \1
This is done using getservbyname() and getservbyport() for forward and inverse resolution respectively:.......
http://backreference.org/2014/12/11/some-common-networking-operations-in-perl/
TITLE : Some common networking operations in Perl « \1
my ($name, $aliases, $port, $proto) = getservbyport($port, $proto);.......
http://backreference.org/2014/12/11/some-common-networking-operations-in-perl/
TITLE : Some common networking operations in Perl « \1
$ perl -e 'use warnings; use strict; my ($name, $aliases, $port, $proto) = getservbyport($ARGV[0], $ARGV[1]); print "name is: $name, aliases is: $aliases, port is: $port, proto is: $proto\n";' 80 tcp.......
http://backreference.org/2014/12/11/some-common-networking-operations-in-perl/
TITLE : getnameinfo()
This function is the opposite of getaddrinfo(), that is, this function takes an already loaded struct sockaddr and does a name and service name lookup on it. It replaces the old gethostbyaddr() and getservbyport() functions........
http://beej.us/guide/bgnet/output/html/multipage/getnameinfoman.html
TITLE : Michael Thumann/privatewire.pm.txt( na) - lionzlI - CSDNq
if ($port !~ /^\d+$/) { ($name, $aliases, $port) = getservbyport($port, 'tcp');}.......
http://blog.csdn.net/lionzl/article/details/8569412
TITLE : How can I get ServerSocket port number? (Sockets and Internet Protocols forum at Coderanch)
struct servent *getservbyport(int port, const char *proto);.......
http://coderanch.com/t/204740/java/ServerSocket-port-number
TITLE : man getnameinfo - Shammerism
vides more flexibility than the gethostbyaddr(3) and getservbyport(3).......
http://d.hatena.ne.jp/shammer/20091116/1390810993
TITLE : man getnameinfo - Shammerism
Specifies that the service being looked up is a datagram service, and causes getservbyport(3) to be called with a second argument of ``udp'' instead of its default of ``tcp''........
http://d.hatena.ne.jp/shammer/20091116/1390810993
TITLE : 18.1. socket Low-level networking interface — Python 3.4.7rc1 documentation
socket.getservbyport(port[, protocolname]).......
http://docs.python.org/3.4/library/socket.html
TITLE : getservbyport Function - Network Programming for Microsoft Windows , Second Edition (Microsoft Programming Series)
struct servent *getservbyport( int port, const char *proto );.......
http://flylib.com/books/en/1.401.1.47/1/
TITLE : getservbyport Function - Network Programming for Microsoft Windows , Second Edition (Microsoft Programming Series)
sp = getservbyport( htons(80), NULL );.......
http://flylib.com/books/en/1.401.1.47/1/
TITLE : apue/6 at master zigorou/apue GitHub
* getservbyname(3), getservbyport(3).......
http://github.com/zigorou/apue/tree/master/6
TITLE : Server Site Request Forgery (SSRF) – All things in moderation
$service = getservbyport($port, "tcp");.......
http://hydrasky.com/network-security/server-site-request-forgery-ssrf/
TITLE : getnameinfo(3) - Linux man page
The getnameinfo() function is the inverse of getaddrinfo(3): it converts a socket address to a corresponding host and service, in a protocol-independent manner. It combines the functionality of gethostbyaddr(3) and getservbyport(3), but unlike those functions, getnameinfo() is reentrant and allows programs to eliminate IPv4-versus-IPv6 dependencies........
http://linux.die.net/man/3/getnameinfo
TITLE : getnameinfo(3) - Linux man page
accept(2), getpeername(2), getsockname(2), recvfrom(2), socket(2), getaddrinfo(3), gethostbyaddr(3), getservbyname(3), getservbyport(3), inet_ntop(3), hosts(5), services(5), hostname(7), named(8).......
http://linux.die.net/man/3/getnameinfo
TITLE : services(5) - Linux manual page
getservbyport(3), setservent(3), and endservent(3) support querying.......
http://man7.org/linux/man-pages/man5/services.5.html
TITLE : services(5) - Linux manual page
getservbyname(3), and getservbyport(3). However, this behavior.......
