nephele/haiku
nephele
/
haiku
0
0
Fork 0
Code Issues Releases Activity
haiku/src/bin/unzip/beos.c

1331 lines
46 KiB
C
Raw Permalink Blame History

/*
Copyright (c) 1990-2002 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, all these files are missing, the Info-ZIP license
also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
*/
/*---------------------------------------------------------------------------
beos.c
BeOS-specific routines for use with Info-ZIP's UnZip 5.30 and later.
(based on unix/unix.c)
Contains: do_wild() <-- generic enough to put in fileio.c?
mapattr()
mapname()
checkdir()
close_outfile()
set_direc_attribs()
stamp_file()
version()
scanBeOSexfield()
set_file_attrs()
setBeOSexfield()
printBeOSexfield()
assign_MIME()
---------------------------------------------------------------------------*/
#define UNZIP_INTERNAL
#include "unzip.h"
#include "beos.h"
#include <errno.h> /* Just make sure we've got a few things... */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <dirent.h>
/* For the new post-DR8 file attributes */
#include <fs_attr.h>
#include <ByteOrder.h>
#include <Mime.h>
static uch *scanBeOSexfield OF((const uch *ef_ptr, unsigned ef_len));
static int set_file_attrs( const char *, const unsigned char *, const off_t );
static void setBeOSexfield OF((const char *path, uch *extra_field));
#ifdef BEOS_USE_PRINTEXFIELD
static void printBeOSexfield OF((int isdir, uch *extra_field));
#endif
#ifdef BEOS_ASSIGN_FILETYPE
static void assign_MIME( const char * );
#endif
#ifdef ACORN_FTYPE_NFS
/* Acorn bits for NFS filetyping */
typedef struct {
uch ID[2];
uch size[2];
uch ID_2[4];
uch loadaddr[4];
uch execaddr[4];
uch attr[4];
} RO_extra_block;
#endif /* ACORN_FTYPE_NFS */
static int created_dir; /* used in mapname(), checkdir() */
static int renamed_fullpath; /* ditto */
#ifndef SFX
/**********************/
/* 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;
/* 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 */
notfirstcall = TRUE;
if (!iswild(wildspec)) {
strcpy(matchname, wildspec);
have_dirname = FALSE;
wild_dir = NULL;
return matchname;
}
/* break the wildspec into a directory part and a wildcard filename */
if ((wildname = strrchr(wildspec, '/')) == (ZCONST char *)NULL) {
dirname = ".";
dirnamelen = 1;
have_dirname = FALSE;
wildname = wildspec;
} else {
++wildname; /* 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"));
strcpy(matchname, wildspec);
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 (file->d_name[0] == '.' && wildname[0] != '.')
continue; /* Unix: '*' and '?' do not match leading dot */
if (match(file->d_name, wildname, 0)) { /* 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) */
strcpy(matchname, wildspec);
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 (file->d_name[0] == '.' && wildname[0] != '.')
