diff options
Diffstat (limited to 'crypto/openssl/doc/crypto/BIO_s_accept.pod')
-rw-r--r-- | crypto/openssl/doc/crypto/BIO_s_accept.pod | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/crypto/openssl/doc/crypto/BIO_s_accept.pod b/crypto/openssl/doc/crypto/BIO_s_accept.pod index c49da7f..7b63e46 100644 --- a/crypto/openssl/doc/crypto/BIO_s_accept.pod +++ b/crypto/openssl/doc/crypto/BIO_s_accept.pod @@ -2,7 +2,7 @@ =head1 NAME -BIO_s_accept, BIO_set_nbio, BIO_set_accept_port, BIO_get_accept_port, +BIO_s_accept, BIO_set_accept_port, BIO_get_accept_port, BIO_set_nbio_accept, BIO_set_accept_bios, BIO_set_bind_mode, BIO_get_bind_mode, BIO_do_accept - accept BIO @@ -10,31 +10,31 @@ BIO_get_bind_mode, BIO_do_accept - accept BIO #include <openssl/bio.h> - BIO_METHOD * BIO_s_accept(void); + BIO_METHOD *BIO_s_accept(void); - #define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name) - #define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0) + long BIO_set_accept_port(BIO *b, char *name); + char *BIO_get_accept_port(BIO *b); BIO *BIO_new_accept(char *host_port); - #define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?"a":NULL) - #define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio) + long BIO_set_nbio_accept(BIO *b, int n); + long BIO_set_accept_bios(BIO *b, char *bio); - #define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL) - #define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL) + long BIO_set_bind_mode(BIO *b, long mode); + long BIO_get_bind_mode(BIO *b, long dummy); #define BIO_BIND_NORMAL 0 #define BIO_BIND_REUSEADDR_IF_UNUSED 1 #define BIO_BIND_REUSEADDR 2 - #define BIO_do_accept(b) BIO_do_handshake(b) + int BIO_do_accept(BIO *b); =head1 DESCRIPTION BIO_s_accept() returns the accept BIO method. This is a wrapper round the platform's TCP/IP socket accept routines. -Using accept BIOs TCP/IP connections can be accepted and data +Using accept BIOs, TCP/IP connections can be accepted and data transferred using only BIO routines. In this way any platform specific operations are hidden by the BIO abstraction. @@ -92,7 +92,7 @@ BIO_do_accept() serves two functions. When it is first called, after the accept BIO has been setup, it will attempt to create the accept socket and bind an address to it. Second and subsequent calls to BIO_do_accept() will await an incoming -connection. +connection, or request a retry in non blocking mode. =head1 NOTES @@ -130,6 +130,17 @@ however because the accept BIO will still accept additional incoming connections. This can be resolved by using BIO_pop() (see above) and freeing up the accept BIO after the initial connection. +If the underlying accept socket is non-blocking and BIO_do_accept() is +called to await an incoming connection it is possible for +BIO_should_io_special() with the reason BIO_RR_ACCEPT. If this happens +then it is an indication that an accept attempt would block: the application +should take appropriate action to wait until the underlying socket has +accepted a connection and retry the call. + +BIO_set_accept_port(), BIO_get_accept_port(), BIO_set_nbio_accept(), +BIO_set_accept_bios(), BIO_set_bind_mode(), BIO_get_bind_mode() and +BIO_do_accept() are macros. + =head1 RETURN VALUES TBA |