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/*
* Copyright (c) 2018, SUSE Inc.
*
* This program is licensed under the BSD license, read LICENSE.BSD
* for further information
*/
/*
* repo_rpmdb_librpm.h
*
* Use librpm to access the rpm database
*
*/
#include <rpm/rpmts.h>
#include <rpm/rpmmacro.h>
struct rpmdbstate {
Pool *pool;
char *rootdir;
RpmHead *rpmhead; /* header storage space */
int rpmheadsize;
int dbenvopened; /* database environment opened */
int pkgdbopened; /* package database openend */
int is_ostree; /* read-only db that lives in /usr/share/rpm */
rpmts ts;
rpmdbMatchIterator mi; /* iterator over packages database */
};
static int
stat_database(struct rpmdbstate *state, char *dbname, struct stat *statbuf, int seterror)
{
char *dbpath;
dbpath = solv_dupjoin(state->rootdir, state->is_ostree ? "/usr/share/rpm/" : "/var/lib/rpm/", dbname);
if (stat(dbpath, statbuf))
{
if (seterror)
pool_error(state->pool, -1, "%s: %s", dbpath, strerror(errno));
free(dbpath);
return -1;
}
free(dbpath);
return 0;
}
static int
opendbenv(struct rpmdbstate *state)
{
const char *rootdir = state->rootdir;
rpmts ts;
char *dbpath;
dbpath = solv_dupjoin("_dbpath ", rootdir, "/var/lib/rpm");
if (access(dbpath + 8, W_OK) == -1)
{
free(dbpath);
dbpath = solv_dupjoin(rootdir, "/usr/share/rpm/Packages", 0);
if (access(dbpath, R_OK) == 0)
state->is_ostree = 1;
free(dbpath);
dbpath = solv_dupjoin("_dbpath ", rootdir, state->is_ostree ? "/usr/share/rpm" : "/var/lib/rpm");
}
rpmDefineMacro(NULL, dbpath, 0);
solv_free(dbpath);
ts = rpmtsCreate();
if (!ts)
{
pool_error(state->pool, 0, "rpmtsCreate failed");
delMacro(NULL, "_dbpath");
return 0;
}
if (rpmtsOpenDB(ts, O_RDONLY))
{
pool_error(state->pool, 0, "rpmtsOpenDB failed: %s", strerror(errno));
rpmtsFree(ts);
delMacro(NULL, "_dbpath");
return 0;
}
delMacro(NULL, "_dbpath");
rpmtsSetVSFlags(ts, _RPMVSF_NODIGESTS | _RPMVSF_NOSIGNATURES | _RPMVSF_NOHEADER);
state->ts = ts;
state->dbenvopened = 1;
state->pkgdbopened = 1;
return 1;
}
static void
closedbenv(struct rpmdbstate *state)
{
if (state->ts)
rpmtsFree(state->ts);
state->ts = 0;
state->pkgdbopened = 0;
state->dbenvopened = 0;
}
static int
openpkgdb(struct rpmdbstate *state)
{
/* already done in opendbenv */
return 1;
}
static void
closepkgdb(struct rpmdbstate *state)
{
}
/* get the rpmdbids of all installed packages from the Name index database.
* This is much faster then querying the big Packages database */
static struct rpmdbentry *
getinstalledrpmdbids(struct rpmdbstate *state, const char *index, const char *match, int *nentriesp, char **namedatap, int keep_gpg_pubkey)
{
const void * key;
size_t keylen, matchl = 0;
Id nameoff;
char *namedata = 0;
int namedatal = 0;
struct rpmdbentry *entries = 0;
int nentries = 0;
rpmdbIndexIterator ii;
int i;
*nentriesp = 0;
if (namedatap)
*namedatap = 0;
if (state->dbenvopened != 1 && !opendbenv(state))
return 0;
if (match)
matchl = strlen(match);
ii = rpmdbIndexIteratorInit(rpmtsGetRdb(state->ts), RPMDBI_NAME);
while (rpmdbIndexIteratorNext(ii, &key, &keylen) == 0)
{
if (match)
{
if (keylen != matchl || memcmp(key, match, keylen) != 0)
continue;
}
else if (!keep_gpg_pubkey && keylen == 10 && !memcmp(key, "gpg-pubkey", 10))
continue;
nameoff = namedatal;
if (namedatap)
{
namedata = solv_extend(namedata, namedatal, keylen + 1, 1, NAMEDATA_BLOCK);
memcpy(namedata + namedatal, key, keylen);
namedata[namedatal + keylen] = 0;
namedatal += keylen + 1;
}
for (i = 0; i < rpmdbIndexIteratorNumPkgs(ii); i++)
{
entries = solv_extend(entries, nentries, 1, sizeof(*entries), ENTRIES_BLOCK);
entries[nentries].rpmdbid = rpmdbIndexIteratorPkgOffset(ii, i);
entries[nentries].nameoff = nameoff;
nentries++;
}
}
rpmdbIndexIteratorFree(ii);
/* make sure that enteries is != 0 if there was no error */
if (!entries)
entries = solv_extend(entries, 1, 1, sizeof(*entries), ENTRIES_BLOCK);
*nentriesp = nentries;
if (namedatap)
*namedatap = namedata;
return entries;
}
/* retrive header by rpmdbid, returns 0 if not found, -1 on error */
static int
getrpm_dbid(struct rpmdbstate *state, Id rpmdbid)
{
Header h;
rpmdbMatchIterator mi;
unsigned int offset = rpmdbid;
if (state->dbenvopened != 1 && !opendbenv(state))
return -1;
mi = rpmtsInitIterator(state->ts, RPMDBI_PACKAGES, &offset, sizeof(offset));
h = rpmdbNextIterator(mi);
if (!h)
{
rpmdbFreeIterator(mi);
return 0;
}
if (!rpm_byrpmh(state, h))
{
rpmdbFreeIterator(mi);
return -1;
}
mi = rpmdbFreeIterator(mi);
return 1;
}
static int
count_headers(struct rpmdbstate *state)
{
int count;
rpmdbMatchIterator mi;
if (state->dbenvopened != 1 && !opendbenv(state))
return 0;
mi = rpmtsInitIterator(state->ts, RPMDBI_NAME, NULL, 0);
count = rpmdbGetIteratorCount(mi);
rpmdbFreeIterator(mi);
return count;
}
static int
pkgdb_cursor_open(struct rpmdbstate *state)
{
state->mi = rpmtsInitIterator(state->ts, RPMDBI_PACKAGES, NULL, 0);
return 0;
}
static void
pkgdb_cursor_close(struct rpmdbstate *state)
{
rpmdbFreeIterator(state->mi);
state->mi = 0;
}
static Id
pkgdb_cursor_getrpm(struct rpmdbstate *state)
{
Header h;
while ((h = rpmdbNextIterator(state->mi)))
{
Id dbid = rpmdbGetIteratorOffset(state->mi);
if (!rpm_byrpmh(state, h))
continue;
return dbid;
}
return 0;
}
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