cgmnlm

commit 81a48d48ed0129181607129cb4f21823a71cfe32
parent 72a763f208a7f1513d363002d1d62d5e1a15ba24
Author: Ondřej Fiala <temp.xanomes@volny.cz>
Date:   Sat,  5 Feb 2022 12:44:52 +0100

gmnlm: strip control sequences from plaintext rendering

Diffstat:
M
src/gmnlm.c
 | 
5
+++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/src/gmnlm.c b/src/gmnlm.c
@@ -1152,6 +1152,11 @@ display_plaintext(struct browser *browser, struct gemini_response *resp)
 		if (n < 0) {
 			n = 0;
 		}
+		for (int i = 0; i < n; i++) {
+			if (iscntrl(buf[i]) && (buf[i] < '\t' || buf[i] > '\v')) {
+				buf[i] = '.';
+			}
+		}
 		ssize_t w = 0;
 		while (w < (ssize_t)n) {
 			ssize_t x = fwrite(&buf[w], 1, n - w, browser->tty);