continue; /* Unix: '*' and '?' do not match leading dot */
if (match(file->d_name, wildname, 0)) { /* 0 == don't ignore case */
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 BEOS_:
case UNIX_:
case VMS_:
case ACORN_:
case ATARI_:
case QDOS_:
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 */
#ifdef ACORN_FTYPE_NFS
char *lastcomma=(char *)NULL; /* pointer to last comma in pathcomp */
RO_extra_block *ef_spark; /* pointer Acorn FTYPE ef block */
#endif
int quote = FALSE; /* flags */
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 BeOS */
/* 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) {
if (quote) { /* if character quoted, */
*pp++ = (char)workch; /* include it literally */
quote = FALSE;
} else
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 directory 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++ = '.';
break;
case ';': /* VMS version (or DEC-20 attrib?) */
lastsemi = pp;
*pp++ = ';'; /* keep for now; remove VMS ";##" */
break; /* later, if requested */
#ifdef ACORN_FTYPE_NFS
case ',': /* NFS filetype extension */
lastcomma = pp;
*pp++ = ','; /* keep for now; may need to remove */
break; /* later, if requested */
#endif
case '\026': /* control-V quote for special chars */
quote = TRUE; /* set flag for next character */
break;
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] == '/') {
checkdir(__G__ G.filename, GETPATH);
if (created_dir) {
if (QCOND2) {
Info(slide, 0, ((char *)slide, " creating: %s\n",
FnFilter1(G.filename)));
}
if (!uO.J_flag) { /* Handle the BeOS extra field if present. */
void *ptr = scanBeOSexfield( G.extra_field,
G.lrec.extra_field_length );
if (ptr) {
setBeOSexfield( G.filename, ptr );
}
}
#ifndef NO_CHMOD
/* set approx. dir perms (make sure can still read/write in dir) */
if (chmod(G.filename, (0xffff & G.pInfo->file_attr) | 0700))
perror("chmod (directory attributes) error");
#endif
/* set dir time (note trailing '/') */
return (error & ~MPN_MASK) | MPN_CREATED_DIR;
}
/* TODO: should we re-write the BeOS extra field data in case it's */
/* changed? The answer is yes. [Sept 1999 - cjh] */
if (!uO.J_flag) { /* Handle the BeOS extra field if present. */
void *ptr = scanBeOSexfield( G.extra_field,
G.lrec.extra_field_length );
if (ptr) {
setBeOSexfield( G.filename, ptr );
}
}
/* 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';
}
#ifdef ACORN_FTYPE_NFS
/* translate Acorn filetype information if asked to do so */
if (uO.acorn_nfs_ext &&
(ef_spark = (RO_extra_block *)
getRISCOSexfield(G.extra_field, G.lrec.extra_field_length))
!= (RO_extra_block *)NULL)
{
/* 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() */
/***********************/
/* 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-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), 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
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 ((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",
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] == '/') {
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
{
iztimes zt;
ush z_uidgid[2];
unsigned eb_izux_flg;
/*---------------------------------------------------------------------------
If symbolic links are supported, allocate a storage area, put the uncom-
pressed "data" in it, and create the link. Since we know it's a symbolic
link to start with, we shouldn't have to worry about overflowing unsigned
ints with unsigned longs.
---------------------------------------------------------------------------*/
#ifdef SYMLINKS
if (G.symlnk) {
unsigned ucsize = (unsigned)G.lrec.ucsize;
char *linktarget = (char *)malloc((unsigned)G.lrec.ucsize+1);
fclose(G.outfile); /* close "data" file... */
G.outfile = fopen(G.filename, FOPR); /* ...and reopen for reading */
if (!linktarget
|| fread(linktarget, 1, ucsize, G.outfile) != (size_t)ucsize) {
Info(slide, 0x201, ((char *)slide,
"warning: symbolic link (%s) failed\n", FnFilter1(G.filename)));
if (linktarget)
free(linktarget);
fclose(G.outfile);
return;
}
fclose(G.outfile); /* close "data" file for good... */
unlink(G.filename); /* ...and delete it */
linktarget[ucsize] = '\0';
if (QCOND2)
Info(slide, 0, ((char *)slide, "-> %s ", FnFilter1(linktarget)));
if (symlink(linktarget, G.filename)) /* create the real link */
perror("symlink error");
