Change in coreboot[master]: tint: Use the current time as random seed

[Nicola Corna (Code Review)]

Nicola Corna has uploaded this change for review. ( https://review.coreboot.org/20980

Change subject: tint: Use the current time as random seed
......................................................................

tint: Use the current time as random seed

Previously the random seed was fixed, which led to the same sequence of
blocks for each run.

Change-Id: I2e482bbb9d33cdbbf3c15916458329f99fbc4450
Signed-off-by: Nicola Corna 
---
M payloads/external/tint/libpayload_tint.patch
1 file changed, 7 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/80/20980/1

diff --git a/payloads/external/tint/libpayload_tint.patch b/payloads/external/tint/libpayload_tint.patch
index b5592dd..21b93a3 100644
--- a/payloads/external/tint/libpayload_tint.patch
+++ b/payloads/external/tint/libpayload_tint.patch
@@ -939,19 +939,22 @@

/*
   * Initialize random number generator
-@@ -41,8 +43,11 @@ void rand_init ()
+@@ -41,8 +43,14 @@ void rand_init ()
  #ifdef USE_RAND
     srand (time (NULL));
  #else
 +#if 0
     srandom (time (NULL));
  #endif
-+   srandom (123);
++   struct timeval tp;
++
++   gettimeofday (&tp, NULL);
++   srandom (tp.tv_sec);
 +#endif
  }

/*
-@@ -61,6 +66,7 @@ int rand_value (int range)
+@@ -61,6 +69,7 @@ int rand_value (int range)
   * Convert an str to long. Returns TRUE if successful,
   * FALSE otherwise.
   */
@@ -959,7 +962,7 @@
  bool str2int (int *i,const char *str)
  {
     char *endptr;
-@@ -69,3 +75,4 @@ bool str2int (int *i,const char *str)
+@@ -69,3 +78,4 @@ bool str2int (int *i,const char *str)
     return TRUE;
  }