зеркало из https://github.com/github/putty.git
79 строки
1.5 KiB
C
79 строки
1.5 KiB
C
/*
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* A dummy Socket implementation which just holds an error message.
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*/
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#include <stdio.h>
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#include <assert.h>
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#include "tree234.h"
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#include "putty.h"
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#include "network.h"
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typedef struct {
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char *error;
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Plug *plug;
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Socket sock;
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} ErrorSocket;
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static Plug *sk_error_plug(Socket *s, Plug *p)
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{
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ErrorSocket *es = container_of(s, ErrorSocket, sock);
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Plug *ret = es->plug;
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if (p)
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es->plug = p;
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return ret;
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}
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static void sk_error_close(Socket *s)
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{
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ErrorSocket *es = container_of(s, ErrorSocket, sock);
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sfree(es->error);
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sfree(es);
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}
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static const char *sk_error_socket_error(Socket *s)
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{
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ErrorSocket *es = container_of(s, ErrorSocket, sock);
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return es->error;
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}
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static SocketPeerInfo *sk_error_peer_info(Socket *s)
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{
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return NULL;
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}
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static const SocketVtable ErrorSocket_sockvt = {
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sk_error_plug,
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sk_error_close,
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NULL /* write */,
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NULL /* write_oob */,
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NULL /* write_eof */,
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NULL /* flush */,
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NULL /* set_frozen */,
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sk_error_socket_error,
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sk_error_peer_info,
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};
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static Socket *new_error_socket_internal(char *errmsg, Plug *plug)
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{
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ErrorSocket *es = snew(ErrorSocket);
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es->sock.vt = &ErrorSocket_sockvt;
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es->plug = plug;
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es->error = errmsg;
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return &es->sock;
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}
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Socket *new_error_socket_fmt(Plug *plug, const char *fmt, ...)
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{
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va_list ap;
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char *msg;
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va_start(ap, fmt);
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msg = dupvprintf(fmt, ap);
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va_end(ap);
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return new_error_socket_internal(msg, plug);
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}
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