25 lines
425 B
C
25 lines
425 B
C
#include <stdio.h>
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long ftell(iop)
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FILE *iop;
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{
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long result;
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long lseek();
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int adjust = 0;
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if ( io_testflag(iop,IO_READMODE) )
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adjust -= iop->_count;
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else if ( io_testflag(iop,IO_WRITEMODE) && iop->_buf && !io_testflag(iop,IO_UNBUFF))
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adjust = iop->_ptr - iop->_buf;
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else
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return(-1);
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result = lseek(fileno(iop), 0L, 1);
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if ( result < 0 )
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return ( result );
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result += (long) adjust;
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return(result);
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}
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