forked from KolibriOS/kolibrios
1048 lines
37 KiB
C
1048 lines
37 KiB
C
/*
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Copyright (c) 1990-2008 Info-ZIP. All rights reserved.
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See the accompanying file LICENSE, version 2000-Apr-09 or later
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(the contents of which are also included in unzip.h) for terms of use.
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If, for some reason, all these files are missing, the Info-ZIP license
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also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
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*/
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/*---------------------------------------------------------------------------
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tanunz.c
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Tandem/NSK routines for use with Info-ZIP's UnZip 5.3 and later.
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Contains: do_wild() <-- generic enough to put in fileio.c?
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ef_scan_for_tandem()
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open_outfile()
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mapattr()
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mapname()
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checkdir()
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mkdir()
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close_outfile()
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version()
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---------------------------------------------------------------------------*/
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#define UNZIP_INTERNAL
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#include "unzip.h"
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#include <tal.h>
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#include "$system.zsysdefs.zsysc" nolist
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#include <cextdecs> nolist
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#include "tannsk.h"
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char *in2ex OF((__GPRO__ char *));
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static nsk_file_attrs *ef_scan_for_tandem (
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uch *ef_buf,
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unsigned ef_len
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);
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static int created_dir; /* used in mapname(), checkdir() */
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static int renamed_fullpath; /* ditto */
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/****************************/
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/* Strings used in tanunz.c */
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/****************************/
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static ZCONST char Far CannotDeleteOldFile[] =
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"error: cannot delete old %s\n";
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static ZCONST char Far CannotCreateFile[] = "error: cannot create %s\n";
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#ifndef SFX
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/**********************/
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/* Function do_wild() */ /* for porting: dir separator; match(ignore_case) */
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/**********************/
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char *do_wild(__G__ wildspec)
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__GDEF
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ZCONST char *wildspec; /* only used first time on a given dir */
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{
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static DIR *wild_dir = (DIR *)NULL;
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static ZCONST char *wildname;
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static char *dirname, matchname[FILNAMSIZ];
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static int notfirstcall=FALSE, have_dirname, dirnamelen;
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struct dirent *file;
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static char *intname;
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int isdir = 0;
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int pdosflag = 0;
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/* Even when we're just returning wildspec, we *always* do so in
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* matchname[]--calling routine is allowed to append four characters
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* to the returned string, and wildspec may be a pointer to argv[].
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*/
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if (!notfirstcall) { /* first call: must initialize everything */
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notfirstcall = TRUE;
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if (!iswild(wildspec)) {
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strncpy(matchname, wildspec, FILNAMSIZ);
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matchname[FILNAMSIZ-1] = '\0';
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have_dirname = FALSE;
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wild_dir = NULL;
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return matchname;
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}
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dirnamelen = strlen(wildspec);
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if ((dirname = (char *)malloc(dirnamelen+1)) == (char *)NULL) {
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Info(slide, 0x201, ((char *)slide,
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"warning: cannot allocate wildcard buffers\n"));
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strncpy(matchname, wildspec, FILNAMSIZ);
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matchname[FILNAMSIZ-1] = '\0';
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return matchname; /* but maybe filespec was not a wildcard */
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}
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strcpy(dirname, wildspec);
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wildname = wildspec;
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have_dirname = FALSE;
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if ((wild_dir = opendir(dirname)) != (DIR *)NULL) {
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while ((file = readdir(wild_dir)) != (struct dirent *)NULL) {
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Trace((stderr, "do_wild: readdir returns %s\n",
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FnFilter1(file->d_name)));
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if (file->d_name[0] == '.' && wildname[0] != '.')
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continue; /* Unix: '*' and '?' do not match leading dot */
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if (match(file->d_name, wildname, 0 WISEP) && /* 0=case sens.*/
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/* skip "." and ".." directory entries */
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strcmp(file->d_name, ".") && strcmp(file->d_name, "..")) {
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Trace((stderr, "do_wild: match() succeeds\n"));
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if (have_dirname) {
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strcpy(matchname, dirname);
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strcpy(matchname+dirnamelen, file->d_name);
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} else
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strcpy(matchname, file->d_name);
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return matchname;
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}
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}
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/* if we get to here directory is exhausted, so close it */
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closedir(wild_dir);
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wild_dir = (DIR *)NULL;
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}
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/* return the raw wildspec in case that works (e.g., directory not
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* searchable, but filespec was not wild and file is readable) */
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strncpy(matchname, wildspec, FILNAMSIZ);
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matchname[FILNAMSIZ-1] = '\0';
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return matchname;
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}
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/* last time through, might have failed opendir but returned raw wildspec */
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if (wild_dir == (DIR *)NULL) {
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notfirstcall = FALSE; /* nothing left to try--reset for new wildspec */
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if (have_dirname)
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free(dirname);
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return (char *)NULL;
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}
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/* If we've gotten this far, we've read and matched at least one entry
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* successfully (in a previous call), so dirname has been copied into
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* matchname already.
