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rpmdb.c
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/** \ingroup rpmdb dbi
* \file lib/rpmdb.c
*/
#include "system.h"
#include <sys/file.h>
#include <utime.h>
#include <errno.h>
#ifndef DYING /* XXX already in "system.h" */
#include <fnmatch.h>
#endif
#include <regex.h>
#include <rpm/rpmtypes.h>
#include <rpm/rpmurl.h>
#include <rpm/rpmpgp.h>
#include <rpm/rpmpgp.h>
#include <rpm/rpmmacro.h>
#include <rpm/rpmsq.h>
#include <rpm/rpmstring.h>
#include <rpm/rpmfileutil.h>
#include <rpm/rpmds.h> /* XXX isInstallPreReq macro only */
#include <rpm/rpmlog.h>
#include <rpm/rpmdb.h>
#include <rpm/rpmts.h>
#include <rpm/argv.h>
#include "lib/rpmchroot.h"
#include "lib/rpmdb_internal.h"
#include "lib/fprint.h"
#include "lib/header_internal.h" /* XXX for headerSetInstance() */
#include "lib/backend/dbi.h"
#include "lib/backend/dbiset.h"
#include "lib/misc.h"
#include "debug.h"
#undef HASHTYPE
#undef HTKEYTYPE
#undef HTDATATYPE
#define HASHTYPE dbChk
#define HTKEYTYPE unsigned int
#define HTDATATYPE rpmRC
#include "lib/rpmhash.H"
#include "lib/rpmhash.C"
#undef HASHTYPE
#undef HTKEYTYPE
#undef HTDATATYPE
static rpmdb rpmdbUnlink(rpmdb db);
static int buildIndexes(rpmdb db)
{
int rc = 0;
Header h;
rpmdbMatchIterator mi;
rc += rpmdbOpenAll(db);
/* If the main db was just created, this is expected - dont whine */
if (!(dbiFlags(db->db_pkgs) & DBI_CREATED)) {
rpmlog(RPMLOG_WARNING,
_("Generating %d missing index(es), please wait...\n"),
db->db_buildindex);
}
/* Don't call us again */
db->db_buildindex = 0;
dbSetFSync(db, 0);
dbCtrl(db, RPMDB_CTRL_LOCK_RW);
mi = rpmdbInitIterator(db, RPMDBI_PACKAGES, NULL, 0);
while ((h = rpmdbNextIterator(mi))) {
unsigned int hdrNum = headerGetInstance(h);
/* Build all secondary indexes which were created on open */
for (int dbix = 0; dbix < db->db_ndbi; dbix++) {
dbiIndex dbi = db->db_indexes[dbix];
if (dbi && (dbiFlags(dbi) & DBI_CREATED)) {
rc += idxdbPut(dbi, db->db_tags[dbix], hdrNum, h);
}
}
}
rpmdbFreeIterator(mi);
dbCtrl(db, DB_CTRL_INDEXSYNC);
dbCtrl(db, DB_CTRL_UNLOCK_RW);
dbSetFSync(db, !db->cfg.db_no_fsync);
return rc;
}
static int uintCmp(unsigned int a, unsigned int b)
{
return (a != b);
}
static unsigned int uintId(unsigned int a)
{
return a;
}
/** \ingroup dbi
* Return (newly allocated) integer of the epoch.
