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Annotation of 41BSD/libc/stdio/freopen.c, revision 1.1

1.1     ! root        1: #include <stdio.h>
        !             2: 
        !             3: FILE *
        !             4: freopen(file, mode, iop)
        !             5: char *file;
        !             6: register char *mode;
        !             7: register FILE *iop;
        !             8: {
        !             9:        register f;
        !            10: 
        !            11:        fclose(iop);
        !            12:        if (*mode=='w')
        !            13:                f = creat(file, 0666);
        !            14:        else if (*mode=='a') {
        !            15:                if ((f = open(file, 1)) < 0)
        !            16:                        f = creat(file, 0666);
        !            17:                lseek(f, 0L, 2);
        !            18:        } else
        !            19:                f = open(file, 0);
        !            20:        if (f < 0)
        !            21:                return(NULL);
        !            22:        iop->_file = f;
        !            23:        if (*mode != 'r')
        !            24:                iop->_flag |= _IOWRT;
        !            25:        else
        !            26:                iop->_flag |= _IOREAD;
        !            27:        return(iop);
        !            28: }

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