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commit d1fb8337a5ce388866d55d4b11e821952de188a7
parent 73228dbb9489e9f9a8bb6ba41f83bc6430cd8d6a
Author: Andrew Mass <amass1212@gmail.com>
Date:   Sat, 17 May 2025 15:53:56 +0100

[st][patches][paste_controls] Added patch.

Diffstat:
A
st.suckless.org/patches/paste_controls/index.md
 | 
18
++++++++++++++++++
A
st.suckless.org/patches/paste_controls/st-paste_controls-0.9.2.diff
 | 
40
++++++++++++++++++++++++++++++++++++++++

2 files changed, 58 insertions(+), 0 deletions(-)
diff --git a/st.suckless.org/patches/paste_controls/index.md b/st.suckless.org/patches/paste_controls/index.md
@@ -0,0 +1,18 @@
+paste\_controls
+===============
+
+Description
+-----------
+Replaces most [C0 control codes](https://www.ascii-code.com/characters/control-characters)
+with spaces when pasting, except for HT and CR.
+
+This can add some security when pasting untrusted buffers, for example
+[commands from a browser](https://thejh.net/misc/website-terminal-copy-paste).
+
+Download
+--------
+* [st-paste\_controls-0.9.2.diff](st-paste_controls-0.9.2.diff)
+
+Author
+------
+* Andrew Mass - <amass1212@gmail.com>
diff --git a/st.suckless.org/patches/paste_controls/st-paste_controls-0.9.2.diff b/st.suckless.org/patches/paste_controls/st-paste_controls-0.9.2.diff
@@ -0,0 +1,40 @@
+diff --git a/x.c b/x.c
+index bd23686..254d3d0 100644
+--- a/x.c
++++ b/x.c
+@@ -580,11 +580,33 @@ selnotify(XEvent *e)
+ 		 * copy and pasting. When receiving some selection data,
+ 		 * replace all '\n' with '\r'.
+ 		 * FIXME: Fix the computer world.
++		 *
++		 * Also, replace most C0 control codes with spaces, except for
++		 * HT and CR. Note that we are not replacing C1 control codes
++		 * (0x80 to 0x9F), as these are possibly valid UTF-8
++		 * continuation bytes.
+ 		 */
+ 		repl = data;
+ 		last = data + nitems * format / 8;
+-		while ((repl = memchr(repl, '\n', last - repl))) {
+-			*repl++ = '\r';
++		while (repl != last) {
++			if (*repl <= 0x1f) {
++				switch (*repl) {
++				case 0x09: /* HT \t */
++				case 0x0D: /* CR \r */
++					repl++;
++					break;
++				case 0x0a: /* LF \n */
++					*repl++ = '\r';
++					break;
++				default:
++					*repl++ = ' ';
++					break;
++				};
++			} else if (*repl == 0x7f) { /* DEL */
++				*repl++ = ' ';
++			} else {
++				repl++;
++			}
+ 		}
+ 
+ 		if (IS_SET(MODE_BRCKTPASTE) && ofs == 0)