* @param s version string optionally containing epoch number
* @retval version only the version part of s
* @return epoch integer within the [0; UINT32_MAX] interval,
* or -1 for no epoch
*/
static int64_t splitEpoch(const char *s, const char **version)
{
int64_t e;
char *end;
int saveerrno = errno;
*version = s;
e = strtol(s, &end, 10);
if (*end == ':' && e >= 0 && e <= UINT32_MAX) {
*version = end + 1;
} else {
e = -1;
}
errno = saveerrno;
return e;
}
static int pkgdbOpen(rpmdb db, int flags, dbiIndex *dbip)
{
int rc = 0;
dbiIndex dbi = NULL;
if (db == NULL)
return -1;
/* Is this it already open ? */
if ((dbi = db->db_pkgs) != NULL)
goto exit;
rc = dbiOpen(db, RPMDBI_PACKAGES, &dbi, flags);
if (rc == 0) {
int verifyonly = (flags & RPMDB_FLAG_VERIFYONLY);
db->db_pkgs = dbi;
/* Allocate header checking cache .. based on some random number */
if (!verifyonly && (db->db_checked == NULL)) {
db->db_checked = dbChkCreate(567, uintId, uintCmp, NULL, NULL);
}
/* If primary got created, we can safely run without fsync */
if ((!verifyonly && (dbiFlags(dbi) & DBI_CREATED)) || db->cfg.db_no_fsync) {
rpmlog(RPMLOG_DEBUG, "disabling fsync on database\n");
db->cfg.db_no_fsync = 1;
dbSetFSync(db, 0);
}
} else {
rpmlog(RPMLOG_ERR, _("cannot open %s index using %s - %s (%d)\n"),
rpmTagGetName(RPMDBI_PACKAGES), db->db_descr,
(rc > 0 ? strerror(rc) : ""), rc);
}
exit:
if (rc == 0 && dbip)
*dbip = dbi;
return rc;
}
static int indexOpen(rpmdb db, rpmDbiTagVal rpmtag, int flags, dbiIndex *dbip)
{
int dbix, rc = 0;
dbiIndex dbi = NULL;
if (db == NULL)
return -1;
for (dbix = 0; dbix < db->db_ndbi; dbix++) {
if (rpmtag == db->db_tags[dbix])
break;
}
if (dbix >= db->db_ndbi)
return -1;
/* Is this index already open ? */
if ((dbi = db->db_indexes[dbix]) != NULL)
goto exit;
rc = dbiOpen(db, rpmtag, &dbi, flags);
if (rc == 0) {
int verifyonly = (flags & RPMDB_FLAG_VERIFYONLY);
int rebuild = (db->db_flags & RPMDB_FLAG_REBUILD);
db->db_indexes[dbix] = dbi;
if (!rebuild && !verifyonly && (dbiFlags(dbi) & DBI_CREATED)) {
rpmlog(RPMLOG_DEBUG, "index %s needs creating\n", dbiName(dbi));
db->db_buildindex++;
if (db->db_buildindex == 1) {
buildIndexes(db);
}
}
} else {
rpmlog(RPMLOG_ERR, _("cannot open %s index using %s - %s (%d)\n"),
rpmTagGetName(rpmtag), db->db_descr,
(rc > 0 ? strerror(rc) : ""), rc);
}
exit:
if (rc == 0 && dbip)
*dbip = dbi;
return rc;
}
static rpmRC indexGet(dbiIndex dbi, const char *keyp, size_t keylen,
dbiIndexSet *set)
{
rpmRC rc = RPMRC_FAIL; /* assume failure */
if (dbi != NULL) {
dbiCursor dbc = dbiCursorInit(dbi, DBC_READ);
if (keyp) {
if (keylen == 0)
keylen = strlen(keyp);
rc = idxdbGet(dbi, dbc, keyp, keylen, set, DBC_NORMAL_SEARCH);
} else {
do {
rc = idxdbGet(dbi, dbc, NULL, 0, set, DBC_NORMAL_SEARCH);
} while (rc == RPMRC_OK);
/* If we got some results, not found is not an error */
if (rc == RPMRC_NOTFOUND && set != NULL)
rc = RPMRC_OK;
}
dbiCursorFree(dbi, dbc);
}
return rc;
}
static rpmRC indexPrefixGet(dbiIndex dbi, const char *pfx, size_t plen,
dbiIndexSet *set)
{
rpmRC rc = RPMRC_FAIL; /* assume failure */
if (dbi != NULL && pfx) {
dbiCursor dbc = dbiCursorInit(dbi, DBC_READ);
if (plen == 0)
plen = strlen(pfx);
rc = idxdbGet(dbi, dbc, pfx, plen, set, DBC_PREFIX_SEARCH);
dbiCursorFree(dbi, dbc);
}
return rc;
