#include "output.h"

#define WRAPCOL 76

char
printw(FILE *fptr, unsigned char *buf, int bufsize)
{
    static int column;
    int c;

    c = '\n';
    if (column > 0) {
        if (bufsize >= WRAPCOL-column) {
            fwrite(buf, sizeof(*buf), WRAPCOL-column, fptr);
            buf += WRAPCOL-column;
            bufsize -= WRAPCOL-column;
            column = 0;
            fputc('\n', fptr);
        } else {
            fwrite(buf, sizeof(*buf), bufsize, fptr);
            column += bufsize;
            buf += bufsize;
            bufsize -= bufsize;
            c = *(buf+bufsize-1);
        }
    }
    for (; bufsize >= WRAPCOL; bufsize -= WRAPCOL, buf += WRAPCOL) {
        fwrite(buf, sizeof(*buf), WRAPCOL, fptr);
        fputc('\n', fptr);
    }
    if (bufsize > 0) {
        fwrite(buf, sizeof(*buf), bufsize, fptr);
        column += bufsize;
        c = *(buf+bufsize-1);
    }

    return c;
}