Function get_rnd_text

src/rumors.c:498–526

Gets a random line of text from file 'fname', and returns it. rng is the random number generator to use, and should act like rn2 does. */

/* Gets a random line of text from file 'fname', and returns it.
   rng is the random number generator to use, and should act like rn2 does. */
char *
get_rnd_text(
    const char *fname,
    char *buf,
    int (*rng)(int),
    unsigned padlength)
{
    dlb *fh = dlb_fopen(fname, "r");

    buf[0] = '\0';
    if (fh) {
        long starttxt = 0L;
        char line[BUFSZ];

        /* skip "don't edit" comment */
        (void) dlb_fgets(line, sizeof line, fh);
        /* obtain current file position */
        (void) dlb_fseek(fh, 0L, SEEK_CUR);
        starttxt = dlb_ftell(fh);

        /* get a randomly chosen line; it comes back decrypted and unpadded */
        Strcpy(buf, get_rnd_line(fh, line, (unsigned) sizeof line, rng,
                                 starttxt, 0L, padlength));
        (void) dlb_fclose(fh);
    } else {
        couldnt_open_file(fname);
    }
    return buf;
}

void
outrumor(