}
typedef struct miRE_s {
rpmTagVal tag; /*!< header tag */
rpmMireMode mode; /*!< pattern match mode */
char * pattern; /*!< pattern string */
int notmatch; /*!< like "grep -v" */
regex_t * preg; /*!< regex compiled pattern buffer */
int cflags; /*!< regcomp(3) flags */
int eflags; /*!< regexec(3) flags */
int fnflags; /*!< fnmatch(3) flags */
} * miRE;
struct rpmdbMatchIterator_s {
rpmdbMatchIterator mi_next;
rpmdb mi_db;
rpmDbiTagVal mi_rpmtag;
dbiIndexSet mi_set;
dbiCursor mi_dbc;
int mi_setx;
Header mi_h;
int mi_sorted;
int mi_cflags;
int mi_modified;
unsigned int mi_prevoffset; /* header instance (native endian) */
unsigned int mi_offset; /* header instance (native endian) */
unsigned int mi_filenum; /* tag element (native endian) */
int mi_nre;
miRE mi_re;
rpmts mi_ts;
rpmRC (*mi_hdrchk) (rpmts ts, const void * uh, size_t uc, char ** msg);
};
struct rpmdbIndexIterator_s {
rpmdbIndexIterator ii_next;
rpmdb ii_db;
dbiIndex ii_dbi;
rpmDbiTag ii_rpmtag;
dbiCursor ii_dbc;
dbiIndexSet ii_set;
unsigned int *ii_hdrNums;
int ii_skipdata;
};
static rpmdb rpmdbRock;
static rpmdbMatchIterator rpmmiRock;
static rpmdbIndexIterator rpmiiRock;
void rpmAtExit(void)
{
rpmdb db;
rpmdbMatchIterator mi;
rpmdbIndexIterator ii;
while ((mi = rpmmiRock) != NULL)
rpmdbFreeIterator(mi);
while ((ii = rpmiiRock) != NULL)
rpmdbIndexIteratorFree(ii);
while ((db = rpmdbRock) != NULL)
(void) rpmdbClose(db);
}
rpmop rpmdbOp(rpmdb rpmdb, rpmdbOpX opx)
{
rpmop op = NULL;
switch (opx) {
case RPMDB_OP_DBGET:
op = &rpmdb->db_getops;
break;
case RPMDB_OP_DBPUT:
op = &rpmdb->db_putops;
break;
case RPMDB_OP_DBDEL:
op = &rpmdb->db_delops;
break;
default:
break;
}
return op;
}
const char *rpmdbHome(rpmdb db)
{
const char *dbdir = NULL;
if (db) {
dbdir = rpmChrootDone() ? db->db_home : db->db_fullpath;
}
return dbdir;
}
int rpmdbOpenAll(rpmdb db)
{
int rc = 0;
if (db == NULL) return -2;
rc = pkgdbOpen(db, db->db_flags, NULL);
for (int dbix = 0; dbix < db->db_ndbi; dbix++) {
rc += indexOpen(db, db->db_tags[dbix], db->db_flags, NULL);
}
return rc;
}
static int dbiForeach(dbiIndex *dbis, int ndbi,
int (*func) (dbiIndex, unsigned int), int del)
{
int xx, rc = 0;
for (int dbix = ndbi; --dbix >= 0; ) {
if (dbis[dbix] == NULL)
continue;
xx = func(dbis[dbix], 0);
if (xx && rc == 0) rc = xx;
if (del)
dbis[dbix] = NULL;
}
return rc;
}
int rpmdbClose(rpmdb db)
{
rpmdb * prev, next;
int rc = 0;
if (db == NULL)
goto exit;
prev = &rpmdbRock;
while ((next = *prev) != NULL && next != db)
prev = &next->db_next;
if (!next)
goto exit;
(void) rpmdbUnlink(db);
if (db->nrefs > 0)
goto exit;
/* Always re-enable fsync on close of rw-database */
if ((db->db_mode & O_ACCMODE) != O_RDONLY)
dbSetFSync(db, 1);
if (db->db_pkgs)
rc = dbiClose(db->db_pkgs, 0);
rc += dbiForeach(db->db_indexes, db->db_ndbi, dbiClose, 1);
db->db_root = _free(db->db_root);
db->db_home = _free(db->db_home);
db->db_fullpath = _free(db->db_fullpath);
db->db_checked = dbChkFree(db->db_checked);
db->db_indexes = _free(db->db_indexes);
if (next) {
*prev = next->db_next;
next->db_next = NULL;
}
db = _free(db);
if (rpmdbRock == NULL) {
rpmsqActivate(0);
}
exit:
return rc;
}
static rpmdb newRpmdb(const char * root, const char * home,
int mode, int perms, int flags)
{
rpmdb db = NULL;
