/*
Copyright (c) 1990-2007 Info-ZIP. All rights reserved.
See the accompanying file LICENSE, version 2000-Apr-09 or later
(the contents of which are also included in unzip.h) for terms of use.
If, for some reason, these files are missing, the Info-ZIP license
also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
*/
/*---------------------------------------------------------------------------
qdos.c
QDOS-specific routines for use with Info-ZIP's UnZip 5.3 and later.
Contains: Qstrfix()
QFilename()
QMatch()
chowner()
Qgetch()
QReturn()
LastDir()
screensize()
do_wild() <-- generic enough to put in file_io.c?
mapattr()
mapname()
checkdir()
qfix()
close_outfile()
stamp_file()
getp()
version()
---------------------------------------------------------------------------*/
#define UNZIP_INTERNAL
#include "unzip.h"
#include "crypt.h"
#include "ttyio.h"
#include <dirent.h>
#include "izqdos.h"
#include "unzvers.h"
#ifndef SFX
char _prog_name[] = "UnZip";
#else
char _prog_name[] = "??Special Flag for unzipsfx hack ??";
#endif
/* sorrid hack at request of GRR follows; hope the compiler stays kind to us */
char _version[] = {UZ_MAJORVER+'0','.',UZ_MINORVER+'0',UZ_PATCHLEVEL+'0'};
char _extra[] = " " UZ_BETALEVEL;
char _copyright[] = "(c) Info-ZIP Group";
char * _endmsg = NULL;
long _stack = 16*1024; /* huge stack (for qdos) */
extern void consetup_title(chanid_t,struct WINDOWDEF *);
void (*_consetup)(chanid_t,struct WINDOWDEF *) = consetup_title;
struct WINDOWDEF _condetails =
{
2,
1,
0,
7,
500,
220,
2,
30
};
static jobid_t chowner(chanid_t chan)
{
extern char *_sys_var;
char *scht;
long *cdb;
long jid;
scht = *((char **)(_sys_var + 0x78));
cdb = *(long **)((long *)scht + (chan & 0xffff));
jid = *(cdb + 2);
return jid;
}
int QReturn(int err)
{
jobid_t me,you;
me = getpid();
you = chowner(getchid(0));
if((me == you) && ((qlflag & 4) == 0))
{
if(isatty(0) && isatty(2) && qlwait)
{
char c = 0;
fputs("Press a key to exit", stderr);
if((io_fbyte(getchid(0), qlwait, &c) == 0) && c == 27)
{
io_fbyte(getchid(0), -1, &c);
}
}
}
if(err > 0) err = -err; /* We like -ve err nos (exclusively, alas) */
exit(err);
}
#ifndef FUNZIP
static int created_dir; /* used in mapname(), checkdir() */
static int renamed_fullpath; /* ditto */
char *Qstrfix (char *p)
{
char *q;
for (q = p; (q = strstr(q, ".zip"));)
{
*q = '_';
q += 4;
}
return p;
}
void QFilename(char *f)
{
char *o,*p,*q = strdup(f);
p = q;
if(*q == '.' && *(q+1) == '/') q += 2;
o = q;
for(;*q;q++)
{
if(*q == '/') *q = '_';
if((qlflag & 1) == 0)
{
if(*q == '.') *q = '_';
}
}
strcpy(f,o);
free(p);
}
int QMatch(uch c1, uch c2)
{
int m =0;
if(c1 != c2)
{
if(c1 == '_' && (c2 == '.' || c2 == '/'))
{
m = 1;
}
}
else
{
m = 1;
}
return m;
}
int Qgetch(void)
{
char ch;
if(io_fbyte(getchid(0), -1, &ch) < 0)
{
return EOF;
}
else
{
return (int) ch;
}
}
int screensize(int *tt_rows, int *tt_cols)
{
QLRECT_t rect;
if(0 == sd_chenq(getchid(1), -1, &rect))
{
if(tt_cols)
*tt_cols = rect.q_width;
if(tt_rows)
*tt_rows = rect.q_height;
}
else
{
if(tt_cols)
*tt_cols = 80;
if(tt_rows)
*tt_rows = 24;
}
return 0;
}
#ifndef SFX
char *LastDir(char *ws)
{
char *p;
char *q = ws;
struct stat s;
for(p = ws; *p; p++)
{
if(*p == '_')
{
char c;
p++;
c = *p;
*p = 0;
if(stat(ws, &s) == 0 && S_ISDIR(s.st_mode))
{
q = p;
}
*p = c;
}
}
return q;
}
/**********************/
/* Function do_wild() */ /* for porting: dir separator; match(ignore_case) */
/**********************/
char *do_wild(__G__ wildspec)
__GDEF
ZCONST char *wildspec; /* only used first time on a given dir */
{
static DIR *wild_dir = (DIR *)NULL;
static ZCONST char *wildname;
static char *dirname, matchname[FILNAMSIZ];
static int notfirstcall=FALSE, have_dirname, dirnamelen;
struct dirent *file;
char basedir[40];
/* Even when we're just returning wildspec, we *always* do so in
* matchname[]--calling routine is allowed to append four characters
* to the returned string, and wildspec may be a pointer to argv[].
