233aa5c2d1
getaddrinfo can give us a list of addresses, but we only try to connect to the first one. If that fails we never proceed to the next one. This is common on desktop setups that often have ipv6 configured but not actually working. To fix this make inet_connect_nonblocking retry connection with a different address. callers on inet_nonblocking_connect register a callback function that will be called when connect opertion completes, in case of failure the fd will have a negative value Signed-off-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/* headers to use the BSD sockets */
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#ifndef QEMU_SOCKET_H
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#define QEMU_SOCKET_H
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#ifdef _WIN32
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#include <windows.h>
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#define socket_error() WSAGetLastError()
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int inet_aton(const char *cp, struct in_addr *ia);
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#else
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <sys/un.h>
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#define socket_error() errno
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#define closesocket(s) close(s)
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#endif /* !_WIN32 */
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#include "qemu-option.h"
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#include "error.h"
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#include "qerror.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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void socket_set_block(int fd);
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void socket_set_nonblock(int fd);
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int send_all(int fd, const void *buf, int len1);
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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, void *opaque);
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int inet_listen_opts(QemuOpts *opts, int port_offset, Error **errp);
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int inet_listen(const char *str, char *ostr, int olen,
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int socktype, int port_offset, Error **errp);
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int inet_connect_opts(QemuOpts *opts, Error **errp,
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NonBlockingConnectHandler *callback, void *opaque);
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int inet_connect(const char *str, Error **errp);
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int inet_nonblocking_connect(const char *str,
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NonBlockingConnectHandler *callback,
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void *opaque, Error **errp);
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int inet_dgram_opts(QemuOpts *opts);
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const char *inet_strfamily(int family);
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int unix_listen_opts(QemuOpts *opts);
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int unix_listen(const char *path, char *ostr, int olen);
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int unix_connect_opts(QemuOpts *opts);
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int unix_connect(const char *path);
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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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#endif /* QEMU_SOCKET_H */
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