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unzip-6.0/extract.c  view on Meta::CPAN

                            if (fn_matched)
                                fn_matched[i] = TRUE;
                            break;       /* found match, so stop looping */
                        }
                }
                if (do_this_file) {  /* check if this is an excluded file */
                    for (i = 0; i < G.xfilespecs; i++)
                        if (match(G.filename, G.pxnames[i], uO.C_flag WISEP)) {
                            do_this_file = FALSE; /* ^-- ignore case or not? */
                            if (xn_matched)
                                xn_matched[i] = TRUE;
                            break;
                        }
                }
                if (do_this_file) {
                    if (store_info(__G))
                        ++j;            /* file is OK */
                    else
                        ++num_skipped;  /* unsupp. compression or encryption */
                }
            } /* end if (process_all_files) */

            members_processed++;

        } /* end while-loop (adding files to current block) */

        /* save position in central directory so can come back later */
        cd_bufstart = G.cur_zipfile_bufstart;
        cd_inptr = G.inptr;
        cd_incnt = G.incnt;

    /*-----------------------------------------------------------------------
        Second loop:  process files in current block, extracting or testing
        each one.
      -----------------------------------------------------------------------*/

        error = extract_or_test_entrylist(__G__ j,
                        &filnum, &num_bad_pwd, &old_extra_bytes,
#ifdef SET_DIR_ATTRIB
                        &num_dirs, &dirlist,
#endif
                        error_in_archive);
        if (error != PK_COOL) {
            if (error > error_in_archive)
                error_in_archive = error;
            /* ...and keep going (unless disk full or user break) */
            if (G.disk_full > 1 || error_in_archive == IZ_CTRLC) {
                /* clear reached_end to signal premature stop ... */
                reached_end = FALSE;
                /* ... and cancel scanning the central directory */
                break;
            }
        }


        /*
         * Jump back to where we were in the central directory, then go and do
         * the next batch of files.
         */

#ifdef USE_STRM_INPUT
        zfseeko(G.zipfd, cd_bufstart, SEEK_SET);
        G.cur_zipfile_bufstart = zftello(G.zipfd);
#else /* !USE_STRM_INPUT */
        G.cur_zipfile_bufstart =
          zlseek(G.zipfd, cd_bufstart, SEEK_SET);
#endif /* ?USE_STRM_INPUT */
        read(G.zipfd, (char *)G.inbuf, INBUFSIZ);  /* been here before... */
        G.inptr = cd_inptr;
        G.incnt = cd_incnt;
        ++blknum;

#ifdef TEST
        printf("\ncd_bufstart = %ld (%.8lXh)\n", cd_bufstart, cd_bufstart);
        printf("cur_zipfile_bufstart = %ld (%.8lXh)\n", cur_zipfile_bufstart,
          cur_zipfile_bufstart);
        printf("inptr-inbuf = %d\n", G.inptr-G.inbuf);
        printf("incnt = %d\n\n", G.incnt);
#endif

    } /* end while-loop (blocks of files in central directory) */

/*---------------------------------------------------------------------------
    Process the list of deferred symlink extractions and finish up
    the symbolic links.
  ---------------------------------------------------------------------------*/

#ifdef SYMLINKS
    if (G.slink_last != NULL) {
        if (QCOND2)
            Info(slide, 0, ((char *)slide, LoadFarString(SymLnkDeferred)));
        while (G.slink_head != NULL) {
           set_deferred_symlink(__G__ G.slink_head);
           /* remove the processed entry from the chain and free its memory */
           G.slink_last = G.slink_head;
           G.slink_head = G.slink_last->next;
           free(G.slink_last);
       }
       G.slink_last = NULL;
    }
#endif /* SYMLINKS */

/*---------------------------------------------------------------------------
    Go back through saved list of directories, sort and set times/perms/UIDs
    and GIDs from the deepest level on up.
  ---------------------------------------------------------------------------*/

#ifdef SET_DIR_ATTRIB
    if (num_dirs > 0) {
        sorted_dirlist = (direntry **)malloc(num_dirs*sizeof(direntry *));
        if (sorted_dirlist == (direntry **)NULL) {
            Info(slide, 0x401, ((char *)slide,
              LoadFarString(DirlistSortNoMem)));
            while (dirlist != (direntry *)NULL) {
                direntry *d = dirlist;

                dirlist = dirlist->next;
                free(d);
            }
        } else {
            ulg ndirs_fail = 0;

            if (num_dirs == 1)
                sorted_dirlist[0] = dirlist;
            else {
                for (i = 0;  i < num_dirs;  ++i) {
                    sorted_dirlist[i] = dirlist;

unzip-6.0/extract.c  view on Meta::CPAN

        Second loop:  process files in current block, extracting or testing
        each one.
      -----------------------------------------------------------------------*/

    for (i = 0; i < numchunk; ++i) {
        (*pfilnum)++;   /* *pfilnum = i + blknum*DIR_BLKSIZ + 1; */
        G.pInfo = &G.info[i];
#ifdef NOVELL_BUG_FAILSAFE
        G.dne = FALSE;  /* assume file exists until stat() says otherwise */
#endif

        /* if the target position is not within the current input buffer
         * (either haven't yet read far enough, or (maybe) skipping back-
         * ward), skip to the target position and reset readbuf(). */

