0,0 → 1,1544 |
/* |
Copyright (c) 1990-2009 Info-ZIP. All rights reserved. |
|
See the accompanying file LICENSE, version 2009-Jan-02 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() |
defer_dir_attribs() |
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 <kernel/fs_attr.h> |
#include <support/byteorder.h> |
#include <storage/Mime.h> |
|
static unsigned filtattr OF((__GPRO__ unsigned perms)); |
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 SET_DIR_ATTRIB |
typedef struct uxdirattr { /* struct for holding unix style directory */ |
struct uxdirattr *next; /* info until can be sorted and set at end */ |
char *fn; /* filename of directory */ |
union { |
iztimes t3; /* mtime, atime, ctime */ |
ztimbuf t2; /* modtime, actime */ |
} u; |
unsigned perms; /* same as min_info.file_attr */ |
int have_uidgid; /* flag */ |
ulg uidgid[2]; |
char fnbuf[1]; /* buffer stub for directory name */ |
} uxdirattr; |
#define UxAtt(d) ((uxdirattr *)d) /* typecast shortcut */ |
#endif /* SET_DIR_ATTRIB */ |
|
#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 */ |
|
|
/*****************************/ |
/* Strings used multiple */ |
/* times in beos.c */ |
/*****************************/ |
|
/* messages of code for setting file/directory attributes */ |
static ZCONST char CannotSetItemUidGid[] = |
"warning: cannot set UID %lu and/or GID %lu for %s\n %s\n"; |
static ZCONST char CannotSetUidGid[] = |
" (warning) cannot set UID %lu and/or GID %lu\n %s"; |
static ZCONST char CannotSetItemTimestamps[] = |
"warning: cannot set modif./access times for %s\n %s\n"; |
static ZCONST char CannotSetTimestamps[] = |
" (warning) cannot set modif./access times\n %s"; |
|
|
#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 */ |
{ |
/* these statics are now declared in SYSTEM_SPECIFIC_GLOBALS in beocfg.h: |
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 (!G.notfirstcall) { /* first call: must initialize everything */ |
G.notfirstcall = TRUE; |
|
if (!iswild(wildspec)) { |
strncpy(G.matchname, wildspec, FILNAMSIZ); |
G.matchname[FILNAMSIZ-1] = '\0'; |
G.have_dirname = FALSE; |
G.wild_dir = NULL; |
return G.matchname; |
} |
|
/* break the wildspec into a directory part and a wildcard filename */ |
if ((G.wildname = (ZCONST char *)strrchr(wildspec, '/')) == NULL) { |
G.dirname = "."; |
G.dirnamelen = 1; |
G.have_dirname = FALSE; |
G.wildname = wildspec; |
} else { |
++G.wildname; /* point at character after '/' */ |
G.dirnamelen = G.wildname - wildspec; |
if ((G.dirname = (char *)malloc(G.dirnamelen+1)) == (char *)NULL) { |
Info(slide, 0x201, ((char *)slide, |
"warning: cannot allocate wildcard buffers\n")); |
strncpy(G.matchname, wildspec, FILNAMSIZ); |
G.matchname[FILNAMSIZ-1] = '\0'; |
return G.matchname; /* but maybe filespec was not a wildcard */ |
} |
strncpy(G.dirname, wildspec, G.dirnamelen); |
G.dirname[G.dirnamelen] = '\0'; /* terminate for strcpy below */ |
G.have_dirname = TRUE; |
} |
|
if ((G.wild_dir = (zvoid *)opendir(G.dirname)) != (zvoid *)NULL) { |
while ((file = readdir((DIR *)G.wild_dir)) != |
(struct dirent *)NULL) { |
Trace((stderr, "do_wild: readdir returns %s\n", |
FnFilter1(file->d_name))); |
if (file->d_name[0] == '.' && G.wildname[0] != '.') |
continue; /* Unix: '*' and '?' do not match leading dot */ |
if (match(file->d_name, G.wildname, 0 WISEP) &&/*0=case sens.*/ |
/* skip "." and ".." directory entries */ |
strcmp(file->d_name, ".") && strcmp(file->d_name, "..")) { |
Trace((stderr, "do_wild: match() succeeds\n")); |
if (G.have_dirname) { |