char * db_home = rpmGetPath((home && *home) ? home : "%{_dbpath}", NULL);
static rpmDbiTag const dbiTags[] = {
RPMDBI_NAME,
RPMDBI_BASENAMES,
RPMDBI_GROUP,
RPMDBI_REQUIRENAME,
RPMDBI_PROVIDENAME,
RPMDBI_CONFLICTNAME,
RPMDBI_OBSOLETENAME,
RPMDBI_TRIGGERNAME,
RPMDBI_DIRNAMES,
RPMDBI_INSTALLTID,
RPMDBI_SIGMD5,
RPMDBI_SHA1HEADER,
RPMDBI_FILETRIGGERNAME,
RPMDBI_TRANSFILETRIGGERNAME,
RPMDBI_RECOMMENDNAME,
RPMDBI_SUGGESTNAME,
RPMDBI_SUPPLEMENTNAME,
RPMDBI_ENHANCENAME,
};
if (!(db_home && db_home[0] != '%')) {
rpmlog(RPMLOG_ERR, _("no dbpath has been set\n"));
free(db_home);
return NULL;
}
db = xcalloc(sizeof(*db), 1);
if (!(perms & 0600)) perms = 0644; /* XXX sanity */
db->db_mode = (mode >= 0) ? mode : 0;
db->db_perms = (perms >= 0) ? perms : 0644;
db->db_flags = (flags >= 0) ? flags : 0;
db->db_home = db_home;
db->db_root = rpmGetPath((root && *root) ? root : "/", NULL);
db->db_fullpath = rpmGenPath(db->db_root, db->db_home, NULL);
/* XXX remove environment after chrooted operations, for now... */
db->db_remove_env = (!rstreq(db->db_root, "/") ? 1 : 0);
db->db_tags = dbiTags;
db->db_ndbi = sizeof(dbiTags) / sizeof(rpmDbiTag);
db->db_indexes = xcalloc(db->db_ndbi, sizeof(*db->db_indexes));
db->nrefs = 0;
return rpmdbLink(db);
}
static int openDatabase(const char * prefix,
const char * dbpath, rpmdb *dbp,
int mode, int perms, int flags)
{
rpmdb db;
int rc;
int justCheck = flags & RPMDB_FLAG_JUSTCHECK;
if (dbp)
*dbp = NULL;
if ((mode & O_ACCMODE) == O_WRONLY)
return 1;
db = newRpmdb(prefix, dbpath, mode, perms, flags);
if (db == NULL)
return 1;
db->db_next = rpmdbRock;
rpmdbRock = db;
/* Try to ensure db home exists, error out if we can't even create */
rc = rpmioMkpath(rpmdbHome(db), 0755, getuid(), getgid());
if (rc == 0) {
/* Enable signal queue on the first db open */
if (db->db_next == NULL) {
rpmsqActivate(1);
}
/* Just the primary Packages database opened here */
rc = pkgdbOpen(db, db->db_flags, NULL);
db->db_descr = (rc == 0) ? db->db_ops->name : "unknown db";
}
if (rc || justCheck || dbp == NULL)
rpmdbClose(db);
else {
*dbp = db;
}
return rc;
}
static rpmdb rpmdbUnlink(rpmdb db)
{
if (db)
db->nrefs--;
return NULL;
}
rpmdb rpmdbLink(rpmdb db)
{
if (db)
db->nrefs++;
return db;
}
int rpmdbOpen (const char * prefix, rpmdb *dbp, int mode, int perms)
{
return openDatabase(prefix, NULL, dbp, mode, perms, 0);
}
int rpmdbInit (const char * prefix, int perms)
{
rpmdb db = NULL;
int rc;
rc = openDatabase(prefix, NULL, &db, (O_CREAT | O_RDWR), perms, 0);
if (db != NULL) {
int xx;
xx = rpmdbOpenAll(db);
if (xx && rc == 0) rc = xx;
xx = rpmdbClose(db);
if (xx && rc == 0) rc = xx;
db = NULL;
}
return rc;
}
int rpmdbVerify(const char * prefix)
{
rpmdb db = NULL;
int rc = 0;
rc = openDatabase(prefix, NULL, &db, O_RDONLY, 0644, RPMDB_FLAG_VERIFYONLY);
if (db != NULL) {
int xx;
rc = rpmdbOpenAll(db);
if (db->db_pkgs)
rc += dbiVerify(db->db_pkgs, 0);
rc += dbiForeach(db->db_indexes, db->db_ndbi, dbiVerify, 0);
xx = rpmdbClose(db);
if (xx && rc == 0) rc = xx;
db = NULL;
}
return rc;
}
Header rpmdbGetHeaderAt(rpmdb db, unsigned int offset)
{
rpmdbMatchIterator mi = rpmdbInitIterator(db, RPMDBI_PACKAGES,
&offset, sizeof(offset));
Header h = headerLink(rpmdbNextIterator(mi));
rpmdbFreeIterator(mi);
return h;
}
/**
* Find file matches in database.
