---

lib/rpminstall.c

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#include "system.h"

#include "rpmcli.h"

#include "manifest.h"
#include "misc.h"       /* XXX for rpmGlob() */
#include "debug.h"

/*@access rpmTransactionSet @*/ /* XXX compared with NULL */
/*@access rpmProblemSet @*/     /* XXX compared with NULL */
/*@access Header @*/            /* XXX compared with NULL */
/*@access rpmdb @*/             /* XXX compared with NULL */
/*@access FD_t @*/              /* XXX compared with NULL */
/*@access IDTX @*/
/*@access IDT @*/

#include <sys/ioctl.h>

int     fancyPercents = 0;
 
/*@unchecked@*/
static int hashesPrinted = 0;

/*@unchecked@*/
int packagesTotal = 0;
/*@unchecked@*/
static int progressTotal = 0;
/*@unchecked@*/
static int progressCurrent = 0;

static int checkedTTY = 0;
static int countWidth = 0;
static int nameWidth = 29;
static int hashesTotal = 50;

static void checkTTY( void )
{
        struct winsize ws;

        if ( checkedTTY )
                return;

        checkedTTY = 1;

        if ( ioctl( STDOUT_FILENO, TIOCGWINSZ, (char *)&ws ) < 0 )
        {
                fancyPercents = 0;
        }
        else
        {
                int w = ws.ws_col;
                int i;
                if ( w <= 2 )
                        w = 80;

                if ( w < 39 )
                {
                        fancyPercents = 0;
                        nameWidth = w - 2;
                        hashesTotal = 1;
                        return;
                }

                if ( fancyPercents )
                {
                        w -= 6;

                        for ( i = packagesTotal; i > 0; i /= 10 )
                                ++countWidth;

                        nameWidth -= countWidth + 2;
                }

                hashesTotal = w - 30;
                if ( hashesTotal > 100 )
                {
                        nameWidth += (hashesTotal - 100 );
                        hashesTotal = 100;
                }
        }
}

static void printHash(const unsigned long amount, const unsigned long total)
        /*@globals hashesPrinted, progressCurrent, fileSystem @*/
        /*@modifies hashesPrinted, progressCurrent, fileSystem @*/
{
        checkTTY();
        if ( hashesPrinted <= hashesTotal )
        {
                int hashesNeeded = hashesTotal * (total ? (((float) amount) / total) : 1);
                while ( hashesNeeded > hashesPrinted )
                {
                        if ( fancyPercents )
                        {
                                int i;
                                for ( i = 0; i < hashesPrinted; ++i )
                                        putchar( '#' );
                                for ( ; i < hashesTotal; ++i )
                                        putchar( ' ' );
                                printf( "(%3d%%)", (int)(100 * (total ? (((float) amount) / total) : 1)) );
                                for ( i = 0; i < (hashesTotal + 6); ++i )
                                        putchar( '\b' );
                        } else
                                putchar( '#' );

                        fflush( stdout );
                        ++hashesPrinted;
                }

                fflush( stdout );
                hashesPrinted = hashesNeeded;

                if ( hashesPrinted >= hashesTotal )
                {
                        if ( fancyPercents )
                        {
                                int i;
                                ++progressCurrent;
                                for ( i = 1; i < hashesPrinted; ++i )
                                        putchar( '#' );
                                printf( " [%3d%%]\n", (int)(100 * (progressTotal ? 
                                        (((float) progressCurrent) / progressTotal) : 1))) ;
                        } else
                                putchar( '\n' );
                }

                fflush( stdout );
        }
}

void * rpmShowProgress(/*@null@*/ const void * arg,
                        const rpmCallbackType what,
                        const unsigned long amount,
                        const unsigned long total,
                        /*@null@*/ const void * pkgKey,
                        /*@null@*/ void * data)
        /*@globals hashesPrinted, progressCurrent, progressTotal,
                fileSystem @*/
        /*@modifies hashesPrinted, progressCurrent, progressTotal,
                fileSystem @*/
{
    /*@-castexpose@*/
    Header h = (Header) arg;
    /*@=castexpose@*/
    char * s;
    int flags = (int) ((long)data);
    void * rc = NULL;
    const char * filename = pkgKey;
    static FD_t fd = NULL;

    switch (what) {
    case RPMCALLBACK_INST_OPEN_FILE:
        if (filename == NULL || filename[0] == '\0')
            return NULL;
        fd = Fopen(filename, "r.ufdio");
        if (fd)
            fd = fdLink(fd, "persist (showProgress)");
        return fd;
        /*@notreached@*/ break;

    case RPMCALLBACK_INST_CLOSE_FILE:
        fd = fdFree(fd, "persist (showProgress)");
        if (fd) {
            (void) Fclose(fd);
            fd = NULL;
        }
        break;