*/
if (!notfirstcall) { /* first call: must initialize everything */
char *ws = NULL, *us = NULL;
notfirstcall = TRUE;
/* break the wildspec into a directory part and a wildcard filename */
ws = (char *) iswild(wildspec);
if(ws == NULL)
{
strncpy(matchname, wildspec, FILNAMSIZ);
matchname[FILNAMSIZ-1] = '\0';
return matchname;
}
us = LastDir(wildspec);
if(us == wildspec)
{
dirname = basedir;
getcwd(basedir, sizeof(basedir)-1);
dirnamelen = strlen(basedir);
have_dirname = FALSE;
wildname = wildspec;
} else {
wildname = us; /* point at character after '/' */
dirnamelen = wildname - wildspec;
if ((dirname = (char *)malloc(dirnamelen+1)) == (char *)NULL) {
Info(slide, 0x201, ((char *)slide,
"warning: cannot allocate wildcard buffers\n"));
strncpy(matchname, wildspec, FILNAMSIZ);
matchname[FILNAMSIZ-1] = '\0';
return matchname; /* but maybe filespec was not a wildcard */
}
strncpy(dirname, wildspec, dirnamelen);
dirname[dirnamelen] = '\0'; /* terminate for strcpy below */
have_dirname = TRUE;
}
if ((wild_dir = opendir(dirname)) != (DIR *)NULL) {
while ((file = readdir(wild_dir)) != (struct dirent *)NULL) {
if (match(file->d_name, wildname, 0 WISEP)) { /* 0=case sens.*/
if (have_dirname) {
strcpy(matchname, dirname);
strcpy(matchname+dirnamelen, file->d_name);
} else
strcpy(matchname, file->d_name);
return matchname;
}
}
/* if we get to here directory is exhausted, so close it */
closedir(wild_dir);
wild_dir = (DIR *)NULL;
}
/* return the raw wildspec in case that works (e.g., directory not
* searchable, but filespec was not wild and file is readable) */
strncpy(matchname, wildspec, FILNAMSIZ);
matchname[FILNAMSIZ-1] = '\0';
return matchname;
}
/* last time through, might have failed opendir but returned raw wildspec */
if (wild_dir == (DIR *)NULL) {
notfirstcall = FALSE; /* nothing left to try--reset for new wildspec */
if (have_dirname)
free(dirname);
return (char *)NULL;
}
/* If we've gotten this far, we've read and matched at least one entry
* successfully (in a previous call), so dirname has been copied into
* matchname already.
