rpm/rpmio/rpmpgp.c

84 lines
2.2 KiB
C

/** \ingroup rpmio signature
* \file rpmio/rpmpgp.c
* Routines to handle RFC-2440 detached signatures.
*/
#include "system.h"
#include <time.h>
#include <netinet/in.h>
#include <rpm/rpmstring.h>
#include <rpm/rpmlog.h>
#include "rpmpgpval.h"
#include "rpmio_internal.h" /* XXX rpmioSlurp */
#include "debug.h"
static const char * pgpValStr(pgpValTbl vs, uint8_t val)
{
do {
if (vs->val == val)
break;
} while ((++vs)->val != -1);
return vs->str;
}
static pgpValTbl pgpValTable(pgpValType type)
{
switch (type) {
case PGPVAL_TAG: return pgpTagTbl;
case PGPVAL_ARMORBLOCK: return pgpArmorTbl;
case PGPVAL_ARMORKEY: return pgpArmorKeyTbl;
case PGPVAL_SIGTYPE: return pgpSigTypeTbl;
case PGPVAL_SUBTYPE: return pgpSubTypeTbl;
case PGPVAL_PUBKEYALGO: return pgpPubkeyTbl;
case PGPVAL_SYMKEYALGO: return pgpSymkeyTbl;
case PGPVAL_COMPRESSALGO: return pgpCompressionTbl;
case PGPVAL_HASHALGO: return pgpHashTbl;
case PGPVAL_SERVERPREFS: return pgpKeyServerPrefsTbl;
default:
break;
}
return NULL;
}
const char * pgpValString(pgpValType type, uint8_t val)
{
pgpValTbl tbl = pgpValTable(type);
return (tbl != NULL) ? pgpValStr(tbl, val) : NULL;
}
char *pgpIdentItem(pgpDigParams digp)
{
char *id = NULL;
if (digp) {
char *signid = rpmhex(pgpDigParamsSignID(digp) + 4, PGP_KEYID_LEN - 4);
rasprintf(&id, _("V%d %s/%s %s, key ID %s"),
pgpDigParamsVersion(digp),
pgpValString(PGPVAL_PUBKEYALGO,
pgpDigParamsAlgo(digp, PGPVAL_PUBKEYALGO)),
pgpValString(PGPVAL_HASHALGO,
pgpDigParamsAlgo(digp, PGPVAL_HASHALGO)),
(pgpSignatureType(digp) == -1) ? "Public Key" : "Signature",
signid);
free(signid);
} else {
id = xstrdup(_("(none)"));
}
return id;
}
pgpArmor pgpReadPkts(const char * fn, uint8_t ** pkt, size_t * pktlen)
{
uint8_t * b = NULL;
ssize_t blen;
pgpArmor ec = PGPARMOR_ERR_NO_BEGIN_PGP; /* XXX assume failure */
int rc = rpmioSlurp(fn, &b, &blen);
if (rc == 0 && b != NULL && blen > 0) {
ec = pgpParsePkts((const char *) b, pkt, pktlen);
}
free(b);
return ec;
}