http://man7.org/linux/man-pages/man5/services.5.html
TITLE : services(5) - Linux manual page
listen(2), endservent(3), getservbyname(3), getservbyport(3),.......
http://man7.org/linux/man-pages/man5/services.5.html
TITLE : Ubuntu Manpage: services - Internet network services list
getservbyport(3), setservent(3), and endservent(3) support querying.......
http://manpages.ubuntu.com/manpages/trusty/man5/services.5.html
TITLE : Ubuntu Manpage: services - Internet network services list
getservbyname(3), and getservbyport(3). However, this behavior should.......
http://manpages.ubuntu.com/manpages/trusty/man5/services.5.html
TITLE : Ubuntu Manpage: services - Internet network services list
listen(2), endservent(3), getservbyname(3), getservbyport(3),.......
http://manpages.ubuntu.com/manpages/trusty/man5/services.5.html
TITLE : getservbyport function (Windows)
struct servent* FAR getservbyport(.......
http://msdn.microsoft.com/en-us/library/windows/desktop/ms738541(v=vs.85).aspx
TITLE : An Introduction to Socket Programming
But programmers don't scan /etc/services, they use library routines. The C library routines getservbyname(3N) (and getservbyport(3N) on the same page) each return a pointer to an object with the following structure containing the broken-out fields of a line in /etc/services........
http://ods.com.ua/win/eng/program/socket/socketprg.html
TITLE : Linux-UNIX-Programmierung 11.18 UNIX-Domain-Sockets (IPC)
/td> /td> 11.10.3 Service-Informationen getservbyname() und getservbyport().......
http://openbook.rheinwerk-verlag.de/linux_unix_programmierung/Kap11-017.htm
TITLE : FlowScan - a system to analyze and report on cflowd flow files
$ perl -le "print scalar(getservbyport(80, 'tcp'))".......
http://pages.cs.wisc.edu/~plonka/FlowScan/INSTALL.html
TITLE : Addressing, Protocol Families and Socket Types - Python Module of the Week
To reverse the service port lookup, use getservbyport()........
http://pymotw.com/2/socket/addressing.html
TITLE : Addressing, Protocol Families and Socket Types - Python Module of the Week
(socket.getservbyport(port), 'example.com', '/', '', '', '').......
http://pymotw.com/2/socket/addressing.html
TITLE : Class: Socket (Ruby 2.3.0)
getservbyport(port [, protocol_name]) => service click to toggle source.......
http://ruby-doc.org/stdlib-2.3.0/libdoc/socket/rdoc/Socket.html
TITLE : Class: Socket (Ruby 2.3.0)
Socket.getservbyport(80) #=> "www".......
http://ruby-doc.org/stdlib-2.3.0/libdoc/socket/rdoc/Socket.html
TITLE : Class: Socket (Ruby 2.3.0)
Socket.getservbyport(514, "tcp") #=> "shell".......
http://ruby-doc.org/stdlib-2.3.0/libdoc/socket/rdoc/Socket.html
TITLE : Class: Socket (Ruby 2.3.0)
Socket.getservbyport(514, "udp") #=> "syslog".......
http://ruby-doc.org/stdlib-2.3.0/libdoc/socket/rdoc/Socket.html
TITLE : Class: Socket (Ruby 2.3.0)
sock_s_getservbyport(int argc, VALUE *argv).......
http://ruby-doc.org/stdlib-2.3.0/libdoc/socket/rdoc/Socket.html
TITLE : Class: Socket (Ruby 2.3.0)
sp = getservbyport((int)htons((uint16_t)portnum), protoname);.......
http://ruby-doc.org/stdlib-2.3.0/libdoc/socket/rdoc/Socket.html
TITLE : portforwarding - Test if port open and forwarded using PHP - Stack Overflow
echo '

' . $host . ':' . $port . ' ' . '(' . getservbyport($port, 'tcp') . ') is open.

