From: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date: Fri, 10 Apr 2020 20:25:46 +0000 (+0200)
Subject: ttyread: test for EOF while reading tty
X-Git-Url: https://git.danieliu.xyz/?a=commitdiff_plain;h=e52319cc7d153e4f59b38c4fb4c0556e118d4775;hp=e52319cc7d153e4f59b38c4fb4c0556e118d4775;p=st.git

ttyread: test for EOF while reading tty

When a read operation returns 0 then it means that we arrived to the end of the
file, and new reads will return 0 unless you do some other operation such as
lseek(). This case happens with USB-232 adapters when they are unplugged.
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