naskshell

1 files changed, 37 insertions, 0 deletions

diff --git a/src/shell/shell.c b/src/shell/shell.c
new file mode 100644
index 0000000..eff2566
--- /dev/null
+++ b/src/shell/shell.c
@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <termios.h>
+
+
+int main(int argc, char **argv) {
+  struct termios old, new;
+
+  int passfifo_fd = open("/lib/cryptsetup/passfifo", O_WRONLY);
+  if (passfifo_fd < 0) {
+    perror("open");
+    return -1;
+  }
+
+  if ( tcgetattr(0, &old) != 0 )
+    return -1;
+  new = old;
+  new.c_lflag &= ~ECHO;
+
+  if ( tcsetattr(0, TCSANOW, &new) != 0 )
+    return -1;
+
+  printf("Enter a passphrase: ");
+  char *line = calloc(128, sizeof(char));
+  size_t len = 128;
+  ssize_t read = getline(&line, &len, stdin);
+  write(passfifo_fd, line, len);
+  printf("\n");
+
+  if ( tcsetattr(0, TCSANOW, &old) != 0 )
+    return -1;
+
+  return 0;
+}