if (!uO.J_flag) {
/* Symlinks can have attributes, too. */
void *ptr = scanBeOSexfield( G.extra_field,
G.lrec.extra_field_length );
if (ptr) {
setBeOSexfield( G.filename, ptr );
}
}
free(linktarget);
return; /* can't set time on symlinks */
}
#endif /* SYMLINKS */
fclose(G.outfile);
/* handle the BeOS extra field if present */
if (!uO.J_flag) {
void *ptr = scanBeOSexfield( G.extra_field,
G.lrec.extra_field_length );
if (ptr) {
setBeOSexfield( G.filename, ptr );
#ifdef BEOS_ASSIGN_FILETYPE
} else {
/* Otherwise, ask the system to try assigning a MIME type. */
assign_MIME( G.filename );
#endif
}
}
/*---------------------------------------------------------------------------
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. 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 : NULL),
#else
&zt,
#endif
z_uidgid) : 0);
if (eb_izux_flg & EB_UT_FL_MTIME) {
TTrace((stderr, "\nclose_outfile: Unix e.f. modif. time = %ld\n",
zt.mtime));
} else {
zt.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.atime));
} else {
zt.atime = zt.mtime;
TTrace((stderr, "\nclose_outfile: modification/access times = %ld\n",
zt.mtime));
}
/* if -X option was specified and we have UID/GID info, restore it */
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 %d and/or GID %d for %s\n",
z_uidgid[0], z_uidgid[1], FnFilter1(G.filename)));
else
Info(slide, 0x201, ((char *)slide,
" (warning) cannot set UID %d and/or GID %d",
z_uidgid[0], z_uidgid[1]));
}
}
/* set the file's access and modification times */
if (utime(G.filename, (struct utimbuf *)&zt)) {
if (uO.qflag)
Info(slide, 0x201, ((char *)slide,
"warning: cannot set time for %s\n", FnFilter1(G.filename)));
else
Info(slide, 0x201, ((char *)slide,
" (warning) cannot set time"));
}
} /* end function close_outfile() */
#ifdef SET_DIR_ATTRIB
/* messages of code for setting directory attributes */
static char Far DirlistUidGidFailed[] =
"warning: cannot set UID %d and/or GID %d for %s\n";
static char Far DirlistUtimeFailed[] =
"warning: cannot set modification, access times for %s\n";
# ifndef NO_CHMOD
static char Far DirlistChmodFailed[] =
"warning: cannot set permissions for %s\n";
# endif
int set_direc_attribs(__G__ d)
__GDEF
dirtime *d;
{
int errval = PK_OK;
if (d->have_uidgid &&
chown(d->fn, (uid_t)d->uidgid[0], (gid_t)d->uidgid[1]))
{
Info(slide, 0x201, ((char *)slide,
LoadFarString(DirlistUidGidFailed),
d->uidgid[0], d->uidgid[1], d->fn));
if (!errval)
errval = PK_WARN;
}
if (utime(d->fn, (const struct utimbuf *)&d->u.t2)) {
Info(slide, 0x201, ((char *)slide,
LoadFarString(DirlistUtimeFailed), FnFilter1(d->fn)));
if (!errval)
errval = PK_WARN;
}
#ifndef NO_CHMOD
if (chmod(d->fn, 0xffff & d->perms)) {
Info(slide, 0x201, ((char *)slide,
LoadFarString(DirlistChmodFailed), FnFilter1(d->fn)));
/* perror("chmod (file attributes) error"); */
if (!errval)
errval = PK_WARN;
}
#endif /* !NO_CHMOD */
return errval;
} /* end function set_directory_attributes() */
#endif /* SET_DIR_ATTRIB */
#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),
#if defined(__MWERKS__)
"Metrowerks CodeWarrior", "",
#elif defined(__GNUC__)
"GNU C ", __VERSION__,
#endif
"BeOS ",
#ifdef __POWERPC__
"(PowerPC)",
#else
# ifdef __i386__
"(x86)",
# else
"(unknown)", /* someday we may have other architectures... */
# endif
#endif
#ifdef __DATE__
" on ", __DATE__
#else
"", ""
#endif
);
(*G.message)((zvoid *)&G, slide, (ulg)strlen((char *)slide), 0);
} /* end function version() */
#endif /* !SFX */
/******************************/
/* Extra field functions */
/******************************/
/*
** Scan the extra fields in extra_field, and look for a BeOS EF; return a
** pointer to that EF, or NULL if it's not there.
*/
static uch *scanBeOSexfield( const uch *ef_ptr, unsigned ef_len )
{
while( ef_ptr != NULL && ef_len >= EB_HEADSIZE ) {
unsigned eb_id = makeword(EB_ID + ef_ptr);
unsigned eb_len = makeword(EB_LEN + ef_ptr);
if (eb_len > (ef_len - EB_HEADSIZE)) {
Trace((stderr,
"scanBeOSexfield: block length %u > rest ef_size %u\n", eb_len,
ef_len - EB_HEADSIZE));
break;
}
if( eb_id == EF_BEOS && eb_len >= EB_BEOS_HLEN ) {
return (uch *)ef_ptr;
}
ef_ptr += (eb_len + EB_HEADSIZE);
ef_len -= (eb_len + EB_HEADSIZE);
}
return NULL;
}
/* Used by setBeOSexfield():
Set a file/directory's attributes to the attributes passed in.
