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#include <common.h>
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int main(int argc, char **argv)
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{
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if (argc < 2)
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errx(-1, "usage: %s <file> [<file>...]", argv[0]);
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FILE *fout = fdopen(1, "w");
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if (!fout)
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err(-1, "fdopen");
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int i;
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for (i = 1; i < argc; i++) {
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char *fn = argv[i];
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FILE *f = fopen(fn, "r");
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if (!f)
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err(-1, "fopen");
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char buf;
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size_t ret;
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int nl = 0;
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while ((ret = fread(&buf, 1, 1, f)) == 1) {
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if (fwrite(&buf, 1, 1, fout) != 1)
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err(-1, "fwrite");
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// 24 lines at a time
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if (buf == '\n')
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nl++;
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if (nl == 24) {
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if (read(0, &buf, 1) != 1)
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err(-1, "read stdin");
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nl = 0;
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}
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}
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if (ferror(f))
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err(-1, "fread");
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fclose(f);
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}
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return 0;
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}
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