f0d81ffd1c
which included commits to RCS files with non-trunk default branches. git-svn-id: svn://10.65.10.50/trunk@5403 c028cbd2-c16b-5b4b-a496-9718f37d4682
948 lines
32 KiB
C
Executable File
948 lines
32 KiB
C
Executable File
/*---------------------------------------------------------------------------
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beos.c
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BeOS-specific routines for use with Info-ZIP's UnZip 5.30 and later.
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(based on unix/unix.c)
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Contains: readdir()
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do_wild() <-- generic enough to put in fileio.c?
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mapattr()
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mapname()
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checkdir()
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mkdir()
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close_outfile()
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version()
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scanBeOSexfield()
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isBeOSexfield()
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set_file_attrs()
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setBeOSexfield()
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printBeOSexfield()
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---------------------------------------------------------------------------*/
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#define UNZIP_INTERNAL
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#include "unzip.h"
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#include "beos.h"
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#include <errno.h> /* Just make sure we've got a few things... */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <dirent.h>
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/* For the new post-DR8 file attributes */
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#include <fs_attr.h>
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int set_file_attrs( const char *, const unsigned char *, const off_t );
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/* I haven't gotten gcc for DR9 yet... */
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#ifdef __GNUC__
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#warn GNU C is not supported right now, you have been warned!
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#endif
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static int created_dir; /* used in mapname(), checkdir() */
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static int renamed_fullpath; /* ditto */
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#ifndef SFX
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/**********************/
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/* Function do_wild() */ /* for porting: dir separator; match(ignore_case) */
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/**********************/
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char *do_wild(__G__ wildspec)
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__GDEF
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char *wildspec; /* only used first time on a given dir */
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{
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static DIR *dir = (DIR *)NULL;
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static char *dirname, *wildname, matchname[FILNAMSIZ];
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static int firstcall=TRUE, have_dirname, dirnamelen;
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struct dirent *file;
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/* Even when we're just returning wildspec, we *always* do so in
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* matchname[]--calling routine is allowed to append four characters
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* to the returned string, and wildspec may be a pointer to argv[].
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*/
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if (firstcall) { /* first call: must initialize everything */
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firstcall = FALSE;
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/* break the wildspec into a directory part and a wildcard filename */
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if ((wildname = strrchr(wildspec, '/')) == (char *)NULL) {
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dirname = ".";
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dirnamelen = 1;
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have_dirname = FALSE;
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wildname = wildspec;
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} else {
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++wildname; /* point at character after '/' */
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dirnamelen = wildname - wildspec;
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if ((dirname = (char *)malloc(dirnamelen+1)) == (char *)NULL) {
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Info(slide, 0x201, ((char *)slide,
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"warning: can't allocate wildcard buffers\n"));
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strcpy(matchname, wildspec);
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return matchname; /* but maybe filespec was not a wildcard */
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}
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strncpy(dirname, wildspec, dirnamelen);
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dirname[dirnamelen] = '\0'; /* terminate for strcpy below */
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have_dirname = TRUE;
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}
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if ((dir = opendir(dirname)) != (DIR *)NULL) {
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while ((file = readdir(dir)) != (struct dirent *)NULL) {
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if (file->d_name[0] == '.' && wildname[0] != '.')
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continue; /* Unix: '*' and '?' do not match leading dot */
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if (match(file->d_name, wildname, 0)) { /* 0 == case sens. */
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if (have_dirname) {
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strcpy(matchname, dirname);
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strcpy(matchname+dirnamelen, file->d_name);
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} else
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strcpy(matchname, file->d_name);
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return matchname;
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}
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}
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/* if we get to here directory is exhausted, so close it */
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closedir(dir);
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dir = (DIR *)NULL;
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}
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/* return the raw wildspec in case that works (e.g., directory not
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* searchable, but filespec was not wild and file is readable) */
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strcpy(matchname, wildspec);
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return matchname;
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}
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/* last time through, might have failed opendir but returned raw wildspec */
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if (dir == (DIR *)NULL) {
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firstcall = TRUE; /* nothing left to try--reset for new wildspec */
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if (have_dirname)
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free(dirname);
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return (char *)NULL;
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}
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/* If we've gotten this far, we've read and matched at least one entry
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* successfully (in a previous call), so dirname has been copied into
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* matchname already.