    case RPMCALLBACK_INST_START:
        hashesPrinted = 0;
        if (h == NULL || !(flags & INSTALL_LABEL))
            break;
        if (flags & INSTALL_HASH) {
            s = headerSprintf(h, "%{NAME}",
                                rpmTagTable, rpmHeaderFormats, NULL);
            if ( fancyPercents )
                printf( "%*d: %-*.*s", countWidth, progressCurrent + 1, nameWidth, nameWidth, s );
            else
                printf("%-*.*s", nameWidth, nameWidth, s);
            (void) fflush(stdout);
            s = _free(s);
        } else {
            s = headerSprintf(h, "%{NAME}-%{VERSION}-%{RELEASE}",
                                  rpmTagTable, rpmHeaderFormats, NULL);
            fprintf(stdout, "%s\n", s);
            (void) fflush(stdout);
            s = _free(s);
        }
        break;

    case RPMCALLBACK_TRANS_PROGRESS:
    case RPMCALLBACK_INST_PROGRESS:
        if (flags & INSTALL_PERCENT)
            fprintf(stdout, "%%%% %f\n", (double) (total
                                ? ((((float) amount) / total) * 100)
                                : 100.0));
        else if (flags & INSTALL_HASH)
            printHash(amount, total);
        (void) fflush(stdout);
        break;

    case RPMCALLBACK_TRANS_START:
        hashesPrinted = 0;
        progressTotal = 1;
        progressCurrent = 0;
        if (!(flags & INSTALL_LABEL))
            break;
        if (flags & INSTALL_HASH) {
            int width;
            checkTTY();
            if ( fancyPercents )
                width = countWidth + 2 + nameWidth;
            else
                width = nameWidth;
            printf( "%-*.*s", width, width, _("Preparing...") );
        } else
            printf("%s\n", _("Preparing packages for installation..."));
        (void) fflush(stdout);
        break;

    case RPMCALLBACK_TRANS_STOP:
        if (flags & INSTALL_HASH)
            printHash(1, 1);    /* Fixes "preparing..." progress bar */
        progressTotal = packagesTotal;
        progressCurrent = 0;
        break;

    case RPMCALLBACK_UNINST_PROGRESS:
    case RPMCALLBACK_UNINST_START:
    case RPMCALLBACK_UNINST_STOP:
    case RPMCALLBACK_UNPACK_ERROR:
    case RPMCALLBACK_CPIO_ERROR:
    default:
        /* ignore */
        break;
    }

    return rc;
}       

typedef /*@only@*/ /*@null@*/ const char * str_t;

struct rpmEIU {
/*@only@*/ rpmTransactionSet ts;
/*@only@*/ /*@null@*/ rpmdb db;
    Header h;
    FD_t fd;
    int numFailed;
    int numPkgs;
/*@only@*/ str_t * pkgURL;
/*@dependent@*/ /*@null@*/ str_t * fnp;
/*@only@*/ char * pkgState;
    int prevx;
    int pkgx;
    int numRPMS;
    int numSRPMS;
/*@only@*/ /*@null@*/ str_t * sourceURL;
    int isSource;
    int argc;
/*@only@*/ /*@null@*/ str_t * argv;
/*@temp@*/ rpmRelocation * relocations;
    rpmRC rpmrc;
};

int rpmInstall(const char * rootdir, const char ** fileArgv,
                rpmtransFlags transFlags,
                rpmInstallInterfaceFlags interfaceFlags,
                rpmprobFilterFlags probFilter,
                rpmRelocation * relocations)
{
    struct rpmEIU * eiu = alloca(sizeof(*eiu));
    int notifyFlags = interfaceFlags | (rpmIsVerbose() ? INSTALL_LABEL : 0 );
    /*@only@*/ /*@null@*/ const char * fileURL = NULL;
    int stopInstall = 0;
    const char ** av = NULL;
    int ac = 0;
    int rc;
    int xx;
    int i;

    if (fileArgv == NULL) return 0;

    memset(eiu, 0, sizeof(*eiu));
    eiu->numPkgs = 0;
    eiu->prevx = 0;
    eiu->pkgx = 0;

    if ((eiu->relocations = relocations) != NULL) {
        while (eiu->relocations->oldPath)
            eiu->relocations++;
        if (eiu->relocations->newPath == NULL)
            eiu->relocations = NULL;
    }

    /* Build fully globbed list of arguments in argv[argc]. */
    /*@-branchstate@*/
    /*@-temptrans@*/
    for (eiu->fnp = fileArgv; *eiu->fnp != NULL; eiu->fnp++) {
    /*@=temptrans@*/
        av = _free(av); ac = 0;
        rc = rpmGlob(*eiu->fnp, &ac, &av);
        if (rc || ac == 0) continue;

        eiu->argv = xrealloc(eiu->argv, (eiu->argc+ac+1) * sizeof(*eiu->argv));
        memcpy(eiu->argv+eiu->argc, av, ac * sizeof(*av));
        eiu->argc += ac;
        eiu->argv[eiu->argc] = NULL;
    }
    /*@=branchstate@*/
    av = _free(av);     ac = 0;