' . "\n";.......
http://stackoverflow.com/questions/2226374/test-if-port-open-and-forwarded-using-php
TITLE : Weird Snippets
portinfo = getservbyport(htons(portlist[c]), "tcp");.......
http://systhread.net/texts/201612ws.php
TITLE : boost/asio/detail/socket_ops.hpp - 1.39.0
servent* sptr = ::getservbyport(port, (flags & NI_DGRAM) ? "udp" : 0);.......
http://www.boost.org/doc/libs/1_39_0/boost/asio/detail/socket_ops.hpp
TITLE : Socket Library Functions - Cisco
getservbyport().......
http://www.cisco.com/c/en/us/td/docs/ios/sw_upgrades/interlink/r2_0/sock_pr/sklibfun.html
TITLE : Socket Library Functions - Cisco
getservbyport(), getprotobyname().......
http://www.cisco.com/c/en/us/td/docs/ios/sw_upgrades/interlink/r2_0/sock_pr/sklibfun.html
TITLE : Socket Library Functions - Cisco
getservbyport().......
http://www.cisco.com/c/en/us/td/docs/ios/sw_upgrades/interlink/r2_0/sock_pr/sklibfun.html
TITLE : Socket Library Functions - Cisco
The getservbyport() function is used to obtain the official name of a service when the port number associated with the service is known. This information is acquired from a service database maintained by the local system........
http://www.cisco.com/c/en/us/td/docs/ios/sw_upgrades/interlink/r2_0/sock_pr/sklibfun.html
TITLE : Socket Library Functions - Cisco
getservbyport() returns a pointer to an object with this structure containing information extracted from an internal network service database. This database is similar in function to the /etc/services file on UNIX-based systems:.......
http://www.cisco.com/c/en/us/td/docs/ios/sw_upgrades/interlink/r2_0/sock_pr/sklibfun.html
TITLE : Socket Library Functions - Cisco
All information is contained in a static area and must be copied if it is to be saved. The getservbyport() function sequentially searches from the beginning of the network service database until a matching port number is found, or until the end of the database is reached. If a protocol name is also supplied (not null), searches must also match the protocol........
http://www.cisco.com/c/en/us/td/docs/ios/sw_upgrades/interlink/r2_0/sock_pr/sklibfun.html
TITLE : Socket Library Functions - Cisco
The getservbyport() function returns a pointer to the servent structure, if successful. If unsuccessful, a null pointer is returned........
http://www.cisco.com/c/en/us/td/docs/ios/sw_upgrades/interlink/r2_0/sock_pr/sklibfun.html
TITLE : Socket Library Functions - Cisco
The getservbyport() function can return these error codes in the external integer h_errno:.......
http://www.cisco.com/c/en/us/td/docs/ios/sw_upgrades/interlink/r2_0/sock_pr/sklibfun.html
TITLE : Comeau C/C++ 4.3.3 for Windows!!
struct servent * PASCAL getservbyport(int,const char*);.......
http://www.comeaucomputing.com/4.3.0/minor/win95+/como433.html

Service and protocol lookup functions and the related name resolution functionality are not available. The Digi device does not currently maintain a database of symbolic service names. This means that the getservbyname(), getservbyport() and getprotobyname() functions are not available........
http://www.digi.com/wiki/developer/index.php/Digi_Python_Programmer's_Guide
TITLE : Perl Manual - Commands
getservbyport(PORT,PROTO).......
http://www.math.utah.edu/docs/info/perl_11.html
TITLE : Challenges - weblogic | apache | unix | weblogic server | unix server | middleware | weblogic admin | weblogic administration | middleware admin | weblogic admin tips | websphere | webserver
getservbyport(int port_number, const char *protocol_name).......
http://www.middlewareadmin.net/weblogic-issues
TITLE : Challenges - weblogic | apache | unix | weblogic server | unix server | middleware | weblogic admin | weblogic administration | middleware admin | weblogic admin tips | websphere | webserver
($name, $aliases, $port_number, $protocol_name) = getservbyport(7001, "tcp");.......
http://www.middlewareadmin.net/weblogic-issues
TITLE : BSD Socket Library | PACKT Books
The getaddrinfo() and getnameinfo() functions make the gethostbyname(), gethostbyaddr(), and getservbyport() functions obsolete. One of the main advantages that the getaddrinfo() and getnameinfo() functions has over the obsolete functions is that they are compatible with both IPv4 and IPv6 addresses........
