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io vnc sockets: Clean up SocketAddressKind switches

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We have quite a few switches over SocketAddressKind.  Some have case
labels for all enumeration values, others rely on a default label.
Some abort when the value isn't a valid SocketAddressKind, others
report an error then.

Unify as follows.  Always provide case labels for all enumeration
values, to clarify intent.  Abort when the value isn't a valid
SocketAddressKind, because the program state is messed up then.

Improve a few error messages while there.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1490895797-29094-4-git-send-email-armbru@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Markus Armbruster 2017-03-30 19:43:11 +02:00 committed by Max Reitz
parent d2e49aad72
commit a6c76285f2
3 changed files with 18 additions and 11 deletions
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7
io/dns-resolver.c
View File

@ -164,9 +164,12 @@ int qio_dns_resolver_lookup_sync(QIODNSResolver *resolver,
addrs,
errp);
default:
error_setg(errp, "Unknown socket address kind");
case SOCKET_ADDRESS_KIND_FD:
error_setg(errp, "Unsupported socket address type 'fd'");
return -1;
default:
abort();
}
}

18
ui/vnc.c
View File

@ -129,10 +129,13 @@ static void vnc_init_basic_info(SocketAddress *addr,
info->family = NETWORK_ADDRESS_FAMILY_UNIX;
break;
default:
error_setg(errp, "Unsupported socket kind %d",
addr->type);
case SOCKET_ADDRESS_KIND_VSOCK:
case SOCKET_ADDRESS_KIND_FD:
error_setg(errp, "Unsupported socket address type %s",
SocketAddressKind_lookup[addr->type]);
break;
default:
abort();
}
return;
@ -411,10 +414,13 @@ VncInfo *qmp_query_vnc(Error **errp)
info->family = NETWORK_ADDRESS_FAMILY_UNIX;
break;
default:
error_setg(errp, "Unsupported socket kind %d",
addr->type);
case SOCKET_ADDRESS_KIND_VSOCK:
case SOCKET_ADDRESS_KIND_FD:
error_setg(errp, "Unsupported socket address type %s",
SocketAddressKind_lookup[addr->type]);
goto out_error;
default:
abort();
}
info->has_host = true;

4
util/qemu-sockets.c
View File

@ -1337,9 +1337,7 @@ char *socket_address_to_string(struct SocketAddress *addr, Error **errp)
break;
default:
error_setg(errp, "socket family %d unsupported",
addr->type);
return NULL;
abort();
}
return buf;
}