restart:
    /* Allocate sufficient storage for next set of args. */
    if (eiu->pkgx >= eiu->numPkgs) {
        eiu->numPkgs = eiu->pkgx + eiu->argc;
        eiu->pkgURL = xrealloc(eiu->pkgURL,
                        (eiu->numPkgs + 1) * sizeof(*eiu->pkgURL));
        memset(eiu->pkgURL + eiu->pkgx, 0,
                        ((eiu->argc + 1) * sizeof(*eiu->pkgURL)));
        eiu->pkgState = xrealloc(eiu->pkgState,
                        (eiu->numPkgs + 1) * sizeof(*eiu->pkgState));
        memset(eiu->pkgState + eiu->pkgx, 0,
                        ((eiu->argc + 1) * sizeof(*eiu->pkgState)));
    }

    /* Retrieve next set of args, cache on local storage. */
    for (i = 0; i < eiu->argc; i++) {
        fileURL = _free(fileURL);
        fileURL = eiu->argv[i];
        eiu->argv[i] = NULL;

        switch (urlIsURL(fileURL)) {
        case URL_IS_FTP:
        case URL_IS_HTTP:
        {   const char *tfn;

            if (rpmIsVerbose())
                fprintf(stdout, _("Retrieving %s\n"), fileURL);

            {   char tfnbuf[64];
                strcpy(tfnbuf, "rpm-xfer.XXXXXX");
                (void) mktemp(tfnbuf);
                tfn = rpmGenPath(rootdir, "%{_tmppath}/", tfnbuf);
            }

            /* XXX undefined %{name}/%{version}/%{release} here */
            /* XXX %{_tmpdir} does not exist */
            rpmMessage(RPMMESS_DEBUG, _(" ... as %s\n"), tfn);
            rc = urlGetFile(fileURL, tfn);
            if (rc < 0) {
                rpmMessage(RPMMESS_ERROR,
                        _("skipping %s - transfer failed - %s\n"),
                        fileURL, ftpStrerror(rc));
                eiu->numFailed++;
                eiu->pkgURL[eiu->pkgx] = NULL;
                tfn = _free(tfn);
                /*@switchbreak@*/ break;
            }
            eiu->pkgState[eiu->pkgx] = 1;
            eiu->pkgURL[eiu->pkgx] = tfn;
            eiu->pkgx++;
        }   /*@switchbreak@*/ break;
        case URL_IS_PATH:
        default:
            eiu->pkgURL[eiu->pkgx] = fileURL;
            fileURL = NULL;
            eiu->pkgx++;
            /*@switchbreak@*/ break;
        }
    }
    fileURL = _free(fileURL);

    if (eiu->numFailed) goto exit;

    /* Continue processing file arguments, building transaction set. */
    for (eiu->fnp = eiu->pkgURL+eiu->prevx;
         *eiu->fnp != NULL;
         eiu->fnp++, eiu->prevx++)
    {
        const char * fileName;

        rpmMessage(RPMMESS_DEBUG, "============== %s\n", *eiu->fnp);
        (void) urlPath(*eiu->fnp, &fileName);

        /* Try to read the header from a package file. */
        eiu->fd = Fopen(*eiu->fnp, "r.ufdio");
        if (eiu->fd == NULL || Ferror(eiu->fd)) {
            rpmError(RPMERR_OPEN, _("open of %s failed: %s\n"), *eiu->fnp,
                        Fstrerror(eiu->fd));
            if (eiu->fd) {
                xx = Fclose(eiu->fd);
                eiu->fd = NULL;
            }
            eiu->numFailed++; *eiu->fnp = NULL;
            continue;
        }

        /*@-mustmod@*/  /* LCL: segfault */
        eiu->rpmrc = rpmReadPackageHeader(eiu->fd, &eiu->h,
                                &eiu->isSource, NULL, NULL);
        /*@=mustmod@*/
        xx = Fclose(eiu->fd);
        eiu->fd = NULL;

        if (eiu->rpmrc == RPMRC_FAIL || eiu->rpmrc == RPMRC_SHORTREAD) {
            eiu->numFailed++; *eiu->fnp = NULL;
            continue;
        }

        if (eiu->isSource &&
                (eiu->rpmrc == RPMRC_OK || eiu->rpmrc == RPMRC_BADSIZE))
        {
            rpmMessage(RPMMESS_DEBUG, "\tadded source package [%d]\n",
                eiu->numSRPMS);
            eiu->sourceURL = xrealloc(eiu->sourceURL,
                                (eiu->numSRPMS + 2) * sizeof(*eiu->sourceURL));
            eiu->sourceURL[eiu->numSRPMS] = *eiu->fnp;
            *eiu->fnp = NULL;
            eiu->numSRPMS++;
            eiu->sourceURL[eiu->numSRPMS] = NULL;
            continue;
        }

