Disable terminal flow control

This opens up C-o, C-q and C-s for key bindings without C-v.

3 files changed, 13 insertions, 0 deletions

diff --git a/chat.h b/chat.h
index b07aa42..afb32ef 100644
--- a/chat.h
+++ b/chat.h
@@ -145,6 +145,7 @@ enum TermEvent {
 	TermPasteEnd,
 };
 void termInit(void);
+void termNoFlow(void);
 void termTitle(const char *title);
 void termMode(enum TermMode mode, bool set);
 enum TermEvent termEvent(char ch);
diff --git a/term.c b/term.c
index 75380ea..fea68ad 100644
--- a/term.c
+++ b/term.c
@@ -18,6 +18,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <termios.h>
+#include <unistd.h>
 
 #include "chat.h"
 
@@ -28,6 +30,15 @@ void termInit(void) {
 	xterm = term && !strncmp(term, "xterm", 5);
 }
 
+void termNoFlow(void) {
+	struct termios attr;
+	int error = tcgetattr(STDIN_FILENO, &attr);
+	if (error) return;
+	attr.c_iflag &= ~IXON;
+	attr.c_cc[VDISCARD] = _POSIX_VDISABLE;
+	tcsetattr(STDIN_FILENO, TCSANOW, &attr);
+}
+
 void termTitle(const char *title) {
 	if (!xterm) return;
 	printf("\33]0;%s\33\\", title);
diff --git a/ui.c b/ui.c
index 9a83bfc..4db7e02 100644
--- a/ui.c
+++ b/ui.c
@@ -189,6 +189,7 @@ void uiInit(void) {
 	cbreak();
 	noecho();
 	termInit();
+	termNoFlow();
 	colorInit();
 	ui.status = newwin(1, COLS, 0, 0);
 	ui.input = newpad(1, 512);