rpm/rpmio/digest.c

95 lines
1.9 KiB
C

/** \ingroup signature
* \file rpmio/digest.c
*/
#include "system.h"
#include <map>
#include <rpm/rpmcrypto.h>
#include "debug.h"
struct rpmDigestBundle_s {
std::map<int,DIGEST_CTX> digs; /*!< ID based map of digests. */
};
rpmDigestBundle rpmDigestBundleNew(void)
{
rpmDigestBundle bundle = new rpmDigestBundle_s {};
return bundle;
}
rpmDigestBundle rpmDigestBundleFree(rpmDigestBundle bundle)
{
if (bundle) {
for (auto & it : bundle->digs) {
rpmDigestFinal(it.second, NULL, NULL, 0);
}
delete bundle;
}
return NULL;
}
int rpmDigestBundleAdd(rpmDigestBundle bundle, int algo,
rpmDigestFlags flags)
{
return rpmDigestBundleAddID(bundle, algo, algo, flags);
}
int rpmDigestBundleAddID(rpmDigestBundle bundle, int algo, int id,
rpmDigestFlags flags)
{
int rc = -1;
if (id > 0) {
DIGEST_CTX ctx = rpmDigestInit(algo, flags);
if (ctx) {
auto ret = bundle->digs.insert({id, ctx});
if (ret.second == true) {
rc = 0;
} else {
rpmDigestFinal(ctx, NULL, NULL, 0);
}
}
}
return rc;
}
int rpmDigestBundleUpdate(rpmDigestBundle bundle, const void *data, size_t len)
{
int rc = -1;
if (bundle && data && len > 0) {
rc = 0;
for (auto & dig : bundle->digs) {
rc += rpmDigestUpdate(dig.second, data, len);
}
}
return rc;
}
int rpmDigestBundleFinal(rpmDigestBundle bundle, int id,
void ** datap, size_t * lenp, int asAscii)
{
int rc = -1;
if (bundle) {
auto it = bundle->digs.find(id);
if (it != bundle->digs.end()) {
rc = rpmDigestFinal(it->second, datap, lenp, asAscii);
bundle->digs.erase(it);
}
}
return rc;
}
DIGEST_CTX rpmDigestBundleDupCtx(rpmDigestBundle bundle, int id)
{
DIGEST_CTX dup = NULL;
if (bundle) {
auto it = bundle->digs.find(id);
if (it != bundle->digs.end()) {
dup = rpmDigestDup(it->second);
}
}
return dup;
}