home *** CD-ROM | disk | FTP | other *** search
- /*--------------------------------------------------------------------------
-
- zipinfo.c
-
- This program reads all sorts of totally nifty information, including the
- central directory stuff, from a ZIP archive ("zipfile" for short). It
- started as just a testbed for fooling with zipfiles, but at this point
- it's actually a moderately useful utility. It also became the basis
- for the rewrite of unzip (3.16 -> 4.0), using the central directory for
- processing rather than the individual (local) file headers.
-
- For myself, I find it convenient to define an alias "ii" (under Unix and
- VMS) or to rename the executable to "ii.exe" (OS/2 and DOS). This nicely
- complements my Unix long-listing "ll" alias (ls -lF), since zipinfo's de-
- fault action is to produce a Unix-like listing of the archive's contents.
- "ii zipfile" is easier to type than "zipinfo zipfile"...
-
- Another dandy product from your buddies at Newtware!
-
- --------------------------------------------------------------------------
-
- To compile (partial instructions; some of this stuff doesn't exist yet):
-
- under Unix (cc): make zipinfo
-
- under MS-DOS (TurboC): make -fMKZIPINF.DOS (edit appropriately)
-
- under MS-DOS (MSC): make MKZIPINF.DOS
- (or use Makefile if you have MSC 6.0: "nmake zi_dos")
-
- under OS/2 (MSC): make MKZIPINF.DOS (edit appropriately)
- (or use Makefile if you have MSC 6.0: "nmake zi_os2")
-
- under Atari OS: beats me...
-
- under VMS: @MAKE_ZIPINFO (see also VMSNOTES)
- ZIPINFO == $DISKNAME:[DIRECTORY]ZIPINFO.EXE
-
- under Macintosh OS: who knows?
-
- --------------------------------------------------------------------------
-
- Version: unzip42.zip (.tar.Z, etc.) for Unix, VMS, OS/2 and MS-DOS
- Source: wuarchive.wustl.edu (128.252.135.4) in /mirrors/misc/unix
- wsmr-simtel20.army.mil (192.88.110.20) in pd1:[misc.unix]
- Author: Greg Roelofs, roelofs@amelia.nas.nasa.gov, 23 August 1990
- Copyright: none (except that some of the file input/output code comes
- from unzip, which has its own copyrights, sort of...MY stuff
- is in the public domain, however)
-
- --------------------------------------------------------------------------*/
-
-
-
-
-
- #define ZIPINFO
- #include "unzip.h"
-
- #define VERSION "v0.96k BETA of 20 Mar 92"
-
-
-
-
-
- /**********************/
- /* Global Variables */
- /**********************/
-
- #ifdef EBCDIC
- int aflag=1; /* this is so you can read it on the screen */
- #else /* (basically, entire program is "unzip -c") */
- int aflag=0;
- #endif
- int lflag=2; /* for "ls -l" type listing */
-
-
- byte *inbuf, *inptr; /* input buffer (any size is legal) and pointer */
- int incnt;
-
- int zipfd; /* zipfile file handle */
- char zipfn[FILNAMSIZ];
-
- char local_hdr_sig[5] = "\120"; /* remaining signature bytes come later: */
- char central_hdr_sig[5] = "\120"; /* must initialize at runtime so zipinfo */
- char end_central_sig[5] = "\120"; /* executable won't look like a zipfile */
-
- cdir_file_hdr crec; /* used in zipinfo.c, misc.c */
- local_file_hdr lrec;
- ecdir_rec ecrec;
- struct stat statbuf; /* used by main() */
-
- int process_all_files;
- longint extra_bytes=0; /* used in zipinfo.c, misc.c */
- longint cur_zipfile_bufstart; /* find_end_central_dir, readbuf */
-
- min_info info, *pInfo=(&info);
-
- byte *extra_field = NULL; /* currently used by VMS version only */
-
-
- byte *outbuf; /* buffer for rle look-back, zipfile comment */
- byte *outout; /* scratch pad for ASCII-native trans */
-
- char filename[FILNAMSIZ];
- char sig[5];
-
-
- char *fnames[2] = {"*", NULL}; /* default filenames vector */
- char **fnv = fnames;
-
- static byte *hold;
- static longint ziplen;
- static UWORD hostnum;
- static UWORD methnum;
- static UWORD extnum;
- /*
- UWORD j, yr, mo, dy, hh, mm, members = 0;
- ULONG tot_csize = 0L, tot_ucsize = 0L;
- */
-
-
- char *EndSigMsg = "\nwarning:\
- didn't find end-of-central-dir signature at end of central dir.\n";
- char *CentSigMsg =
- "error: expected central file header signature not found (file #%u).\n";
- char *SeekMsg =
- "error: attempt to seek before beginning of zipfile\n%s";
-
- #ifdef VMS
- char *ReportMsg = "\
- (please check that you have transferred or created the zipfile in the\n\
- appropriate BINARY mode--this includes ftp, Kermit, AND unzip'd zipfiles)\n";
- #else /* !VMS */
- char *ReportMsg = "\
- (please check that you have transferred or created the zipfile in the\n\
- appropriate BINARY mode and that you have compiled unzip properly)\n";
- #endif /* ?VMS */
-
-
-
-
-
-
- /******************/
- /* Main program */
- /******************/
-
- main(argc, argv)
- int argc;
- char *argv[];
- {
- char *s;
- int c, error=FALSE;
-
-
-
- /*---------------------------------------------------------------------------
- Everybody is now "NOTINT16," but this is a nice little piece of code, so
- just comment it out for future reference. :-)
- ---------------------------------------------------------------------------*/
-
- #if 0
- # ifndef KNOW_IT_WORKS /* define this to save space, if things already work */
- # ifndef DOS_OS2 /* already works (no RISCy OS/2's yet...) */
- # ifndef NOTINT16 /* whole point is to see if this NEEDS defining */
- {
- int error=0;
- long testsig;
- static char *mach_type[3] = {"big-endian", "structure-padding",
- "big-endian and structure-padding"};
-
- strcpy((char *)&testsig,"012");
- if (testsig != 0x00323130)
- error = 1;
- if (sizeof(cdir_file_hdr) != CREC_SIZE)
- error += 2;
- if (error--)
- fprintf(stderr, "It appears that your machine is %s. If errors\n\
- occur, please try recompiling with \"NOTINT16\" defined (read the\n\
- Makefile, or try \"make zipinfo\").\n\n", mach_type[error]);
- }
- # endif /* !NOTINT16 */
- # endif /* !DOS_OS2 */
- # endif /* !KNOW_IT_WORKS */
- #endif /* 0 */
-
- /*---------------------------------------------------------------------------
- Rip through any command-line options lurking about...