http://www.packtpub.com/books/content/bsd-socket-library
TITLE : An Advanced Socket Communication Tutorial
We've also provided the functions getservbyport() and getservent(). The getservbyport() function has an interface similar to that provided by getservbyname(); an optional protocol name may be specified to qualify lookups........
http://www.pja.edu.pl/~jms/qnx/help/tcpip_4.25_en/prog_guide/sock_advanced_tut.html
TITLE : MultiNet V5.4 Programmer's Reference Ch01.htm
Port numbers are normally manipulated with the getservbyname() and getservbyport() functions. getservbyname() converts the ASCII service name to the numeric value, and getservbyport() converts the numeric value to the ASCII name........
http://www.process.com/docs/multinet5_4/PROGRAMMERS_REFERENCE/Ch01.htm
TITLE : CON33-C. Avoid race conditions when using library functions - SEI CERT C Coding Standard - CERT Secure Coding Standards
getservbyport() getservent() getutxent() getutxid() getutxline() gmtime() hcreate() hdestroy() hsearch() inet_ntoa() l64a() lgamma() lgammaf() lgammal() localeconv() localtime() lrand48() mblen() mbtowc() mrand48() nftw().......
http://www.securecoding.cert.org/confluence/display/c/CON33-C.+Avoid+race+conditions+when+using+library+functions
TITLE : Windows Sockets
* GetServByPort().......
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
* WSAAsyncGetServByPort().......
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
getservbyport()* Retrieve the service name and port corresponding to a port........
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
WSAAsyncGetServByPort() gethostbyname() function........
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
getservbyport().......
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
See Also WSAAsyncGetServByName(), getservbyport().......
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
getservbyport().......
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
An optional pointer to a protocol name. If this is NULL, getservbyport() returns the first service entry for which the port matches the s_port. Otherwise getservbyport() matches both the port and the proto........
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
getservbyport() returns a pointer a servent structure as described above for getservbyname(). The pointer which is returned points to a structure which is allocated by the Windows Sockets implementation. The application must never attempt to modify this structure or to free any of its components. Furthermore, only one copy of this structure is allocated per thread, and so the application should copy any information which it needs before issuing any other Windows Sockets API calls........
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
If no error occurs, getservbyport() returns a pointer to the servent structure described above. Otherwise it returns a NULL pointer and a specific error number may be retrieved by calling WSAGetLastError()........
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
WSAAsyncGetServByPort(), getservbyname().......
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
WSAAsyncGetServByPort().......
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
A pointer to a protocol name. This may be NULL, in which case WSAAsyncGetServByPort() will search for the first service entry for which s_port match the given port. Otherwise WSAAsyncGetServByPort() matches both port and proto........
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
If the asynchronous operation could not be initiated, WSAAsyncGetServByPort() returns a zero value, and a specific error number may be retrieved by calling WSAGetLastError()........
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
getservbyport(), WSACancelAsyncRequest().......
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
WSAAsyncGetHostByAddr(), WSAAsyncGetHostByName(), WSAAsyncGetProtoByNumber(), WSAAsyncGetProtoByName(), WSAAsyncGetHostByName(), WSAAsyncGetServByPort(), WSAAsyncGetServByName()........
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
struct servent FAR * PASCAL FAR getservbyport(int port, const char FAR * proto);.......
http://www.sockets.com/winsock.htm
TITLE : Windows Sockets
HANDLE PASCAL FAR WSAAsyncGetServByPort(HWND hWnd, u_int wMsg, int port,.......
http://www.sockets.com/winsock.htm
TITLE : A brief discussion on the Linux network APIs which will be used in client-server communications programming with C source codes
getservbyname(), getservbyport(), getservent()........
http://www.tenouk.com/Module39d.html
TITLE : Think400 - iSeries (AS/400) API interfaces
- Here's an RPG/IV example of the getservbyport() function:.......
http://www.think400.dk/apier_5.htm
TITLE : Think400 - iSeries (AS/400) API interfaces
p_servent = getservbyport( 443: *null );.......