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*/
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while ((file = readdir(wild_dir)) != (struct dirent *)NULL) {
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Trace((stderr, "do_wild: readdir returns %s\n",
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FnFilter1(file->d_name)));
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if (file->d_name[0] == '.' && wildname[0] != '.')
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continue; /* Unix: '*' and '?' do not match leading dot */
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if (match(file->d_name, wildname, 0 WISEP)) { /* 0 == case sens. */
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if (have_dirname) {
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/* strcpy(matchname, dirname); */
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strcpy(matchname+dirnamelen, file->d_name);
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} else
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strcpy(matchname, file->d_name);
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return matchname;
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}
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}
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closedir(wild_dir); /* have read at least one entry; nothing left */
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wild_dir = (DIR *)NULL;
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notfirstcall = FALSE; /* reset for new wildspec */
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if (have_dirname)
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free(dirname);
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return (char *)NULL;
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} /* end function do_wild() */
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#endif /* !SFX */
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/*********************************/
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/* Function ef_scan_for_tandem() */
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/*********************************/
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static nsk_file_attrs *ef_scan_for_tandem(ef_buf, ef_len)
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uch *ef_buf; /* buffer containing extra field */
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unsigned ef_len; /* total length of extra field */
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{
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unsigned eb_id;
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unsigned eb_len;
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/*---------------------------------------------------------------------------
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This function scans the extra field for EF_TANDEM
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-------------------------------------------------------------------------*/
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if (ef_buf == NULL)
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return NULL;
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while (ef_len >= EB_HEADSIZE) {
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eb_id = makeword(EB_ID + ef_buf);
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eb_len = makeword(EB_LEN + ef_buf);
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if (eb_len > (ef_len - EB_HEADSIZE)) {
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/* discovered some extra field inconsistency! */
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TTrace((stderr,
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"ef_scan_for_tandem: block length %u > rest ef_size %u\n", eb_len,
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ef_len - EB_HEADSIZE));
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break;
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}
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switch (eb_id) {
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case EF_TANDEM:
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return (nsk_file_attrs *)(char *)(ef_buf + EB_HEADSIZE);
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break;
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default:
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break;
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}
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/* Skip this extra field block */
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ef_buf += (eb_len + EB_HEADSIZE);
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ef_len -= (eb_len + EB_HEADSIZE);
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}
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return NULL;
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}
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/***************************/
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/* Function open_outfile() */
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/***************************/
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int open_outfile(__G) /* return 1 if fail */
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__GDEF
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{
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int fdesc;
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short fnum, err, len;
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int priext, secext;
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short maxext, filecode, blocksize;
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#define alist_items 1
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#define vlist_bytes 2
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short alist[alist_items]={42};
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unsigned short vlist[alist_items];
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short extra, *err_item=&extra;
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nsk_file_attrs *znsk_attr;
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ulg eof, pages;
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char nsk_work[FILENAME_MAX + 1], *nsk_fname=&nsk_work[0];
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#ifdef DLL
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if (G.redirect_data)
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return (redirect_outfile(__G) == FALSE);
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#endif
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if (SSTAT(G.filename, &G.statbuf) == 0) {
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Trace((stderr, "open_outfile: stat(%s) returns 0: file exists\n",
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FnFilter1(G.filename)));
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if (unlink(G.filename) != 0) {
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Trace((stderr, "open_outfile: existing file %s is read-only\n",
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FnFilter1(G.filename)));
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chmod(G.filename, S_IRUSR | S_IWUSR);
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Trace((stderr, "open_outfile: %s now writable\n",
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FnFilter1(G.filename)));
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if (unlink(G.filename) != 0) {
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Info(slide, 0x401, ((char *)slide,
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LoadFarString(CannotDeleteOldFile), FnFilter1(G.filename)));
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return 1;
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}
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}
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Trace((stderr, "open_outfile: %s now deleted\n",
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FnFilter1(G.filename)));
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}
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/* Set up Tandem specific file information if present */
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znsk_attr = ef_scan_for_tandem(G.extra_field, G.lrec.extra_field_length);
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if (znsk_attr != NULL) {
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/* Set extent sizes */
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priext = znsk_attr->priext;
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secext = znsk_attr->secext;
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maxext = (int) znsk_attr->maxext;
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/* If original file was Enscribe and text then recreate as Edit */
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filecode = (znsk_attr->filetype != NSK_UNSTRUCTURED ?
