39f6fc00f8
When a socket and a file descriptor aren't interchangeable, these functions should be able to determine whether it has received one or the other and act accordingly. This assumes that a fd can be cast into a SOCKET.
60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*
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* Copyright (c) 1997, 1998, 2002 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb5_locl.h"
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KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
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krb5_net_read (krb5_context context,
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void *p_fd,
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void *buf,
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size_t len)
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{
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SOCKET fd = *((SOCKET *)p_fd);
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#ifdef SOCKET_IS_NOT_AN_FD
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#ifdef _MSC_VER
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{
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HANDLE h = _get_osfhandle(fd);
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if (h != INVALID_HANDLE_VALUE) {
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return net_read (fd, buf, len);
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}
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}
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#else
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#error Don't know how to handle socket that may be an fd
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#endif
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#endif
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return net_read_s (fd, buf, len);
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}
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