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accept function
C language, 165
described 38, 45–47
Java, 185
Perl method, 223–224
Python method, 202
Ruby method, 248–249
Tcl method, 266–267
Acronyms, 433–435
Addresses
address in use error, 89, 149
ARP (Address Resolution Protocol), 20
C language and socket addresses, 163–164
Java and socket addresses, 182–183
Java methods for host information, 192
local, options, 65, 81, 89–90
MAC address, 20
Perl and socket addresses, 220–221
Perl methods for host information, 231
Python and socket addresses, 200
Python methods for host information, 208
Ruby and socket addresses, 245–246
Ruby methods for host information, 254–255
Tcl methods for host information, 270–271
Tcl, and socket addresses 266
wildcard, 43 see also IP address
API functions
BSD API functions, 38, 60
C language, 161–162
endianness of parameters, 146–147
input and output parameters, 152–153
Java, 175–180
Perl, 217–218, 234–235
Python, 197–198, 210–213
Ruby, 239–243
Tcl, 261–262
using return values, 144–146, 152 see also specific functions
Application layer
communication via, 5–6, 12
packet processing in network stack, 13–15
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