From 8a04b833b6fa929b7e86fcdbef6304e8f4c55dcc Mon Sep 17 00:00:00 2001
From: toni <matzeton@googlemail.com>
Date: Wed, 30 Nov 2016 18:39:07 +0100
Subject: dummyshell

---
 dummyshell.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 dummyshell.c

(limited to 'dummyshell.c')

diff --git a/dummyshell.c b/dummyshell.c
new file mode 100644
index 0000000..177423a
--- /dev/null
+++ b/dummyshell.c
@@ -0,0 +1,66 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <termios.h>
+#include <fcntl.h>
+#include <time.h>
+
+
+static const char txtheader[] =
+  "**************\n"
+  "* dummyshell *\n"
+  "**************\n";
+
+
+int main(int argc, char** argv)
+{
+  struct timeval tv;
+  tv.tv_sec = 1;
+  tv.tv_usec = 0;
+
+  int flags = fcntl(STDIN_FILENO, F_GETFL, 0);
+  fcntl(STDIN_FILENO, F_SETFL, flags | O_NONBLOCK);
+
+  static struct termios oldt, newt;
+  tcgetattr(STDIN_FILENO, &oldt);
+  newt = oldt;
+  newt.c_lflag &= ~(ICANON | ECHO);
+  tcsetattr(STDIN_FILENO, TCSANOW, &newt);
+
+  printf("%s\n", txtheader);
+  fd_set fds;
+  time_t start = time(NULL);
+  time_t cur;
+  while (1) {
+    cur = time(NULL);
+    double diff = difftime(cur, start);
+    printf("\r( %0.fs ) [PRESS ANY KEY TO QUIT] ", diff);
+    fflush(stdout);
+    fflush(stdin);
+    FD_ZERO(&fds);
+    FD_SET(STDIN_FILENO, &fds);
+    int ret = select(FD_SETSIZE, &fds, NULL, NULL, &tv);
+    if (ret == 0) {
+      tv.tv_sec = 1;
+      tv.tv_usec = 0;
+    } else {
+      printf("quit in 3 .. ");
+      fflush(stdout);
+      sleep(1);
+      printf("2 .. ");
+      fflush(stdout);
+      sleep(1);
+      printf("1 .. ");
+      fflush(stdout);
+      sleep(1);
+      printf("\n");
+      break;
+    }
+    if (FD_ISSET(STDIN_FILENO,&fds)) break;
+  }
+  while (getchar() != EOF) {}
+
+  tcsetattr( STDIN_FILENO, TCSANOW, &oldt);
+
+  return 0;
+}
-- 
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