mirror of
https://github.com/encounter/newlib.git
synced 2026-03-30 11:31:09 -07:00
Dave Murphy
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
#include "config.h"
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#include <_ansi.h>
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#include <_syslist.h>
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#include <errno.h>
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#include <sys/iosupport.h>
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#include <sys/iosupport.h>
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//---------------------------------------------------------------------------------
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#ifdef REENTRANT_SYSCALLS_PROVIDED
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//---------------------------------------------------------------------------------
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_off_t _lseek_r(struct _reent * r, int fileDesc, _off_t pos, int dir) {
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//---------------------------------------------------------------------------------
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#else
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//---------------------------------------------------------------------------------
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_off_t _lseek(int fileDesc, _off_t pos, int dir) {
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//---------------------------------------------------------------------------------
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struct _reent *r = _REENT;
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//---------------------------------------------------------------------------------
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#endif
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//---------------------------------------------------------------------------------
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_off_t ret = -1;
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unsigned int dev = 0;
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__handle * handle;
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if(fileDesc!=-1) {
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handle = __get_handle(fileDesc);
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if ( NULL == handle ) return ret;
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dev = handle->device;
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if(devoptab_list[dev]->seek_r) {
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r->deviceData = devoptab_list[dev]->deviceData;
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ret = devoptab_list[dev]->seek_r( r, handle->fileStruct, pos, dir);
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} else
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r->_errno=ENOSYS;
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}
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return ret;
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}
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