        if (eiu->rpmrc == RPMRC_OK || eiu->rpmrc == RPMRC_BADSIZE) {
            if (eiu->db == NULL) {
                int mode = (transFlags & RPMTRANS_FLAG_TEST)
                                ? O_RDONLY : (O_RDWR | O_CREAT);

                if (rpmdbOpen(rootdir, &eiu->db, mode, 0644)) {
                    const char *dn;
                    dn = rpmGetPath( (rootdir ? rootdir : ""),
                                        "%{_dbpath}", NULL);
                    rpmMessage(RPMMESS_ERROR,
                                _("cannot open Packages database in %s\n"), dn);
                    dn = _free(dn);
                    eiu->numFailed++; *eiu->fnp = NULL;
                    break;
                }
                /*@-onlytrans@*/
                eiu->ts = rpmtransCreateSet(eiu->db, rootdir);
                /*@=onlytrans@*/
            }

            if (eiu->relocations) {
                const char ** paths;
                int pft;
                int c;

                if (headerGetEntry(eiu->h, RPMTAG_PREFIXES, &pft,
                                       (void **) &paths, &c) && (c == 1)) {
                    eiu->relocations->oldPath = xstrdup(paths[0]);
                    paths = headerFreeData(paths, pft);
                } else {
                    const char * name;
                    xx = headerNVR(eiu->h, &name, NULL, NULL);
                    rpmMessage(RPMMESS_ERROR,
                               _("package %s is not relocateable\n"), name);
                    eiu->numFailed++;
                    goto exit;
                    /*@notreached@*/
                }
            }

            /* On --freshen, verify package is installed and newer */
            if (interfaceFlags & INSTALL_FRESHEN) {
                rpmdbMatchIterator mi;
                const char * name;
                Header oldH;
                int count;

                xx = headerNVR(eiu->h, &name, NULL, NULL);
                /*@-onlytrans@*/
                mi = rpmdbInitIterator(eiu->db, RPMTAG_NAME, name, 0);
                /*@=onlytrans@*/
                count = rpmdbGetIteratorCount(mi);
                while ((oldH = rpmdbNextIterator(mi)) != NULL) {
                    if (rpmVersionCompare(oldH, eiu->h) < 0)
                        /*@innercontinue@*/ continue;
                    /* same or newer package already installed */
                    count = 0;
                    /*@innerbreak@*/ break;
                }
                mi = rpmdbFreeIterator(mi);
                if (count == 0) {
                    eiu->h = headerFree(eiu->h);
                    continue;
                }
                /* Package is newer than those currently installed. */
            }

            rc = rpmtransAddPackage(eiu->ts, eiu->h, NULL, fileName,
                               (interfaceFlags & INSTALL_UPGRADE) != 0,
                               relocations);
            /* XXX reference held by transaction set */
            eiu->h = headerFree(eiu->h);
            if (eiu->relocations)
                eiu->relocations->oldPath = _free(eiu->relocations->oldPath);

            switch(rc) {
            case 0:
                rpmMessage(RPMMESS_DEBUG, "\tadded binary package [%d]\n",
                        eiu->numRPMS);
                /*@switchbreak@*/ break;
            case 1:
                rpmMessage(RPMMESS_ERROR,
                            _("error reading from file %s\n"), *eiu->fnp);
                eiu->numFailed++;
                goto exit;
                /*@notreached@*/ /*@switchbreak@*/ break;
            case 2:
                rpmMessage(RPMMESS_ERROR,
                            _("file %s requires a newer version of RPM\n"),
                            *eiu->fnp);
                eiu->numFailed++;
                goto exit;
                /*@notreached@*/ /*@switchbreak@*/ break;
            }

            eiu->numRPMS++;
            continue;
        }

        if (eiu->rpmrc != RPMRC_BADMAGIC) {
            rpmMessage(RPMMESS_ERROR, _("%s cannot be installed\n"), *eiu->fnp);
            eiu->numFailed++; *eiu->fnp = NULL;
            break;
        }

        /* Try to read a package manifest. */
        eiu->fd = Fopen(*eiu->fnp, "r.fpio");
        if (eiu->fd == NULL || Ferror(eiu->fd)) {
            rpmError(RPMERR_OPEN, _("open of %s failed: %s\n"), *eiu->fnp,
                        Fstrerror(eiu->fd));
            if (eiu->fd) {
                xx = Fclose(eiu->fd);
                eiu->fd = NULL;
            }
            eiu->numFailed++; *eiu->fnp = NULL;
            break;
        }

        /* Read list of packages from manifest. */
        rc = rpmReadPackageManifest(eiu->fd, &eiu->argc, &eiu->argv);
        if (rc)
            rpmError(RPMERR_MANIFEST, _("%s: read manifest failed: %s\n"),
                        *eiu->fnp, Fstrerror(eiu->fd));
        xx = Fclose(eiu->fd);
        eiu->fd = NULL;

