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>BIND(2)                       System Calls Manual                      BIND(2)
 
NAME
     bind - bind a name to a socket
 
SYNOPSIS
     #include &lt;sys/types.h&#62;
     #include &lt;sys/socket.h&#62;
 
     int
     bind(int s, const struct sockaddr *name, socklen_t namelen);
 
DESCRIPTION
     bind() assigns a name to an unnamed socket.  When a socket is created
     with socket(2) it exists in a name space (address family) but has no name
     assigned.  bind() requests that name be assigned to the socket.
 
NOTES
     Binding a name in the UNIX domain creates a socket in the file system
     that must be deleted by the caller when it is no longer needed (using
     unlink(2)).
 
     The rules used in name binding vary between communication domains.  Con-
     sult the manual entries in section 4 for detailed information.
 
RETURN VALUES
     If the bind is successful, a 0 value is returned.  A return value of -1
     indicates an error, which is further specified in the global errno.
 
ERRORS
     The bind() call will fail if:
 
     [EBADF]            S is not a valid descriptor.
 
     [ENOTSOCK]         S is not a socket.
 
     [EADDRNOTAVAIL]    The specified address is not available from the local
                        machine.
 
     [EADDRINUSE]       The specified address is already in use.
 
     [EINVAL]           The socket is already bound to an address.
 
     [EINVAL]           The family of the socket and that requested in
                        name-&#62;sa_family are not equivalent.
 
     [EACCES]           The requested address is protected, and the current
                        user has inadequate permission to access it.
 
     [EFAULT]           The name parameter is not in a valid part of the user
                        address space.
 
     The following errors are specific to binding names in the UNIX domain.
 
     [ENOTDIR]          A component of the path prefix is not a directory.
 
     [ENAMETOOLONG]     A component of a pathname exceeded {NAME_MAX} charac-
                        ters, or an entire path name exceeded {PATH_MAX} char-
                        acters.
 
     [ENOENT]           A prefix component of the path name does not exist.
 
     [ELOOP]            Too many symbolic links were encountered in translat-
                        ing the pathname.
 
     [EIO]              An I/O error occurred while making the directory entry
                        or allocating the inode.
 
     [EROFS]            The name would reside on a read-only file system.
 
     [EISDIR]           An empty pathname was specified.
 
SEE ALSO
     connect(2), getsockname(2), listen(2), socket(2)
 
HISTORY
     The bind() function call appeared in 4.2BSD.
 
BSD                            February 15, 1999                           BSD
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1	28	unneback	`<!-- Copyright (C) 2003 Red Hat, Inc. -->`
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85			`NAME="NET-COMMON-TCPIP-MANPAGES-BIND">bind</H1`
86			`><TABLE`
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94			`>BIND(2) System Calls Manual BIND(2)`
95
96			`NAME`
97			`bind - bind a name to a socket`
98
99			`SYNOPSIS`
100			`#include <sys/types.h>`
101			`#include <sys/socket.h>`
102
103			`int`
104			`bind(int s, const struct sockaddr *name, socklen_t namelen);`
105
106			`DESCRIPTION`
107			`bind() assigns a name to an unnamed socket. When a socket is created`
108			`with socket(2) it exists in a name space (address family) but has no name`
109			`assigned. bind() requests that name be assigned to the socket.`
110
111			`NOTES`
112			`Binding a name in the UNIX domain creates a socket in the file system`
113			`that must be deleted by the caller when it is no longer needed (using`
114			`unlink(2)).`
115
116			`The rules used in name binding vary between communication domains. Con-`
117			`sult the manual entries in section 4 for detailed information.`
118
119			`RETURN VALUES`
120			`If the bind is successful, a 0 value is returned. A return value of -1`
121			`indicates an error, which is further specified in the global errno.`
122
123			`ERRORS`
124			`The bind() call will fail if:`
125
126			`[EBADF] S is not a valid descriptor.`
127
128			`[ENOTSOCK] S is not a socket.`
129
130			`[EADDRNOTAVAIL] The specified address is not available from the local`
131			`machine.`
132
133			`[EADDRINUSE] The specified address is already in use.`
134
135			`[EINVAL] The socket is already bound to an address.`
136
137			`[EINVAL] The family of the socket and that requested in`
138			`name->sa_family are not equivalent.`
139
140			`[EACCES] The requested address is protected, and the current`
141			`user has inadequate permission to access it.`
142
143			`[EFAULT] The name parameter is not in a valid part of the user`
144			`address space.`
145
146			`The following errors are specific to binding names in the UNIX domain.`
147
148			`[ENOTDIR] A component of the path prefix is not a directory.`
149
150			`[ENAMETOOLONG] A component of a pathname exceeded {NAME_MAX} charac-`
151			`ters, or an entire path name exceeded {PATH_MAX} char-`
152			`acters.`
153
154			`[ENOENT] A prefix component of the path name does not exist.`
155
156			`[ELOOP] Too many symbolic links were encountered in translat-`
157			`ing the pathname.`
158
159			`[EIO] An I/O error occurred while making the directory entry`
160			`or allocating the inode.`
161
162			`[EROFS] The name would reside on a read-only file system.`
163
164			`[EISDIR] An empty pathname was specified.`
165
166			`SEE ALSO`
167			`connect(2), getsockname(2), listen(2), socket(2)`
168
169			`HISTORY`
170			`The bind() function call appeared in 4.2BSD.`
171
172			`BSD February 15, 1999 BSD`
173			`</PRE`
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