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*/
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while ((file = readdir(dir)) != (struct dirent *)NULL)
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if (match(file->d_name, wildname, 0)) { /* 0 == don't ignore case */
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if (have_dirname) {
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/* strcpy(matchname, dirname); */
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strcpy(matchname+dirnamelen, file->d_name);
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} else
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strcpy(matchname, file->d_name);
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return matchname;
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}
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closedir(dir); /* have read at least one dir entry; nothing left */
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dir = (DIR *)NULL;
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firstcall = TRUE; /* reset for new wildspec */
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if (have_dirname)
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free(dirname);
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return (char *)NULL;
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} /* end function do_wild() */
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#endif /* !SFX */
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/**********************/
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/* Function mapattr() */
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/**********************/
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int mapattr(__G)
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__GDEF
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{
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ulg tmp = G.crec.external_file_attributes;
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switch (G.pInfo->hostnum) {
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case UNIX_:
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case VMS_:
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case BEOS_:
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G.pInfo->file_attr = (unsigned)(tmp >> 16);
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return 0;
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case AMIGA_:
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tmp = (unsigned)(tmp>>17 & 7); /* Amiga RWE bits */
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G.pInfo->file_attr = (unsigned)(tmp<<6 | tmp<<3 | tmp);
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break;
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/* all remaining cases: expand MSDOS read-only bit into write perms */
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case FS_FAT_:
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case FS_HPFS_:
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case FS_NTFS_:
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case MAC_:
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case ATARI_: /* (used to set = 0666) */
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case TOPS20_:
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default:
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tmp = !(tmp & 1) << 1; /* read-only bit --> write perms bits */
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G.pInfo->file_attr = (unsigned)(0444 | tmp<<6 | tmp<<3 | tmp);
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break;
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} /* end switch (host-OS-created-by) */
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/* for originating systems with no concept of "group," "other," "system": */
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umask( (int)(tmp=umask(0)) ); /* apply mask to expanded r/w(/x) perms */
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G.pInfo->file_attr &= ~tmp;
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return 0;
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} /* end function mapattr() */
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/************************/
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/* Function mapname() */
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/************************/
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/* return 0 if no error, 1 if caution (filename */
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int mapname(__G__ renamed) /* truncated), 2 if warning (skip file because */
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__GDEF /* dir doesn't exist), 3 if error (skip file), */
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int renamed; /* or 10 if out of memory (skip file) */
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{ /* [also IZ_VOL_LABEL, IZ_CREATED_DIR] */
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char pathcomp[FILNAMSIZ]; /* path-component buffer */
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char *pp, *cp=(char *)NULL; /* character pointers */
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char *lastsemi=(char *)NULL; /* pointer to last semi-colon in pathcomp */
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int quote = FALSE; /* flags */
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int error = 0;
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register unsigned workch; /* hold the character being tested */
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/*---------------------------------------------------------------------------
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Initialize various pointers and counters and stuff.
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---------------------------------------------------------------------------*/
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if (G.pInfo->vollabel)
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return IZ_VOL_LABEL; /* can't set disk volume labels in Unix */
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/* can create path as long as not just freshening, or if user told us */
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G.create_dirs = (!G.fflag || renamed);
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created_dir = FALSE; /* not yet */
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/* user gave full pathname: don't prepend rootpath */
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renamed_fullpath = (renamed && (*G.filename == '/'));
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if (checkdir(__G__ (char *)NULL, INIT) == 10)
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return 10; /* initialize path buffer, unless no memory */
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*pathcomp = '\0'; /* initialize translation buffer */
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pp = pathcomp; /* point to translation buffer */
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if (G.jflag) /* junking directories */
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cp = (char *)strrchr(G.filename, '/');
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if (cp == (char *)NULL) /* no '/' or not junking dirs */
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cp = G.filename; /* point to internal zipfile-member pathname */
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else
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++cp; /* point to start of last component of path */
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/*---------------------------------------------------------------------------
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Begin main loop through characters in filename.
