long BIO_set_bind_mode(BIO *b, long mode);
long BIO_get_bind_mode(BIO *b);
- #define BIO_BIND_NORMAL 0
- #define BIO_BIND_REUSEADDR_IF_UNUSED 1
- #define BIO_BIND_REUSEADDR 2
-
int BIO_do_accept(BIO *b);
=head1 DESCRIPTION
be automatically freed when the accept BIO is freed.
BIO_set_bind_mode() and BIO_get_bind_mode() set and retrieve
-the current bind mode. If BIO_BIND_NORMAL (the default) is set
+the current bind mode. If B<BIO_BIND_NORMAL> (the default) is set
then another socket cannot be bound to the same port. If
-BIO_BIND_REUSEADDR is set then other sockets can bind to the
-same port. If BIO_BIND_REUSEADDR_IF_UNUSED is set then and
+B<BIO_BIND_REUSEADDR> is set then other sockets can bind to the
+same port. If B<BIO_BIND_REUSEADDR_IF_UNUSED> is set then and
attempt is first made to use BIO_BIN_NORMAL, if this fails
and the port is not in use then a second attempt is made
-using BIO_BIND_REUSEADDR.
+using B<BIO_BIND_REUSEADDR>.
BIO_do_accept() serves two functions. When it is first
called, after the accept BIO has been setup, it will attempt
BIO *abio, *cbio, *cbio2;
- abio = BIO_new_accept("4444");
-
/* First call to BIO_accept() sets up accept BIO */
- if(BIO_do_accept(abio) <= 0) {
- fprintf(stderr, "Error setting up accept\n");
- ERR_print_errors_fp(stderr);
- exit(0);
+ abio = BIO_new_accept("4444");
+ if (BIO_do_accept(abio) <= 0) {
+ fprintf(stderr, "Error setting up accept\n");
+ ERR_print_errors_fp(stderr);
+ exit(1);
}
/* Wait for incoming connection */
- if(BIO_do_accept(abio) <= 0) {
- fprintf(stderr, "Error accepting connection\n");
- ERR_print_errors_fp(stderr);
- exit(0);
+ if (BIO_do_accept(abio) <= 0) {
+ fprintf(stderr, "Error accepting connection\n");
+ ERR_print_errors_fp(stderr);
+ exit(1);
}
fprintf(stderr, "Connection 1 established\n");
+
/* Retrieve BIO for connection */
cbio = BIO_pop(abio);
BIO_puts(cbio, "Connection 1: Sending out Data on initial connection\n");
fprintf(stderr, "Sent out data on connection 1\n");
+
/* Wait for another connection */
- if(BIO_do_accept(abio) <= 0) {
- fprintf(stderr, "Error accepting connection\n");
- ERR_print_errors_fp(stderr);
- exit(0);
+ if (BIO_do_accept(abio) <= 0) {
+ fprintf(stderr, "Error accepting connection\n");
+ ERR_print_errors_fp(stderr);
+ exit(1);
}
fprintf(stderr, "Connection 2 established\n");
+
/* Close accept BIO to refuse further connections */
cbio2 = BIO_pop(abio);
BIO_free(abio);
fprintf(stderr, "Sent out data on connection 2\n");
BIO_puts(cbio, "Connection 1: Second connection established\n");
+
/* Close the two established connections */
BIO_free(cbio);
BIO_free(cbio2);
-=head1 SEE ALSO
-
-TBA
-
-=cut
-
=head1 COPYRIGHT
Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.