git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@13863 ec53bebd-3082-4978-b11e-865c3cabbd6b
		
			
				
	
	
		
			96 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			96 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Copyright (c) 1997 - 2004 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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#include "store-int.h"
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RCSID("$Id$");
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typedef struct fd_storage {
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    int fd;
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} fd_storage;
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#define FD(S) (((fd_storage*)(S)->data)->fd)
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static ssize_t
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fd_fetch(krb5_storage * sp, void *data, size_t size)
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{
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    return net_read(FD(sp), data, size);
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}
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static ssize_t
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fd_store(krb5_storage * sp, const void *data, size_t size)
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{
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    return net_write(FD(sp), data, size);
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}
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static off_t
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fd_seek(krb5_storage * sp, off_t offset, int whence)
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{
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    return lseek(FD(sp), offset, whence);
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}
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static void
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fd_free(krb5_storage * sp)
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{
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    close(FD(sp));
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}
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krb5_storage * KRB5_LIB_FUNCTION
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krb5_storage_from_fd(int fd)
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{
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    krb5_storage *sp;
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    fd = dup(fd);
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    if (fd < 0)
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	return NULL;
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    sp = malloc(sizeof(krb5_storage));
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    if (sp == NULL)
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	return NULL;
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    sp->data = malloc(sizeof(fd_storage));
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    if (sp->data == NULL) {
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	free(sp);
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	return NULL;
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    }
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    sp->flags = 0;
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    sp->eof_code = HEIM_ERR_EOF;
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    FD(sp) = fd;
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    sp->fetch = fd_fetch;
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    sp->store = fd_store;
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    sp->seek = fd_seek;
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    sp->free = fd_free;
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    return sp;
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}
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