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Demo scripts: create a seedfile if the configuration requires it

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2020-04-23 17:50:26 +02:00
parent d1b5f6f609
commit 958be36b19
1 changed files with 16 additions and 0 deletions
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16
programs/demo_common.sh
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@ -71,6 +71,14 @@ run_bad () {
not "$@"
}
## config_has SYMBOL...
## Succeeds if the library configuration has all SYMBOLs set.
config_has () {
for x in "$@"; do
"$programs_dir/test/query_compile_time_config" "$x"
done
}
## Add the names of files to clean up to this whitespace-separated variable.
## The file names must not contain whitespace characters.
files_to_clean=
@ -87,3 +95,11 @@ cleanup () {
trap 'cleanup; trap - HUP; kill -HUP $$' HUP
trap 'cleanup; trap - INT; kill -INT $$' INT
trap 'cleanup; trap - TERM; kill -TERM $$' TERM
if config_has MBEDTLS_ENTROPY_NV_SEED; then
# Create a seedfile that's sufficiently long in all library configurations.
# This is necessary for programs that use randomness.
# Assume that the name of the seedfile is the default name.
files_to_clean="$files_to_clean seedfile"
dd if=/dev/urandom of=seedfile ibs=64 obs=64 count=1
fi