- ---------------------------------------------------------------------------*/
-
- while (--argc > 0 && (*++argv)[0] == '-') {
- s = argv[0] + 1;
- while ((c = *s++) != 0) { /* "!= 0": prevent Turbo C warning */
- switch (c) {
- case ('1'): /* minimum listing: just names */
- lflag = 0;
- break;
- case ('l'): /* default: "ls -l" type listing */
- lflag = 2;
- break;
- case ('v'): /* turbo-verbose listing */
- lflag = 10;
- break;
- default:
- error = TRUE;
- break;
- }
- }
- }
- if ((argc-- == 0) || error)
- RETURN(usage(error));
-
- /*---------------------------------------------------------------------------
- Now get the zipfile name from the command line and see if it exists as a
- regular (non-directory) file. If not, append the ".zip" suffix. We don't
- immediately check to see if this results in a good name, but we will do so
- later. In the meantime, see if there are any member filespecs on the com-
- mand line, and if so, set the filename pointer to point at them.
- ---------------------------------------------------------------------------*/
-
- strcpy(zipfn, *argv++);
- if (stat(zipfn, &statbuf) || (statbuf.st_mode & S_IFMT) == S_IFDIR)
- strcat(zipfn, ZSUFX);
- #if defined(UNIX) && !defined(VMS) /* Unix executables have no extension-- */
- else if (statbuf.st_mode & S_IEXEC) /* might find zip, not zip.zip; etc */
- fprintf(stderr, "\nnote: file [ %s ] may be an executable\n\n", zipfn);
- #endif /* UNIX && !VMS */
-
- if (stat(zipfn, &statbuf)) { /* try again */
- fprintf(stderr, "error: can't find zipfile [ %s ]\n", zipfn);
- RETURN(9); /* 9: file not found */
- } else
- ziplen = statbuf.st_size;
-
- if (argc != 0) {
- fnv = argv;
- process_all_files = FALSE;
- } else
- process_all_files = TRUE; /* for speed */
-
- /*---------------------------------------------------------------------------
- Okey dokey, we have everything we need to get started. Let's roll.
- ---------------------------------------------------------------------------*/
-
- inbuf = (byte *) (malloc(INBUFSIZ + 4)); /* 4 extra for hold[] (below) */
- outbuf = (byte *) (malloc(OUTBUFSIZ + 1)); /* 1 extra for string termin. */
- if (aflag) /* if need an ascebc scratch, */
- outout = (byte *) (malloc(OUTBUFSIZ));
- else /* allocate it... */
- outout = outbuf; /* else just point to outbuf */
-
- if ((inbuf == NULL) || (outbuf == NULL) || (outout == NULL)) {
- fprintf(stderr, "error: can't allocate zipinfo buffers\n");
- RETURN(4); /* 4-8: insufficient memory */
- }
- hold = &inbuf[INBUFSIZ]; /* to check for boundary-spanning signatures */
-
- RETURN(process_zipfile()); /* keep passing errors back... */
-
- } /* end main() */
-
-
-
-
-
- /**********************/
- /* Function usage() */
- /**********************/
-
- int usage(error)
- int error;
- {
- FILE *usagefp;
-
-
- /*---------------------------------------------------------------------------
- If user requested usage, send it to stdout; else send to stderr.
- ---------------------------------------------------------------------------*/
-
- if (error)
- usagefp = (FILE *) stderr;
- else
- usagefp = (FILE *) stdout;
-
- fprintf(usagefp, "\
- ZipInfo: Zipfile Information Utility %s\n\
- (brought to you by Newtware, Inc., and the fine folks at Info-ZIP)\n\n\
- Usage: zipinfo [-1lv] file[.zip] [filespec...]\n", VERSION);
- fprintf(usagefp, "\
- -1 list filenames only, one per line (useful for pipes)\n\
- -l list files in Unix \"ls -l\" format: default\n\
- -v list files in verbose, multi-page format\n");
- /*
- -p disable automatic \"more\" function (for pipes) [not implemented]\n");
- */
-
- #ifdef VMS
- fprintf(usagefp, "\nRemember that non-lowercase filespecs must be quoted\
- in VMS (e.g., \"Makefile\").\n");
- #endif
-
- if (error)
- return 10; /* 10: bad or illegal parameters specified */
- else
- return 0; /* just wanted usage screen: no error */
-
- } /* end function usage() */
-
-
-
-
-
- /********************************/
- /* Function process_zipfile() */
- /********************************/
-
- int process_zipfile() /* return PK-type error code */
- {
- int error=0, error_in_archive;
- longint real_ecrec_offset, expect_ecrec_offset;
-
-
- /*---------------------------------------------------------------------------
- Open the zipfile for reading and in BINARY mode to prevent CR/LF trans-
- lation, which would corrupt the bitstreams.
- ---------------------------------------------------------------------------*/
-
- #ifdef VMS
- {
- int rtype;
-
- VMSmunch(zipfn, GET_RTYPE, (char *)&rtype);
- if (rtype == FAT$C_VARIABLE) {
- fprintf(stderr,
- "\n Error: zipfile is in variable-length record format. Please\n\
- run \"bilf l %s\" to convert the zipfile to stream-LF\n\
- record format. (Both bilf.c and make_bilf.com are included\n\
- in the VMS unzip distribution.)\n\n", zipfn);
- return 2; /* 2: error in zipfile */
- }
- rtype = FAT$C_STREAMLF; /* Unix I/O loves it */
- VMSmunch(zipfn, CHANGE_RTYPE, (char *)&rtype);
- }
- #endif
-
- if (open_input_file()) /* this should never happen, given the */
- return (9); /* stat() test in main(), but... */
-
- /*---------------------------------------------------------------------------
- Reconstruct the various PK signature strings; find and process the end-
- of-central-directory header and the central directory; and close the
- zipfile.
