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Introduce lim in all ttywrite() checks.

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This commit is contained in:
Christoph Lohmann 2015-11-06 20:46:23 +01:00
parent 9f6d8845df
commit 00873e65ee
1 changed files with 4 additions and 4 deletions
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8
st.c
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@ -1522,11 +1522,11 @@ ttywrite(const char *s, size_t n)
lim = ttyread();
if (FD_ISSET(cmdfd, &wfd)) {
/*
* Only write 256 bytes at maximum. This seems to be a
* reasonable value for a serial line. Bigger values
* might clog the I/O.
* Only write the bytes written by ttywrite() or the
* default of 256. This seems to be a reasonable value
* for a serial line. Bigger values might clog the I/O.
*/
if ((r = write(cmdfd, s, (n < 256)? n : 256)) < 0)
if ((r = write(cmdfd, s, (n < lim)? n : lim)) < 0)
goto write_error;
if (r < n) {
/*