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Annotation of coherent/b/lib/libc/stdio/_fpseek.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * libc/stdio/_fpseek.c
        !             3:  * ANSI-compliant C standard i/o library internals.
        !             4:  * _fpseek()
        !             5:  * Align file seek address with current pointer in buffer.
        !             6:  */
        !             7: 
        !             8: #include <stdio.h>
        !             9: 
        !            10: int
        !            11: _fpseek(fp) register FILE *fp;
        !            12: {
        !            13:        register _FILE2 *f2p;
        !            14: 
        !            15:        f2p = fp->_f2p;
        !            16:        if (fp->_ff2 & _FUNGOT)
        !            17:                (*f2p->_gt)(fp);        /* Discard ungotten character */
        !            18:        if (f2p->_dp <= fp->_cp)
        !            19:                return fflush(fp);      /* Flush buffered output */
        !            20:        if (lseek(fileno(fp), (long)(fp->_cp-f2p->_dp), SEEK_CUR) == -1L)
        !            21:                return EOF;             /* Seek back over unread input */
        !            22:        f2p->_dp = fp->_cp;
        !            23:        fp->_cc = 0;
        !            24:        return 0;
        !            25: }
        !            26: 
        !            27: /* end of libc/stdio/_fpseek.c */

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