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(G.pInfo->textmode ? NSK_EDITFILECODE : NSK_UNSTRUCTURED) :
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znsk_attr->filecode);
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blocksize = znsk_attr->block;
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} else {
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/* Try to work out some decent sizes based on how big the file is */
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eof = G.lrec.ucsize;
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pages = (eof/2048) + 2;
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if (pages <= 500) {
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priext = pages; /* fits into one extent */
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maxext = 16;
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} else {
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priext = 500; /* Try and fit into 500 page chunks */
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maxext = pages/(priext - 50); /* Allow for Enscribe overhead */
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if (maxext > 978) {
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priext = eof >> 10; /* 512 equal extents */
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maxext = 978; /* 2048 * 512 == 2^10 */
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}
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}
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secext = priext;
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filecode = (G.pInfo->textmode ? NSK_EDITFILECODE : NSK_UNSTRUCTURED);
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blocksize = TANDEM_BLOCKSIZE;
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}
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if ((fdesc = creat(G.filename,,priext,secext)) != -1){
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fnum = fdtogfn ((short)fdesc);
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err = (SETMODE (fnum, SET_FILE_BUFFERSIZE, blocksize) != CCE);
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err = (SETMODE (fnum, SET_FILE_BUFFERED, 0, 0) != CCE);
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err = (SETMODE (fnum, SET_FILE_BUFFERED, 0, 1) != CCE);
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err = (SETMODE (fnum, SET_FILE_MAXEXTENTS, maxext) != CCE);
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err = close(fdesc);
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vlist[0] = filecode;
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/* Note that FILE_ALTERLIST_ expects uppercase names */
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/* Need to call strlen and upshift */
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len = strlen(G.filename);
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err = STRING_UPSHIFT_(G.filename,
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len,
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nsk_fname,
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len);
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err = FILE_ALTERLIST_(nsk_fname,
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len,
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alist,
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alist_items,
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vlist,
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vlist_bytes,
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,
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err_item);
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};
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G.outfile = fopen(G.filename, (G.pInfo->textmode ? FOPWT : FOPW));
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if (G.outfile == (FILE *)NULL) {
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Info(slide, 1, ((char *)slide, LoadFarString(CannotCreateFile),
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FnFilter1(G.filename)));
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return 1;
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}
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#ifdef USE_FWRITE
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#ifdef _IOFBF /* make output fully buffered (works just about like write()) */
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setvbuf(G.outfile, (char *)slide, _IOFBF, WSIZE);
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#else
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setbuf(G.outfile, (char *)slide);
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#endif
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#endif /* USE_FWRITE */
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return 0;
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} /* end function open_outfile() */
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/**********************/
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/* Function mapattr() */
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/**********************/
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int mapattr(__G)
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__GDEF
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{
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ulg tmp = G.crec.external_file_attributes;
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switch (G.pInfo->hostnum) {
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case AMIGA_:
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tmp = (unsigned)(tmp>>17 & 7); /* Amiga RWE bits */
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G.pInfo->file_attr = (unsigned)(tmp<<6 | tmp<<3 | tmp);
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break;
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case THEOS_:
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tmp &= 0xF1FFFFFFL;
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if ((tmp & 0xF0000000L) != 0x40000000L)
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tmp &= 0x01FFFFFFL; /* not a dir, mask all ftype bits */
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else
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tmp &= 0x41FFFFFFL; /* leave directory bit as set */
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/* fall through! */
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case TANDEM_:
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case UNIX_:
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case VMS_:
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case ACORN_:
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case ATARI_:
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case ATHEOS_:
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case BEOS_:
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case QDOS_:
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G.pInfo->file_attr = (unsigned)(tmp >> 16);
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if (G.pInfo->file_attr != 0 || !G.extra_field) {
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return 0;
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} else {
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/* Some (non-Info-ZIP) implementations of Zip for Unix and
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VMS (and probably others ??) leave 0 in the upper 16-bit
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part of the external_file_attributes field. Instead, they
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store file permission attributes in some extra field.
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As a work-around, we search for the presence of one of
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these extra fields and fall back to the MSDOS compatible
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part of external_file_attributes if one of the known
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e.f. types has been detected.
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Later, we might implement extraction of the permission
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bits from the VMS extra field. But for now, the work-around
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should be sufficient to provide "readable" extracted files.
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(For ASI Unix e.f., an experimental remap of the e.f.
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mode value IS already provided!)
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*/
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ush ebID;
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unsigned ebLen;
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uch *ef = G.extra_field;
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unsigned ef_len = G.crec.extra_field_length;
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int r = FALSE;
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while (!r && ef_len >= EB_HEADSIZE) {
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ebID = makeword(ef);
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ebLen = (unsigned)makeword(ef+EB_LEN);
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if (ebLen > (ef_len - EB_HEADSIZE))
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/* discoverd some e.f. inconsistency! */
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break;
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switch (ebID) {
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case EF_ASIUNIX:
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if (ebLen >= (EB_ASI_MODE+2)) {
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G.pInfo->file_attr =
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(unsigned)makeword(ef+(EB_HEADSIZE+EB_ASI_MODE));
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/* force stop of loop: */
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ef_len = (ebLen + EB_HEADSIZE);
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break;
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}
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/* else: fall through! */
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case EF_PKVMS:
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/* "found nondecypherable e.f. with perm. attr" */
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r = TRUE;
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default:
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break;
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}
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ef_len -= (ebLen + EB_HEADSIZE);
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ef += (ebLen + EB_HEADSIZE);
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}
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if (!r)
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return 0;
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}
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/* fall through! */
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/* all remaining cases: expand MSDOS read-only bit into write perms */
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case FS_FAT_:
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/* PKWARE's PKZip for Unix marks entries as FS_FAT_, but stores the
|
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* Unix attributes in the upper 16 bits of the external attributes
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* field, just like Info-ZIP's Zip for Unix. We try to use that
|
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* value, after a check for consistency with the MSDOS attribute
|
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* bits (see below).
