forked from KolibriOS/kolibrios
1020 lines
37 KiB
C
1020 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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atari.c
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Atari-specific routines for use with Info-ZIP's UnZip 5.1 and later.
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Contains: readdir()
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do_wild() <-- generic enough to put in fileio.c?
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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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stamp_file() [optional feature]
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version()
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Due to the amazing MiNT library being very, very close to BSD unix's
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library, I'm using the unix.c as a base for this. Note: If you're not
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going to compile this with the MiNT libraries (for GNU C, Turbo C, Pure C,
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Lattice C, or Heat & Serve C), you're going to be in for some nasty work.
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Most of the modifications in this file were made by Chris Herborth
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(cherborth@semprini.waterloo-rdp.on.ca) and /should/ be marked with [cjh].
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---------------------------------------------------------------------------*/
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#define UNZIP_INTERNAL
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#include "unzip.h"
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#include <dirent.h> /* MiNTlibs has dirent [cjh] */
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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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#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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/* 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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dir = NULL;
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return matchname;
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}
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/* break the wildspec into a directory part and a wildcard filename */
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if ((wildname = strrchr(wildspec, '/')) == (ZCONST char *)NULL) {
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dirname = ".";
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dirnamelen = 1;
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have_dirname = FALSE;
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wildname = wildspec;
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} else {
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++wildname; /* point at character after '/' */
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dirnamelen = wildname - 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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strncpy(dirname, wildspec, dirnamelen);
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dirname[dirnamelen] = '\0'; /* terminate for strcpy below */
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have_dirname = TRUE;
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}
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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", 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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/* Need something here for TOS filesystem? [cjh] */
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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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/* May need special TOS handling here. [cjh] */
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Trace((stderr, "do_wild: readdir returns %s\n", 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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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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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 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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int r;
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ulg tmp = G.crec.external_file_attributes;
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G.pInfo->file_attr = 0;
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/* initialized to 0 for check in "default" branch below... */
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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 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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case TANDEM_:
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r = FALSE;
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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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/* 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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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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}
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if (!r) {
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#ifdef SYMLINKS
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/* Check if the file is a (POSIX-compatible) symbolic link.
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* We restrict symlink support to those "made-by" hosts that
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* are known to support symbolic links.
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*/
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G.pInfo->symlink = S_ISLNK(G.pInfo->file_attr) &&
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SYMLINK_HOST(G.pInfo->hostnum);
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#endif
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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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#ifdef SYMLINKS
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/* Entries "made by FS_FAT_" could have been zipped on a
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* system that supports POSIX-style symbolic links.
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*/
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G.pInfo->symlink = S_ISLNK(G.pInfo->file_attr) &&
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(G.pInfo->hostnum == FS_FAT_);
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#endif
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return 0;
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}
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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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/* for originating systems with no 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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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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*/
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{
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char pathcomp[FILNAMSIZ]; /* path-component buffer */
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char *pp, *cp=(char *)NULL; /* character pointers */
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char *lastsemi=(char *)NULL; /* pointer to last semi-colon in pathcomp */
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#ifdef ACORN_FTYPE_NFS
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char *lastcomma=(char *)NULL; /* pointer to last comma in pathcomp */
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RO_extra_block *ef_spark; /* pointer Acorn FTYPE ef block */
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#endif
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int killed_ddot = FALSE; /* is set when skipping "../" pathcomp */
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int error = MPN_OK;
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register unsigned workch; /* hold the character being tested */
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/*---------------------------------------------------------------------------
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Initialize various pointers and counters and stuff.
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---------------------------------------------------------------------------*/
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if (G.pInfo->vollabel)
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return MPN_VOL_LABEL; /* can't set disk volume labels on Atari */
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/* can create path as long as not just freshening, or if user told us */
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G.create_dirs = (!uO.fflag || renamed);
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created_dir = FALSE; /* not yet */
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/* user gave full pathname: don't prepend rootpath */
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renamed_fullpath = (renamed && (*G.filename == '/'));
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if (checkdir(__G__ (char *)NULL, INIT) == MPN_NOMEM)
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return MPN_NOMEM; /* initialize path buffer, unless no memory */
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*pathcomp = '\0'; /* initialize translation buffer */
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pp = pathcomp; /* point to translation buffer */
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if (uO.jflag) /* junking directories */
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cp = (char *)strrchr(G.filename, '/');
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if (cp == (char *)NULL) /* no '/' or not junking dirs */
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cp = G.filename; /* point to internal zipfile-member pathname */
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else
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++cp; /* point to start of last component of path */
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/*---------------------------------------------------------------------------
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Begin main loop through characters in filename.
