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Fix 'send-string-to-terminal' writing very long strings

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* src/dispnew.c (Fsend_string_to_terminal): Prevent partial writes
by blocking SIGIO while 'fwrite' runs.  (Bug#44320)
This commit is contained in:
Eli Zaretskii 2020-11-07 11:19:44 +02:00
parent 9da0f4026c
commit d4242177da
1 changed files with 4 additions and 0 deletions
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4
src/dispnew.c
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@ -5904,8 +5904,12 @@ when TERMINAL is nil. */)
}
out = tty->output;
}
/* STRING might be very long, in which case fwrite could be
interrupted by SIGIO. So we temporarily block SIGIO. */
unrequest_sigio ();
fwrite (SDATA (string), 1, SBYTES (string), out);
fflush (out);
request_sigio ();
unblock_input ();
return Qnil;
}