*/
while ((file = readdir(wild_dir)) != (struct dirent *)NULL) {
if (match(file->d_name, wildname, 0 WISEP)) { /* 0 == case sens. */
if (have_dirname) {
/* strcpy(matchname, dirname); */
strcpy(matchname+dirnamelen, file->d_name);
} else
strcpy(matchname, file->d_name);
return matchname;
}
}
closedir(wild_dir); /* have read at least one entry; nothing left */
wild_dir = (DIR *)NULL;
notfirstcall = FALSE; /* reset for new wildspec */
if (have_dirname)
free(dirname);
return (char *)NULL;
} /* end function do_wild() */
#endif /* !SFX */
/**********************/
/* Function mapattr() */
/**********************/
int mapattr(__G)
__GDEF
{
ulg tmp = G.crec.external_file_attributes;
switch (G.pInfo->hostnum) {
case AMIGA_:
tmp = (unsigned)(tmp>>17 & 7); /* Amiga RWE bits */
G.pInfo->file_attr = (unsigned)(tmp<<6 | tmp<<3 | tmp);
break;
case THEOS_:
tmp &= 0xF1FFFFFFL;
if ((tmp & 0xF0000000L) != 0x40000000L)
tmp &= 0x01FFFFFFL; /* not a dir, mask all ftype bits */
else
tmp &= 0x41FFFFFFL; /* leave directory bit as set */
/* fall through! */
case QDOS_:
case UNIX_:
case VMS_:
case ACORN_:
case ATARI_:
case ATHEOS_:
case BEOS_:
case TANDEM_:
G.pInfo->file_attr = (unsigned)(tmp >> 16);
if (G.pInfo->file_attr != 0 || !G.extra_field) {
return 0;
} else {
/* Some (non-Info-ZIP) implementations of Zip for Unix and
VMS (and probably others ??) leave 0 in the upper 16-bit
part of the external_file_attributes field. Instead, they
store file permission attributes in some extra field.
As a work-around, we search for the presence of one of
these extra fields and fall back to the MSDOS compatible
part of external_file_attributes if one of the known
e.f. types has been detected.
Later, we might implement extraction of the permission
bits from the VMS extra field. But for now, the work-around
should be sufficient to provide "readable" extracted files.
(For ASI Unix e.f., an experimental remap of the e.f.
mode value IS already provided!)
*/
ush ebID;
unsigned ebLen;
uch *ef = G.extra_field;
unsigned ef_len = G.crec.extra_field_length;
int r = FALSE;
while (!r && ef_len >= EB_HEADSIZE) {
ebID = makeword(ef);
ebLen = (unsigned)makeword(ef+EB_LEN);
if (ebLen > (ef_len - EB_HEADSIZE))
/* discoverd some e.f. inconsistency! */
break;
switch (ebID) {
case EF_ASIUNIX:
if (ebLen >= (EB_ASI_MODE+2)) {
G.pInfo->file_attr =
(unsigned)makeword(ef+(EB_HEADSIZE+EB_ASI_MODE));
/* force stop of loop: */
ef_len = (ebLen + EB_HEADSIZE);
break;
}
/* else: fall through! */
case EF_PKVMS:
/* "found nondecypherable e.f. with perm. attr" */
r = TRUE;
default:
break;
}
ef_len -= (ebLen + EB_HEADSIZE);
ef += (ebLen + EB_HEADSIZE);
}
if (!r)
return 0;
}
/* fall through! */
/* all remaining cases: expand MSDOS read-only bit into write perms */
case FS_FAT_:
/* PKWARE's PKZip for Unix marks entries as FS_FAT_, but stores the
* Unix attributes in the upper 16 bits of the external attributes
* field, just like Info-ZIP's Zip for Unix. We try to use that
* value, after a check for consistency with the MSDOS attribute
* bits (see below).
*/
G.pInfo->file_attr = (unsigned)(tmp >> 16);
/* fall through! */
case FS_HPFS_:
case FS_NTFS_:
case MAC_:
case TOPS20_:
default:
/* Ensure that DOS subdir bit is set when the entry's name ends
* in a '/'. Some third-party Zip programs fail to set the subdir
* bit for directory entries.
*/
if ((tmp & 0x10) == 0) {
extent fnlen = strlen(G.filename);
if (fnlen > 0 && G.filename[fnlen-1] == '/')
tmp |= 0x10;
}
/* read-only bit --> write perms; subdir bit --> dir exec bit */
tmp = !(tmp & 1) << 1 | (tmp & 0x10) >> 4;
if ((G.pInfo->file_attr & 0700) == (unsigned)(0400 | tmp<<6))
/* keep previous G.pInfo->file_attr setting, when its "owner"
* part appears to be consistent with DOS attribute flags!
