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bindresvport(3)
NAME
  bindresvport - Bind a socket to a privileged IP port

SYNOPSIS
  #include <sys/types.h>
  #include <netinet/in.h>
  #include <unistd.h>

  int bindresvport(
	  int sd,
	  struct sockaddr_in *sin );

DESCRIPTION
  The bindresvport() function is used to bind a socket descriptor to a
  privileged IP port, that is, a port number in the range 0-1023. The routine
  returns 0 if it is successful, otherwise -1 is returned and errno set to
  reflect the cause of the error. This routine differs with rresvport() (see
  rcmd(3)) in that this works for any IP socket; whereas rresvport() only
  works for TCP.

  Only root can bind to a privileged port; this call will fail for any other
  users.

SEE ALSO
  Functions: rcmd(3)

Index for Section 3

Alphabetical listing for B

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