- ---------------------------------------------------------------------------*/
-
- strcat(local_hdr_sig, LOCAL_HDR_SIG);
- strcat(central_hdr_sig, CENTRAL_HDR_SIG);
- strcat(end_central_sig, END_CENTRAL_SIG);
-
- if (find_end_central_dir()) /* not found; nothing to do */
- return (2); /* 2: error in zipfile */
-
- real_ecrec_offset = cur_zipfile_bufstart + (inptr-inbuf);
- #ifdef TEST
- printf("\n found end-of-central-dir signature at offset %ld (%.8lXh)\n",
- real_ecrec_offset, real_ecrec_offset);
- printf(" from beginning of file; offset %d (%.4Xh) within block\n",
- inptr-inbuf, inptr-inbuf);
- #endif
-
- if ((error_in_archive = process_end_central_dir()) > 1)
- return (error_in_archive);
-
- if (ecrec.number_this_disk == ecrec.num_disk_with_start_central_dir) {
- expect_ecrec_offset = ecrec.offset_start_central_directory +
- ecrec.size_central_directory;
- if ((extra_bytes = real_ecrec_offset - expect_ecrec_offset) < 0) {
- fprintf(stderr, "\nerror: missing %ld bytes in zipfile (\
- attempting to process anyway)\n\n", -extra_bytes);
- error_in_archive = 2; /* 2: (weak) error in zipfile */
- } else if (extra_bytes > 0) {
- if ((ecrec.offset_start_central_directory == 0) &&
- (ecrec.size_central_directory != 0)) /* zip 1.5 -go bug */
- {
- fprintf(stderr, "\nerror: NULL central directory offset (\
- attempting to process anyway)\n\n");
- error_in_archive = 2; /* 2: (weak) error in zipfile */
- } else {
- fprintf(stderr, "\nwarning: extra %ld bytes at beginning or\
- within zipfile\n (attempting to process anyway)\n\n", extra_bytes);
- error_in_archive = 1; /* 1: warning error */
- }
- }
- LSEEK( ecrec.offset_start_central_directory )
- if ((error = process_central_dir()) > error_in_archive)
- error_in_archive = error; /* don't overwrite stronger error */
- if (lflag > 9)
- printf("\n");
- } else {
- fprintf(stderr, "\n\
- Zipfile is part of a multi-disk archive, and this is not the disk on\
- which the central zipfile directory begins.\n");
- error_in_archive = 11; /* 11: no files found */
- }
-
- close(zipfd);
- #ifdef VMS
- VMSmunch(zipfn, RESTORE_RTYPE, NULL);
- #endif
- return (error_in_archive);
-
- } /* end function process_zipfile() */
-
-
-
-
-
- /*************************************/
- /* Function find_end_central_dir() */
- /*************************************/
-
- int find_end_central_dir() /* return 0 if found, 1 otherwise */
- {
- int i, numblks;
- longint tail_len;
-
-
-
- /*---------------------------------------------------------------------------
- Treat case of short zipfile separately.
- ---------------------------------------------------------------------------*/
-
- if (ziplen <= INBUFSIZ) {
- lseek(zipfd, 0L, SEEK_SET);
- if ((incnt = read(zipfd,inbuf,(unsigned int)ziplen)) == ziplen)
-
- /* 'P' must be at least 22 bytes from end of zipfile */
- for ( inptr = inbuf+ziplen-22 ; inptr >= inbuf ; --inptr )
- if ( (ascii_to_native(*inptr) == 'P') &&
- !strncmp(inptr, end_central_sig, 4) ) {
- incnt -= inptr - inbuf;
- return(0); /* found it! */
- } /* ...otherwise fall through & fail */
-
- /*---------------------------------------------------------------------------
- Zipfile is longer than INBUFSIZ: may need to loop. Start with short
- block at end of zipfile (if not TOO short).
- ---------------------------------------------------------------------------*/
-
- } else {
- if ((tail_len = ziplen % INBUFSIZ) > ECREC_SIZE) {
- cur_zipfile_bufstart = lseek(zipfd, ziplen-tail_len, SEEK_SET);
- if ((incnt = read(zipfd,inbuf,(unsigned int)tail_len)) != tail_len)
- goto fail; /* shut up, it's expedient. */
-
- /* 'P' must be at least 22 bytes from end of zipfile */
- for ( inptr = inbuf+tail_len-22 ; inptr >= inbuf ; --inptr )
- if ( (ascii_to_native(*inptr) == 'P') &&
- !strncmp(inptr, end_central_sig, 4) ) {
- incnt -= inptr - inbuf;
- return(0); /* found it! */
- } /* ...otherwise search next block */
- strncpy(hold, inbuf, 3); /* sig may span block boundary */
-
- } else {
- cur_zipfile_bufstart = ziplen - tail_len;
- }
-
- /*
- * Loop through blocks of zipfile data, starting at the end and going
- * toward the beginning. Need only check last 65557 bytes of zipfile:
- * comment may be up to 65535 bytes long, end-of-central-directory rec-
- * ord is 18 bytes (shouldn't hardcode this number, but what the hell:
- * already did so above (22=18+4)), and sig itself is 4 bytes.
- *
- * zipinfo: check the whole file, just in case some transfer protocol
- * has appended a whole bunch of garbage at the end of the archive.
- */
-
- #ifndef ZIPINFO
- /* ==amt to search== ==done== ==rounding== =blksiz= */
- numblks = (min(ziplen,65557) - tail_len + (INBUFSIZ-1)) / INBUFSIZ;
- #else
- numblks = ( ziplen - tail_len + (INBUFSIZ-1)) / INBUFSIZ;
- #endif
-
- for ( i = 1 ; i <= numblks ; ++i ) {
- cur_zipfile_bufstart -= INBUFSIZ;
- lseek(zipfd, cur_zipfile_bufstart, SEEK_SET);
- if ((incnt = read(zipfd,inbuf,INBUFSIZ)) != INBUFSIZ)
- break; /* fall through and fail */
-
- for ( inptr = inbuf+INBUFSIZ-1 ; inptr >= inbuf ; --inptr )
- if ( (ascii_to_native(*inptr) == 'P') &&
- !strncmp(inptr, end_central_sig, 4) ) {
- incnt -= inptr - inbuf;
- return(0); /* found it! */
- }
- strncpy(hold, inbuf, 3); /* sig may span block boundary */
- }
-
- } /* end if (ziplen > INBUFSIZ) */
-
- /*---------------------------------------------------------------------------
- Searched through whole region where signature should be without finding
- it. Print informational message and die a horrible death.