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---------------------------------------------------------------------------*/
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while ((workch = (uch)*cp++) != 0) {
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switch (workch) {
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case '/': /* can assume -j flag not given */
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*pp = '\0';
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if (strcmp(pathcomp, ".") == 0) {
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/* don't bother appending "./" to the path */
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*pathcomp = '\0';
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} else if (!uO.ddotflag && strcmp(pathcomp, "..") == 0) {
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/* "../" dir traversal detected, skip over it */
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*pathcomp = '\0';
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killed_ddot = TRUE; /* set "show message" flag */
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}
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/* when path component is not empty, append it now */
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if (*pathcomp != '\0' &&
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((error = checkdir(__G__ pathcomp, APPEND_DIR))
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& MPN_MASK) > MPN_INF_TRUNC)
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return error;
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pp = pathcomp; /* reset conversion buffer for next piece */
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lastsemi = (char *)NULL; /* leave direct. semi-colons alone */
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break;
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case ';': /* VMS version (or DEC-20 attrib?) */
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lastsemi = pp;
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*pp++ = ';'; /* keep for now; remove VMS ";##" */
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break; /* later, if requested */
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#ifdef ACORN_FTYPE_NFS
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case ',': /* NFS filetype extension */
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lastcomma = pp;
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*pp++ = ','; /* keep for now; may need to remove */
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break; /* later, if requested */
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#endif
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#ifdef MTS
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case ' ': /* change spaces to underscore under */
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*pp++ = '_'; /* MTS; leave as spaces under Unix */
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break;
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#endif
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default:
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/* allow European characters in filenames: */
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if (isprint(workch) || (128 <= workch && workch <= 254))
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*pp++ = (char)workch;
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} /* end switch */
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} /* end while loop */
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/* Show warning when stripping insecure "parent dir" path components */
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if (killed_ddot && QCOND2) {
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Info(slide, 0, ((char *)slide,
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"warning: skipped \"../\" path component(s) in %s\n",
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FnFilter1(G.filename)));
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if (!(error & ~MPN_MASK))
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error = (error & MPN_MASK) | PK_WARN;
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}
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/*---------------------------------------------------------------------------
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Report if directory was created (and no file to create: filename ended
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in '/'), check name to be sure it exists, and combine path and name be-
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fore exiting.
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---------------------------------------------------------------------------*/
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if (G.filename[strlen(G.filename) - 1] == '/') {
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checkdir(__G__ G.filename, GETPATH);
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if (created_dir) {
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if (QCOND2) {
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Info(slide, 0, ((char *)slide, " creating: %s\n",
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FnFilter1(G.filename)));
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}
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/* set dir time (note trailing '/') */
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return (error & ~MPN_MASK) | MPN_CREATED_DIR;
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}
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/* dir existed already; don't look for data to extract */
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return (error & ~MPN_MASK) | MPN_INF_SKIP;
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}
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*pp = '\0'; /* done with pathcomp: terminate it */
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|
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/* if not saving them, remove VMS version numbers (appended ";###") */
|
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if (!uO.V_flag && lastsemi) {
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pp = lastsemi + 1;
|
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while (isdigit((uch)(*pp)))
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++pp;
|
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if (*pp == '\0') /* only digits between ';' and end: nuke */
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*lastsemi = '\0';
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}
|
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|
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/* On UNIX (and compatible systems), "." and ".." are reserved for
|
|
* directory navigation and cannot be used as regular file names.
|
|
* These reserved one-dot and two-dot names are mapped to "_" and "__".