strcpy(G.matchname, G.dirname); |
strcpy(G.matchname+G.dirnamelen, file->d_name); |
} else |
strcpy(G.matchname, file->d_name); |
return G.matchname; |
} |
} |
/* if we get to here directory is exhausted, so close it */ |
closedir((DIR *)G.wild_dir); |
G.wild_dir = (zvoid *)NULL; |
} |
Trace((stderr, "do_wild: opendir(%s) returns NULL\n", |
FnFilter1(G.dirname))); |
|
/* return the raw wildspec in case that works (e.g., directory not |
* searchable, but filespec was not wild and file is readable) */ |
strncpy(G.matchname, wildspec, FILNAMSIZ); |
G.matchname[FILNAMSIZ-1] = '\0'; |
return G.matchname; |
} |
|
/* last time through, might have failed opendir but returned raw wildspec */ |
if ((DIR *)G.wild_dir == (DIR *)NULL) { |
G.notfirstcall = FALSE; /* nothing left--reset for new wildspec */ |
if (G.have_dirname) |
free(G.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((DIR *)G.wild_dir)) != (struct dirent *)NULL) { |
Trace((stderr, "do_wild: readdir returns %s\n", |
FnFilter1(file->d_name))); |
if (file->d_name[0] == '.' && G.wildname[0] != '.') |
continue; /* Unix: '*' and '?' do not match leading dot */ |
if (match(file->d_name, G.wildname, 0 WISEP)) { /* 0 == case sens. */ |
Trace((stderr, "do_wild: match() succeeds\n")); |
if (G.have_dirname) { |
/* strcpy(G.matchname, G.dirname); */ |
strcpy(G.matchname+G.dirnamelen, file->d_name); |
} else |
strcpy(G.matchname, file->d_name); |
return G.matchname; |
} |
} |
|
closedir((DIR *)G.wild_dir); /* at least one entry read; nothing left */ |
G.wild_dir = (zvoid *)NULL; |
G.notfirstcall = FALSE; /* reset for new wildspec */ |
if (G.have_dirname) |
free(G.dirname); |
return (char *)NULL; |
|
} /* end function do_wild() */ |
|
#endif /* !SFX */ |
|
|
|
|
#ifndef S_ISUID |
# define S_ISUID 0004000 /* set user id on execution */ |
#endif |
#ifndef S_ISGID |
# define S_ISGID 0002000 /* set group id on execution */ |
#endif |
#ifndef S_ISVTX |
# define S_ISVTX 0001000 /* save swapped text even after use */ |
#endif |
|
/************************/ |
/* Function filtattr() */ |
/************************/ |
/* This is used to clear or keep the SUID and SGID bits on file permissions. |
* It's possible that a file in an archive could have one of these bits set |
* and, unknown to the person unzipping, could allow others to execute the |
* file as the user or group. The new option -K bypasses this check. |
*/ |
|
static unsigned filtattr(__G__ perms) |
__GDEF |
unsigned perms; |
{ |
/* keep setuid/setgid/tacky perms? */ |
if (!uO.K_flag) |
perms &= ~(S_ISUID | S_ISGID | S_ISVTX); |
|
return (0xffff & perms); |
} /* end function filtattr() */ |
|
|
|
|
|
/**********************/ |
/* Function mapattr() */ |
/**********************/ |
|
int mapattr(__G) |
__GDEF |
{ |
int r; |
ulg tmp = G.crec.external_file_attributes; |
|
G.pInfo->file_attr = 0; |
/* initialized to 0 for check in "default" branch below... */ |
|
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 ATHEOS_: |
case QDOS_: |
case TANDEM_: |
r = FALSE; |
G.pInfo->file_attr = (unsigned)(tmp >> 16); |
if (G.pInfo->file_attr == 0 && G.extra_field) { |
/* 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; |
|
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) { |
#ifdef SYMLINKS |
/* Check if the file is a (POSIX-compatible) symbolic link. |
* We restrict symlink support to those "made-by" hosts that |
* are known to support symbolic links. |
*/ |
G.pInfo->symlink = S_ISLNK(G.pInfo->file_attr) && |
SYMLINK_HOST(G.pInfo->hostnum); |
#endif |