- ---------------------------------------------------------------------------*/
-
- fail:
-
- fprintf(stderr, "\n\
- End-of-central-directory signature not found. Either this file is not\n\
- a zipfile, or it constitutes one disk of a multi-part archive. In the\n\
- latter case the central directory and zipfile comment will be found on\n\
- the last disk(s) of this archive.\n");
- return(1); /* failed */
-
- } /* end function find_end_central_dir() */
-
-
-
-
-
- /****************************************/
- /* Function process_end_central_dir() */
- /****************************************/
-
- int process_end_central_dir() /* return PK-type error code */
- {
- ec_byte_rec byterec;
- int error=0;
-
-
- /*--------------------------------------------------------------------------
- Read the end-of-central-directory record and do any necessary machine-
- type conversions (byte ordering, structure padding compensation) by
- copying character array to struct.
- ---------------------------------------------------------------------------*/
-
- if (readbuf((char *) byterec, ECREC_SIZE+4) <= 0)
- return (51);
-
- ecrec.number_this_disk =
- makeword(&byterec[NUMBER_THIS_DISK]);
- ecrec.num_disk_with_start_central_dir =
- makeword(&byterec[NUM_DISK_WITH_START_CENTRAL_DIR]);
- ecrec.num_entries_centrl_dir_ths_disk =
- makeword(&byterec[NUM_ENTRIES_CENTRL_DIR_THS_DISK]);
- ecrec.total_entries_central_dir =
- makeword(&byterec[TOTAL_ENTRIES_CENTRAL_DIR]);
- ecrec.size_central_directory =
- makelong(&byterec[SIZE_CENTRAL_DIRECTORY]);
- ecrec.offset_start_central_directory =
- makelong(&byterec[OFFSET_START_CENTRAL_DIRECTORY]);
- ecrec.zipfile_comment_length =
- makeword(&byterec[ZIPFILE_COMMENT_LENGTH]);
-
- /*---------------------------------------------------------------------------
- Print out various interesting things about the zipfile.
- ---------------------------------------------------------------------------*/
-
- if (lflag == 2) {
- if (process_all_files)
- /* fits on one line, for anything up to 10GB and 10000 files */
- printf((strlen(zipfn)<39)? "Archive: %s %ld bytes %d file%s\n"
- : "Archive: %s %ld %d\n", zipfn, ziplen,
- ecrec.total_entries_central_dir,
- (ecrec.total_entries_central_dir==1)? "":"s");
- } else if (lflag > 9) { /* verbose format */
- printf("\nEnd-of-central-directory record:\n");
- printf("-------------------------------\n\n");
-
- if (ecrec.number_this_disk == 0) {
- printf("\
- This zipfile constitutes the sole disk of a single-part archive; its\n\
- central directory contains %u %s. The central directory is %lu\n\
- (%.8lXh) bytes long, and its offset in bytes from the beginning of\n\
- the zipfile is %lu (%.8lXh).\n\n",
- ecrec.total_entries_central_dir,
- (ecrec.total_entries_central_dir == 1)? "entry" : "entries",
- ecrec.size_central_directory, ecrec.size_central_directory,
- ecrec.offset_start_central_directory,
- ecrec.offset_start_central_directory);
- } else {
- printf("\
- This zipfile constitutes disk %u of a multi-part archive. The central\n\
- directory starts on disk %u; %u of its entries %s contained within\n\
- this zipfile, out of a total of %u %s. The entire central\n\
- directory is %lu (%.8lXh) bytes long, and its offset in bytes from\n\
- the beginning of the zipfile in which it begins is %lu (%.8lXh).\n\n",
- ecrec.number_this_disk,
- ecrec.num_disk_with_start_central_dir,
- ecrec.num_entries_centrl_dir_ths_disk,
- (ecrec.num_entries_centrl_dir_ths_disk == 1)? "is" : "are",
- ecrec.total_entries_central_dir,
- (ecrec.total_entries_central_dir == 1) ? "entry" : "entries",
- ecrec.size_central_directory, ecrec.size_central_directory,
- ecrec.offset_start_central_directory,
- ecrec.offset_start_central_directory);
- }
-
- /*-----------------------------------------------------------------------
- Get the zipfile comment, if any, and print it out. (Comment may be
- up to 64KB long. May the fleas of a thousand camels infest the arm-
- pits of anyone who actually takes advantage of this fact.)
- -----------------------------------------------------------------------*/
-
- if (!ecrec.zipfile_comment_length)
- printf(" There is no zipfile comment.\n");
- else {
- printf(" The zipfile comment is %u bytes long and contains the following text:\n\n",
- ecrec.zipfile_comment_length );
- printf("======================== zipfile comment begins ==========================\n");
- if (do_string(ecrec.zipfile_comment_length, DISPLAY))
- error = 1; /* 1: warning error */
- printf("\n========================= zipfile comment ends ===========================\n");
- if (error)
- printf("\n The zipfile comment is truncated.\n");
- } /* endif (comment exists) */
-
- } /* endif (verbose) */
-
- return error;
-
- } /* end function process_end_central_dir() */
-
-
-
-
-
- /******************************************/
- /* Function process_central_directory() */
- /******************************************/
-
- int process_central_dir() /* return PK-type error code */
- {
- char **fnamev;
- int do_this_file=FALSE, none_found=TRUE, error, error_in_archive=0;
- UWORD j, members=0;
- ULONG tot_csize=0L, tot_ucsize=0L;
-
-
- /*---------------------------------------------------------------------------
- Set file pointer to start of central directory, then loop through cen-
- tral directory entries. Check that directory-entry signature bytes are
- actually there (just a precaution), then process the entry. We know
- the entire central directory is on this disk: we wouldn't have any of
- this information unless the end-of-central-directory record was on this
- disk, and we wouldn't have gotten to this routine unless this is also
- the disk on which the central directory starts. In practice, this had
- better be the *only* disk in the archive, but maybe someday we'll add
- multi-disk support.