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---------------------------------------------------------------------------*/
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while ((workch = (uch)*cp++) != 0) {
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if (quote) { /* if character quoted, */
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*pp++ = (char)workch; /* include it literally */
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quote = FALSE;
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} else
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switch (workch) {
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case '/': /* can assume -j flag not given */
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*pp = '\0';
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if ((error = checkdir(__G__ pathcomp, APPEND_DIR)) > 1)
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return error;
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pp = pathcomp; /* reset conversion buffer for next piece */
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lastsemi = (char *)NULL; /* leave directory semi-colons alone */
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break;
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case ';': /* VMS version (or DEC-20 attrib?) */
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lastsemi = pp;
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*pp++ = ';'; /* keep for now; remove VMS ";##" */
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break; /* later, if requested */
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case '\026': /* control-V quote for special chars */
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quote = TRUE; /* set flag for next character */
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break;
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default:
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/* allow European characters in filenames: */
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if (isprint(workch) || (128 <= workch && workch <= 254))
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*pp++ = (char)workch;
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} /* end switch */
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} /* end while loop */
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*pp = '\0'; /* done with pathcomp: terminate it */
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/* if not saving them, remove VMS version numbers (appended ";###") */
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if (!G.V_flag && lastsemi) {
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pp = lastsemi + 1;
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while (isdigit((uch)(*pp)))
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++pp;
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if (*pp == '\0') /* only digits between ';' and end: nuke */
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*lastsemi = '\0';
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}
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/*---------------------------------------------------------------------------
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Report if directory was created (and no file to create: filename ended
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in '/'), check name to be sure it exists, and combine path and name be-
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fore exiting.
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---------------------------------------------------------------------------*/
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if (G.filename[strlen(G.filename) - 1] == '/') {
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checkdir(__G__ G.filename, GETPATH);
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if (created_dir) {
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if (QCOND2) {
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Info(slide, 0, ((char *)slide, " creating: %s\n",
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G.filename));
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}
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return IZ_CREATED_DIR; /* set dir time (note trailing '/') */
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}
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return 2; /* dir existed already; don't look for data to extract */
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}
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if (*pathcomp == '\0') {
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Info(slide, 1, ((char *)slide, "mapname: conversion of %s failed\n",
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G.filename));
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return 3;
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}
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checkdir(__G__ pathcomp, APPEND_NAME); /* returns 1 if truncated: care? */
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checkdir(__G__ G.filename, GETPATH);
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return error;
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} /* end function mapname() */
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/***********************/
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/* Function checkdir() */
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/***********************/
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int checkdir(__G__ pathcomp, flag)
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__GDEF
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char *pathcomp;
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int flag;
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/*
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* returns: 1 - (on APPEND_NAME) truncated filename
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* 2 - path doesn't exist, not allowed to create
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* 3 - path doesn't exist, tried to create and failed; or
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* path exists and is not a directory, but is supposed to be
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* 4 - path is too long
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* 10 - can't allocate memory for filename buffers
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*/
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{
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static int rootlen = 0; /* length of rootpath */
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static char *rootpath; /* user's "extract-to" directory */
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static char *buildpath; /* full path (so far) to extracted file */
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static char *end; /* pointer to end of buildpath ('\0') */
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# define FN_MASK 7
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# define FUNCTION (flag & FN_MASK)
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/*---------------------------------------------------------------------------
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APPEND_DIR: append the path component to the path being built and check
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for its existence. If doesn't exist and we are creating directories, do
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so for this one; else signal success or error as appropriate.
