216411b839
SocketAddress is a simple union, and simple unions are awkward: they have their variant members wrapped in a "data" object on the wire, and require additional indirections in C. I intend to limit its use to existing external interfaces. New ones should use SocketAddressFlat. I further intend to convert all internal interfaces to SocketAddressFlat. This helper should go away then. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-id: 1490895797-29094-8-git-send-email-armbru@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
134 lines
4.2 KiB
C
134 lines
4.2 KiB
C
/* headers to use the BSD sockets */
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#ifndef QEMU_SOCKETS_H
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#define QEMU_SOCKETS_H
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#ifdef _WIN32
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int inet_aton(const char *cp, struct in_addr *ia);
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#endif /* !_WIN32 */
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#include "qapi-types.h"
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/* misc helpers */
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int qemu_socket(int domain, int type, int protocol);
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int qemu_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
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int socket_set_cork(int fd, int v);
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int socket_set_nodelay(int fd);
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void qemu_set_block(int fd);
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void qemu_set_nonblock(int fd);
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int socket_set_fast_reuse(int fd);
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#ifdef WIN32
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/* Windows has different names for the same constants with the same values */
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#define SHUT_RD 0
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#define SHUT_WR 1
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#define SHUT_RDWR 2
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#endif
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/* callback function for nonblocking connect
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* valid fd on success, negative error code on failure
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*/
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typedef void NonBlockingConnectHandler(int fd, Error *err, void *opaque);
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int inet_ai_family_from_address(InetSocketAddress *addr,
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Error **errp);
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InetSocketAddress *inet_parse(const char *str, Error **errp);
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int inet_connect(const char *str, Error **errp);
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int inet_connect_saddr(InetSocketAddress *saddr, Error **errp,
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NonBlockingConnectHandler *callback, void *opaque);
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NetworkAddressFamily inet_netfamily(int family);
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int unix_listen(const char *path, char *ostr, int olen, Error **errp);
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int unix_connect(const char *path, Error **errp);
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SocketAddress *socket_parse(const char *str, Error **errp);
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int socket_connect(SocketAddress *addr, Error **errp,
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NonBlockingConnectHandler *callback, void *opaque);
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int socket_listen(SocketAddress *addr, Error **errp);
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void socket_listen_cleanup(int fd, Error **errp);
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int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp);
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/* Old, ipv4 only bits. Don't use for new code. */
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int parse_host_port(struct sockaddr_in *saddr, const char *str);
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int socket_init(void);
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/**
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* socket_sockaddr_to_address:
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* @sa: socket address struct
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* @salen: size of @sa struct
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* @errp: pointer to uninitialized error object
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*
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* Get the string representation of the socket
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* address. A pointer to the allocated address information
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* struct will be returned, which the caller is required to
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* release with a call qapi_free_SocketAddress when no
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* longer required.
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*
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* Returns: the socket address struct, or NULL on error
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*/
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SocketAddress *
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socket_sockaddr_to_address(struct sockaddr_storage *sa,
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socklen_t salen,
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Error **errp);
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/**
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* socket_local_address:
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* @fd: the socket file handle
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* @errp: pointer to uninitialized error object
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*
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* Get the string representation of the local socket
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* address. A pointer to the allocated address information
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* struct will be returned, which the caller is required to
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* release with a call qapi_free_SocketAddress when no
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* longer required.
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*
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* Returns: the socket address struct, or NULL on error
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*/
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SocketAddress *socket_local_address(int fd, Error **errp);
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/**
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* socket_remote_address:
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* @fd: the socket file handle
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* @errp: pointer to uninitialized error object
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*
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* Get the string representation of the remote socket
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* address. A pointer to the allocated address information
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* struct will be returned, which the caller is required to
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* release with a call qapi_free_SocketAddress when no
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* longer required.
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*
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* Returns: the socket address struct, or NULL on error
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*/
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SocketAddress *socket_remote_address(int fd, Error **errp);
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/**
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* socket_address_to_string:
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* @addr: the socket address struct
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* @errp: pointer to uninitialized error object
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*
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* Get the string representation of the socket
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* address. A pointer to the char array containing
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* string format will be returned, the caller is
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* required to release the returned value when no
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* longer required with g_free.
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*
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* Returns: the socket address in string format, or NULL on error
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*/
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char *socket_address_to_string(struct SocketAddress *addr, Error **errp);
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/**
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* socket_address_crumple:
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* @addr_flat: the socket address to crumple
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*
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* Convert SocketAddressFlat to SocketAddress. Caller is responsible
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* for freeing with qapi_free_SocketAddress().
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*
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* Returns: the argument converted to SocketAddress.
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*/
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SocketAddress *socket_address_crumple(SocketAddressFlat *addr_flat);
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#endif /* QEMU_SOCKETS_H */
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