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! |
*/ |
#ifdef SYMLINKS |
/* Entries "made by FS_FAT_" could have been zipped on a |
* system that supports POSIX-style symbolic links. |
*/ |
G.pInfo->symlink = S_ISLNK(G.pInfo->file_attr) && |
(G.pInfo->hostnum == FS_FAT_); |
#endif |
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 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); |
|
G.created_dir = FALSE; /* not yet */ |
|
/* user gave full pathname: don't prepend rootpath */ |
G.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 (strcmp(pathcomp, ".") == 0) { |
/* don't bother appending "./" to the path */ |
*pathcomp = '\0'; |
} else if (!uO.ddotflag && strcmp(pathcomp, "..") == 0) { |
/* "../" dir traversal detected, skip over it */ |
*pathcomp = '\0'; |
killed_ddot = TRUE; /* set "show message" flag */ |
} |
/* when path component is not empty, append it now */ |
if (*pathcomp != '\0' && |
((error = checkdir(__G__ pathcomp, APPEND_DIR)) |
& MPN_MASK) > MPN_INF_TRUNC) |
return error; |
pp = pathcomp; /* reset conversion buffer for next piece */ |
lastsemi = (char *)NULL; /* leave direct. semi-colons alone */ |
break; |
|
case ';': /* VMS version (or DEC-20 attrib?) */ |
lastsemi = pp; |
*pp++ = ';'; /* keep for now; remove VMS ";##" */ |
break; /* later, if requested */ |
|
#ifdef ACORN_FTYPE_NFS |
case ',': /* NFS filetype extension */ |
lastcomma = pp; |
*pp++ = ','; /* keep for now; may need to remove */ |
break; /* later, if requested */ |
#endif |
|
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 (G.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, filtattr(__G__ 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'; |
} |
|
/* 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) |
*pathcomp = '_'; |
else if (strcmp(pathcomp, "..") == 0) |
strcpy(pathcomp, "__"); |
|
#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 ((*G.end = *pathcomp++) != '\0') |
++G.end; |
#ifdef SHORT_NAMES /* path components restricted to 14 chars, typically */ |
if ((G.end-old_end) > FILENAME_MAX) /* GRR: proper constant? */ |
*(G.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. */ |
|
/* next check: need to append '/', at least one-char name, '\0' */ |
if ((G.end-G.buildpath) > FILNAMSIZ-3) |
too_long = TRUE; /* check if extracting dir? */ |
if (SSTAT(G.buildpath, &G.statbuf)) { /* path doesn't exist */ |
if (!G.create_dirs) { /* told not to create (freshening) */ |
free(G.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(G.buildpath))); |
free(G.buildpath); |
/* no room for filenames: fatal */ |
return MPN_ERR_TOOLONG; |
} |
if (mkdir(G.buildpath, 0777) == -1) { /* create the directory */ |
Info(slide, 1, ((char *)slide, |
"checkdir error: cannot create %s\n\ |
%s\n\ |
unable to process %s.\n", |
FnFilter2(G.buildpath), |
strerror(errno), |
FnFilter1(G.filename))); |
free(G.buildpath); |
/* path didn't exist, tried to create, failed */ |
return MPN_ERR_SKIP; |
} |
G.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(G.buildpath), FnFilter1(G.filename))); |
free(G.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(G.buildpath))); |
free(G.buildpath); |
/* no room for filenames: fatal */ |
return MPN_ERR_TOOLONG; |
} |
*G.end++ = '/'; |
*G.end = '\0'; |
Trace((stderr, "buildpath now = [%s]\n", FnFilter1(G.buildpath))); |
return MPN_OK; |
|
} /* end if (FUNCTION == APPEND_DIR) */ |
|
/*--------------------------------------------------------------------------- |
GETPATH: copy full path to the string pointed at by pathcomp, and free |