|
|
*/
|
|
if (strcmp(pathcomp, ".") == 0)
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*pathcomp = '_';
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else if (strcmp(pathcomp, "..") == 0)
|
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strcpy(pathcomp, "__");
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|
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#ifdef ACORN_FTYPE_NFS
|
|
/* translate Acorn filetype information if asked to do so */
|
|
if (uO.acorn_nfs_ext &&
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|
(ef_spark = (RO_extra_block *)
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getRISCOSexfield(G.extra_field, G.lrec.extra_field_length))
|
|
!= (RO_extra_block *)NULL)
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|
{
|
|
/* file *must* have a RISC OS extra field */
|
|
long ft = (long)makelong(ef_spark->loadaddr);
|
|
/*32-bit*/
|
|
if (lastcomma) {
|
|
pp = lastcomma + 1;
|
|
while (isxdigit((uch)(*pp))) ++pp;
|
|
if (pp == lastcomma+4 && *pp == '\0') *lastcomma='\0'; /* nuke */
|
|
}
|
|
if ((ft & 1<<31)==0) ft=0x000FFD00;
|
|
sprintf(pathcomp+strlen(pathcomp), ",%03x", (int)(ft>>8) & 0xFFF);
|
|
}
|
|
#endif /* ACORN_FTYPE_NFS */
|
|
|
|
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() */
|
|
|
|
|
|
|
|
|
|
#if 0 /*========== NOTES ==========*/
|
|
|
|
extract-to dir: a:path/
|
|
buildpath: path1/path2/ ... (NULL-terminated)
|
|
pathcomp: filename
|
|
|
|
mapname():
|
|
loop over chars in zipfile member name
|
|
checkdir(path component, COMPONENT | CREATEDIR) --> map as required?
|
|
(d:/tmp/unzip/) (disk:[tmp.unzip.)
|
|
(d:/tmp/unzip/jj/) (disk:[tmp.unzip.jj.)
|
|
(d:/tmp/unzip/jj/temp/) (disk:[tmp.unzip.jj.temp.)
|
|
finally add filename itself and check for existence? (could use with rename)
|
|
(d:/tmp/unzip/jj/temp/msg.outdir) (disk:[tmp.unzip.jj.temp]msg.outdir)
|
|
checkdir(name, GETPATH) --> copy path to name and free space
|
|
|
|
#endif /* 0 */
|
|
|
|
|
|
|
|
|
|
/***********************/
|
|
/* 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
|
|
*/
|
|
{
|
|
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)
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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;
|
|
/* SHORT_NAMES required for TOS, but it has to co-exist for minix fs... [cjh] */
|
|
#ifdef SHORT_NAMES
|
|
char *old_end = end;
|
|
#endif
|
|
|
|
Trace((stderr, "appending dir segment [%s]\n", FnFilter1(pathcomp)));
|
|
while ((*end = *pathcomp++) != '\0')
|
|
++end;
|
|
/* SHORT_NAMES required for TOS, but it has to co-exist for minix fs... [cjh] */
|
|
#ifdef SHORT_NAMES /* path components restricted to 14 chars, typically */
|
|
if ((end-old_end) > FILENAME_MAX) /* GRR: proper constant? */
|
|
*(end = old_end + FILENAME_MAX) = '\0';
|
|
#endif
|
|
|
|
/* GRR: could do better check, see if overrunning buffer as we go:
|
|
* check end-buildpath after each append, set warning variable if
|
|
* within 20 of FILNAMSIZ; then if var set, do careful check when
|
|
* appending. Clear variable when begin new path. */
|
|
|
|
if ((end-buildpath) > FILNAMSIZ-3) /* need '/', one-char name, '\0' */
|
|
too_long = TRUE; /* check if extracting directory? */
|
|
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 (too_long) {
|
|
Info(slide, 1, ((char *)slide,
|
|
"checkdir error: path too long: %s\n",
|
|
FnFilter1(buildpath)));
|
|
free(buildpath);
|
|
/* no room for filenames: fatal */
|
|
return MPN_ERR_TOOLONG;
|
|
}
|
|
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), FnFilter(G.filename)));
|
|
free(buildpath);
|
|
/* path existed but wasn't dir */
|
|
return MPN_ERR_SKIP;
|
|
}
|
|
if (too_long) {
|
|
Info(slide, 1, ((char *)slide,
|
|