If set_file_attrs() fails, an error will be returned:
EOK - no errors occurred
(other values will be whatever the failed function returned; no docs
yet, or I'd list a few)
*/
static int set_file_attrs( const char *name,
const unsigned char *attr_buff,
const off_t total_attr_size )
{
int retval = EOK;
unsigned char *ptr;
const unsigned char *guard;
int fd;
ptr = (unsigned char *)attr_buff;
guard = ptr + total_attr_size;
#ifdef HAIKU_USE_KERN_OPEN
fd = _kern_open( -1, name, O_RDONLY | O_NOTRAVERSE, 0 );
if( fd < 0 )
return fd;
#else
fd = open( name, O_RDONLY | O_NOTRAVERSE );
if( fd < 0 ) {
return errno; /* should it be -fd ? */
}
#endif
while( ptr < guard ) {
ssize_t wrote_bytes;
const char *attr_name;
unsigned char *attr_data;
uint32 attr_type;
int64 attr_size;
attr_name = (char *)&(ptr[0]);
ptr += strlen( attr_name ) + 1;
/* The attr_info data is stored in big-endian format because the */
/* PowerPC port was here first. */
memcpy( &attr_type, ptr, 4 ); ptr += 4;
memcpy( &attr_size, ptr, 8 ); ptr += 8;
attr_type = (uint32)B_BENDIAN_TO_HOST_INT32( attr_type );
attr_size = (off_t)B_BENDIAN_TO_HOST_INT64( attr_size );
if( attr_size < 0LL ) {
Info(slide, 0x201, ((char *)slide,
"warning: skipping attribute with invalid length (%" B_PRIdOFF
")\n", attr_size));
break;
}
attr_data = ptr;
ptr += attr_size;
if( ptr > guard ) {
/* We've got a truncated attribute. */
Info(slide, 0x201, ((char *)slide,
"warning: truncated attribute\n"));
break;
}
/* Wave the magic wand... this will swap Be-known types properly. */
(void)swap_data( attr_type, attr_data, attr_size,
B_SWAP_BENDIAN_TO_HOST );
wrote_bytes = fs_write_attr( fd, attr_name, attr_type, 0,
attr_data, attr_size );
if( wrote_bytes != attr_size ) {
Info(slide, 0x201, ((char *)slide,
"warning: wrote %ld attribute bytes of %ld\n",
(unsigned long)wrote_bytes,(unsigned long)attr_size));
}
}
close( fd );
return retval;
}
static void setBeOSexfield(const char *path, uch *extra_field)
{
uch *ptr = extra_field;
ush id = 0;
ush size = 0;
ulg full_size = 0;
uch flags = 0;
uch *attrbuff = NULL;
int retval;
if (extra_field == NULL)
return;
/* Collect the data from the extra field buffer. */
id = makeword( ptr ); ptr += 2; /* we don't use this... */
size = makeword( ptr ); ptr += 2;
full_size = makelong( ptr ); ptr += 4;
flags = *ptr; ptr++;
/* Do a little sanity checking. */
if (flags & EB_BE_FL_BADBITS) {
/* corrupted or unsupported */
Info(slide, 0x201, ((char *)slide,
"Unsupported flags set for this BeOS extra field, skipping.\n"));
return;
}
if (size <= EB_BEOS_HLEN) {
/* corrupted, unsupported, or truncated */
Info(slide, 0x201, ((char *)slide,
"BeOS extra field is %d bytes, should be at least %d.\n", size,
EB_BEOS_HLEN));
return;
}
if (full_size < (uint32)(size - EB_BEOS_HLEN)) {
/* possible old archive? will this screw up on valid archives? */
Info(slide, 0x201, ((char *)slide,
"Skipping attributes: BeOS extra field is %d bytes, "
"data size is %ld.\n", size - EB_BEOS_HLEN, full_size));
return;
}
/* Find the BeOS file attribute data. */