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---------------------------------------------------------------------------*/
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if (FUNCTION == APPEND_DIR) {
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int too_long = FALSE;
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#ifdef SHORT_NAMES
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char *old_end = end;
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#endif
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Trace((stderr, "appending dir segment [%s]\n", pathcomp));
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while ((*end = *pathcomp++) != '\0')
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++end;
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#ifdef SHORT_NAMES /* path components restricted to 14 chars, typically */
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if ((end-old_end) > FILENAME_MAX) /* GRR: proper constant? */
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*(end = old_end + FILENAME_MAX) = '\0';
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#endif
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/* GRR: could do better check, see if overrunning buffer as we go:
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* check end-buildpath after each append, set warning variable if
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* within 20 of FILNAMSIZ; then if var set, do careful check when
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* appending. Clear variable when begin new path. */
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if ((end-buildpath) > FILNAMSIZ-3) /* need '/', one-char name, '\0' */
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too_long = TRUE; /* check if extracting directory? */
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if (stat(buildpath, &G.statbuf)) { /* path doesn't exist */
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if (!G.create_dirs) { /* told not to create (freshening) */
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free(buildpath);
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return 2; /* path doesn't exist: nothing to do */
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}
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if (too_long) {
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Info(slide, 1, ((char *)slide,
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"checkdir error: path too long: %s\n", buildpath));
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free(buildpath);
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return 4; /* no room for filenames: fatal */
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}
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if (mkdir(buildpath, 0777) == -1) { /* create the directory */
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Info(slide, 1, ((char *)slide,
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"checkdir error: can't create %s\n\
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unable to process %s.\n", buildpath, G.filename));
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free(buildpath);
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return 3; /* path didn't exist, tried to create, failed */
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}
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created_dir = TRUE;
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} else if (!S_ISDIR(G.statbuf.st_mode)) {
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Info(slide, 1, ((char *)slide,
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"checkdir error: %s exists but is not directory\n\
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unable to process %s.\n", buildpath, G.filename));
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free(buildpath);
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return 3; /* path existed but wasn't dir */
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}
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if (too_long) {
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Info(slide, 1, ((char *)slide,
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"checkdir error: path too long: %s\n", buildpath));
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free(buildpath);
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return 4; /* no room for filenames: fatal */
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}
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*end++ = '/';
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*end = '\0';
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Trace((stderr, "buildpath now = [%s]\n", buildpath));
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return 0;
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} /* end if (FUNCTION == APPEND_DIR) */
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/*---------------------------------------------------------------------------
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GETPATH: copy full path to the string pointed at by pathcomp, and free
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buildpath.
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---------------------------------------------------------------------------*/
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if (FUNCTION == GETPATH) {
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strcpy(pathcomp, buildpath);
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Trace((stderr, "getting and freeing path [%s]\n", pathcomp));
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free(buildpath);
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buildpath = end = (char *)NULL;
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return 0;
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}
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/*---------------------------------------------------------------------------
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APPEND_NAME: assume the path component is the filename; append it and
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return without checking for existence.
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---------------------------------------------------------------------------*/
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if (FUNCTION == APPEND_NAME) {
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#ifdef SHORT_NAMES
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char *old_end = end;
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#endif
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Trace((stderr, "appending filename [%s]\n", pathcomp));
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while ((*end = *pathcomp++) != '\0') {
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++end;
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#ifdef SHORT_NAMES /* truncate name at 14 characters, typically */
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if ((end-old_end) > FILENAME_MAX) /* GRR: proper constant? */
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*(end = old_end + FILENAME_MAX) = '\0';
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#endif
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if ((end-buildpath) >= FILNAMSIZ) {
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*--end = '\0';
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Info(slide, 0x201, ((char *)slide,
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"checkdir warning: path too long; truncating\n\
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%s\n -> %s\n", G.filename, buildpath));
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return 1; /* filename truncated */
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}
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}
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Trace((stderr, "buildpath now = [%s]\n", buildpath));
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return 0; /* could check for existence here, prompt for new name... */
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}
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/*---------------------------------------------------------------------------
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INIT: allocate and initialize buffer space for the file currently being
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extracted. If file was renamed with an absolute path, don't prepend the
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extract-to path.