- ---------------------------------------------------------------------------*/
-
- pInfo->lcflag = 0; /* match(), do_string(): never TRUE in zipinfo */
-
- for (j = 0; j < ecrec.total_entries_central_dir; ++j) {
- if (readbuf(sig, 4) <= 0)
- return (51); /* 51: unexpected EOF */
- if (strncmp(sig, central_hdr_sig, 4)) { /* just to make sure */
- fprintf(stderr, CentSigMsg, j); /* sig not found */
- return (3); /* 3: error in zipfile */
- }
- if ((error = process_cdir_file_hdr()) != 0)
- return (error); /* only 51 (EOF) defined */
- if ((error = do_string(crec.filename_length, FILENAME)) != 0) {
- error_in_archive = error; /* might be warning */
- if (error > 1) /* fatal */
- return (error);
- }
-
- if (!process_all_files) { /* check if specified on command line */
- do_this_file = FALSE;
- fnamev = fnv; /* don't destroy permanent filename ptr */
- for (--fnamev; *++fnamev; )
- if (match(filename, *fnamev)) {
- do_this_file = TRUE;
- none_found = FALSE;
- break; /* found match, so stop looping */
- }
- }
-
- /*-----------------------------------------------------------------------
- If current file was specified on command line, or if no names were
- specified, do the listing for this file. Otherwise, get rid of the
- file comment and go back for the next file.
- -----------------------------------------------------------------------*/
-
- if (process_all_files || do_this_file) {
- switch (lflag) {
- case 0:
- printf("%s\n", filename);
- SKIP_(crec.extra_field_length)
- SKIP_(crec.file_comment_length)
- break;
-
- case 2:
- if ((error = short_info()) != 0) {
- error_in_archive = error; /* might be warning */
- if (error > 1) /* fatal */
- return (error);
- }
- break;
-
- case 10:
- #ifdef VMS /* GRR: FIX THIS (no pipes: add cbreak-style "more" function) */
- printf("\nCentral directory entry #%d:\n", j);
- #else /* !VMS */
- /* formfeed/CR for piping to "more": */
- printf("%s\nCentral directory entry #%d:\n", "\014", j);
- #endif /* ?VMS */
- printf("---------------------------\n\n");
-
- if ((error = long_info()) != 0) {
- error_in_archive = error; /* might be warning */
- if (error > 1) /* fatal */
- return (error);
- }
- break;
-
- default:
- SKIP_(crec.extra_field_length)
- SKIP_(crec.file_comment_length)
- break;
-
- } /* end switch (lflag) */
-
- tot_ucsize += crec.uncompressed_size;
- tot_csize += crec.compressed_size;
- ++members;
-
- } else { /* not listing */
- SKIP_(crec.extra_field_length)
- SKIP_(crec.file_comment_length)
-
- } /* end if (list member?) */
-
- } /* end for-loop (j: member files) */
-
- /*---------------------------------------------------------------------------
- Double check that we're back at the end-of-central-directory record.
- ---------------------------------------------------------------------------*/
-
- readbuf(sig, 4);
- if (strncmp(sig, end_central_sig, 4)) { /* just to make sure again */
- fprintf(stderr, EndSigMsg); /* didn't find end-of-central-dir sig */
- error_in_archive = 1; /* 1: warning error */
- }
-
- /*---------------------------------------------------------------------------
- Check that we actually found requested files.
- ---------------------------------------------------------------------------*/
-
- if (none_found && !process_all_files) {
- fnamev = fnv; /* don't destroy permanent filename ptr */
- for (--fnamev; *++fnamev; )
- printf("zipinfo: %s not found in %s\n", *fnamev, zipfn);
- }
-
- return (error_in_archive);
- }
-
-
-
-
-
- /**************************************/
- /* Function process_cdir_file_hdr() */
- /**************************************/
-
- int process_cdir_file_hdr() /* return PK-type error code */
- {
- cdir_byte_hdr byterec;
-
-
- /*---------------------------------------------------------------------------
- Read the next central directory entry and do any necessary machine-type
- conversions (byte ordering, structure padding compensation--do so by
- copying the data from the array into which it was read (byterec) to the
- usable struct (crec)).
- ---------------------------------------------------------------------------*/
-
- if (readbuf((char *) byterec, CREC_SIZE) <= 0)
- return (51); /* 51: unexpected EOF */
-
- crec.version_made_by[0] = byterec[C_VERSION_MADE_BY_0];
- crec.version_made_by[1] = byterec[C_VERSION_MADE_BY_1];
- crec.version_needed_to_extract[0] = byterec[C_VERSION_NEEDED_TO_EXTRACT_0];
- crec.version_needed_to_extract[1] = byterec[C_VERSION_NEEDED_TO_EXTRACT_1];
-
- crec.general_purpose_bit_flag =
- makeword(&byterec[C_GENERAL_PURPOSE_BIT_FLAG]);
- crec.compression_method =
- makeword(&byterec[C_COMPRESSION_METHOD]);
- crec.last_mod_file_time =
- makeword(&byterec[C_LAST_MOD_FILE_TIME]);
- crec.last_mod_file_date =
- makeword(&byterec[C_LAST_MOD_FILE_DATE]);
- crec.crc32 =
- makelong(&byterec[C_CRC32]);
- crec.compressed_size =
- makelong(&byterec[C_COMPRESSED_SIZE]);
- crec.uncompressed_size =
- makelong(&byterec[C_UNCOMPRESSED_SIZE]);
- crec.filename_length =
- makeword(&byterec[C_FILENAME_LENGTH]);
- crec.extra_field_length =
- makeword(&byterec[C_EXTRA_FIELD_LENGTH]);
- crec.file_comment_length =
- makeword(&byterec[C_FILE_COMMENT_LENGTH]);
- crec.disk_number_start =
- makeword(&byterec[C_DISK_NUMBER_START]);
- crec.internal_file_attributes =
- makeword(&byterec[C_INTERNAL_FILE_ATTRIBUTES]);
- crec.external_file_attributes =
- makelong(&byterec[C_EXTERNAL_FILE_ATTRIBUTES]); /* LONG, not word! */
- crec.relative_offset_local_header =
- makelong(&byterec[C_RELATIVE_OFFSET_LOCAL_HEADER]);
-
- return (0);
-
- } /* end function process_cdir_file_hdr() */
-
-
-
-
- /**************************/
- /* Function long_info() */
- /**************************/
-
- int long_info() /* return PK-type error code */
- {
- int error, error_in_archive=0;
- UWORD hostver, extver, xattr;
- char workspace[12], attribs[22];
- static char unkn[16];
- static char *os[NUM_HOSTS+1] = {"MS-DOS or OS/2 FAT", "Amiga", "VAX VMS",
- "Unix", "VM/CMS", "Atari ST", "OS/2 HPFS", "Macintosh",
- "Z-System", "CP/M", "unknown" };
- static char *method[NUM_METHODS+1] = {"none (stored)", "shrunk",
- "reduced (factor 1)", "reduced (factor 2)",
- "reduced (factor 3)", "reduced (factor 4)",
- "imploded", "tokenized", "deflated", unkn};
- static char *dtype[4] = {"normal", "maximum", "fastest", "undefined"};
-
-
- /*---------------------------------------------------------------------------
- Print out various interesting things about the compressed file.
