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BINDRESVPORT

Section: C Library Functions (3)
Updated: 1987-11-22
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NAME

bindresvport - bind a socket to a privileged IP port

SYNOPSIS

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

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

DESCRIPTION

bindresvport() 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.

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

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