[PATCH 3/5] tests/bench-slope: remove VLA usage

[Jussi Kivilinna]

* tests/bench-slope.c (bench_set_cipher_key): New.
(bench_encrypt_init, bench_xts_encrypt_init): Use'bench_set_cipher_key'
to remove VLA usage.
--

Signed-off-by: Jussi Kivilinna <jussi.kivilinna at iki.fi>
---
 tests/bench-slope.c | 59 ++++++++++++++++++++++++---------------------
 1 file changed, 31 insertions(+), 28 deletions(-)

diff --git a/tests/bench-slope.c b/tests/bench-slope.c
index aaddaa85..1cad6813 100644
--- a/tests/bench-slope.c
+++ b/tests/bench-slope.c
@@ -982,6 +982,35 @@ struct bench_cipher_mode
 };
 
 
+static void
+bench_set_cipher_key (gcry_cipher_hd_t hd, int keylen)
+{
+  char *key;
+  int err, i;
+
+  key = malloc (keylen);
+  if (!key)
+    {
+      fprintf (stderr, PGM ": couldn't allocate %d bytes\n", keylen);
+      gcry_cipher_close (hd);
+      exit (1);
+    }
+
+  for (i = 0; i < keylen; i++)
+    key[i] = 0x33 ^ (11 - i);
+
+  err = gcry_cipher_setkey (hd, key, keylen);
+  free (key);
+  if (err)
+    {
+      fprintf (stderr, PGM ": gcry_cipher_setkey failed: %s\n",
+                gpg_strerror (err));
+      gcry_cipher_close (hd);
+      exit (1);
+    }
+}
+
+
 static int
 bench_encrypt_init (struct bench_obj *obj)
 {
@@ -1010,20 +1039,7 @@ bench_encrypt_init (struct bench_obj *obj)
 
   if (keylen)
     {
-      char key[keylen];
-      int i;
-
-      for (i = 0; i < keylen; i++)
-	key[i] = 0x33 ^ (11 - i);
-
-      err = gcry_cipher_setkey (hd, key, keylen);
-      if (err)
-	{
-	  fprintf (stderr, PGM ": gcry_cipher_setkey failed: %s\n",
-		   gpg_strerror (err));
-	  gcry_cipher_close (hd);
-	  exit (1);
-	}
+      bench_set_cipher_key (hd, keylen);
     }
   else
     {
@@ -1119,20 +1135,7 @@ bench_xts_encrypt_init (struct bench_obj *obj)
   keylen = gcry_cipher_get_algo_keylen (mode->algo) * 2;
   if (keylen)
     {
-      char key[keylen];
-      int i;
-
-      for (i = 0; i < keylen; i++)
-	key[i] = 0x33 ^ (11 - i);
-
-      err = gcry_cipher_setkey (hd, key, keylen);
-      if (err)
-	{
-	  fprintf (stderr, PGM ": gcry_cipher_setkey failed: %s\n",
-		   gpg_strerror (err));
-	  gcry_cipher_close (hd);
-	  exit (1);
-	}
+      bench_set_cipher_key (hd, keylen);
     }
   else
     {
-- 
2.34.1