Add key to send a break to the serial line

[st.git] / st.c

diff --git a/st.c b/st.c
index d49804b..7804316 100644 (file)
--- a/st.c
+++ b/st.c
@@ -17,6 +17,7 @@
 #include <sys/time.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <termios.h>
 #include <time.h>
 #include <unistd.h>
 #include <libgen.h>
@@ -333,6 +334,7 @@ static void xzoomreset(const Arg *);
 static void printsel(const Arg *);
 static void printscreen(const Arg *) ;
 static void toggleprinter(const Arg *);
+static void sendbreak(const Arg *);
 
 /* Config.h for applying patches and the configuration. */
 #include "config.h"
@@ -2578,6 +2580,13 @@ strreset(void)
        memset(&strescseq, 0, sizeof(strescseq));
 }
 
+void
+sendbreak(const Arg *arg)
+{
+       if (tcsendbreak(cmdfd, 0))
+               perror("Error sending break");
+}
+
 void
 tprinter(char *s, size_t len)
 {
@@ -4294,7 +4303,7 @@ usage(void)
        "          [-i] [-t title] [-T title] [-w windowid] [-e command ...]"
        " [command ...]\n"
        "       st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n"
-       "          [-i] [-t title] [-T title] [-w windowid] [-l line]"
+       "          [-i] [-t title] [-T title] [-w windowid] -l line"
        " [stty_args ...]\n",
        argv0);
 }