G.buildpath. |
---------------------------------------------------------------------------*/ |
|
if (FUNCTION == GETPATH) { |
strcpy(pathcomp, G.buildpath); |
Trace((stderr, "getting and freeing path [%s]\n", |
FnFilter1(pathcomp))); |
free(G.buildpath); |
G.buildpath = G.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 ((*G.end = *pathcomp++) != '\0') { |
++G.end; |
#ifdef SHORT_NAMES /* truncate name at 14 characters, typically */ |
if ((G.end-old_end) > FILENAME_MAX) /* GRR: proper constant? */ |
*(G.end = old_end + FILENAME_MAX) = '\0'; |
#endif |
if ((G.end-G.buildpath) >= FILNAMSIZ) { |
*--G.end = '\0'; |
Info(slide, 0x201, ((char *)slide, |
"checkdir warning: path too long; truncating\n\ |
%s\n -> %s\n", |
FnFilter1(G.filename), FnFilter2(G.buildpath))); |
return MPN_INF_TRUNC; /* filename truncated */ |
} |
} |
Trace((stderr, "buildpath now = [%s]\n", FnFilter1(G.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 ((G.buildpath = (char *)malloc(strlen(G.filename)+G.rootlen+ |
(uO.acorn_nfs_ext ? 5 : 1))) |
#else |
if ((G.buildpath = (char *)malloc(strlen(G.filename)+G.rootlen+1)) |
#endif |
== (char *)NULL) |
return MPN_NOMEM; |
if ((G.rootlen > 0) && !G.renamed_fullpath) { |
strcpy(G.buildpath, G.rootpath); |
G.end = G.buildpath + G.rootlen; |
} else { |
*G.buildpath = '\0'; |
G.end = G.buildpath; |
} |
Trace((stderr, "[%s]\n", FnFilter1(G.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) { |
G.rootlen = 0; |
return MPN_OK; |
} |
if (G.rootlen > 0) /* rootpath was already set, nothing to do */ |
return MPN_OK; |
if ((G.rootlen = strlen(pathcomp)) > 0) { |
char *tmproot; |
|
if ((tmproot = (char *)malloc(G.rootlen+2)) == (char *)NULL) { |
G.rootlen = 0; |
return MPN_NOMEM; |
} |
strcpy(tmproot, pathcomp); |
if (tmproot[G.rootlen-1] == '/') { |
tmproot[--G.rootlen] = '\0'; |
} |
if (G.rootlen > 0 && (SSTAT(tmproot, &G.statbuf) || |
!S_ISDIR(G.statbuf.st_mode))) |
{ /* path does not exist */ |
if (!G.create_dirs /* || iswild(tmproot) */ ) { |
free(tmproot); |
G.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\ |
%s\n", |
FnFilter1(tmproot), strerror(errno))); |
free(tmproot); |
G.rootlen = 0; |
/* path didn't exist, tried to create, and failed: */ |
/* file exists, or 2+ subdir levels required */ |
return MPN_ERR_SKIP; |
} |
} |
tmproot[G.rootlen++] = '/'; |
tmproot[G.rootlen] = '\0'; |
if ((G.rootpath = (char *)realloc(tmproot, G.rootlen+1)) == NULL) { |
free(tmproot); |
G.rootlen = 0; |
return MPN_NOMEM; |
} |
Trace((stderr, "rootpath now = [%s]\n", FnFilter1(G.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 (G.rootlen > 0) { |
free(G.rootpath); |
G.rootlen = 0; |
} |
return MPN_OK; |
} |
|
return MPN_INVALID; /* should never reach */ |
|
} /* end function checkdir() */ |
|
|
|
|
|
static int get_extattribs OF((__GPRO__ iztimes *pzt, ulg z_uidgid[2])); |
|
static int get_extattribs(__G__ pzt, z_uidgid) |
__GDEF |
iztimes *pzt; |
ulg z_uidgid[2]; |
{ |
/*--------------------------------------------------------------------------- |
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. |
---------------------------------------------------------------------------*/ |
int have_uidgid_flg; |
unsigned eb_izux_flg; |
|
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 ? pzt : NULL), |
#else |
pzt, |
#endif |
z_uidgid) : 0); |
if (eb_izux_flg & EB_UT_FL_MTIME) { |
TTrace((stderr, "\nget_extattribs: Unix e.f. modif. time = %ld\n", |
pzt->mtime)); |
} else { |
pzt->mtime = dos_to_unix_time(G.lrec.last_mod_dos_datetime); |
} |
