From: Christoph Lohmann <20h@r-36.net>
Date: Fri, 6 Nov 2015 19:46:23 +0000 (+0100)
Subject: Introduce lim in all ttywrite() checks.
X-Git-Url: https://git.danieliu.xyz/?a=commitdiff_plain;h=00873e65eed161ee5f8916fbfb25c1a7f7a9b2f8;p=st.git

Introduce lim in all ttywrite() checks.
---

diff --git a/st.c b/st.c
index 900534b..a47f094 100644
--- a/st.c
+++ b/st.c
@@ -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) {
 				/*