Make scriptreplay set terminal to raw mode

diff --git a/term-utils/scriptreplay.c b/term-utils/scriptreplay.c
index bca1d21b44295ddaacf07ed042767ce01dd6dcc4..19a7d568b41057b04cd5ca832f841ae0ea9d2973 100644 (file)
--- a/term-utils/scriptreplay.c
+++ b/term-utils/scriptreplay.c
@@ -28,6 +28,7 @@
 #include <unistd.h>
 #include <getopt.h>
 #include <sys/time.h>
+#include <termios.h>
 
 #include "c.h"
 #include "xalloc.h"
@@ -120,12 +121,30 @@ static void appendchr(char *buf, size_t bufsz, int c)
                buf[sz] = c;
 }
 
+static int termraw(struct termios *backup)
+{
+       struct termios tattr;
+
+       if (tcgetattr(STDOUT_FILENO, backup) != 0)
+               return -1;
+
+       tattr = *backup;
+       cfmakeraw(&tattr);
+       if (tcsetattr(STDOUT_FILENO, TCSANOW, &tattr) != 0)
+               return -1;
+
+       return 0;
+}
+
 int
 main(int argc, char *argv[])
 {
        static const struct timeval mindelay = { .tv_sec = 0, .tv_usec = 100 };
        struct timeval maxdelay;
 
+       char isterm;
+       struct termios saved;
+
        struct replay_setup *setup = NULL;
        struct replay_step *step = NULL;
        char streams[6] = {0};          /* IOSI - in, out, signal,info */
@@ -286,6 +305,10 @@ main(int argc, char *argv[])
                replay_set_delay_max(setup, &maxdelay);
        replay_set_delay_min(setup, &mindelay);
 
+       isterm = isatty(STDOUT_FILENO);
+       if (isterm && termraw(&saved) != 0)
+               err(EXIT_FAILURE, _("failed to set terminal to raw mode"));
+
        do {
                rc = replay_get_next_step(setup, streams, &step);
                if (rc)
@@ -300,6 +323,9 @@ main(int argc, char *argv[])
                rc = replay_emit_step_data(setup, step, STDOUT_FILENO);
        } while (rc == 0);
 
+       if (isterm)
+               tcsetattr(STDOUT_FILENO, TCSADRAIN, &saved);
+
        if (step && rc < 0)
                err(EXIT_FAILURE, _("%s: log file error"), replay_step_get_filename(step));
        else if (rc < 0)