72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
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(C) Copyright IBM Corp. 2005, 2006
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All rights reserved.
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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 are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* 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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* Neither the name of IBM nor the names of its contributors may be
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used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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Author: Andreas Neukoetter (ti95neuk@de.ibm.com)
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*/
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#include <unistd.h>
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#include "jsre.h"
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#define JSRE_SEEK_SET 0
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#define JSRE_SEEK_CUR 1
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#define JSRE_SEEK_END 2
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typedef struct
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{
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unsigned int file;
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unsigned int pad0[3];
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unsigned int offset;
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unsigned int pad1[3];
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unsigned int whence;
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unsigned int pad2[3];
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} syscall_lseek_t;
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off_t
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lseek (int file, off_t offset, int whence)
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{
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syscall_lseek_t sys;
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sys.file = file;
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sys.offset = offset;
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switch( whence ){
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case SEEK_SET:
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sys.whence = JSRE_SEEK_SET;
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break;
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case SEEK_CUR:
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sys.whence = JSRE_SEEK_CUR;
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break;
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case SEEK_END:
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sys.whence = JSRE_SEEK_END;
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break;
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}
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return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_LSEEK, &sys);
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}
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