Genova Z.'s Sockets.A programmer's introduction PDF

By Genova Z.

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7 REMOTE EXECUTION OF A WINDOWS CONSOLE APPLICATION Simple sockets operations can be used to accomplish tasks that otherwise hard to achieve. For example, by using sockets we can remotely execute an application. The sample code1 is presented. exe file) from the local host to the remote host. The program is executed on the remote host, and then stdout is returned to the local host. h> // Needed for printf() // Needed for exit() // Needed for memcpy() and strcpy() // Needed for Sleep() and Winsock stuff // Needed for file i/o constants // Needed for file i/o constants // Needed for open(), close(), and eof() #define PORT_NUM 1050 // Arbitrary port number for the server #define MAX_LISTEN 1 // Maximum number of listens to queue #define SIZE 256 // Size in bytes of transfer buffer void main(int argc, char *argv[]) { WORD wVersionRequested = MAKEWORD(1,1); // WSA functions WSADATA wsaData; // Winsock API data structure 1 This and other code presented is in part written by Ken Christensen and Karl S.

In the original BSD UNIX this involves the use of calls to sigaction() and fcntl(). An alternative to poll for the status of a socket through the select() call is to let the kernel inform the application about events via a SIGIO signal. In order to do that, a valid signal handler for SIGIO must be installed with sigaction(). The following program does not involve sockets, it merely provides a simple example on how to install a signal handler. h> // for pause() void catch_error(char *errorMessage); // for error handling void InterruptSignalHandler(int signalType); // handle interr.

FreeBSD The FreeBSD Project Mach micro-kernel system. Free Software Foundation HURD GNU Project Freely distributable implementation for 80x386, 80x486 Linux Linux Online Inc. and Pentium machines. 4-lite based server and emulation library that Helsinki University of provides free UNIX functionality to Mach based systems. Technology Mach-US Developed as part of the CMU MACH project. Carnegie Mellon University Maruti A time-based operating system research project. 4-lite derivative. The NetBSD Foundation, Inc.

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Sockets.A programmer's introduction by Genova Z.


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