        /* If successful, restart the query loop. */
        if (rc == 0) {
            eiu->prevx++;
            goto restart;
        }

        eiu->numFailed++; *eiu->fnp = NULL;
        break;
    }

    rpmMessage(RPMMESS_DEBUG, _("found %d source and %d binary packages\n"),
                eiu->numSRPMS, eiu->numRPMS);

    if (eiu->numFailed) goto exit;

    if (eiu->numRPMS && !(interfaceFlags & INSTALL_NODEPS)) {
        rpmDependencyConflict conflicts;
        int numConflicts;

        if (rpmdepCheck(eiu->ts, &conflicts, &numConflicts)) {
            eiu->numFailed = eiu->numPkgs;
            stopInstall = 1;
        }

        /*@-branchstate@*/
        if (!stopInstall && conflicts) {
            rpmMessage(RPMMESS_ERROR, _("failed dependencies:\n"));
            printDepProblems(stderr, conflicts, numConflicts);
            conflicts = rpmdepFreeConflicts(conflicts, numConflicts);
            eiu->numFailed = eiu->numPkgs;
            stopInstall = 1;
        }
        /*@=branchstate@*/
    }

    if (eiu->numRPMS && !(interfaceFlags & INSTALL_NOORDER)) {
        if (rpmdepOrder(eiu->ts)) {
            eiu->numFailed = eiu->numPkgs;
            stopInstall = 1;
        }
    }

    if (eiu->numRPMS && !stopInstall) {
        rpmProblemSet probs = NULL;

        packagesTotal = eiu->numRPMS + eiu->numSRPMS;

        rpmMessage(RPMMESS_DEBUG, _("installing binary packages\n"));
        rc = rpmRunTransactions(eiu->ts, rpmShowProgress,
                        (void *) ((long)notifyFlags),
                        NULL, &probs, transFlags, probFilter);

        if (rc < 0) {
            eiu->numFailed += eiu->numRPMS;
        } else if (rc > 0) {
            eiu->numFailed += rc;
            rpmProblemSetPrint(stderr, probs);
        }

        if (probs != NULL) rpmProblemSetFree(probs);
    }

    if (eiu->numSRPMS && !stopInstall) {
        if (eiu->sourceURL != NULL)
        for (i = 0; i < eiu->numSRPMS; i++) {
            if (eiu->sourceURL[i] == NULL) continue;
            eiu->fd = Fopen(eiu->sourceURL[i], "r.ufdio");
            if (eiu->fd == NULL || Ferror(eiu->fd)) {
                rpmMessage(RPMMESS_ERROR, _("cannot open file %s: %s\n"),
                           eiu->sourceURL[i], Fstrerror(eiu->fd));
                if (eiu->fd) {
                    xx = Fclose(eiu->fd);
                    eiu->fd = NULL;
                }
                continue;
            }

            if (!(transFlags & RPMTRANS_FLAG_TEST)) {
                eiu->rpmrc = rpmInstallSourcePackage(rootdir, eiu->fd, NULL,
                        rpmShowProgress, (void *) ((long)notifyFlags), NULL);
                if (eiu->rpmrc != RPMRC_OK) eiu->numFailed++;
            }

            xx = Fclose(eiu->fd);
            eiu->fd = NULL;
        }
    }

exit:
    eiu->ts = rpmtransFree(eiu->ts);
    if (eiu->pkgURL != NULL)
    for (i = 0; i < eiu->numPkgs; i++) {
        if (eiu->pkgURL[i] == NULL) continue;
        if (eiu->pkgState[i] == 1)
            (void) Unlink(eiu->pkgURL[i]);
        eiu->pkgURL[i] = _free(eiu->pkgURL[i]);
    }
    eiu->pkgState = _free(eiu->pkgState);
    eiu->pkgURL = _free(eiu->pkgURL);
    eiu->argv = _free(eiu->argv);
    if (eiu->db != NULL) {
        xx = rpmdbClose(eiu->db);
        eiu->db = NULL;
    }
    return eiu->numFailed;
}

int rpmErase(const char * rootdir, const char ** argv,
                rpmtransFlags transFlags,
                rpmEraseInterfaceFlags interfaceFlags)
{
    rpmdb db;
    int mode;
    int count;
    const char ** arg;
    int numFailed = 0;
    rpmTransactionSet ts;
    rpmDependencyConflict conflicts;
    int numConflicts;
    int stopUninstall = 0;
    int numPackages = 0;
    rpmProblemSet probs;

    if (argv == NULL) return 0;

    if (transFlags & RPMTRANS_FLAG_TEST)
        mode = O_RDONLY;
    else
        mode = O_RDWR | O_EXCL;
        
    if (rpmdbOpen(rootdir, &db, mode, 0644)) {
        const char *dn;
        dn = rpmGetPath( (rootdir ? rootdir : ""), "%{_dbpath}", NULL);
        rpmMessage(RPMMESS_ERROR, _("cannot open %s/packages.rpm\n"), dn);
        dn = _free(dn);
        return -1;
    }

    ts = rpmtransCreateSet(db, rootdir);
    for (arg = argv; *arg; arg++) {
        rpmdbMatchIterator mi;