* @param db rpm database
* @param dbi index database handle (always RPMDBI_BASENAMES)
* @param filespec
* @param usestate take file state into account?
* @retval matches
* @return RPMRC_OK on match, RPMRC_NOMATCH or RPMRC_FAIL
*/
static rpmRC rpmdbFindByFile(rpmdb db, dbiIndex dbi, const char *filespec,
int usestate, dbiIndexSet * matches)
{
char * dirName = NULL;
const char * baseName;
fingerPrintCache fpc = NULL;
fingerPrint * fp1 = NULL;
dbiIndexSet allMatches = NULL;
unsigned int i;
rpmRC rc = RPMRC_FAIL; /* assume error */
*matches = NULL;
if (filespec == NULL) return rc; /* nothing alloced yet */
if ((baseName = strrchr(filespec, '/')) != NULL) {
size_t len = baseName - filespec + 1;
dirName = strncpy(xmalloc(len + 1), filespec, len);
dirName[len] = '\0';
baseName++;
} else {
dirName = xstrdup("");
baseName = filespec;
}
if (baseName == NULL)
goto exit;
rc = indexGet(dbi, baseName, 0, &allMatches);
if (rc || allMatches == NULL) goto exit;
*matches = dbiIndexSetNew(0);
fpc = fpCacheCreate(allMatches->count, NULL);
fpLookup(fpc, dirName, baseName, &fp1);
i = 0;
while (i < allMatches->count) {
struct rpmtd_s bn, dn, di, fs;
const char ** baseNames, ** dirNames;
uint32_t * dirIndexes;
unsigned int offset = dbiIndexRecordOffset(allMatches, i);
unsigned int prevoff;
Header h = rpmdbGetHeaderAt(db, offset);
if (h == NULL) {
i++;
continue;
}
headerGet(h, RPMTAG_BASENAMES, &bn, HEADERGET_MINMEM);
headerGet(h, RPMTAG_DIRNAMES, &dn, HEADERGET_MINMEM);
headerGet(h, RPMTAG_DIRINDEXES, &di, HEADERGET_MINMEM);
baseNames = bn.data;
dirNames = dn.data;
dirIndexes = di.data;
if (usestate)
headerGet(h, RPMTAG_FILESTATES, &fs, HEADERGET_MINMEM);
do {
unsigned int num = dbiIndexRecordFileNumber(allMatches, i);
int skip = 0;
if (usestate) {
rpmtdSetIndex(&fs, num);
if (!RPMFILE_IS_INSTALLED(rpmtdGetNumber(&fs))) {
skip = 1;
}
}
if (!skip) {
const char *dirName = dirNames[dirIndexes[num]];
if (fpLookupEquals(fpc, fp1, dirName, baseNames[num])) {
dbiIndexSetAppendOne(*matches, dbiIndexRecordOffset(allMatches, i),
dbiIndexRecordFileNumber(allMatches, i), 0);
}
}
prevoff = offset;
i++;
if (i < allMatches->count)
offset = dbiIndexRecordOffset(allMatches, i);
} while (i < allMatches->count && offset == prevoff);
rpmtdFreeData(&bn);
rpmtdFreeData(&dn);
rpmtdFreeData(&di);
if (usestate)
rpmtdFreeData(&fs);
headerFree(h);
}
free(fp1);
fpCacheFree(fpc);
if ((*matches)->count == 0) {
*matches = dbiIndexSetFree(*matches);
rc = RPMRC_NOTFOUND;
} else {
rc = RPMRC_OK;
}
exit:
dbiIndexSetFree(allMatches);
free(dirName);
return rc;
}
int rpmdbCountPackages(rpmdb db, const char * name)
{
int count = -1;
dbiIndex dbi = NULL;
if (name != NULL && indexOpen(db, RPMDBI_NAME, 0, &dbi) == 0) {
dbiIndexSet matches = NULL;
rpmRC rc = indexGet(dbi, name, strlen(name), &matches);
if (rc == RPMRC_OK) {
count = dbiIndexSetCount(matches);
} else {
count = (rc == RPMRC_NOTFOUND) ? 0 : -1;
}
dbiIndexSetFree(matches);
}
return count;
}
/**
* Attempt partial matches on name[-version[-release]][.arch] strings.