- ---------------------------------------------------------------------------*/
-
- hostnum = min(crec.version_made_by[1], NUM_HOSTS);
- hostver = crec.version_made_by[0];
- extnum = min(crec.version_needed_to_extract[1], NUM_HOSTS);
- extver = crec.version_needed_to_extract[0];
- methnum = min(crec.compression_method, NUM_METHODS);
- if (methnum == NUM_METHODS)
- sprintf(unkn, "unknown (%d)", crec.compression_method);
-
- printf(" %s\n", filename);
-
- printf("\n host operating system (created on): %s\n",
- os[hostnum]);
- printf(" version of encoding software: %d.%d\n",
- hostver/10, hostver%10);
- printf(" minimum operating system compatibility required: %s\n",
- os[extnum]);
- printf(" minimum software version required to extract: %d.%d\n",
- extver/10, extver%10);
- printf(" compression method: %s\n",
- method[methnum]);
- if (methnum == IMPLODED) {
- printf(" size of sliding dictionary (implosion): %cK\n",
- (crec.general_purpose_bit_flag & 2)? '8' : '4');
- printf(" number of Shannon-Fano trees (implosion): %c\n",
- (crec.general_purpose_bit_flag & 4)? '3' : '2');
- } else if (methnum == DEFLATED) {
- UWORD dnum=(crec.general_purpose_bit_flag>>1) & 3;
- printf(" compression sub-type (deflation): %s\n",
- dtype[dnum]);
- }
- printf(" file security status: %sencrypted\n",
- (crec.general_purpose_bit_flag & 1)? "" : "not ");
- printf(" extended local header: %s\n",
- (crec.general_purpose_bit_flag & 8)? "yes" : "no");
- /* print upper 3 bits for amusement? */
- printf(" file last modified on: %s\n",
- zipinfo_time(&crec.last_mod_file_date, &crec.last_mod_file_time));
- printf(" 32-bit CRC value (hex): %.8lx\n",
- crec.crc32);
- printf(" compressed size: %lu bytes\n",
- crec.compressed_size);
- printf(" uncompressed size: %lu bytes\n",
- crec.uncompressed_size);
- printf(" length of filename: %u characters\n",
- crec.filename_length);
- printf(" length of extra field: %u bytes\n",
- crec.extra_field_length);
- printf(" length of file comment: %u characters\n",
- crec.file_comment_length);
- printf(" disk number on which file begins: disk %u\n",
- crec.disk_number_start);
- printf(" apparent file type: %s\n",
- (crec.internal_file_attributes & 1)? "text" : "binary");
- /*
- printf(" external file attributes (hex): %.8lx\n",
- crec.external_file_attributes);
- */
- xattr = (crec.external_file_attributes >> 16) & 0xFFFF;
- if (hostnum == VMS_) {
- char *p=attribs, *q=attribs+1;
- int i, j, k;
-
- for (k = 0; k < 12; ++k)
- workspace[k] = 0;
- if (xattr & S_IRUSR)
- workspace[0] = 'R';
- if (xattr & S_IWUSR) {
- workspace[1] = 'W';
- workspace[3] = 'D';
- }
- if (xattr & S_IXUSR)
- workspace[2] = 'E';
- if (xattr & S_IRGRP)
- workspace[4] = 'R';
- if (xattr & S_IWGRP) {
- workspace[5] = 'W';
- workspace[7] = 'D';
- }
- if (xattr & S_IXGRP)
- workspace[6] = 'E';
- if (xattr & S_IROTH)
- workspace[8] = 'R';
- if (xattr & S_IWOTH) {
- workspace[9] = 'W';
- workspace[11] = 'D';
- }
- if (xattr & S_IXOTH)
- workspace[10] = 'E';
-
- *p++ = '(';
- for (k = j = 0; j < 3; ++j) { /* loop over groups of permissions */
- for (i = 0; i < 4; ++i, ++k) /* loop over perms within a group */
- if (workspace[k])
- *p++ = workspace[k];
- *p++ = ','; /* group separator */
- if (j == 0)
- while ((*p++ = *q++) != ','); /* system, owner perms are same */
- }
- *p-- = 0;
- *p = ')'; /* overwrite last comma */
- printf(" VMS file attributes (%06o octal): %s\n",
- xattr, attribs);
-
- } else if ((hostnum != DOS_OS2_FAT_) && (hostnum != OS2_HPFS_)) {
- /* assume Unix-like */
- switch (xattr & S_IFMT) {
- case S_IFREG: attribs[0] = '-'; break;
- case S_IFLNK: attribs[0] = 'l'; break;
- case S_IFBLK: attribs[0] = 'b'; break;
- case S_IFCHR: attribs[0] = 'c'; break;
- case S_IFIFO: attribs[0] = 'p'; break;
- case S_IFSOCK: attribs[0] = 's'; break;
- case S_IFDIR: attribs[0] = 'd'; break;
- default: attribs[0] = '?'; break;
- }
- if (xattr & S_IRUSR) /* no read-permission: user */
- attribs[1] = 'r';
- else
- attribs[1] = '-';
- if (xattr & S_IWUSR) /* no write-permission: user */
- attribs[2] = 'w';
- else
- attribs[2] = '-';
- if (xattr & S_IXUSR) /* no execute-permission: user */
- if (xattr & S_ISUID)
- attribs[3] = 's';
- else
- attribs[3] = 'x';
- else
- if (xattr & S_ISUID)
- attribs[3] = 'S'; /* undefined state */
- else
- attribs[3] = '-';
- if (xattr & S_IRGRP) /* no read-permission: group */
- attribs[4] = 'r';
- else
- attribs[4] = '-';
- if (xattr & S_IWGRP) /* no write-permission: group */
- attribs[5] = 'w';
- else
- attribs[5] = '-';
- if (xattr & S_IXGRP) /* no execute-permission: group */
- if (xattr & S_ISGID)
- attribs[6] = 's';
- else
- attribs[6] = 'x';
- else
- if (xattr & S_ISGID) /* or could use S_ENFMT (same) */
- attribs[6] = 'l';
- else
- attribs[6] = '-';
- if (xattr & S_IROTH) /* no read-permission: other */
- attribs[7] = 'r';
- else
- attribs[7] = '-';
- if (xattr & S_IWOTH) /* no write-permission: other */
- attribs[8] = 'w';
- else
- attribs[8] = '-';
- if (xattr & S_IXOTH) /* no execute-permission: other */
- if (xattr & S_ISVTX) /* "sticky bit" */
- attribs[9] = 't';
- else
- attribs[9] = 'x';
- else
- if (xattr & S_ISVTX)
- attribs[9] = 'T'; /* undefined state */
- else
- attribs[9] = '-';
- attribs[10] = 0;
- printf(" Unix file attributes (%06o octal): %s\n",
- xattr, attribs);
-
- } /* endif (hostnum: external attributes format) */
-
- if ((xattr=crec.external_file_attributes & 0xFF) == 0)
- printf(" MS-DOS file attributes (%02X hex): none\n",
- xattr);
- else if (xattr == 1)
- printf(
- " MS-DOS file attributes (%02X hex): read-only\n",
- xattr);
- else
- printf(
- " MS-DOS file attributes (%02X hex): %s%s%s%s%s%s\n",
- xattr, (xattr&1)?"rdo ":"", (xattr&2)?"hid ":"", (xattr&4)?"sys ":"",
- (xattr&8)?"lab ":"", (xattr&16)?"dir ":"", (xattr&32)?"arc":"");
- printf(
- " offset of local header from start of archive: %lu (%.8lXh) bytes\n",
- crec.relative_offset_local_header, crec.relative_offset_local_header);
-
- /*---------------------------------------------------------------------------
- Skip the extra field, if any, and print the file comment, if any (the
- filename has already been printed, above). That finishes up this file
- entry...
