Import gcrypt public-key cryptography and implement signature checking.

grub-core/lib/libgcrypt/cipher/test-getrusage.c

@@ -0,0 +1,105 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/resource.h>
+
+int
+main (int argc, char **argv)
+{
+  struct rusage buf;
+
+  if (argc > 1)
+    {
+      system (argv[1]);
+
+      if (getrusage (RUSAGE_CHILDREN, &buf ))
+        {
+          perror ("getrusage");
+          return 1;
+        }
+    }
+  else
+    {
+      if (getrusage (RUSAGE_SELF, &buf ))
+        {
+          perror ("getrusage");
+          return 1;
+        }
+    }
+
+  printf ("ru_utime   = %ld.%06ld\n",
+          buf.ru_utime.tv_sec, buf.ru_utime.tv_usec); 
+  printf ("ru_stime   = %ld.%06ld\n",
+          buf.ru_stime.tv_sec, buf.ru_stime.tv_usec);
+  printf ("ru_maxrss  = %ld\n", buf.ru_maxrss   );
+  printf ("ru_ixrss   = %ld\n", buf.ru_ixrss    );
+  printf ("ru_idrss   = %ld\n", buf.ru_idrss    );
+  printf ("ru_isrss   = %ld\n", buf.ru_isrss    );
+  printf ("ru_minflt  = %ld\n", buf.ru_minflt   );
+  printf ("ru_majflt  = %ld\n", buf.ru_majflt   );
+  printf ("ru_nswap   = %ld\n", buf.ru_nswap    );
+  printf ("ru_inblock = %ld\n", buf.ru_inblock  );
+  printf ("ru_oublock = %ld\n", buf.ru_oublock  );
+  printf ("ru_msgsnd  = %ld\n", buf.ru_msgsnd   );
+  printf ("ru_msgrcv  = %ld\n", buf.ru_msgrcv   );
+  printf ("ru_nsignals= %ld\n", buf.ru_nsignals );
+  printf ("ru_nvcsw   = %ld\n", buf.ru_nvcsw    );
+  printf ("ru_nivcsw  = %ld\n", buf.ru_nivcsw   );
+
+  fprintf (stderr, "ru_utime   ru_stime   ru_minflt  ru_nccsw  ru_nivcsw\n");
+  fprintf (stderr, "%ld.%06ld  %ld.%06ld  %5ld       %5ld      %5ld\n");
+
+
+  return 0;
+}
+
+
+/* Codesnippet for debugging in random.c. */
+#if 0
+static void
+collect_rusage_stats (struct rusage *rb)
+{
+  static int idx;
+  static struct rusage buf[100];
+  
+  if (!rb)
+    {
+      int i;
+
+      fprintf (stderr, "ru_utime   ru_stime   ru_minflt  ru_nvcsw  ru_nivcsw\n");
+      for (i=0; i < idx; i++)
+        fprintf (stderr, "%ld.%06ld   %ld.%06ld %5ld       %5ld      %5ld\n",
+                 buf[i].ru_utime.tv_sec, buf[i].ru_utime.tv_usec, 
+                 buf[i].ru_stime.tv_sec, buf[i].ru_stime.tv_usec, 
+                 buf[i].ru_minflt, 
+                 buf[i].ru_nvcsw,
+                 buf[i].ru_nivcsw);
+    }      
+  else if (idx < DIM(buf))
+    {
+      buf[idx++] = *rb;
+    }
+}
+#endif
+/*
+ void
+ _gcry_random_dump_stats()
+ {
+@@ -233,8 +261,11 @@
+                  rndstats.naddbytes, rndstats.addbytes,
+        rndstats.mixkey, rndstats.ngetbytes1, rndstats.getbytes1,
+                    rndstats.ngetbytes2, rndstats.getbytes2 );
++
++    collect_rusage_stats (NULL);
+ }
+
+========
+
+     getrusage (RUSAGE_SELF, &buf );
++    collect_rusage_stats (&buf);
+     add_randomness( &buf, sizeof buf, 1 );
+     memset( &buf, 0, sizeof buf );
+   }
+ 
+*/
+
+