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fixed available algo enumeration

master
Chris Punches 2025-03-15 23:03:10 -04:00
parent aad077a24a
commit 5ec3c0ca83
1 changed files with 14 additions and 19 deletions
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33
modules/build/src/checksums.cpp
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@ -31,28 +31,23 @@ std::string get_configured_hash_algorithm()
std::string get_available_algorithms() std::string get_available_algorithms()
{ {
std::stringstream algorithms; std::stringstream algorithms;
bool first = true;
// The OBJ_NAME_do_all_sorted will call the supplied callback function // Only list algorithms that are actually usable for file checksums
// for each algorithm const char* usable_digests[] = {
struct AlgorithmCollector { "md5", "sha1", "sha224", "sha256", "sha384", "sha512"
static void callback(const OBJ_NAME* obj, void* arg) {
if (obj->type == OBJ_NAME_TYPE_MD_METH) {
std::stringstream* ss = static_cast<std::stringstream*>(arg);
if (!ss->str().empty()) {
*ss << ", ";
}
*ss << obj->name;
}
}
}; };
// Initialize OpenSSL objects for (const char* digest : usable_digests) {
OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL); // Verify the algorithm is actually available in this OpenSSL build
if (EVP_get_digestbyname(digest) != nullptr) {
// Collect all digest algorithm names if (!first) {
OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH, algorithms << ", ";
reinterpret_cast<void (*)(const OBJ_NAME*, void*)>(AlgorithmCollector::callback), }
&algorithms); algorithms << digest;
first = false;
}
}
return algorithms.str(); return algorithms.str();
} }