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---------------------------------------------------------------------------*/
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/* GRR: for VMS and TOPS-20, add up to 13 to strlen */
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if (FUNCTION == INIT) {
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Trace((stderr, "initializing buildpath to "));
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if ((buildpath = (char *)malloc(strlen(G.filename)+rootlen+1)) ==
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(char *)NULL)
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return 10;
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if ((rootlen > 0) && !renamed_fullpath) {
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strcpy(buildpath, rootpath);
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end = buildpath + rootlen;
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} else {
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*buildpath = '\0';
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end = buildpath;
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}
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Trace((stderr, "[%s]\n", buildpath));
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return 0;
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}
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/*---------------------------------------------------------------------------
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ROOT: if appropriate, store the path in rootpath and create it if neces-
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sary; else assume it's a zipfile member and return. This path segment
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gets used in extracting all members from every zipfile specified on the
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command line.
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---------------------------------------------------------------------------*/
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#if (!defined(SFX) || defined(SFX_EXDIR))
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if (FUNCTION == ROOT) {
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Trace((stderr, "initializing root path to [%s]\n", pathcomp));
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if (pathcomp == (char *)NULL) {
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rootlen = 0;
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return 0;
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}
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if ((rootlen = strlen(pathcomp)) > 0) {
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if (pathcomp[rootlen-1] == '/') {
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pathcomp[--rootlen] = '\0';
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}
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if (rootlen > 0 && (stat(pathcomp, &G.statbuf) ||
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!S_ISDIR(G.statbuf.st_mode))) /* path does not exist */
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{
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if (!G.create_dirs /* || iswild(pathcomp) */ ) {
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rootlen = 0;
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return 2; /* skip (or treat as stored file) */
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}
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/* create the directory (could add loop here to scan pathcomp
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* and create more than one level, but why really necessary?) */
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if (mkdir(pathcomp, 0777) == -1) {
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Info(slide, 1, ((char *)slide,
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"checkdir: can't create extraction directory: %s\n",
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pathcomp));
|
|
rootlen = 0; /* path didn't exist, tried to create, and */
|
|
return 3; /* failed: file exists, or 2+ levels required */
|
|
}
|
|
}
|
|
if ((rootpath = (char *)malloc(rootlen+2)) == (char *)NULL) {
|
|
rootlen = 0;
|
|
return 10;
|
|
}
|
|
strcpy(rootpath, pathcomp);
|
|
rootpath[rootlen++] = '/';
|
|
rootpath[rootlen] = '\0';
|
|
Trace((stderr, "rootpath now = [%s]\n", rootpath));
|
|
}
|
|
return 0;
|
|
}
|
|
#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);
|
|
return 0;
|
|
}
|
|
|
|
return 99; /* 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) !=
|
|
(int)ucsize)
|
|
{
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"warning: symbolic link (%s) failed\n", 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';
|
|
Info(slide, 0, ((char *)slide, "-> %s ", linktarget));
|
|
if (symlink(linktarget, G.filename)) /* create the real link */
|
|
perror("symlink error");
|
|
free(linktarget);
|
|
return; /* can't set time on symlinks */
|
|
}
|
|
#endif /* SYMLINKS */
|
|
|
|
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. 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, &zt, 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_file_date,
|
|
G.lrec.last_mod_file_time);
|
|
}
|
|
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 (G.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]))
|
|
{
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"warning: can't set UID %d and/or GID %d for %s\n",
|
|
z_uidgid[0], z_uidgid[1], G.filename));
|
|
/* GRR: change return type to int and set up to return warning after utime() */
|
|
}
|
|
}
|
|
|
|
/* set the file's access and modification times */
|
|
if (utime(G.filename, (struct utimbuf *)&zt)) {
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"warning: can't set the time for %s\n", G.filename));
|
|
}
|
|
|
|
/* handle the BeOS extra field if present */
|
|
{
|
|
void *ptr = scanBeOSexfield( G.extra_field,
|
|
G.lrec.extra_field_length );
|
|
|
|
if( ptr ) {
|
|
setBeOSexfield( G.filename, ptr );
|
|
}
|
|
}
|
|
|
|
} /* end function close_outfile() */
|
|
|
|
|
|
|
|
#ifndef SFX
|
|
|
|
/************************/
|
|
/* Function version() */
|
|
/************************/
|
|
|
|
void version(__G)
|
|
__GDEF
|
|
{
|
|
sprintf((char *)slide, LoadFarString(CompiledWith),
|
|
#ifdef __MWERKS__
|
|
"Metrowerks CodeWarrior", "",
|
|
#else
|
|
# ifdef __GNUC__
|
|
"GNU C/C++", "",
|
|
# endif
|
|
#endif
|
|
"BeOS ",
|
|
|
|
#ifdef __POWERPC__
|
|
"(PowerPC)",
|
|
#else
|
|
/* Some day we may have other architectures... */
|
|
"(unknown)",
|
|
#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.