if (eb_izux_flg & EB_UT_FL_ATIME) { |
TTrace((stderr, "get_extattribs: Unix e.f. access time = %ld\n", |
pzt->atime)); |
} else { |
pzt->atime = pzt->mtime; |
TTrace((stderr, "\nget_extattribs: modification/access times = %ld\n", |
pzt->mtime)); |
} |
|
/* if -X option was specified and we have UID/GID info, restore it */ |
have_uidgid_flg = |
#ifdef RESTORE_UIDGID |
(uO.X_flag && (eb_izux_flg & EB_UX2_VALID)); |
#else |
0; |
#endif |
return have_uidgid_flg; |
} |
|
|
|
|
/****************************/ |
/* Function close_outfile() */ |
/****************************/ |
|
void close_outfile(__G) /* GRR: change to return PK-style warning level */ |
__GDEF |
{ |
union { |
iztimes t3; /* mtime, atime, ctime */ |
ztimbuf t2; /* modtime, actime */ |
} zt; |
ulg z_uidgid[2]; |
int have_uidgid_flg; |
|
have_uidgid_flg = get_extattribs(__G__ &(zt.t3), z_uidgid); |
|
/*--------------------------------------------------------------------------- |
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. |
---------------------------------------------------------------------------*/ |
|
#ifdef SYMLINKS |
if (G.symlnk) { |
extent ucsize = (extent)G.lrec.ucsize; |
unsigned BeOSef_len = 0; |
extent slnk_entrysize; |
uch *BeOS_exfld; |
slinkentry *slnk_entry; |
|
if (!uO.J_flag) { |
/* Symlinks can have attributes, too. */ |
BeOS_exfld = scanBeOSexfield(G.extra_field, |
G.lrec.extra_field_length); |
if (BeOS_exfld) { |
BeOSef_len = makeword(EB_LEN + BeOS_exfld) + EB_HEADSIZE; |
} |
} |
|
/* 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. |
*/ |
slnk_entrysize = (sizeof(slinkentry) + 1) + BeOSef_len + |
ucsize + strlen(G.filename); |
|
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 = BeOSef_len; |
slnk_entry->target = slnk_entry->buf + BeOSef_len; |
slnk_entry->fname = slnk_entry->target + ucsize + 1; |
strcpy(slnk_entry->fname, G.filename); |
if (BeOSef_len > 0) |
memcpy(slnk_entry->buf, BeOS_exfld, BeOSef_len); |
|
/* 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; |
} |
#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, filtattr(__G__ G.pInfo->file_attr))) |
perror("chmod (file attributes) error"); |
#endif |
|
/* if -X option was specified and we have UID/GID info, restore it */ |
if (have_uidgid_flg |
/* check that both uid and gid values fit into their data sizes */ |
&& ((ulg)(uid_t)(z_uidgid[0]) == z_uidgid[0]) |
&& ((ulg)(gid_t)(z_uidgid[1]) == z_uidgid[1])) { |
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, CannotSetItemUidGid, |
z_uidgid[0], z_uidgid[1], FnFilter1(G.filename), |
strerror(errno))); |
else |
Info(slide, 0x201, ((char *)slide, CannotSetUidGid, |
z_uidgid[0], z_uidgid[1], strerror(errno))); |
} |
} |
|
/* skip restoring time stamps on user's request */ |
if (uO.D_flag <= 1) { |
/* set the file's access and modification times */ |
if (utime(G.filename, &(zt.t2))) { |
if (uO.qflag) |
Info(slide, 0x201, ((char *)slide, CannotSetItemTimestamps, |
FnFilter1(G.filename), strerror(errno))); |
else |
Info(slide, 0x201, ((char *)slide, CannotSetTimestamps, |
strerror(errno))); |
} |
} |
|
} /* end function close_outfile() */ |
|
|
|
|
#ifdef SYMLINKS |
int set_symlnk_attribs(__G__ slnk_entry) |
__GDEF |
slinkentry *slnk_entry; |
{ |
if (slnk_entry->attriblen > 0) |
setBeOSexfield(slnk_entry->fname, (uch *)slnk_entry->buf); |
/* currently, no error propagation... */ |
return PK_OK; |
} /* end function set_symlnk_attribs() */ |
#endif /* SYMLINKS */ |
|
|
|
|
#ifdef SET_DIR_ATTRIB |
/* messages of code for setting directory attributes */ |