- ---------------------------------------------------------------------------*/
-
- if (crec.extra_field_length > 0) {
- printf("\n There is an extra field (skipping).\n");
- SKIP_(crec.extra_field_length)
- } else
- printf("\n");
-
- if (!crec.file_comment_length)
- printf(" There is no file comment.\n");
- else {
- printf("\
- ------------------------- file comment begins ----------------------------\n");
- if ((error = do_string(crec.file_comment_length, DISPLAY)) != 0) {
- error_in_archive = error; /* might be warning */
- if (error > 1) /* fatal */
- return (error);
- }
- printf("\n\
- -------------------------- file comment ends -----------------------------\n");
- }
-
- return (error_in_archive);
-
- } /* end function long_info() */
-
-
-
-
-
- /***************************/
- /* Function short_info() */
- /***************************/
-
- int short_info() /* return PK-type error code */
- {
- int k, error, error_in_archive=0;
- UWORD hostver, xattr;
- char workspace[12], attribs[16];
- static char impl[5]="i#:#", defl[5]="def#", unkn[8];
- static char dtype[5]="NXF?"; /* normal, maximum, fastest, undefined */
- static char *os[NUM_HOSTS+1] = {"dos", "ami", "vms", "unx", "cms",
- "atr", "os2", "mac", "zzz", "cpm", "???" };
- static char *method[NUM_METHODS+1] = {"stor", "shrk", "re:1", "re:2",
- "re:3", "re:4", impl, "tokn", defl, unkn};
-
-
- /*---------------------------------------------------------------------------
- Print out various interesting things about the compressed file.
- ---------------------------------------------------------------------------*/
-
- methnum = min(crec.compression_method, NUM_METHODS);
- hostnum = min(crec.version_made_by[1], NUM_HOSTS);
- hostver = crec.version_made_by[0];
- /*
- extnum = min(crec.version_needed_to_extract[1], NUM_HOSTS);
- extver = crec.version_needed_to_extract[0];
- */
-
- if (methnum == IMPLODED) {
- impl[1] = (crec.general_purpose_bit_flag & 2)? '8' : '4';
- impl[3] = (crec.general_purpose_bit_flag & 4)? '3' : '2';
- } else if (methnum == DEFLATED) {
- UWORD dnum=(crec.general_purpose_bit_flag>>1) & 3;
- defl[3] = dtype[dnum];
- } else if (methnum == NUM_METHODS) { /* unknown */
- sprintf(unkn, "u%03d", crec.compression_method);
- }
-
- for (k = 0; k < 15; ++k)
- attribs[k] = ' ';
- attribs[15] = 0;
-
- xattr = (crec.external_file_attributes >> 16) & 0xFFFF;
- switch (hostnum) {
- case VMS_:
- { char *p=attribs;
- int i, j;
-
- for (k = 0; k < 12; ++k)
- workspace[k] = 0;
- if (xattr & S_IRUSR)
- workspace[0] = 'R';
- if (xattr & S_IWUSR) {
- workspace[1] = 'W';
- workspace[3] = 'D';
- }
- if (xattr & S_IXUSR)
- workspace[2] = 'E';
- if (xattr & S_IRGRP)
- workspace[4] = 'R';
- if (xattr & S_IWGRP) {
- workspace[5] = 'W';
- workspace[7] = 'D';
- }
- if (xattr & S_IXGRP)
- workspace[6] = 'E';
- if (xattr & S_IROTH)
- workspace[8] = 'R';
- if (xattr & S_IWOTH) {
- workspace[9] = 'W';
- workspace[11] = 'D';
- }
- if (xattr & S_IXOTH)
- workspace[10] = 'E';
-
- for (k = j = 0; j < 3; ++j) { /* groups of permissions */
- for (i = 0; i < 4; ++i, ++k) /* perms within a group */
- if (workspace[k])
- *p++ = workspace[k];
- *p++ = ','; /* group separator */
- }
- *--p = ' '; /* overwrite last comma */
- if ((p - attribs) < 12)
- sprintf(&attribs[12], "%d.%d", hostver/10, hostver%10);
- }
- break;
-
- case DOS_OS2_FAT_:
- case OS2_HPFS_:
- xattr = crec.external_file_attributes & 0xFF;
- sprintf(attribs, "%s,%s,%s,%s", (xattr&32)?"arc":"",
- (xattr&2)?"hid":"", (xattr&1)?"rdo":"rw", (xattr&4)?"sys":"");
- if ((k = strlen(attribs)) < 15)
- attribs[k] = ' '; /* overwrite '\0' */
- if (k < 12)
- sprintf(&attribs[12], "%d.%d", hostver/10, hostver%10);
- break;
-
- default: /* assume Unix-like */
- switch (xattr & S_IFMT) {
- case S_IFREG: attribs[0] = '-'; break;
- case S_IFLNK: attribs[0] = 'l'; break;
- case S_IFBLK: attribs[0] = 'b'; break;
- case S_IFCHR: attribs[0] = 'c'; break;
- case S_IFIFO: attribs[0] = 'p'; break;
- case S_IFSOCK: attribs[0] = 's'; break;
- case S_IFDIR: attribs[0] = 'd'; break;
- default: attribs[0] = '?'; break;
- }
- if (xattr & S_IRUSR) /* no read-permission: user */
- attribs[1] = 'r';
- else
- attribs[1] = '-';
- if (xattr & S_IWUSR) /* no write-permission: user */
- attribs[2] = 'w';
- else
- attribs[2] = '-';
- if (xattr & S_IXUSR) /* no execute-permission: user */
- if (xattr & S_ISUID)
- attribs[3] = 's';
- else
