From 13c03c8d6da334bb1cde6ce4133e7c75b3b76947 Mon Sep 17 00:00:00 2001 From: Matt Caswell Date: Wed, 15 Jun 2016 11:14:30 -0400 Subject: Change default directory for storing the .rnd file on Windows Previously we would try %RANDFILE%, then %HOME% and finally "C:". Unfortunately this often ends up being "C:" which the user may not have write permission for. Now we try %RANDFILE% first, and then the same set of environment vars as GetTempFile() uses, i.e. %TMP%, then %TEMP%, %USERPROFILE% and %SYSTEMROOT%. If all else fails we fall back to %HOME% and only then "C:". Reviewed-by: Rich Salz --- doc/crypto/RAND_load_file.pod | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'doc') diff --git a/doc/crypto/RAND_load_file.pod b/doc/crypto/RAND_load_file.pod index 133b8d2311..dd79af28ae 100644 --- a/doc/crypto/RAND_load_file.pod +++ b/doc/crypto/RAND_load_file.pod @@ -18,8 +18,16 @@ RAND_load_file, RAND_write_file, RAND_file_name - PRNG seed file RAND_file_name() generates a default path for the random seed file. B points to a buffer of size B in which to store the -filename. The seed file is $RANDFILE if that environment variable is -set, $HOME/.rnd otherwise. If $HOME is not set either, or B is +filename. + +On Windows the seed file is %RANDFILE% if that environment variable is set. +Otherwise the file is called ".rnd" in one of the following locations (in order +of preference): %TMP%, %TEMP%, %USERPROFILE%, %SYSTEMROOT%, %HOME%, "C:". + +On all other systems the seed file is $RANDFILE if that environment variable is +set, $HOME/.rnd otherwise. + +If $HOME (on non Windows systems) is not set either, or B is too small for the path name, an error occurs. RAND_load_file() reads a number of bytes from file B and -- cgit v1.2.3