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| author | Paul Eggert <eggert@cs.ucla.edu> | 2016-01-17 12:12:08 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2016-01-17 12:13:49 -0800 |
| commit | 05e8148a24ebe51fbe758dd16265e8fb81f85953 (patch) | |
| tree | 447c9fa28f9b8b3e8380f4f1c039b6cf76ce5750 /src/emacs-module.c | |
| parent | a0d5b7ae3bb014bb0b1c205d123c597df0e76411 (diff) | |
| download | emacs-05e8148a24ebe51fbe758dd16265e8fb81f85953.tar.gz emacs-05e8148a24ebe51fbe758dd16265e8fb81f85953.tar.bz2 emacs-05e8148a24ebe51fbe758dd16265e8fb81f85953.zip | |
Prefer GnuTLS when acquiring random seed
This attempts to improve on the fix for Bug#22202.
* configure.ac (HAVE_DEV_URANDOM): Remove.
Check /dev/urandom existence at run time, not at build time,
since the device could exist in the former but not the latter.
* src/sysdep.c [HAVE_GNUTLS]: Include gnutls/gnutls.h.
(gnutls_rnd) [GNUTLS_VERSION_NUMBER < 0x020c00]: New fallback macro.
(random_seed): New typedef.
(set_random_seed): New static function.
(seed_random): Use them.
(init_random): Use random_seed instead of uintmax_t, so as to
not consume more entropy than needed. Prefer gnutls_rnd if it
works; this avoids a redundant open of /dev/urandom on
GNU/Linux with modern GnuTLS.
Diffstat (limited to 'src/emacs-module.c')
0 files changed, 0 insertions, 0 deletions