        /* seek_zipf(__G__ pInfo->offset);  */
        request = G.pInfo->offset + G.extra_bytes;
        inbuf_offset = request % INBUFSIZ;
        bufstart = request - inbuf_offset;

        Trace((stderr, "\ndebug: request = %ld, inbuf_offset = %ld\n",
          (long)request, (long)inbuf_offset));
        Trace((stderr,
          "debug: bufstart = %ld, cur_zipfile_bufstart = %ld\n",
          (long)bufstart, (long)G.cur_zipfile_bufstart));
        if (request < 0) {
            Info(slide, 0x401, ((char *)slide, LoadFarStringSmall(SeekMsg),
              G.zipfn, LoadFarString(ReportMsg)));
            error_in_archive = PK_ERR;
            if (*pfilnum == 1 && G.extra_bytes != 0L) {
                Info(slide, 0x401, ((char *)slide,
                  LoadFarString(AttemptRecompensate)));
                *pold_extra_bytes = G.extra_bytes;
                G.extra_bytes = 0L;
                request = G.pInfo->offset;  /* could also check if != 0 */
                inbuf_offset = request % INBUFSIZ;
                bufstart = request - inbuf_offset;
                Trace((stderr, "debug: request = %ld, inbuf_offset = %ld\n",
                  (long)request, (long)inbuf_offset));
                Trace((stderr,
                  "debug: bufstart = %ld, cur_zipfile_bufstart = %ld\n",
                  (long)bufstart, (long)G.cur_zipfile_bufstart));
                /* try again */
                if (request < 0) {
                    Trace((stderr,
                      "debug: recompensated request still < 0\n"));
                    Info(slide, 0x401, ((char *)slide,
                      LoadFarStringSmall(SeekMsg),
                      G.zipfn, LoadFarString(ReportMsg)));
                    error_in_archive = PK_BADERR;
                    continue;
                }
            } else {
                error_in_archive = PK_BADERR;
                continue;  /* this one hosed; try next */
            }
        }

        if (bufstart != G.cur_zipfile_bufstart) {
            Trace((stderr, "debug: bufstart != cur_zipfile_bufstart\n"));
#ifdef USE_STRM_INPUT
            zfseeko(G.zipfd, bufstart, SEEK_SET);
            G.cur_zipfile_bufstart = zftello(G.zipfd);
#else /* !USE_STRM_INPUT */
            G.cur_zipfile_bufstart =
              zlseek(G.zipfd, bufstart, SEEK_SET);
#endif /* ?USE_STRM_INPUT */
            if ((G.incnt = read(G.zipfd, (char *)G.inbuf, INBUFSIZ)) <= 0)
            {
                Info(slide, 0x401, ((char *)slide, LoadFarString(OffsetMsg),
                  *pfilnum, "lseek", (long)bufstart));
                error_in_archive = PK_BADERR;
                continue;   /* can still do next file */
            }
            G.inptr = G.inbuf + (int)inbuf_offset;
            G.incnt -= (int)inbuf_offset;
        } else {
            G.incnt += (int)(G.inptr-G.inbuf) - (int)inbuf_offset;
            G.inptr = G.inbuf + (int)inbuf_offset;
        }

        /* should be in proper position now, so check for sig */
        if (readbuf(__G__ G.sig, 4) == 0) {  /* bad offset */
            Info(slide, 0x401, ((char *)slide, LoadFarString(OffsetMsg),
              *pfilnum, "EOF", (long)request));
            error_in_archive = PK_BADERR;
            continue;   /* but can still try next one */
        }
        if (memcmp(G.sig, local_hdr_sig, 4)) {
            Info(slide, 0x401, ((char *)slide, LoadFarString(OffsetMsg),
              *pfilnum, LoadFarStringSmall(LocalHdrSig), (long)request));
            /*
                GRRDUMP(G.sig, 4)
                GRRDUMP(local_hdr_sig, 4)
             */
            error_in_archive = PK_ERR;
            if ((*pfilnum == 1 && G.extra_bytes != 0L) ||
                (G.extra_bytes == 0L && *pold_extra_bytes != 0L)) {
                Info(slide, 0x401, ((char *)slide,
                  LoadFarString(AttemptRecompensate)));
                if (G.extra_bytes) {
                    *pold_extra_bytes = G.extra_bytes;
                    G.extra_bytes = 0L;
                } else
                    G.extra_bytes = *pold_extra_bytes; /* third attempt */
                if (((error = seek_zipf(__G__ G.pInfo->offset)) != PK_OK) ||
                    (readbuf(__G__ G.sig, 4) == 0)) {  /* bad offset */
                    if (error != PK_BADERR)
                      Info(slide, 0x401, ((char *)slide,
                        LoadFarString(OffsetMsg), *pfilnum, "EOF",
                        (long)request));
                    error_in_archive = PK_BADERR;
                    continue;   /* but can still try next one */
                }
                if (memcmp(G.sig, local_hdr_sig, 4)) {
                    Info(slide, 0x401, ((char *)slide,
                      LoadFarString(OffsetMsg), *pfilnum,
                      LoadFarStringSmall(LocalHdrSig), (long)request));
                    error_in_archive = PK_BADERR;
                    continue;
                }
            } else
                continue;  /* this one hosed; try next */
        }
        if ((error = process_local_file_hdr(__G)) != PK_COOL) {
            Info(slide, 0x421, ((char *)slide, LoadFarString(BadLocalHdr),
              *pfilnum));