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*/
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G.pInfo->file_attr = (unsigned)(tmp >> 16);
|
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/* fall through! */
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case FS_HPFS_:
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case FS_NTFS_:
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case MAC_:
|
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case TOPS20_:
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default:
|
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/* Ensure that DOS subdir bit is set when the entry's name ends
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* in a '/'. Some third-party Zip programs fail to set the subdir
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* bit for directory entries.
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*/
|
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if ((tmp & 0x10) == 0) {
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extent fnlen = strlen(G.filename);
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if (fnlen > 0 && G.filename[fnlen-1] == '/')
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tmp |= 0x10;
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}
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/* read-only bit --> write perms; subdir bit --> dir exec bit */
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tmp = !(tmp & 1) << 1 | (tmp & 0x10) >> 4;
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if ((G.pInfo->file_attr & 0700) == (unsigned)(0400 | tmp<<6))
|
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/* keep previous G.pInfo->file_attr setting, when its "owner"
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* part appears to be consistent with DOS attribute flags!
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*/
|
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return 0;
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G.pInfo->file_attr = (unsigned)(0444 | tmp<<6 | tmp<<3 | tmp);
|
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break;
|
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} /* end switch (host-OS-created-by) */
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|
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/* for originating systems without concept of "group," "other," "system" */
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umask( (int)(tmp=umask(0)) ); /* apply mask to expanded r/w(/x) perms */
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G.pInfo->file_attr &= ~tmp;
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return 0;
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} /* end function mapattr() */
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/************************/
|
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/* Function mapname() */
|
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/************************/
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|
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int mapname(__G__ renamed)
|
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__GDEF
|
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int renamed;
|
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/*
|
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* returns:
|
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* MPN_OK - no problem detected
|
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* MPN_INF_TRUNC - caution (truncated filename)
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* MPN_INF_SKIP - info "skip entry" (dir doesn't exist)
|
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* MPN_ERR_SKIP - error -> skip entry
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* MPN_ERR_TOOLONG - error -> path is too long
|
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* MPN_NOMEM - error (memory allocation failed) -> skip entry
|
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* [also MPN_VOL_LABEL, MPN_CREATED_DIR]
|
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*/
|
|
{
|
|
char pathcomp[FILNAMSIZ]; /* path-component buffer */
|
|
char *pp, *cp; /* character pointers */
|
|
char *lastsemi=(char *)NULL; /* pointer to last semi-colon in pathcomp */