* @param db rpmdb handle
* @param dbi index database
* @param name package name
* @param epoch package epoch (-1 for any epoch)
* @param version package version (can be a pattern)
* @param release package release (can be a pattern)
* @param arch package arch (can be a pattern)
* @retval matches set of header instances that match
* @return RPMRC_OK on match, RPMRC_NOMATCH or RPMRC_FAIL
*/
static rpmRC dbiFindMatches(rpmdb db, dbiIndex dbi,
const char * name,
int64_t epoch,
const char * version,
const char * release,
const char * arch,
dbiIndexSet * matches)
{
unsigned int gotMatches = 0;
rpmRC rc;
unsigned int i;
rc = indexGet(dbi, name, strlen(name), matches);
/* No matches on the name, anything else wont match either */
if (rc != RPMRC_OK)
goto exit;
/* If we got matches on name and nothing else was specified, we're done */
if (epoch < 0 && version == NULL && release == NULL && arch == NULL)
goto exit;
/* Make sure the version and release match. */
for (i = 0; i < dbiIndexSetCount(*matches); i++) {
unsigned int recoff = dbiIndexRecordOffset(*matches, i);
rpmdbMatchIterator mi;
Header h;
if (recoff == 0)
continue;
mi = rpmdbInitIterator(db, RPMDBI_PACKAGES, &recoff, sizeof(recoff));
/* Set iterator selectors for version/release if available. */
if (version &&
rpmdbSetIteratorRE(mi, RPMTAG_VERSION, RPMMIRE_DEFAULT, version))
{
rc = RPMRC_FAIL;
goto exit;
}
if (release &&
rpmdbSetIteratorRE(mi, RPMTAG_RELEASE, RPMMIRE_DEFAULT, release))
{
rc = RPMRC_FAIL;
goto exit;
}
if (arch &&
rpmdbSetIteratorRE(mi, RPMTAG_ARCH, RPMMIRE_DEFAULT, arch))
{
rc = RPMRC_FAIL;
goto exit;
}
h = rpmdbNextIterator(mi);
if (epoch >= 0 && h) {
struct rpmtd_s td;
headerGet(h, RPMTAG_EPOCH, &td, HEADERGET_MINMEM);
if (epoch != rpmtdGetNumber(&td))
h = NULL;
rpmtdFreeData(&td);
}
if (h)
(*matches)->recs[gotMatches++] = (*matches)->recs[i];
else
(*matches)->recs[i].hdrNum = 0;
rpmdbFreeIterator(mi);
}
if (gotMatches) {
(*matches)->count = gotMatches;
rc = RPMRC_OK;
} else
rc = RPMRC_NOTFOUND;
exit:
/* FIX: double indirection */
if (rc && matches && *matches)
*matches = dbiIndexSetFree(*matches);
return rc;
}
/**
* Lookup by name, name-version, and finally by name-version-release.
* Both version and release can be patterns.
* @todo Name must be an exact match, as name is a db key.
