| 1 | /* |
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| 2 | (C) Copyright IBM Corp. 2005, 2006 |
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| 3 | |
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| 4 | All rights reserved. |
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| 5 | |
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| 6 | Redistribution and use in source and binary forms, with or without |
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| 7 | modification, are permitted provided that the following conditions are met: |
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| 8 | |
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| 9 | * Redistributions of source code must retain the above copyright notice, |
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| 10 | this list of conditions and the following disclaimer. |
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| 11 | * Redistributions in binary form must reproduce the above copyright |
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| 12 | notice, this list of conditions and the following disclaimer in the |
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| 13 | documentation and/or other materials provided with the distribution. |
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| 14 | * Neither the name of IBM nor the names of its contributors may be |
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| 15 | used to endorse or promote products derived from this software without |
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| 16 | specific prior written permission. |
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| 17 | |
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| 18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 19 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 20 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 21 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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| 22 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 23 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 24 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 25 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 26 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 27 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 28 | POSSIBILITY OF SUCH DAMAGE. |
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| 29 | |
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| 30 | Author: Andreas Neukoetter (ti95neuk@de.ibm.com) |
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| 31 | */ |
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| 32 | |
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| 33 | #include <unistd.h> |
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| 34 | #include "jsre.h" |
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| 35 | |
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| 36 | #define JSRE_SEEK_SET 0 |
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| 37 | #define JSRE_SEEK_CUR 1 |
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| 38 | #define JSRE_SEEK_END 2 |
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| 39 | |
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| 40 | typedef struct |
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| 41 | { |
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| 42 | unsigned int file; |
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| 43 | unsigned int pad0[3]; |
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| 44 | unsigned int offset; |
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| 45 | unsigned int pad1[3]; |
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| 46 | unsigned int whence; |
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| 47 | unsigned int pad2[3]; |
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| 48 | } syscall_lseek_t; |
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| 49 | |
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| 50 | off_t |
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| 51 | lseek (int file, off_t offset, int whence) |
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| 52 | { |
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| 53 | syscall_lseek_t sys; |
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| 54 | |
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| 55 | sys.file = file; |
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| 56 | sys.offset = offset; |
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| 57 | |
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| 58 | switch( whence ){ |
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| 59 | case SEEK_SET: |
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| 60 | sys.whence = JSRE_SEEK_SET; |
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| 61 | break; |
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| 62 | case SEEK_CUR: |
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| 63 | sys.whence = JSRE_SEEK_CUR; |
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| 64 | break; |
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| 65 | case SEEK_END: |
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| 66 | sys.whence = JSRE_SEEK_END; |
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| 67 | break; |
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| 68 | } |
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| 69 | |
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| 70 | return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_LSEEK, &sys); |
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| 71 | } |
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