if (flags & EB_BE_FL_UNCMPR) {
/* Uncompressed data */
attrbuff = ptr;
} else {
/* Compressed data */
attrbuff = (uch *)malloc(full_size);
if (attrbuff == NULL) {
/* No memory to uncompress attributes */
Info(slide, 0x201, ((char *)slide,
"Can't allocate memory to uncompress file attributes.\n"));
return;
}
retval = memextract(__G__ attrbuff, full_size, ptr, size - EB_BEOS_HLEN);
if (retval != PK_OK) {
/* error uncompressing attributes */
Info(slide, 0x201, ((char *)slide,
"Error uncompressing file attributes.\n"));
/* Some errors here might not be so bad; we should expect */
/* some truncated data, for example. If the data was */
/* corrupt, we should _not_ attempt to restore the attrs */
/* for this file... there's no way to detect what attrs */
/* are good and which are bad. */
free(attrbuff);
return;
}
}
/* Now attempt to set the file attributes on the extracted file. */
retval = set_file_attrs(path, attrbuff, (off_t)full_size);
if (retval != EOK) {
Info(slide, 0x201, ((char *)slide,
"Error writing file attributes.\n"));
}
/* Clean up, if necessary */
if (attrbuff != ptr)
free(attrbuff);
}
#ifdef BEOS_USE_PRINTEXFIELD
static void printBeOSexfield( int isdir, uch *extra_field )
{
uch *ptr = extra_field;
ush id = 0;
ush size = 0;
ulg full_size = 0;
uch flags = 0;
/* Tell picky compilers to be quiet. */
isdir = isdir;
if( extra_field == NULL ) {
return;
}
/* Collect the data from the buffer. */
id = makeword( ptr ); ptr += 2;
size = makeword( ptr ); ptr += 2;
full_size = makelong( ptr ); ptr += 4;
flags = *ptr; ptr++;
if( id != EF_BEOS ) {
/* not a 'Be' field */
printf("\t*** Unknown field type (0x%04x, '%c%c')\n", id,
(char)(id >> 8), (char)id);
}
if( flags & EB_BE_FL_BADBITS ) {
/* corrupted or unsupported */
printf("\t*** Corrupted BeOS extra field:\n");
printf("\t*** unknown bits set in the flags\n");
printf("\t*** (Possibly created by an old version of zip for BeOS.\n");
}
if( size <= EB_BEOS_HLEN ) {
/* corrupted, unsupported, or truncated */
printf("\t*** Corrupted BeOS extra field:\n");
printf("\t*** size is %d, should be larger than %d\n", size,
EB_BEOS_HLEN );
}
if( flags & EB_BE_FL_UNCMPR ) {
/* Uncompressed data */
printf("\tBeOS extra field data (uncompressed):\n");
printf("\t\t%ld data bytes\n", full_size);
} else {
/* Compressed data */
printf("\tBeOS extra field data (compressed):\n");
printf("\t\t%d compressed bytes\n", size - EB_BEOS_HLEN);
printf("\t\t%ld uncompressed bytes\n", full_size);
}
}
#endif
#ifdef BEOS_ASSIGN_FILETYPE
/* Note: This will no longer be necessary in BeOS PR4; update_mime_info() */
/* will be updated to build its own absolute pathname if it's not given one. */
static void assign_MIME( const char *file )
{
char *fullname;
char buff[PATH_MAX], cwd_buff[PATH_MAX];
int retval;
if( file[0] == '/' ) {
fullname = (char *)file;
} else {
sprintf( buff, "%s/%s", getcwd( cwd_buff, PATH_MAX ), file );
fullname = buff;
}
retval = update_mime_info( fullname, FALSE, TRUE, TRUE );
}
#endif
View Git Blame Copy Permalink