The fourth arg of read is wrong. It should be 0 or simply omitted.

If you're going to read one character at a time, getc would be clearer. But I recommend reading all available data instead of one character at a time. You can do that using sysread since it returns all available data (up to the specified limit) as soon as any data is available.

In reply to Re^4: Nested line buffered output by ikegami
in thread Nested line buffered output by Anonymous Monk

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