|
|
*/
|
|
uch *scanBeOSexfield( uch *extra_field, unsigned ef_len )
|
|
{
|
|
uch *ptr = extra_field;
|
|
|
|
while( ptr < extra_field + ef_len ) {
|
|
if( isBeOSexfield( ptr ) ) {
|
|
return ptr;
|
|
} else {
|
|
ush size;
|
|
|
|
ptr += 2; /* skip over the ID */
|
|
size = makeword( ptr ); /* find the size of this EF */
|
|
ptr += 2;
|
|
|
|
ptr += size; /* skip this EF */
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int isBeOSexfield( uch *extra_field )
|
|
{
|
|
if( extra_field != NULL ) {
|
|
uch *ptr = extra_field;
|
|
ush id = 0;
|
|
ush size = 0;
|
|
|
|
id = makeword( ptr );
|
|
ptr += 2;
|
|
size = makeword( ptr );
|
|
ptr += 2;
|
|
|
|
if( id == EF_BE_ID && size >= EF_BE_SIZE ) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/* 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)
|
|
*/
|
|
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 );
|
|
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;
|
|
const unsigned char *attr_data;
|
|
|
|
attr_name = (char *)&(ptr[0]);
|
|
ptr += strlen( attr_name ) + 1;
|
|
|
|
memcpy( &fa_info, ptr, sizeof( struct attr_info ) );
|
|
ptr += sizeof( struct attr_info );
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
void setBeOSexfield( 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 & EF_BE_FL_BADBITS ) {
|
|
/* corrupted or unsupported */
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"Unsupported flags set for this BeOS extra field, skipping.\n"));
|
|
return;
|
|
}
|
|
if( size <= EF_BE_SIZE ) {
|
|
/* corrupted, unsupported, or truncated */
|
|
Info(slide, 0x201, ((char *)slide,
|
|
"BeOS extra field is %d bytes, should be at least %d.\n",size,EF_BE_SIZE));
|
|
return;
|
|
}
|
|
|
|
/* Find the BeOS file attribute data. */
|
|
if( flags & EF_BE_FL_NATURAL ) {
|
|
/* 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 - EF_BE_SIZE );
|
|
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;
|
|
}
|
|
|
|
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_BE_ID ) {
|
|
/* not a 'Be' field */
|
|
printf( "\t*** Unknown field type (0x%04x, '%c%c')\n", id,
|
|
(char)(id >> 8), (char)id );
|
|
}
|
|
|
|
if( flags & EF_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 <= EF_BE_SIZE ) {
|
|
/* corrupted, unsupported, or truncated */
|
|
printf( "\t*** Corrupted BeOS extra field:\n" );
|
|
printf( "\t*** size is %d, should be larger than %d\n", size,
|
|
EF_BE_SIZE );
|
|
}
|
|
|
|
if( flags & EF_BE_FL_NATURAL ) {
|
|
/* Uncompressed data */
|
|
printf( "\tBeOS extra field data (uncompressed):\n" );
|
|
printf( "\t\t%d data bytes\n", full_size );
|
|
} else {
|
|
/* Compressed data */
|
|
printf( "\tBeOS extra field data (compressed):\n" );
|
|
printf( "\t\t%d compressed bytes\n", size - EF_BE_SIZE );
|
|
printf( "\t\t%d uncompressed bytes\n", full_size );
|
|
}
|
|
}
|