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#!/usr/bin/env bash
set -e
SCRIPT_DIR="$(realpath "$(dirname "${0}")")"
NDPI_LIB="${1:-${SCRIPT_DIR}/../src/lib/libndpi.a}"
if [ ! -r "${NDPI_LIB}" ]; then
printf '%s\n' "${0}: nDPI static library '$(realpath "${NDPI_LIB}")' not found."
exit 1
fi
FAIL_COUNT=0
CURRENT_OBJECT=''
for line in $(nm -P -u "${NDPI_LIB}"); do
OBJECT="$(printf '%s' "${line}" | grep -E "^${NDPI_LIB}\[.*\.o\]:" | grep -oE "\[.*\.o\]" || true)"
if [ ! -z "${OBJECT}" ]; then
CURRENT_OBJECT="${OBJECT}"
fi
#printf '%s\n' "${line}"
FOUND_SYMBOL="$(printf '%s' "${line}" | grep '^\(malloc\|calloc\|realloc\|free\|printf\|fprintf\|isdigit\|isalpha\|isalnum\|isspace\|isprint\|ispunct\)$' || true)"
if [ ! -z "${FOUND_SYMBOL}" ]; then
SKIP=0
case "${CURRENT_OBJECT}" in
'[ndpi_main.o]')
case "${FOUND_SYMBOL}" in
'printf'|'fprintf') SKIP=1 ;;
esac
;;
'[ahocorasick.o]')
case "${FOUND_SYMBOL}" in
'fprintf') SKIP=1 ;;
esac
;;
'[roaring.o]')
case "${FOUND_SYMBOL}" in
'malloc'|'calloc'|'realloc'|'free') SKIP=1 ;;
esac
;;
'[ndpi_utils.o]'|'[ndpi_memory.o]')
case "${FOUND_SYMBOL}" in
'malloc'|'calloc'|'free') SKIP=1 ;;
esac
;;
'[gcrypt_light.o]')
case "${FOUND_SYMBOL}" in
'free') SKIP=1 ;;
esac
;;
esac
if [ ${SKIP} -eq 0 ]; then
FAIL_COUNT="$((FAIL_COUNT + 1))"
printf '%s: %s\n' "${CURRENT_OBJECT}" "${FOUND_SYMBOL}"
fi
fi
done
printf 'Unwanted symbols found: %s\n' "${FAIL_COUNT}"
if [ ${FAIL_COUNT} -gt 0 ]; then
printf '%s\n' 'Please make sure to use only ndpi_malloc/ndpi_calloc/ndpi_realloc/ndpi_free/ndpi_isdigit/ndpi_isalpha/ndpi_isalnum/ndpi_isspace/ndpi_isprint/ndpi_ispunct wrapper instead of malloc/calloc/realloc/free/isdigit/isalpha/isalnum/isspace/isprint/ispunct'
fi
exit ${FAIL_COUNT}
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