Developer's Daily | Unix by Example |
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bindresvport ? bind a socket to a privileged IP port |
#include <sys/types.h> #include <netinet/in.h> int bindresvport(sd, sin) int sd; struct sockaddr_in ?sin; |
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. |