2004-11-03 13:51:07 +00:00
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.\" @(#)bindresvport.3n 2.2 88/08/02 4.0 RPCSRC; from 1.7 88/03/14 SMI
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.TH BINDRESVPORT 3 1987-11-22
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.SH NAME
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bindresvport \- bind a socket to a privileged IP port
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.SH SYNOPSIS
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.nf
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.B #include <sys/types.h>
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.B #include <netinet/in.h>
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.LP
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.B int bindresvport(sd, sin)
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.B int sd;
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.B struct sockaddr_in \(**sin;
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.fi
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.SH DESCRIPTION
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.LP
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.B bindresvport()
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is used to bind a socket descriptor to a privileged
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.SM IP
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port, that is, a
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port number in the range 0-1023.
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The routine returns 0 if it is successful,
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otherwise \-1 is returned and
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2004-11-10 17:11:31 +00:00
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.I errno
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2004-11-03 13:51:07 +00:00
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set to reflect the cause of the error.
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.LP
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Only root can bind to a privileged port; this call will fail for any
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other users.
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