        /* XXX HACK to get rpmdbFindByLabel out of the API */
        mi = rpmdbInitIterator(db, RPMDBI_LABEL, *arg, 0);
        count = rpmdbGetIteratorCount(mi);
        if (count <= 0) {
            rpmMessage(RPMMESS_ERROR, _("package %s is not installed\n"), *arg);
            numFailed++;
        } else if (!(count == 1 || (interfaceFlags & UNINSTALL_ALLMATCHES))) {
            rpmMessage(RPMMESS_ERROR, _("\"%s\" specifies multiple packages\n"),
                        *arg);
            numFailed++;
        } else {
            Header h;   /* XXX iterator owns the reference */
            while ((h = rpmdbNextIterator(mi)) != NULL) {
                unsigned int recOffset = rpmdbGetIteratorOffset(mi);
                if (recOffset) {
                    (void) rpmtransRemovePackage(ts, recOffset);
                    numPackages++;
                }
            }
        }
        mi = rpmdbFreeIterator(mi);
    }

    if (!(interfaceFlags & UNINSTALL_NODEPS)) {
        if (rpmdepCheck(ts, &conflicts, &numConflicts)) {
            numFailed = numPackages;
            stopUninstall = 1;
        }

        /*@-branchstate@*/
        if (!stopUninstall && conflicts) {
            rpmMessage(RPMMESS_ERROR, _("removing these packages would break "
                              "dependencies:\n"));
            printDepProblems(stderr, conflicts, numConflicts);
            conflicts = rpmdepFreeConflicts(conflicts, numConflicts);
            numFailed += numPackages;
            stopUninstall = 1;
        }
        /*@=branchstate@*/
    }

    if (!stopUninstall) {
        transFlags |= RPMTRANS_FLAG_REVERSE;
        numFailed += rpmRunTransactions(ts, NULL, NULL, NULL, &probs,
                                        transFlags, 0);
    }

    ts = rpmtransFree(ts);
    (void) rpmdbClose(db);

    return numFailed;
}

int rpmInstallSource(const char * rootdir, const char * arg,
                const char ** specFile, char ** cookie)
{
    FD_t fd;
    int rc;

    fd = Fopen(arg, "r.ufdio");
    if (fd == NULL || Ferror(fd)) {
        rpmMessage(RPMMESS_ERROR, _("cannot open %s: %s\n"), arg, Fstrerror(fd));
        if (fd) (void) Fclose(fd);
        return 1;
    }

    if (rpmIsVerbose())
        fprintf(stdout, _("Installing %s\n"), arg);

    {
        /*@-mayaliasunique@*/
        rpmRC rpmrc = rpmInstallSourcePackage(rootdir, fd, specFile, NULL, NULL,
                                 cookie);
        /*@=mayaliasunique@*/
        rc = (rpmrc == RPMRC_OK ? 0 : 1);
    }
    if (rc != 0) {
        rpmMessage(RPMMESS_ERROR, _("%s cannot be installed\n"), arg);
        /*@-unqualifiedtrans@*/
        if (specFile && *specFile)
            *specFile = _free(*specFile);
        if (cookie && *cookie)
            *cookie = _free(*cookie);
        /*@=unqualifiedtrans@*/
    }

    (void) Fclose(fd);

    return rc;
}

/*@unchecked@*/
static int reverse = -1;

static int IDTintcmp(const void * a, const void * b)
        /*@*/
{
    /*@-castexpose@*/
    IDT ap = (IDT)a;
    IDT bp = (IDT)b;
    /*@=castexpose@*/
    int rc = ((int)ap->val.u32 - (int)bp->val.u32);

    if (rc)
        return ( reverse * rc );
    return ( strcmp(ap->n, bp->n) );
}

IDTX IDTXfree(IDTX idtx)
{
    if (idtx) {
        int i;
        if (idtx->idt)
        for (i = 0; i < idtx->nidt; i++) {
            IDT idt = idtx->idt + i;
            idt->h = headerFree(idt->h);
            idt->key = _free(idt->key);
        }
        idtx->idt = _free(idtx->idt);
        idtx = _free(idtx);
    }
    return NULL;
}

IDTX IDTXnew(void)
{
    IDTX idtx = xcalloc(1, sizeof(*idtx));
    idtx->delta = 10;
    idtx->size = sizeof(*((IDT)0));
    return idtx;
}

IDTX IDTXgrow(IDTX idtx, int need)
{
    if (need < 0) return NULL;
    if (idtx == NULL)
        idtx = IDTXnew();
    if (need == 0) return idtx;

    if ((idtx->nidt + need) > idtx->alloced) {
        while (need > 0) {
            idtx->alloced += idtx->delta;
            need -= idtx->delta;
        }
        idtx->idt = xrealloc(idtx->idt, (idtx->alloced * idtx->size) );
    }
    return idtx;
}