http://www.think400.dk/apier_5.htm
TITLE : Think400 - iSeries (AS/400) API interfaces
p_servent = getservbyport( 443: 'udp' );.......
http://www.think400.dk/apier_5.htm
TITLE : Think400 - iSeries (AS/400) API interfaces
If you need to call the getservbyport() function repeatedly, the.......
http://www.think400.dk/apier_5.htm
TITLE : Think400 - iSeries (AS/400) API interfaces
getservbyport() calls. The getservent() function enables you to retrieve a.......
http://www.think400.dk/apier_5.htm
TITLE : getservbyport - Always returning NULL servent | Unix Linux Forums | Programming
service = getservbyport(25, NULL);.......
http://www.unix.com/programming/95196-getservbyport-always-returning-null-servent.html
TITLE : getservbyport - Always returning NULL servent | Unix Linux Forums | Programming
perror("getservbyport()");.......
http://www.unix.com/programming/95196-getservbyport-always-returning-null-servent.html
TITLE : getservbyport - Always returning NULL servent | Unix Linux Forums | Programming
getservbyport(): Success.......
http://www.unix.com/programming/95196-getservbyport-always-returning-null-servent.html
TITLE : getservbyport - Always returning NULL servent | Unix Linux Forums | Programming
The getservent(), getservbyname() and getservbyport() functions return.......
http://www.unix.com/programming/95196-getservbyport-always-returning-null-servent.html
TITLE : getservbyport - Always returning NULL servent | Unix Linux Forums | Programming
service = getservbyport(htons(25), NULL);.......
http://www.unix.com/programming/95196-getservbyport-always-returning-null-servent.html
TITLE : getservbyport - Always returning NULL servent | Unix Linux Forums | Programming
perror("getservbyport()");.......
http://www.unix.com/programming/95196-getservbyport-always-returning-null-servent.html
TITLE : getservbyport - Always returning NULL servent | Unix Linux Forums | Programming
The getservbyport() function returns a servent structure for the line that matches.......
http://www.unix.com/programming/95196-getservbyport-always-returning-null-servent.html
TITLE : Program examples on InetNtop()/inet_ntop() and InetPton()/inet_pton()
struct servent FAR *getservbyport(.......
http://www.winsocketdotnetworkprogramming.com/winsock2programming/winsock2advancedInternet3c.html
TITLE : Program examples on InetNtop()/inet_ntop() and InetPton()/inet_pton()
HANDLE WSAAsyncGetServByPort(.......
http://www.winsocketdotnetworkprogramming.com/winsock2programming/winsock2advancedInternet3c.html
TITLE : Program examples on InetNtop()/inet_ntop() and InetPton()/inet_pton()
The 11004 error code is WSANO_DATA which is defined as gValid name, no data record of requested type.h This error possibly indicates the requested name is valid and was found in the database, but it does not have the correct associated data being resolved for. In this example case, it is normal. The following example demonstrates the use of getservbyport() function........
http://www.winsocketdotnetworkprogramming.com/winsock2programming/winsock2advancedInternet3c.html
TITLE : Program examples on InetNtop()/inet_ntop() and InetPton()/inet_pton()
servptr = getservbyport(ntohs(services[i]), NULL);.......
http://www.winsocketdotnetworkprogramming.com/winsock2programming/winsock2advancedInternet3c.html
TITLE : Program examples on InetNtop()/inet_ntop() and InetPton()/inet_pton()
printf ("\ngetservbyport() - %d failed with error code %ld\n", services[i], WSAGetLastError());.......
http://www.winsocketdotnetworkprogramming.com/winsock2programming/winsock2advancedInternet3c.html
TITLE : Program examples on InetNtop()/inet_ntop() and InetPton()/inet_pton()
printf("\ngetservbyport() is OK - %d\n", services[i]);.......
http://www.winsocketdotnetworkprogramming.com/winsock2programming/winsock2advancedInternet3c.html
TITLE : Sockets
getservbyport(int port, const char *proto) returns a servent structure for the line that matches the port port given in network byte order using protocol proto. If proto is NULL, any protocol will be matched........
http://www.yolinux.com/TUTORIALS/Sockets.html
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