*/
return 0;
G.pInfo->file_attr = (unsigned)(0444 | tmp<<6 | tmp<<3 | tmp);
break;
} /* end switch (host-OS-created-by) */
/* for originating systems with no concept of "group," "other," "system": */
umask( (int)(tmp=umask(0)) ); /* apply mask to expanded r/w(/x) perms */
G.pInfo->file_attr &= ~tmp;
return 0;
} /* end function mapattr() */
/************************/
/* Function mapname() */
/************************/
int mapname(__G__ renamed)
__GDEF
int renamed;
/*
* returns:
* MPN_OK - no problem detected
* MPN_INF_TRUNC - caution (truncated filename)
* MPN_INF_SKIP - info "skip entry" (dir doesn't exist)
* MPN_ERR_SKIP - error -> skip entry
* MPN_ERR_TOOLONG - error -> path is too long
* MPN_NOMEM - error (memory allocation failed) -> skip entry
* [also MPN_VOL_LABEL, MPN_CREATED_DIR]
*/
{
char pathcomp[FILNAMSIZ]; /* path-component buffer */
char *pp, *cp=(char *)NULL; /* character pointers */
char *lastsemi=(char *)NULL; /* pointer to last semi-colon in pathcomp */
int killed_ddot = FALSE; /* is set when skipping "../" pathcomp */
int error = MPN_OK;
register unsigned workch; /* hold the character being tested */
/*---------------------------------------------------------------------------
Initialize various pointers and counters and stuff.
---------------------------------------------------------------------------*/
if (G.pInfo->vollabel)
return MPN_VOL_LABEL; /* can't set disk volume labels in SMS/QDOS */
/* 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 */
*pathcomp = '\0'; /* initialize translation buffer */
pp = pathcomp; /* point to translation buffer */
if (uO.jflag) /* junking directories */
cp = (char *)strrchr(G.filename, '/');
if (cp == (char *)NULL) /* no '/' or not junking dirs */
cp = G.filename; /* point to internal zipfile-member pathname */
else
++cp; /* point to start of last component of path */
/*---------------------------------------------------------------------------
Begin main loop through characters in filename.
---------------------------------------------------------------------------*/
while ((workch = (uch)*cp++) != 0) {
switch (workch) {
case '/': /* 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 '.':
if (pp == pathcomp) { /* nothing appended yet... */
if (*cp == '/') { /* don't bother appending "./" to */
++cp; /* the path: skip behind the '/' */
break;
} else if (!uO.ddotflag && *cp == '.' && cp[1] == '/') {
/* "../" dir traversal detected */
cp += 2; /* skip over behind the '/' */
killed_ddot = TRUE; /* set "show message" flag */
break;
}
}
*pp++ = (((qlflag & 1) == 0) ? '_' : '.');
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 */
/* Show warning when stripping insecure "parent dir" path components */
if (killed_ddot && QCOND2) {
Info(slide, 0, ((char *)slide,
"warning: skipped \"../\" path component(s) in %s\n",
FnFilter1(G.filename)));
if (!(error & ~MPN_MASK))
error = (error & MPN_MASK) | PK_WARN;
}
/*---------------------------------------------------------------------------
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] == '/') {
G.filename[strlen(G.filename) - 1] = '_';
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
*/
{
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;
#ifdef SHORT_NAMES
char *old_end = end;
#endif
Trace((stderr, "appending dir segment [%s]\n", FnFilter1(pathcomp)));
while ((*end = *pathcomp++) != '\0')
++end;
#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-2) /* 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), FnFilter1(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) {
#ifdef SHORT_NAMES
char *old_end = end;
#endif
short dlen;
Trace((stderr, "appending filename [%s]\n", FnFilter1(pathcomp)));
while ((*end = *pathcomp++) != '\0') {
++end;
#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 (isdirdev(buildpath))
{
dlen = 5;
}
else
{
dlen = 0;
}
if ((end-buildpath-dlen) >= 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 "));
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 ((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;
}
}
if (tmproot[rootlen-1] == '/' || tmproot[rootlen-1] == '_') {
tmproot[--rootlen] = '\0';
}
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() */
static void qfix(__G__ ef_ptr, ef_len)