IDTX IDTXsort(IDTX idtx)
{
    if (idtx != NULL && idtx->idt != NULL && idtx->nidt > 0)
        qsort(idtx->idt, idtx->nidt, idtx->size, IDTintcmp);
    return idtx;
}

IDTX IDTXload(rpmdb db, rpmTag tag)
{
    IDTX idtx = NULL;
    rpmdbMatchIterator mi;
    HGE_t hge = (HGE_t) headerGetEntry;
    Header h;

    mi = rpmdbInitIterator(db, tag, NULL, 0);
    /*@-branchstate@*/
    while ((h = rpmdbNextIterator(mi)) != NULL) {
        rpmTagType type = RPM_NULL_TYPE;
        int_32 count = 0;
        int_32 * tidp;

        tidp = NULL;
        if (!hge(h, tag, &type, (void **)&tidp, &count) || tidp == NULL)
            continue;

        if (type == RPM_INT32_TYPE && (*tidp == 0 || *tidp == -1))
            continue;

        idtx = IDTXgrow(idtx, 1);
        if (idtx == NULL)
            continue;
        if (idtx->idt == NULL)
            continue;

        {   IDT idt;
            /*@-nullderef@*/
            idt = idtx->idt + idtx->nidt;
            /*@=nullderef@*/
            idt->h = headerLink(h);
            (void) headerNVR(idt->h, &idt->n, &idt->v, &idt->r);
            idt->key = NULL;
            idt->instance = rpmdbGetIteratorOffset(mi);
            idt->val.u32 = *tidp;
        }
        idtx->nidt++;
    }
    /*@=branchstate@*/
    mi = rpmdbFreeIterator(mi);

    return IDTXsort(idtx);
}

IDTX IDTXglob(const char * globstr, rpmTag tag)
{
    IDTX idtx = NULL;
    HGE_t hge = (HGE_t) headerGetEntry;
    Header h;
    int_32 * tidp;
    FD_t fd;
    const char ** av = NULL;
    int ac = 0;
    int rc;
    int i;

    av = NULL;  ac = 0;
    rc = rpmGlob(globstr, &ac, &av);

    if (rc == 0)
    for (i = 0; i < ac; i++) {
        rpmTagType type;
        int_32 count;
        int isSource;
        rpmRC rpmrc;

        fd = Fopen(av[i], "r.ufdio");
        if (fd == NULL || Ferror(fd)) {
            rpmError(RPMERR_OPEN, _("open of %s failed: %s\n"), av[i],
                        Fstrerror(fd));
            if (fd) (void) Fclose(fd);
            continue;
        }

        /*@-mustmod@*/  /* LCL: segfault */
        rpmrc = rpmReadPackageHeader(fd, &h, &isSource, NULL, NULL);
        /*@=mustmod@*/
        if (rpmrc != RPMRC_OK || isSource) {
            (void) Fclose(fd);
            continue;
        }

        tidp = NULL;
        /*@-branchstate@*/
        if (hge(h, tag, &type, (void **) &tidp, &count) && tidp) {

            idtx = IDTXgrow(idtx, 1);
            if (idtx == NULL || idtx->idt == NULL) {
                h = headerFree(h);
                (void) Fclose(fd);
                continue;
            }
            {   IDT idt;
                idt = idtx->idt + idtx->nidt;
                idt->h = headerLink(h);
                (void) headerNVR(idt->h, &idt->n, &idt->v, &idt->r);
                idt->key = xstrdup(av[i]);
                idt->instance = 0;
                idt->val.u32 = *tidp;
            }
            idtx->nidt++;
        }
        /*@=branchstate@*/

        h = headerFree(h);
        (void) Fclose(fd);
    }

    for (i = 0; i < ac; i++)
        av[i] = _free(av[i]);
    av = _free(av);     ac = 0;

    return IDTXsort(idtx);
}

int rpmRollback(struct rpmInstallArguments_s * ia, const char ** argv)
{
    rpmdb db = NULL;
    rpmTransactionSet ts = NULL;
    rpmDependencyConflict conflicts = NULL;
    int numConflicts = 0;
    rpmProblemSet probs = NULL;
    IDTX itids = NULL;
    IDTX rtids = NULL;
    unsigned thistid = 0xffffffff;
    unsigned prevtid;
    time_t tid;
    IDT rp;
    int nrids = 0;
    IDT ip;
    int niids = 0;
    int packagesIn;
    int packagesOut;
    int rc;
    int i;
    int ifmask= (INSTALL_UPGRADE|INSTALL_FRESHEN|INSTALL_INSTALL|INSTALL_ERASE);

    if (argv != NULL && *argv != NULL) {
        rc = -1;
        goto exit;
    }

    rc = rpmdbOpen(ia->rootdir, &db, O_RDWR, 0644);
    if (rc != 0)
        goto exit;

    itids = IDTXload(db, RPMTAG_INSTALLTID);
    if (itids != NULL) {
        ip = itids->idt;
        niids = itids->nidt;
    } else {
        ip = NULL;
        niids = 0;
    }