|
|
int error = MPN_OK;
|
|
register unsigned workch; /* hold the character being tested */
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|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Initialize various pointers and counters and stuff.
|
|
---------------------------------------------------------------------------*/
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|
|
if (G.pInfo->vollabel)
|
|
return MPN_VOL_LABEL; /* can't set disk volume labels on Tandem */
|
|
|
|
/* can create path as long as not just freshening, or if user told us */
|
|
G.create_dirs = (!uO.fflag || renamed);
|
|
|
|
created_dir = FALSE; /* not yet */
|
|
|
|
/* user gave full pathname: don't prepend rootpath */
|
|
renamed_fullpath = (renamed && (*G.filename == '/'));
|
|
|
|
if (checkdir(__G__ (char *)NULL, INIT) == MPN_NOMEM)
|
|
return MPN_NOMEM; /* initialize path buffer, unless no memory */
|
|
|
|
/* TANDEM - call in2ex */
|
|
pp = in2ex(__G__ G.filename);
|
|
if (pp == (char *)NULL)
|
|
return MPN_NOMEM;
|
|
strcpy(G.filename, pp);
|
|
free(pp);
|
|
|
|
*pathcomp = '\0'; /* initialize translation buffer */
|
|
pp = pathcomp; /* point to translation buffer */
|
|
/* directories have already been junked in in2ex() */
|
|
cp = G.filename; /* point to internal zipfile-member pathname */
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Begin main loop through characters in filename.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
while ((workch = (uch)*cp++) != 0) {
|
|
|
|
switch (workch) { /* includes space char, let checkdir handle it */
|
|
case TANDEM_DELIMITER: /* can assume -j flag not given */
|
|
*pp = '\0';
|
|
if (((error = checkdir(__G__ pathcomp, APPEND_DIR))
|
|
& MPN_MASK) > MPN_INF_TRUNC)
|
|
return error;
|
|
pp = pathcomp; /* reset conversion buffer for next piece */
|
|
lastsemi = (char *)NULL; /* leave direct. semi-colons alone */
|
|
break;
|
|
|
|
case ';': /* VMS version (or DEC-20 attrib?) */
|
|
lastsemi = pp;
|
|
*pp++ = ';'; /* keep for now; remove VMS ";##" */
|
|
break; /* later, if requested */
|
|
|
|
default:
|
|
/* allow European characters in filenames: */
|
|
if (isprint(workch) || (128 <= workch && workch <= 254))
|
|
*pp++ = (char)workch;
|
|
} /* end switch */
|
|
|
|
} /* end while loop */
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Report if directory was created (and no file to create: filename ended
|
|
in '/'), check name to be sure it exists, and combine path and name be-
|
|
fore exiting.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (G.filename[strlen(G.filename) - 1] == TANDEM_DELIMITER) {
|
|
checkdir(__G__ G.filename, GETPATH);
|
|
if (created_dir) {
|
|
if (QCOND2) {
|
|
Info(slide, 0, ((char *)slide, " creating: %s\n",
|
|
FnFilter1(G.filename)));
|
|
}
|
|
/* set dir time (note trailing '/') */
|
|
return (error & ~MPN_MASK) | MPN_CREATED_DIR;
|
|
}
|
|
/* dir existed already; don't look for data to extract */
|
|
return (error & ~MPN_MASK) | MPN_INF_SKIP;
|
|
}
|
|
|
|
*pp = '\0'; /* done with pathcomp: terminate it */
|
|
|
|
/* if not saving them, remove VMS version numbers (appended ";###") */
|
|
if (!uO.V_flag && lastsemi) {
|
|
pp = lastsemi + 1;
|
|
while (isdigit((uch)(*pp)))
|
|
++pp;
|
|
if (*pp == '\0') /* only digits between ';' and end: nuke */
|
|
*lastsemi = '\0';
|
|
}
|
|
|
|
if (*pathcomp == '\0') {
|
|
Info(slide, 1, ((char *)slide, "mapname: conversion of %s failed\n",
|
|
FnFilter1(G.filename)));
|
|
return (error & ~MPN_MASK) | MPN_ERR_SKIP;
|
|
}
|
|
|
|
checkdir(__G__ pathcomp, APPEND_NAME); /* returns 1 if truncated: care? */
|
|
checkdir(__G__ G.filename, GETPATH);
|
|
|
|
return error;
|
|
|
|
} /* end function mapname() */
|
|
|
|
|
|
/***********************/
|
|
/* Function checkdir() */
|
|
/***********************/
|
|
|
|
int checkdir(__G__ pathcomp, flag)
|
|
__GDEF
|
|
char *pathcomp;
|
|
int flag;
|
|
/*
|
|
* returns:
|
|
* MPN_OK - no problem detected
|
|
* MPN_INF_TRUNC - (on APPEND_NAME) truncated filename
|
|
* MPN_INF_SKIP - path doesn't exist, not allowed to create
|
|
* MPN_ERR_SKIP - path doesn't exist, tried to create and failed; or path
|
|
* exists and is not a directory, but is supposed to be
|
|
* MPN_ERR_TOOLONG - path is too long
|
|
* MPN_NOMEM - can't allocate memory for filename buffers
|
|
*/
|
|
/* By using in2ex() to pre-process the filename we do not need to worry
|
|