"checkdir error: path too long: %s\n", FnFilter1(buildpath)));
|
|
free(buildpath);
|
|
/* no room for filenames: fatal */
|
|
return MPN_ERR_TOOLONG;
|
|
}
|
|
*end++ = '/';
|
|
*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) {
|
|
/* SHORT_NAMES required for TOS, but it has to co-exist for minix fs... [cjh] */
|
|
#ifdef SHORT_NAMES
|
|
char *old_end = end;
|
|
#endif
|
|
|
|
Trace((stderr, "appending filename [%s]\n", FnFilter1(pathcomp)));
|
|
while ((*end = *pathcomp++) != '\0') {
|
|
++end;
|
|
/* SHORT_NAMES required for TOS, but it has to co-exist for minix fs... [cjh] */
|
|
#ifdef SHORT_NAMES /* truncate name at 14 characters, typically */
|
|
if ((end-old_end) > FILENAME_MAX) /* GRR: proper constant? */
|
|
*(end = old_end + FILENAME_MAX) = '\0';
|
|
#endif
|
|
if ((end-buildpath) >= FILNAMSIZ) {
|
|
*--end = '\0';
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"checkdir warning: path too long; truncating\n\
|
|
%s\n -> %s\n",
|
|
FnFilter1(G.filename), FnFilter2(buildpath)));
|
|
return MPN_INF_TRUNC; /* filename truncated */
|
|
}
|
|
}
|
|
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 "));
|
|
#ifdef ACORN_FTYPE_NFS
|
|
if ((buildpath = (char *)malloc(strlen(G.filename)+rootlen+
|
|
(uO.acorn_nfs_ext ? 5 : 1)))
|
|
#else
|
|
if ((buildpath = (char *)malloc(strlen(G.filename)+rootlen+1))
|
|
#endif
|
|
== (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", 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] == '/') {
|
|
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++] = '/';
|
|
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 close_outfile() */
|
|
/****************************/
|
|
|
|
void close_outfile(__G) /* GRR: change to return PK-style warning level */
|
|
__GDEF
|
|
{
|
|
#ifdef USE_EF_UT_TIME
|
|
unsigned eb_izux_flg;
|
|
iztimes zt;
|
|
#endif
|
|
ztimbuf tp;
|
|
|
|
/*---------------------------------------------------------------------------
|
|
If symbolic links are supported, allocate storage for a symlink control
|
|
structure, put the uncompressed "data" and other required info in it, and
|
|
add the structure to the "deferred symlinks" chain. Since we know it's a
|
|
symbolic link to start with, we shouldn't have to worry about overflowing
|
|
unsigned ints with unsigned longs.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
/* symlinks allowed on minix filesystems [cjh]
|
|
* Hopefully this will work properly... We won't bother to try if
|
|
* MiNT isn't present; the symlink should fail if we're on a TOS
|
|
* filesystem.
|
|
* BUG: should we copy the original file to the "symlink" if the
|
|
* link fails?
|
|
*/
|
|
if (G.symlnk) {
|
|
extent ucsize = (extent)G.lrec.ucsize;
|
|
/* size of the symlink entry is the sum of
|
|
* (struct size (includes 1st '\0') + 1 additional trailing '\0'),
|
|
* system specific attribute data size (might be 0),
|
|
* and the lengths of name and link target.
|
|
*/
|
|
extent slnk_entrysize = (sizeof(slinkentry) + 1) +
|
|
ucsize + strlen(G.filename);
|
|
slinkentry *slnk_entry;
|
|
|
|
if (slnk_entrysize < ucsize) {
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"warning: symbolic link (%s) failed: mem alloc overflow\n",
|
|
FnFilter1(G.filename)));
|
|
fclose(G.outfile);
|
|
return;
|
|
}
|
|
|
|
if ((slnk_entry = (slinkentry *)malloc(slnk_entrysize)) == NULL) {
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"warning: symbolic link (%s) failed: no mem\n",
|
|
FnFilter1(G.filename)));
|
|
fclose(G.outfile);
|
|
return;
|
|
}
|
|
slnk_entry->next = NULL;
|
|
slnk_entry->targetlen = ucsize;
|
|
slnk_entry->attriblen = 0; /* don't set attributes for symlinks */
|
|
slnk_entry->target = slnk_entry->buf;
|
|
slnk_entry->fname = slnk_entry->target + ucsize + 1;
