Mercurial > dropbear
view libtommath/bn_mp_reduce_2k_setup.c @ 1921:284c3837891c
Allow user space file locations (rootless support)
Why:
Running dropbear as a user (rootless) is aided if
files and programs can be saved/removed without
needing sudo.
What:
Use the same convention as DROPBEAR_DEFAULT_CLI_AUTHKEY;
if not starting with '/', then is relative to hedge's /home/hedge:
*_PRIV_FILENAME
DROPBEAR_PIDFILE
SFTPSERVER_PATH
default_options.h commentary added.
Changes kept to a minimum, so log entry in svr_kex.c#163
is refactored.
From:
Generated hostkey is <path> ... <finger-print>
to:
Generated hostkey path is <path>
Generated hostkey fingerprint is <fp>
Otherwise the unexpanded path was reported.
Patch modified by Matt Johnston
Signed-off-by: Begley Brothers Inc <[email protected]>
author | Begley Brothers Inc <begleybrothers@gmail.com> |
---|---|
date | Thu, 09 Jul 2020 17:47:58 +1000 |
parents | 1051e4eea25a |
children |
line wrap: on
line source
#include "tommath_private.h" #ifdef BN_MP_REDUCE_2K_SETUP_C /* LibTomMath, multiple-precision integer library -- Tom St Denis */ /* SPDX-License-Identifier: Unlicense */ /* determines the setup value */ mp_err mp_reduce_2k_setup(const mp_int *a, mp_digit *d) { mp_err err; mp_int tmp; int p; if ((err = mp_init(&tmp)) != MP_OKAY) { return err; } p = mp_count_bits(a); if ((err = mp_2expt(&tmp, p)) != MP_OKAY) { mp_clear(&tmp); return err; } if ((err = s_mp_sub(&tmp, a, &tmp)) != MP_OKAY) { mp_clear(&tmp); return err; } *d = tmp.dp[0]; mp_clear(&tmp); return MP_OKAY; } #endif