The Linux Programming Interface

Sockets: Introduction 1157 Figure 56-2: A pending socket connection The kernel must record some information about each pending c ...

1158 Chapter 56 The key point to understand about accept() is that it creates a new socket, and it is this new socket that is co ...

Sockets: Introduction 1159 56.5.4 I/O on Stream Sockets A pair of connected stream sockets provides a bidirectional communicatio ...

1160 Chapter 56 In order to allow another application to send it datagrams (letters), an applica- tion uses bind() to bind its ...

Sockets: Introduction 1161 The return value and the first three arguments to these system calls are the same as for read() and w ...

1162 Chapter 56 56.6.2 Using connect() with Datagram Sockets Even though datagram sockets are connectionless, the connect() syst ...

Sockets: Introduction 1163 A typical stream socket server creates its socket using socket(), and then binds the socket to a well ...

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Chapter 57: Sockets: UNIX Domain This chapter looks at the use of UNIX domain sockets, which allow communication between process ...

1166 Chapter 57 In order to bind a UNIX domain socket to an address, we initialize a sockaddr_un structure, and then pass a (cas ...

Sockets: UNIX Domain 1167 z It is usual to bind a socket to an absolute pathname, so that the socket resides at a fixed address ...

1168 Chapter 57 Listing 57-3: A simple UNIX domain stream socket server –––––––––––––––––––––––––––––––––––––––––––––––––––––– s ...

Sockets: UNIX Domain 1169 if (close(cfd) == -1) errMsg("close"); } } –––––––––––––––––––––––––––––––––––––––––––––––––––––– sock ...

1170 Chapter 57 z Construct an address structure for the server’s socket, bind the socket to that address, and mark the socket a ...

Sockets: UNIX Domain 1171 57.3 Datagram Sockets in the UNIX Domain In the generic description of datagram sockets that we provid ...

1172 Chapter 57 Listing 57-6: A simple UNIX domain datagram server –––––––––––––––––––––––––––––––––––––––––––––––––––––sockets/ ...

Sockets: UNIX Domain 1173 Listing 57-7: A simple UNIX domain datagram client ––––––––––––––––––––––––––––––––––––––––––––––––––– ...

1174 Chapter 57 The following shell session log demonstrates the use of the server and client programs: $ ./ud_ucase_sv & [1 ...

Sockets: UNIX Domain 1175 This socketpair() system call can be used only in the UNIX domain; that is, domain must be specified a ...

1176 Chapter 57 To create an abstract binding, we specify the first byte of the sun_path field as a null byte (\0). This disting ...