|
|
strcpy(slnk_entry->fname, G.filename);
|
|
|
|
/* move back to the start of the file to re-read the "link data" */
|
|
rewind(G.outfile);
|
|
|
|
if (fread(slnk_entry->target, 1, ucsize, G.outfile) != ucsize)
|
|
{
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"warning: symbolic link (%s) failed\n",
|
|
FnFilter1(G.filename)));
|
|
free(slnk_entry);
|
|
fclose(G.outfile);
|
|
return;
|
|
}
|
|
fclose(G.outfile); /* close "link" file for good... */
|
|
slnk_entry->target[ucsize] = '\0';
|
|
if (QCOND2)
|
|
Info(slide, 0, ((char *)slide, "-> %s ",
|
|
FnFilter1(slnk_entry->target)));
|
|
/* add this symlink record to the list of deferred symlinks */
|
|
if (G.slink_last != NULL)
|
|
G.slink_last->next = slnk_entry;
|
|
else
|
|
G.slink_head = slnk_entry;
|
|
G.slink_last = slnk_entry;
|
|
return;
|
|
}
|
|
|
|
fclose(G.outfile);
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
/* skip restoring time stamps on user's request */
|
|
if (uO.D_flag <= 1) {
|
|
#ifdef USE_EF_UT_TIME
|
|
eb_izux_flg = (G.extra_field
|
|
#ifdef IZ_CHECK_TZ
|
|
&& G.tz_is_valid
|
|
#endif
|
|
? ef_scan_for_izux(G.extra_field,
|
|
G.lrec.extra_field_length, 0,
|
|
G.lrec.last_mod_dos_datetime, &zt, NULL)
|
|
: 0);
|
|
if (eb_izux_flg & EB_UT_FL_MTIME) {
|
|
tp.modtime = zt.mtime;
|
|
TTrace((stderr,
|
|
"\nclose_outfile: Unix e.f. modif. time = %ld\n",
|
|
tp.modtime));
|
|
} else {
|
|
tp.modtime = dos_to_unix_time(G.lrec.last_mod_dos_datetime);
|
|
}
|
|
if (eb_izux_flg & EB_UT_FL_ATIME) {
|
|
tp.actime = zt.atime;
|
|
TTrace((stderr,
|
|
"close_outfile: Unix e.f. access time = %ld\n",
|
|
tp.actime));
|
|
} else {
|
|
tp.actime = tp.modtime;
|
|
TTrace((stderr,
|
|
"\nclose_outfile: modification/access times = %ld\n",
|
|
tp.modtime));
|
|
}
|
|
#else /* !USE_EF_UT_TIME */
|
|
tp.actime = tp.modtime
|
|
= dos_to_unix_time(G.lrec.last_mod_dos_datetime);
|
|
|
|
TTrace((stderr, "\nclose_outfile: modification/access times = %ld\n",
|
|
tp.modtime));
|
|
#endif /* ?USE_EF_UT_TIME */
|
|
|
|
/* set the file's access and modification times */
|
|
if (utime(G.filename, &tp))
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"warning: cannot set the time for %s\n",
|
|
FnFilter1(G.filename)));
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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
|
|
|
|
} /* end function close_outfile() */
|
|
|
|
|
|
|
|
|
|
#ifdef TIMESTAMP
|
|
|
|
/***************************/
|
|
/* Function stamp_file() */
|
|
/***************************/
|
|
|
|
int stamp_file(fname, modtime)
|
|
ZCONST char *fname;
|
|
time_t modtime;
|
|
{
|
|
ztimbuf tp;
|
|
|
|
tp.modtime = tp.actime = modtime;
|
|
return (utime(fname, &tp));
|
|
|
|
} /* end function stamp_file() */
|
|
|
|
#endif /* TIMESTAMP */
|
|
|
|
|
|
|
|
|
|
#ifndef SFX
|
|
|
|
/************************/
|
|
/* Function version() */
|
|
/************************/
|
|
|
|
void version(__G)
|
|
__GDEF
|
|
{
|
|
#ifdef __TURBOC__
|
|
char buf[40];
|
|
#endif
|
|
|
|
sprintf((char *)slide, LoadFarString(CompiledWith),
|
|
|
|
#ifdef __GNUC__
|
|
"gcc ", __VERSION__,
|
|
#else
|
|
# if 0
|
|
"cc ", (sprintf(buf, " version %d", _RELEASE), buf),
|
|
# else
|
|
# ifdef __TURBOC__
|
|
"Turbo C", (sprintf(buf, " (0x%04x = %d)", __TURBOC__, __TURBOC__), buf),
|
|
# else
|
|
"unknown compiler", "",
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef __MINT__
|
|
"Atari TOS/MiNT",
|
|
#else
|
|
"Atari TOS",
|
|
#endif
|
|
|
|
" (Atari ST/TT/Falcon030)",
|
|
|
|
#ifdef __DATE__
|
|
" on ", __DATE__
|
|
#else
|
|
"", ""
|
|
#endif
|
|
);
|
|
|
|
(*G.message)((zvoid *)&G, slide, (ulg)strlen((char *)slide), 0);
|
|
|
|
} /* end function version() */
|
|
|
|
#endif /* !SFX */
|