# ifndef NO_CHMOD |
static ZCONST char DirlistChmodFailed[] = |
"warning: cannot set permissions for %s\n %s\n"; |
# endif |
|
|
int defer_dir_attribs(__G__ pd) |
__GDEF |
direntry **pd; |
{ |
uxdirattr *d_entry; |
|
d_entry = (uxdirattr *)malloc(sizeof(uxdirattr) + strlen(G.filename)); |
*pd = (direntry *)d_entry; |
if (d_entry == (uxdirattr *)NULL) { |
return PK_MEM; |
} |
d_entry->fn = d_entry->fnbuf; |
strcpy(d_entry->fn, G.filename); |
|
d_entry->perms = G.pInfo->file_attr; |
|
d_entry->have_uidgid = get_extattribs(__G__ &(d_entry->u.t3), |
d_entry->uidgid); |
return PK_OK; |
} /* end function defer_dir_attribs() */ |
|
|
int set_direc_attribs(__G__ d) |
__GDEF |
direntry *d; |
{ |
int errval = PK_OK; |
|
if (UxAtt(d)->have_uidgid && |
/* check that both uid and gid values fit into their data sizes */ |
((ulg)(uid_t)(UxAtt(d)->uidgid[0]) == UxAtt(d)->uidgid[0]) && |
((ulg)(gid_t)(UxAtt(d)->uidgid[1]) == UxAtt(d)->uidgid[1]) && |
chown(UxAtt(d)->fn, (uid_t)UxAtt(d)->uidgid[0], |
(gid_t)UxAtt(d)->uidgid[1])) |
{ |
Info(slide, 0x201, ((char *)slide, CannotSetItemUidGid, |
UxAtt(d)->uidgid[0], UxAtt(d)->uidgid[1], FnFilter1(d->fn), |
strerror(errno))); |
if (!errval) |
errval = PK_WARN; |
} |
/* Skip restoring directory time stamps on user' request. */ |
if (uO.D_flag <= 0) { |
/* restore directory timestamps */ |
if (utime(d->fn, (const struct utimbuf *)&UxAtt(d)->u.t2)) { |
Info(slide, 0x201, ((char *)slide, CannotSetItemTimestamps, |
FnFilter1(d->fn), strerror(errno))); |
if (!errval) |
errval = PK_WARN; |
} |
} |
#ifndef NO_CHMOD |
if (chmod(d->fn, filtattr(__G__ UxAtt(d)->perms))) { |
Info(slide, 0x201, ((char *)slide, DirlistChmodFailed, |
FnFilter1(d->fn), strerror(errno))); |
if (!errval) |
errval = PK_WARN; |
} |
#endif /* !NO_CHMOD */ |
return errval; |
} /* end function set_direc_attribs() */ |
|
#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__, |
#else |
"(unknown compiler) ","", |
#endif |
"BeOS ", |
|
#ifdef __POWERPC__ |
"(PowerPC)", |
#else |
# ifdef __INTEL__ |
"(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 attr_size ) |
{ |
int retval = EOK; |
unsigned char *ptr; |
const unsigned char *guard; |
int fd; |
|
ptr = (unsigned char *)attr_buff; |
guard = ptr + attr_size; |
|
fd = open(name, O_RDWR | O_NOTRAVERSE); |
if (fd < 0) { |
return errno; /* should it be -fd ? */ |
} |
|
while (ptr < guard) { |
ssize_t wrote_bytes; |
struct attr_info fa_info; |
const char *attr_name; |
unsigned char *attr_data; |
|
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(&fa_info, ptr, sizeof(struct attr_info)); |
fa_info.type = (uint32)B_BENDIAN_TO_HOST_INT32( fa_info.type ); |
fa_info.size = (off_t)B_BENDIAN_TO_HOST_INT64( fa_info.size ); |
ptr += sizeof(struct attr_info); |
|
if (fa_info.size < 0LL) { |
Info(slide, 0x201, ((char *)slide, |
"warning: skipping attribute with invalid length (%Ld)\n", |
fa_info.size)); |
break; |
} |
|
attr_data = ptr; |
ptr += fa_info.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( fa_info.type, attr_data, fa_info.size, |
B_SWAP_BENDIAN_TO_HOST ); |
|
wrote_bytes = fs_write_attr(fd, attr_name, fa_info.type, 0, |
attr_data, fa_info.size); |
if (wrote_bytes != fa_info.size) { |
Info(slide, 0x201, ((char *)slide, |
"warning: wrote %ld attribute bytes of %ld\n", |
(unsigned long)wrote_bytes,(unsigned long)fa_info.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 < (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); |
} |
|
return; |
} |
|
#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 |