about the lengths of filename parts. We just need to cope with mapping the
|
|
pseudo file extensions properly of the actual filename (last part of name).
|
|
e.g. "tandem c" -> tandemc
|
|
"revsion.h" -> revisioh
|
|
*/
|
|
{
|
|
static int rootlen = 0; /* length of rootpath */
|
|
static char *rootpath; /* user's "extract-to" directory */
|
|
static char *buildpath; /* full path (so far) to extracted file */
|
|
static char *end; /* pointer to end of buildpath ('\0') */
|
|
|
|
# define FN_MASK 7
|
|
# define FUNCTION (flag & FN_MASK)
|
|
|
|
char fname[FILENAME_MAX + 1];
|
|
short fnamelen, extlen, trunclen, i;
|
|
char ext[EXTENSION_MAX + 1];
|
|
char *ptr;
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
APPEND_DIR: append the path component to the path being built and check
|
|
for its existence. If doesn't exist and we are creating directories, do
|
|
so for this one; else signal success or error as appropriate.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (FUNCTION == APPEND_DIR) {
|
|
int too_long = FALSE;
|
|
|
|
Trace((stderr, "appending dir segment [%s]\n", FnFilter1(pathcomp)));
|
|
while ((*end = *pathcomp++) != '\0')
|
|
++end;
|
|
|
|
if (stat(buildpath, &G.statbuf)) { /* path doesn't exist */
|
|
if (!G.create_dirs) { /* told not to create (freshening) */
|
|
free(buildpath);
|
|
return MPN_INF_SKIP; /* path doesn't exist: nothing to do */
|
|
}
|
|
if (mkdir(buildpath, 0777) == -1) { /* create the directory */
|
|
Info(slide, 1, ((char *)slide,
|
|
"checkdir error: cannot create %s\n\
|
|
unable to process %s.\n",
|
|
FnFilter2(buildpath), FnFilter1(G.filename)));
|
|
free(buildpath);
|
|
/* path didn't exist, tried to create, failed */
|
|
return MPN_ERR_SKIP;
|
|
}
|
|
created_dir = TRUE;
|
|
} else if (!S_ISDIR(G.statbuf.st_mode)) {
|
|
Info(slide, 1, ((char *)slide,
|
|
"checkdir error: %s exists but is not directory\n\
|
|
unable to process %s.\n",
|
|
FnFilter2(buildpath), FnFilter1(G.filename)));
|
|
free(buildpath);
|
|
/* path existed but wasn't dir */
|
|
return MPN_ERR_SKIP;
|
|
}
|
|
*end++ = TANDEM_DELIMITER;
|
|
*end = '\0';
|
|
Trace((stderr, "buildpath now = [%s]\n", FnFilter1(buildpath)));
|
|
return MPN_OK;
|
|
|
|
} /* end if (FUNCTION == APPEND_DIR) */
|
|
|
|
/*---------------------------------------------------------------------------
|
|
GETPATH: copy full path to the string pointed at by pathcomp, and free
|
|
buildpath.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (FUNCTION == GETPATH) {
|
|
strcpy(pathcomp, buildpath);
|
|
Trace((stderr, "getting and freeing path [%s]\n",
|
|
FnFilter1(pathcomp)));
|
|
free(buildpath);
|
|
buildpath = end = (char *)NULL;
|
|
return MPN_OK;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
APPEND_NAME: assume the path component is the filename; append it and
|
|
return without checking for existence.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (FUNCTION == APPEND_NAME) {
|
|
Trace((stderr, "appending filename [%s]\n", FnFilter1(pathcomp)));
|
|
|
|
if (!uO.rflag /* Do not add extension if asked */
|
|
&& parsename(pathcomp, fname, ext))
|
|
{
|
|
fnamelen = strlen(fname);
|
|
extlen = strlen(ext);
|
|
if (fnamelen+extlen > MAXFILEPARTLEN) {
|
|
/* Doesn't fit. Best approx is to use up to three characters
|
|
from extension and place these on the end of as much of the
|
|
start of the filename part as possible.
|
|
*/
|
|
if (extlen > EXTENSION_MAX)
|
|
extlen = EXTENSION_MAX;
|
|
trunclen = MAXFILEPARTLEN - extlen;
|
|
ptr = fname;
|
|
for (i=0; i < trunclen; i++)
|
|
*end++ = *ptr++;
|
|
ptr = ext;
|
|
for (i=0; i < extlen; i++)
|
|
*end++ = *ptr++;
|
|
*end = '\0'; /* mark end of string */
|
|
}
|
|
else {
|
|
/* Just join parts end to end */
|
|
ptr = fname;
|
|
while ((*end = *ptr++) != '\0')
|
|
++end;
|
|
ptr = ext;
|
|
while ((*end = *ptr++) != '\0')
|
|
++end;
|
|
}
|
|
}
|
|
else
|
|
while ((*end = *pathcomp++) != '\0')
|
|
++end;
|
|
|
|
Trace((stderr, "buildpath now = [%s]\n", FnFilter1(buildpath)));
|
|
/* could check for existence here, prompt for new name... */
|
|
return MPN_OK;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
INIT: allocate and initialize buffer space for the file currently being
|
|
extracted. If file was renamed with an absolute path, don't prepend the
|
|
extract-to path.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
/* GRR: for VMS and TOPS-20, add up to 13 to strlen */
