The client-server system is a socket programming application in C language (Linux environment) which implements a pair of client and server that can achieve simple password verification to indicate the current market value of the stock.
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Server
gcc server.c -o server.o -
Client
gcc client.c -o client.o
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Server
./server.o [port number] -
Client
./client.o [IP address] [port number]
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Valid username and password
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Server
$./server.o 53598 Socket created! Bind completed! -------------------------------- Received username Received password Verified, sent back result -
Client
$ ./client.o 192/168.11.131 53598 Socket created! Connection succeed! -------------------------------- Please enter username: apple Please enter password: jP79bNs2 The corresponding market value is: 158.63
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Invalid username/password
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Server
$./server.o 53598 Socket created! Bind completed! -------------------------------- Received username Received password Username/password did not match -
Client
$ ./client.o 192/168.11.131 53598 Socket created! Connection succeed! -------------------------------- Please enter username: apple Please enter password: 123 Username/password did not match!
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Timeout for password
- Server
$./server.o 53598 Socket created! Bind completed! -------------------------------- Received username Timing out for password! - Client
$ ./client.o 192/168.11.131 53598 Socket created! Connection succeed! -------------------------------- Please enter username: apple Please enter password: 123 Verification message unreceived!
- Server
- Zhengguan Li