use strlcpy & strlcat (#74) * refactor checkpubkeyperms() with safe BSD functions fix gcc8 warnings ``` svr-authpubkey.c: In function 'checkpubkeyperms': svr-authpubkey.c:427:2: warning: 'strncat' specified bound 5 equals source length [-Wstringop-overflow=] strncat(filename, "/.ssh", 5); /* strlen("/.ssh") == 5 */ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ svr-authpubkey.c:433:2: warning: 'strncat' specified bound 16 equals source length [-Wstringop-overflow=] strncat(filename, "/authorized_keys", 16); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ``` see https://www.sudo.ws/todd/papers/strlcpy.html * restore strlcpy in xstrdup see original https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/xmalloc.c?rev=1.16

#!/bin/bash

set -e

./sizes
./constants

for i in $(for j in $(echo $(./hashsum -h | awk '/Algorithms/,EOF' | tail -n +2)); do echo $j; done | sort); do echo -n "$i: " && ./hashsum -a $i tests/test.key ; done > hashsum_tv.txt
difftroubles=$(diff -i -w -B hashsum_tv.txt notes/hashsum_tv.txt | grep '^<') || true
if [ -n "$difftroubles" ]; then
  echo "FAILURE: hashsum_tv.tx"
  diff -i -w -B hashsum_tv.txt notes/hashsum_tv.txt
  echo "hashsum failed"
  exit 1
else
  echo "hashsum okay"
fi


exit 0

# ref:         $Format:%D$
# git commit:  $Format:%H$
# commit time: $Format:%ai$