|
|
|
|
if (FUNCTION == INIT) {
|
|
Trace((stderr, "initializing buildpath to "));
|
|
if ((buildpath = (char *)malloc(strlen(G.filename)+rootlen+1))
|
|
== (char *)NULL)
|
|
return MPN_NOMEM;
|
|
if ((rootlen > 0) && !renamed_fullpath) {
|
|
strcpy(buildpath, rootpath);
|
|
end = buildpath + rootlen;
|
|
} else {
|
|
*buildpath = '\0';
|
|
end = buildpath;
|
|
}
|
|
Trace((stderr, "[%s]\n", FnFilter1(buildpath)));
|
|
return MPN_OK;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
ROOT: if appropriate, store the path in rootpath and create it if
|
|
necessary; else assume it's a zipfile member and return. This path
|
|
segment gets used in extracting all members from every zipfile specified
|
|
on the command line.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
#if (!defined(SFX) || defined(SFX_EXDIR))
|
|
if (FUNCTION == ROOT) {
|
|
Trace((stderr, "initializing root path to [%s]\n",
|
|
FnFilter1(pathcomp)));
|
|
if (pathcomp == (char *)NULL) {
|
|
rootlen = 0;
|
|
return MPN_OK;
|
|
}
|
|
if (rootlen > 0) /* rootpath was already set, nothing to do */
|
|
return MPN_OK;
|
|
if ((rootlen = strlen(pathcomp)) > 0) {
|
|
char *tmproot;
|
|
|
|
if ((tmproot = (char *)malloc(rootlen+2)) == (char *)NULL) {
|
|
rootlen = 0;
|
|
return MPN_NOMEM;
|
|
}
|
|
strcpy(tmproot, pathcomp);
|
|
if (tmproot[rootlen-1] == TANDEM_DELIMITER) {
|
|
tmproot[--rootlen] = '\0';
|
|
}
|
|
if (rootlen > 0 && (stat(tmproot, &G.statbuf) ||
|
|
!S_ISDIR(G.statbuf.st_mode)))
|
|
{ /* path does not exist */
|
|
if (!G.create_dirs /* || iswild(tmproot) */ ) {
|
|
free(tmproot);
|
|
rootlen = 0;
|
|
/* skip (or treat as stored file) */
|
|
return MPN_INF_SKIP;
|
|
}
|
|
/* create the directory (could add loop here scanning tmproot
|
|
* to create more than one level, but why really necessary?) */
|
|
if (mkdir(tmproot, 0777) == -1) {
|
|
Info(slide, 1, ((char *)slide,
|
|
"checkdir: cannot create extraction directory: %s\n",
|
|
FnFilter1(tmproot)));
|
|
free(tmproot);
|
|
rootlen = 0;
|
|
/* path didn't exist, tried to create, and failed: */
|
|
/* file exists, or 2+ subdir levels required */
|
|
return MPN_ERR_SKIP;
|
|
}
|
|
}
|
|
tmproot[rootlen++] = TANDEM_DELIMITER;
|
|
tmproot[rootlen] = '\0';
|
|
if ((rootpath = (char *)realloc(tmproot, rootlen+1)) == NULL) {
|
|
free(tmproot);
|
|
rootlen = 0;
|
|
return MPN_NOMEM;
|
|
}
|
|
Trace((stderr, "rootpath now = [%s]\n", FnFilter1(rootpath)));
|
|
}
|
|
return MPN_OK;
|
|
}
|
|
#endif /* !SFX || SFX_EXDIR */
|
|
|
|
/*---------------------------------------------------------------------------
|
|
END: free rootpath, immediately prior to program exit.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (FUNCTION == END) {
|
|
Trace((stderr, "freeing rootpath\n"));
|
|
if (rootlen > 0) {
|
|
free(rootpath);
|
|
rootlen = 0;
|
|
}
|
|
return MPN_OK;
|
|
}
|
|
|
|
return MPN_INVALID; /* should never reach */
|
|
|
|
} /* end function checkdir() */
|
|
|
|
|
|
|
|
/********************/
|
|
/* Function mkdir() */
|
|
/********************/
|
|
|
|
int mkdir(path, mode)
|
|
const char *path; /* both */
|
|
mode_t mode; /* ignored */
|
|
/*
|
|
* returns: 0 - successful
|
|
* -1 - failed (errno not set, however)
|
|
*/
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
/****************************/
|
|
/* Function close_outfile() */
|
|
/****************************/
|
|
|
|
void close_outfile(__G) /* GRR: change to return PK-style warning level */
|
|
__GDEF
|
|
{
|
|
union {
|
|
iztimes t3; /* mtime, atime, ctime */
|
|
ztimbuf t2; /* modtime, actime */
|
|
} zt;
|
|
ulg z_uidgid[2];
|
|
unsigned eb_izux_flg;
|
|
nsk_file_attrs *znsk_attr;
|
|
short err;
|
|
unsigned short len;
|
|
|
|
#define alist_items 1
|
|
#define vlist_bytes 2
|
|
short alist[alist_items]={42 };
|
|
unsigned short vlist[alist_items];
|
|
short extra, *err_item=&extra;
|
|
|
|
char nsk_work[FILENAME_MAX + 1], *nsk_fname=&nsk_work[0];
|
|
|
|
fclose(G.outfile);
|
|
|
|
/* Set up Tandem specific file information if present */
|
|
znsk_attr = ef_scan_for_tandem(G.extra_field, G.lrec.extra_field_length);
|
|
|
|
/* Currently we do not create 'proper' Tandem files in unzip - we only */
|
|
/* create unstructured (180) or edit (101) files. This code allows */
|
|
/* some limited support for restoration of Tandem file attributes */
|
|
|
|
if (znsk_attr != NULL) {
|
|
/* Reset File Code */