- attribs[3] = 'x';
- else
- if (xattr & S_ISUID)
- attribs[3] = 'S'; /* undefined state */
- else
- attribs[3] = '-';
- if (xattr & S_IRGRP) /* no read-permission: group */
- attribs[4] = 'r';
- else
- attribs[4] = '-';
- if (xattr & S_IWGRP) /* no write-permission: group */
- attribs[5] = 'w';
- else
- attribs[5] = '-';
- if (xattr & S_IXGRP) /* no execute-permission: group */
- if (xattr & S_ISGID)
- attribs[6] = 's';
- else
- attribs[6] = 'x';
- else
- if (xattr & S_ISGID) /* or could use S_ENFMT (same) */
- attribs[6] = 'l';
- else
- attribs[6] = '-';
- if (xattr & S_IROTH) /* no read-permission: other */
- attribs[7] = 'r';
- else
- attribs[7] = '-';
- if (xattr & S_IWOTH) /* no write-permission: other */
- attribs[8] = 'w';
- else
- attribs[8] = '-';
- if (xattr & S_IXOTH) /* no execute-permission: other */
- if (xattr & S_ISVTX) /* "sticky bit" */
- attribs[9] = 't';
- else
- attribs[9] = 'x';
- else
- if (xattr & S_ISVTX)
- attribs[9] = 'T'; /* undefined state */
- else
- attribs[9] = '-';
- sprintf(&attribs[12], "%d.%d", hostver/10, hostver%10);
- break;
-
- } /* end switch (hostnum: external attributes format) */
-
- printf("%s %s %7lu %c%c %7lu %s %s %s\n", attribs, os[hostnum],
- crec.uncompressed_size, (crec.general_purpose_bit_flag & 1)?
- ((crec.internal_file_attributes & 1)? 'T' : 'B') : /* encrypted */
- ((crec.internal_file_attributes & 1)? 't' : 'b'), /* plaintext */
- (crec.general_purpose_bit_flag & 8)? (crec.extra_field_length? 'X' : 'l')
- : (crec.extra_field_length? 'x' : '-'),
- crec.compressed_size, method[methnum],
- zipinfo_time(&crec.last_mod_file_date, &crec.last_mod_file_time),
- filename);
-
- /*---------------------------------------------------------------------------
- Skip the extra field and/or the file comment, if any (the filename has
- already been printed, above). That finishes up this file entry...
- ---------------------------------------------------------------------------*/
-
- SKIP_(crec.extra_field_length)
- SKIP_(crec.file_comment_length)
-
- return (error_in_archive);
-
- } /* end function short_info() */
-
-
-
-
-
- /*****************************/
- /* Function zipinfo_time() */
- /*****************************/
-
- char *zipinfo_time(datez, timez)
- UWORD *datez, *timez;
- {
- UWORD yr, mo, dy, hh, mm, ss;
- static char d_t_str[21];
- static char *month[12] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
-
-
-
- /*---------------------------------------------------------------------------
- Convert the file-modification date and time info to a string of the form
- "23 Feb 1990 17:15:00" or "23-Feb-91 17:15," depending on value of lflag.
- ---------------------------------------------------------------------------*/
-
- yr = ((*datez >> 9) & 0x7f) + 80; /* dissect date */
- mo = ((*datez >> 5) & 0x0f) - 1;
- dy = *datez & 0x1f;
-
- hh = (*timez >> 11) & 0x1f; /* dissect time */
- mm = (*timez >> 5) & 0x3f;
- ss = (*timez & 0x1f) * 2;
-
- if (lflag == 2)
- sprintf(d_t_str, "%2u-%s-%u %02u:%02u", dy, month[mo], yr, hh, mm);
- else if (lflag > 9) /* verbose listing format */
- sprintf(d_t_str, "%u %s %u %02u:%02u:%02u", dy, month[mo], yr+1900,
- hh, mm, ss);
-
- return(d_t_str);
-
- } /* end function zipinfo_time() */
-
-
-
-
-
- /********************************/
- /* Function open_input_file() */
- /********************************/
-
- int open_input_file()
- { /* return non-0 if open failed */
- /*
- * open the zipfile for reading and in BINARY mode to prevent cr/lf
- * translation, which would corrupt the bitstreams
- */
-
- #ifndef UNIX
- zipfd = open(zipfn, O_RDONLY | O_BINARY);
- #else
- zipfd = open(zipfn, O_RDONLY);
- #endif
- if (zipfd < 1) {
- fprintf(stderr, "error: can't open zipfile [ %s ]\n", zipfn);
- return (1);
- }
- return 0;
- }
-
-
-
-
-
- /************************/
- /* Function readbuf() */
- /************************/
-
- int readbuf(buf, size)
- char *buf;
- register unsigned size;
- { /* return number of bytes read into buf */
- register int count;
- int n;
-
- n = size;
- while (size) {
- if (incnt == 0) {
- if ((incnt = read(zipfd, inbuf, INBUFSIZ)) <= 0)
- return (n-size);
- /* buffer ALWAYS starts on a block boundary: */
- cur_zipfile_bufstart += INBUFSIZ;
- inptr = inbuf;
- }
- count = min(size, incnt);
- memcpy(buf, inptr, count);
- buf += count;
- inptr += count;
- incnt -= count;
- size -= count;
- }
- return (n);
- }
-