libgcrypt/libgcrypt-1.6.3-urandom-only.patch

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diff -up libgcrypt-1.6.3/random/random-csprng.c.urandom-only libgcrypt-1.6.3/random/random-csprng.c
--- libgcrypt-1.6.3/random/random-csprng.c.urandom-only 2015-02-27 10:54:03.000000000 +0100
+++ libgcrypt-1.6.3/random/random-csprng.c 2015-03-20 08:29:27.513113519 +0100
@@ -1125,8 +1125,7 @@ getfnc_gather_random (void))(void (*)(co
enum random_origins, size_t, int);
#if USE_RNDLINUX
- if ( !access (NAME_OF_DEV_RANDOM, R_OK)
- && !access (NAME_OF_DEV_URANDOM, R_OK))
+ if (!access (NAME_OF_DEV_URANDOM, R_OK))
{
fnc = _gcry_rndlinux_gather_random;
return fnc;
diff -up libgcrypt-1.6.3/random/rndlinux.c.urandom-only libgcrypt-1.6.3/random/rndlinux.c
--- libgcrypt-1.6.3/random/rndlinux.c.urandom-only 2015-03-20 08:36:13.472098269 +0100
+++ libgcrypt-1.6.3/random/rndlinux.c 2015-03-20 08:36:43.765097131 +0100
@@ -178,7 +178,11 @@ _gcry_rndlinux_gather_random (void (*add
{
if (fd_random == -1)
{
- fd_random = open_device (NAME_OF_DEV_RANDOM, (ever_opened & 1), 1);
+ /* We try to open /dev/random first but in case the open fails
+ we gracefully retry with /dev/urandom. */
+ fd_random = open_device (NAME_OF_DEV_RANDOM, 0, 0);
+ if (fd_random == -1)
+ fd_random = open_device (NAME_OF_DEV_URANDOM, (ever_opened & 1), 1);
ever_opened |= 1;
}
fd = fd_random;