Sanitize input_interrupt output

[external/binutils.git] / gdb / gdbserver / remote-utils.c

diff --git a/gdb/gdbserver/remote-utils.c b/gdb/gdbserver/remote-utils.c
index 373fc15..bc54518 100644 (file)
--- a/gdb/gdbserver/remote-utils.c
+++ b/gdb/gdbserver/remote-utils.c
@@ -23,6 +23,7 @@
 #include "tdesc.h"
 #include "dll.h"
 #include "rsp-low.h"
+#include <ctype.h>
 #if HAVE_SYS_IOCTL_H
 #include <sys/ioctl.h>
 #endif
@@ -741,10 +742,18 @@ input_interrupt (int unused)
 
       cc = read_prim (&c, 1);
 
-      if (cc != 1 || c != '\003' || current_thread == NULL)
+      if (cc == 0)
        {
-         fprintf (stderr, "input_interrupt, count = %d c = %d ('%c')\n",
-                  cc, c, c);
+         fprintf (stderr, "client connection closed\n");
+         return;
+       }
+      else if (cc != 1 || c != '\003' || current_thread == NULL)
+       {
+         fprintf (stderr, "input_interrupt, count = %d c = %d ", cc, c);
+         if (isprint (c))
+           fprintf (stderr, "('%c')\n", c);
+         else
+           fprintf (stderr, "('\\x%02x')\n", c & 0xff);
          return;
        }