    {   const char * globstr = rpmExpand("%{_repackage_dir}/*.rpm", NULL);
        if (globstr == NULL || *globstr == '%') {
            globstr = _free(globstr);
            rc = -1;
            goto exit;
        }
        rtids = IDTXglob(globstr, RPMTAG_REMOVETID);
        if (rtids != NULL) {
            rp = rtids->idt;
            nrids = rtids->nidt;
        } else {
            rp = NULL;
            nrids = 0;
        }
        globstr = _free(globstr);
    }

    /* Run transactions until rollback goal is achieved. */
    do {
        prevtid = thistid;
        rc = 0;
        packagesTotal = 0;
        packagesIn = 0;
        packagesOut = 0;
        ia->installInterfaceFlags &= ~ifmask;

        /* Find larger of the remaining install/erase transaction id's. */
        thistid = 0;
        if (ip != NULL && ip->val.u32 > thistid)
            thistid = ip->val.u32;
        if (rp != NULL && rp->val.u32 > thistid)
            thistid = rp->val.u32;

        /* If we've achieved the rollback goal, then we're done. */
        if (thistid == 0 || thistid < ia->rbtid)
            break;

        ts = rpmtransCreateSet(db, ia->rootdir);

        /* Install the previously erased packages for this transaction. */
        while (rp != NULL && rp->val.u32 == thistid) {

            rpmMessage(RPMMESS_DEBUG, "\t+++ %s-%s-%s\t(from %s)\n", rp->n, rp->v, rp->r, basename(rp->key));

            if (!(ia->installInterfaceFlags & ifmask))
                ia->installInterfaceFlags |= INSTALL_INSTALL;

            rc = rpmtransAddPackage(ts, rp->h, NULL, rp->key,
                        (ia->installInterfaceFlags & INSTALL_UPGRADE) != 0,
                        ia->relocations);
            if (rc != 0)
                goto exit;

            packagesTotal++;
            packagesIn++;

#ifdef  NOTYET
            rp->h = headerFree(rp->h);
#endif
            nrids--;
            if (nrids > 0)
                rp++;
            else
                rp = NULL;
        }

        /*
         * XXX OK, let's prevent disaster right here, as rollbacks will merrily
         * XXX erase everything in order to achieve the desired goal.
         */
        if (packagesIn == 0)
            break;

        /* Erase the previously installed packages for this transaction. */
        while (ip != NULL && ip->val.u32 == thistid) {

            rpmMessage(RPMMESS_DEBUG,
                        "\t--- %s-%s-%s\t(from rpmdb instance #%u)\n", ip->n, ip->v, ip->r, ip->instance);

            if (!(ia->installInterfaceFlags & ifmask))
                ia->installInterfaceFlags |= INSTALL_ERASE;

            rc = rpmtransRemovePackage(ts, ip->instance);
            if (rc != 0)
                goto exit;

            packagesTotal++;
            packagesOut++;

#ifdef  NOTYET
            ip->instance = 0;
#endif
            niids--;
            if (niids > 0)
                ip++;
            else
                ip = NULL;
        }

        /* Anything to do? */
        if (packagesTotal <= 0)
            break;

        tid = (time_t)thistid;
        rpmMessage(RPMMESS_DEBUG, _("rollback (+%d,-%d) packages to %s"),
                        packagesIn, packagesOut, ctime(&tid));

        conflicts = NULL;
        numConflicts = 0;
        rc = rpmdepCheck(ts, &conflicts, &numConflicts);
        if (rc != 0) {
            rpmMessage(RPMMESS_ERROR, _("failed dependencies:\n"));
            printDepProblems(stderr, conflicts, numConflicts);
            conflicts = rpmdepFreeConflicts(conflicts, numConflicts);
            goto exit;
        }

        rc = rpmdepOrder(ts);
        if (rc != 0)
            goto exit;

        probs = NULL;
        rc = rpmRunTransactions(ts,  rpmShowProgress,
                (void *) ((long)ia->installInterfaceFlags),
                NULL, &probs, ia->transFlags,
                (ia->probFilter|RPMPROB_FILTER_OLDPACKAGE));
        if (rc > 0) {
            rpmProblemSetPrint(stderr, probs);
            if (probs != NULL) rpmProblemSetFree(probs);
            probs = NULL;
        }
        if (rc)
            goto exit;

        ts = rpmtransFree(ts);

        /* Clean up after successful rollback. */
        if (!rpmIsDebug())
        for (i = 0; i < rtids->nidt; i++) {
            IDT rrp = rtids->idt + i;
            if (rrp->val.u32 != thistid)
                continue;
            (void) unlink(rrp->key);
        }

    } while (1);

exit:
    ts = rpmtransFree(ts);

    if (db != NULL) (void) rpmdbClose(db);

    rtids = IDTXfree(rtids);
    itids = IDTXfree(itids);

    return rc;
}

---