* @param db rpmdb handle
* @param dbi index database handle (always RPMDBI_NAME)
* @param arg name[-[epoch:]version[-release]] string
* @param arglen length of arg
* @param arch possible arch string (or NULL)
* @retval matches set of header instances that match
* @return RPMRC_OK on match, RPMRC_NOMATCH or RPMRC_FAIL
*/
static rpmRC dbiFindByLabelArch(rpmdb db, dbiIndex dbi,
const char * arg, size_t arglen, const char *arch,
dbiIndexSet * matches)
{
char localarg[arglen+1];
int64_t epoch;
const char * version;
const char * release;
char * s;
char c;
int brackets;
rpmRC rc;
if (arglen == 0) return RPMRC_NOTFOUND;
strncpy(localarg, arg, arglen);
localarg[arglen] = '\0';
/* did they give us just a name? */
rc = dbiFindMatches(db, dbi, localarg, -1, NULL, NULL, arch, matches);
if (rc != RPMRC_NOTFOUND)
goto exit;
/* FIX: double indirection */
*matches = dbiIndexSetFree(*matches);
/* maybe a name-[epoch:]version ? */
s = localarg + arglen;
c = '\0';
brackets = 0;
for (s -= 1; s > localarg; s--) {
switch (*s) {
case '[':
brackets = 1;
break;
case ']':
if (c != '[') brackets = 0;
break;
}
if (!brackets && c && *s == '-')
break;
c = *s;
}
/* FIX: *matches may be NULL. */
if (s == localarg) {
rc = RPMRC_NOTFOUND;
goto exit;
}
*s = '\0';
epoch = splitEpoch(s + 1, &version);
rc = dbiFindMatches(db, dbi, localarg, epoch, version, NULL, arch, matches);
if (rc != RPMRC_NOTFOUND) goto exit;
/* FIX: double indirection */
*matches = dbiIndexSetFree(*matches);
/* how about name-[epoch:]version-release? */
release = s + 1;
c = '\0';
brackets = 0;
for (; s > localarg; s--) {
switch (*s) {
case '[':
brackets = 1;
break;
case ']':
if (c != '[') brackets = 0;
break;
}
if (!brackets && c && *s == '-')
break;
c = *s;
}
if (s == localarg) {
rc = RPMRC_NOTFOUND;
goto exit;
}
*s = '\0';
/* FIX: *matches may be NULL. */
epoch = splitEpoch(s + 1, &version);
rc = dbiFindMatches(db, dbi, localarg, epoch, version, release, arch, matches);
exit:
return rc;
}
static rpmRC dbiFindByLabel(rpmdb db, dbiIndex dbi, const char * label,
dbiIndexSet * matches)
{
const char *arch = NULL;
/* First, try with label as it is */
rpmRC rc = dbiFindByLabelArch(db, dbi, label, strlen(label), NULL, matches);
/* If not found, retry with possible .arch specifier if there is one */
if (rc == RPMRC_NOTFOUND && (arch = strrchr(label, '.')))
rc = dbiFindByLabelArch(db, dbi, label, arch-label, arch+1, matches);
return rc;
}
/**
* Rewrite a header into packages (if necessary) and free the header.
* Note: this is called from a markReplacedFiles iteration, and *must*
* preserve the "join key" (i.e. offset) for the header.
* @param mi database iterator
* @param dbi index database handle
* @return 0 on success
*/
static int miFreeHeader(rpmdbMatchIterator mi, dbiIndex dbi)
{
int rc = 0;
if (mi == NULL || mi->mi_h == NULL)
return 0;
if (dbi && mi->mi_dbc && mi->mi_modified && mi->mi_prevoffset) {
rpmRC rpmrc = RPMRC_NOTFOUND;
unsigned int hdrLen = 0;
unsigned char *hdrBlob = headerExport(mi->mi_h, &hdrLen);
/* Check header digest/signature on blob export (if requested). */
if (mi->mi_hdrchk && mi->mi_ts) {
char * msg = NULL;
int lvl;
rpmrc = (*mi->mi_hdrchk) (mi->mi_ts, hdrBlob, hdrLen, &msg);
lvl = (rpmrc == RPMRC_FAIL ? RPMLOG_ERR : RPMLOG_DEBUG);
rpmlog(lvl, "%s h#%8u %s",
(rpmrc == RPMRC_FAIL ? _("miFreeHeader: skipping") : "write"),
mi->mi_prevoffset, (msg ? msg : "\n"));
msg = _free(msg);
}
if (hdrBlob != NULL && rpmrc != RPMRC_FAIL) {
rpmsqBlock(SIG_BLOCK);
dbCtrl(mi->mi_db, DB_CTRL_LOCK_RW);
rc = pkgdbPut(dbi, mi->mi_dbc, &mi->mi_prevoffset,
hdrBlob, hdrLen);
dbCtrl(mi->mi_db, DB_CTRL_INDEXSYNC);
dbCtrl(mi->mi_db, DB_CTRL_UNLOCK_RW);
rpmsqBlock(SIG_UNBLOCK);
if (rc) {
rpmlog(RPMLOG_ERR,
_("error(%d) storing record #%d into %s\n"),
rc, mi->mi_prevoffset, dbiName(dbi));
}
}
free(hdrBlob);
}
mi->mi_h = headerFree(mi->mi_h);
return rc;
}
rpmdbMatchIterator rpmdbFreeIterator(rpmdbMatchIterator mi)
{
rpmdbMatchIterator * prev, next;
dbiIndex dbi = NULL;
int i;