|
|
if (!uO.bflag && !G.pInfo->textmode
|
|
&& znsk_attr->filetype == NSK_UNSTRUCTURED) {
|
|
/* leave type 101 files alone */
|
|
vlist[0] = znsk_attr->filecode;
|
|
|
|
/* Note that FILE_ALTERLIST_ expect uppercase names and that */
|
|
/* G.lrec.filename_length is the length of original zipped filename */
|
|
/* not any 'rename' name. Need to re call strlen and upshift */
|
|
len = strlen(G.filename);
|
|
err = STRING_UPSHIFT_(G.filename,
|
|
len,
|
|
nsk_fname,
|
|
len);
|
|
|
|
err = FILE_ALTERLIST_(nsk_fname,
|
|
len,
|
|
alist,
|
|
alist_items,
|
|
vlist,
|
|
vlist_bytes,
|
|
,
|
|
err_item);
|
|
}
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Convert from MSDOS-format local time and date to Unix-format 32-bit GMT
|
|
time: adjust base year from 1980 to 1970, do usual conversions from
|
|
yy/mm/dd hh:mm:ss to elapsed seconds, and account for timezone and day-
|
|
light savings time differences. If we have a Unix extra field, however,
|
|
we're laughing: both mtime and atime are ours. On the other hand, we
|
|
then have to check for restoration of UID/GID.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
eb_izux_flg = (G.extra_field ? ef_scan_for_izux(G.extra_field,
|
|
G.lrec.extra_field_length, 0, G.lrec.last_mod_dos_datetime,
|
|
#ifdef IZ_CHECK_TZ
|
|
(G.tz_is_valid ? &(zt.t3) : NULL),
|
|
#else
|
|
&(zt.t3),
|
|
#endif
|
|
z_uidgid) : 0);
|
|
if (eb_izux_flg & EB_UT_FL_MTIME) {
|
|
TTrace((stderr, "\nclose_outfile: Unix e.f. modif. time = %ld\n",
|
|
zt.t3.mtime));
|
|
} else {
|
|
zt.t3.mtime = dos_to_unix_time(G.lrec.last_mod_dos_datetime);
|
|
}
|
|
if (eb_izux_flg & EB_UT_FL_ATIME) {
|
|
TTrace((stderr, "close_outfile: Unix e.f. access time = %ld\n",
|
|
zt.t3.atime));
|
|
} else {
|
|
zt.t3.atime = zt.t3.mtime;
|
|
TTrace((stderr, "\nclose_outfile: modification/access times = %ld\n",
|
|
zt.t3.mtime));
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Change the file's last modified time to that stored in the zipfile.
|
|
Not sure how (yet) or whether it's a good idea to set the last open time
|
|
---------------------------------------------------------------------------*/
|
|
|
|
/* skip restoring time stamps on user's request */
|
|
if (uO.D_flag <= 1) {
|
|
/* set the file's access and modification times */
|
|
if (utime(G.filename, &(zt.t2)))
|
|
if (uO.qflag)
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"warning: cannot set times for %s\n",
|
|
FnFilter1(G.filename)));
|
|
else
|
|
Info(slide, 0x201, ((char *)slide,
|
|
" (warning) cannot set times"));
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Change the file permissions from default ones to those stored in the
|
|
zipfile.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
#ifndef NO_CHMOD
|
|
if (chmod(G.filename, 0xffff & G.pInfo->file_attr))
|
|
perror("chmod (file attributes) error");
|
|
#endif
|
|
|
|
/*---------------------------------------------------------------------------
|
|
if -X option was specified and we have UID/GID info, restore it
|
|
this must come after the file security and modtimes changes - since once
|
|
we have secured the file to somebody else we cannot access it again.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (uO.X_flag && eb_izux_flg & EB_UX2_VALID) {
|
|
TTrace((stderr, "close_outfile: restoring Unix UID/GID info\n"));
|
|
if (chown(G.filename, (uid_t)z_uidgid[0], (gid_t)z_uidgid[1]))
|
|
{
|
|
if (uO.qflag)
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"warning: cannot set UID %lu and/or GID %lu for %s\n",
|
|
z_uidgid[0], z_uidgid[1], FnFilter1(G.filename)));
|
|
else
|
|
Info(slide, 0x201, ((char *)slide,
|
|
" (warning) cannot set UID %lu and/or GID %lu",
|
|
z_uidgid[0], z_uidgid[1]));
|
|
}
|
|
}
|
|
|
|
} /* end function close_outfile() */
|
|
|
|
|
|
#ifndef SFX
|
|
|
|
/************************/
|
|
/* Function version() */
|
|
/************************/
|
|
|
|
void version(__G)
|
|
__GDEF
|
|
{
|
|
|
|
/* Pyramid, NeXT have problems with huge macro expansion, too: no Info() */
|
|
sprintf((char *)slide, LoadFarString(CompiledWith),
|
|
|
|
"C ",
|
|
"T9255D44 - (16OCT98)",
|
|
"NonStop ",
|
|
"(Tandem/NSK)",
|
|
|
|
#ifdef __DATE__
|
|
" on ", __DATE__
|
|
#else
|
|
"", ""
|
|
#endif
|
|
);
|
|
|
|
(*G.message)((zvoid *)&G, slide, (ulg)strlen((char *)slide), 0);
|
|
|
|
} /* end function version() */
|
|
|
|
#endif /* !SFX */
|