__GDEF
uch *ef_ptr;
unsigned ef_len;
{
qdosextra qextra;
while (ef_len >= EB_HEADSIZE)
{
qdosextra *extra = &qextra;
jbextra *jbp = (jbextra *)&qextra;
unsigned eb_len = makeword(EB_LEN + ef_ptr);
if (eb_len > (ef_len - EB_HEADSIZE)) {
/* discovered some extra field inconsistency! */
Trace((stderr,
"qfix: block length %u > rest ef_size %u\n", eb_len,
ef_len - EB_HEADSIZE));
break;
}
/* Must ensure that we don't use ODD addresses here */
memcpy(&qextra, ef_ptr, sizeof(qdosextra));
switch (extra->shortid) {
case SHORTID:
if (!strncmp(extra->longid, LONGID, strlen(LONGID)))
{
if (eb_len != EXTRALEN)
fputs("warning: invalid length in Qdos field", stderr);
if (extra->header.d_type)
{
fs_heads(fgetchid(G.outfile), (timeout_t)-1,
&extra->header, 14);
G.pInfo->file_attr |= S_IXUSR;
}
}
if (!strncmp(jbp->longid, JBLONGID, strlen(JBLONGID)))
{
if (eb_len != JBEXTRALEN)
fputs("warning: invalid length in QZ field", stderr);
if (jbp->header.d_type)
{
fs_heads(fgetchid(G.outfile), (timeout_t)-1,
&jbp->header, 14);
G.pInfo->file_attr |= S_IXUSR;
}
}
break;
default:
Trace((stderr,"qfix: unknown extra field block, ID=%d\n",
extra->shortid));
break;
}
/* Skip this extra field block */
ef_ptr += (eb_len + EB_HEADSIZE);
ef_len -= (eb_len + EB_HEADSIZE);
}
}
#ifdef QDOS
# include <utime.h>
long timezone = 0;
#endif
/****************************/
/* Function close_outfile() */
/****************************/
void close_outfile(__G)
__GDEF
{
union {
iztimes t3; /* mtime, atime, ctime */
struct utimbuf t2; /* modtime, actime */
} zt;
#ifdef USE_EF_UT_TIME
unsigned eb_izux_flg;
#endif
if (G.extra_field) {
qfix(__G__ G.extra_field, G.lrec.extra_field_length);
}
fclose(G.outfile);
/*---------------------------------------------------------------------------
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
/*---------------------------------------------------------------------------
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.
---------------------------------------------------------------------------*/
/* skip restoring time stamps on user's request */
if (uO.D_flag <= 1) {
#ifdef USE_EF_UT_TIME
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
NULL) : 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));
}
#else
zt.t3.atime = zt.t3.mtime
= dos_to_unix_time(G.lrec.last_mod_dos_datetime);
#endif
/* set the file's access and modification times */
if (utime(G.filename, &(zt.t2))) {
Info(slide, 0x201, ((char *)slide,
"warning: cannot set the time for %s\n",
FnFilter1(G.filename)));
}
}
} /* end function close_outfile() */
#ifdef TIMESTAMP
/***************************/
/* Function stamp_file() */
/***************************/
int stamp_file(fname, modtime)
ZCONST char *fname;
time_t modtime;
{
struct utimbuf tp;
tp.modtime = tp.actime = modtime;
return (utime(fname, &tp));
} /* end function stamp_file() */
#endif /* TIMESTAMP */
#ifndef SFX
/************************/
/* Function version() */
/************************/
void version(__G)
__GDEF
{
sprintf((char *)slide, LoadFarString(CompiledWith),
"c68", " v4.2x", "SMS/QDOS",
" on ", __DATE__, "","");
(*G.message)((zvoid *)&G, slide, (ulg)strlen((char *)slide), 0);
} /* end function version() */
#endif /* !SFX */
#endif /* !FUNZIP */
#if CRYPT
char *getp(__G__ m, p, n)
__GDEF
const char *m; /* prompt for password */
char *p; /* return value: line input */
int n; /* bytes available in p[] */
{
int c; /* one-byte buffer for read() to use */
int i; /* number of characters input */
char *w; /* warning on retry */
/* get password */
w = "";
sd_cure(getchid(0), -1); /* enable cursor */
do {
fputs(w, stderr); /* warning if back again */
fputs(m, stderr); /* display prompt and flush */
fflush(stderr);
i = 0;
do {
c = getch();
if (c == 0xc2) {
if (i > 0) {
i--; /* the `del' keys works */
fputs("\b \b", stderr);
}
}
else if (i < n) {
p[i++] = c; /* truncate past n */
if(c != '\n') putc('*', stderr);
}
} while (c != '\n');
putc('\n', stderr); fflush(stderr);
w = "(line too long--try again)\n";
} while (p[i-1] != '\n');
p[i-1] = 0; /* terminate at newline */
sd_curs(getchid(0), -1); /* suppress cursor */
return p; /* return pointer to password */
} /* end function getp() */
#endif /* CRYPT */