beos.c

zip压缩

            if ((end-buildpath) >= FILNAMSIZ) {
                *--end = '\0';
                Info(slide, 0x201, ((char *)slide,
                  "checkdir warning:  path too long; truncating\n\
                   %s\n                -> %s\n",
                  FnFilter1(G.filename), FnFilter2(buildpath)));
                return MPN_INF_TRUNC;   /* filename truncated */
            }
        }
        Trace((stderr, "buildpath now = [%s]\n", FnFilter1(buildpath)));
        /* could check for existence here, prompt for new name... */
        return MPN_OK;
    }

/*---------------------------------------------------------------------------
    INIT:  allocate and initialize buffer space for the file currently being
    extracted.  If file was renamed with an absolute path, don't prepend the
    extract-to path.
  ---------------------------------------------------------------------------*/

/* GRR:  for VMS and TOPS-20, add up to 13 to strlen */

    if (FUNCTION == INIT) {
        Trace((stderr, "initializing buildpath to "));
#ifdef ACORN_FTYPE_NFS
        if ((buildpath = (char *)malloc(strlen(G.filename)+rootlen+
                                        (uO.acorn_nfs_ext ? 5 : 1)))
#else
        if ((buildpath = (char *)malloc(strlen(G.filename)+rootlen+1))
#endif
            == (char *)NULL)
            return MPN_NOMEM;
        if ((rootlen > 0) && !renamed_fullpath) {
            strcpy(buildpath, rootpath);
            end = buildpath + rootlen;
        } else {
            *buildpath = '\0';
            end = buildpath;
        }
        Trace((stderr, "[%s]\n", FnFilter1(buildpath)));
        return MPN_OK;
    }

/*---------------------------------------------------------------------------
    ROOT:  if appropriate, store the path in rootpath and create it if
    necessary; else assume it's a zipfile member and return.  This path
    segment gets used in extracting all members from every zipfile specified
    on the command line.
  ---------------------------------------------------------------------------*/

#if (!defined(SFX) || defined(SFX_EXDIR))
    if (FUNCTION == ROOT) {
        Trace((stderr, "initializing root path to [%s]\n",
          FnFilter1(pathcomp)));
        if (pathcomp == (char *)NULL) {
            rootlen = 0;
            return MPN_OK;
        }
        if (rootlen > 0)        /* rootpath was already set, nothing to do */
            return MPN_OK;
        if ((rootlen = strlen(pathcomp)) > 0) {
            char *tmproot;

            if ((tmproot = (char *)malloc(rootlen+2)) == (char *)NULL) {
                rootlen = 0;
                return MPN_NOMEM;
            }
            strcpy(tmproot, pathcomp);
            if (tmproot[rootlen-1] == '/') {
                tmproot[--rootlen] = '\0';
            }
            if (rootlen > 0 && (stat(tmproot, &G.statbuf) ||
                                !S_ISDIR(G.statbuf.st_mode)))
            {   /* path does not exist */
                if (!G.create_dirs /* || iswild(tmproot) */ ) {
                    free(tmproot);
                    rootlen = 0;
                    /* skip (or treat as stored file) */
                    return MPN_INF_SKIP;
                }
                /* create the directory (could add loop here scanning tmproot
                 * to create more than one level, but why really necessary?) */
                if (mkdir(tmproot, 0777) == -1) {
                    Info(slide, 1, ((char *)slide,
                      "checkdir:  cannot create extraction directory: %s\n",
                      FnFilter1(tmproot)));
                    free(tmproot);
                    rootlen = 0;
                    /* path didn't exist, tried to create, and failed: */
                    /* file exists, or 2+ subdir levels required */
                    return MPN_ERR_SKIP;
                }
            }
            tmproot[rootlen++] = '/';
            tmproot[rootlen] = '\0';
            if ((rootpath = (char *)realloc(tmproot, rootlen+1)) == NULL) {
                free(tmproot);
                rootlen = 0;
                return MPN_NOMEM;
            }
            Trace((stderr, "rootpath now = [%s]\n", FnFilter1(rootpath)));
        }
        return MPN_OK;
    }
#endif /* !SFX || SFX_EXDIR */

/*---------------------------------------------------------------------------
    END:  free rootpath, immediately prior to program exit.
  ---------------------------------------------------------------------------*/

    if (FUNCTION == END) {
        Trace((stderr, "freeing rootpath\n"));
        if (rootlen > 0) {
            free(rootpath);
            rootlen = 0;
        }
        return MPN_OK;
    }

    return MPN_INVALID; /* should never reach */

} /* end function checkdir() */






/****************************/
/* Function close_outfile() */
/****************************/

void close_outfile(__G)    /* GRR: change to return PK-style warning level */
    __GDEF
{
    iztimes zt;
    ush z_uidgid[2];
    unsigned eb_izux_flg;

/*---------------------------------------------------------------------------
    If symbolic links are supported, allocate a storage area, put the uncom-
    pressed "data" in it, and create the link.  Since we know it's a symbolic
    link to start with, we shouldn't have to worry about overflowing unsigned
    ints with unsigned longs.
  ---------------------------------------------------------------------------*/

#ifdef SYMLINKS
    if (G.symlnk) {
        unsigned ucsize = (unsigned)G.lrec.ucsize;
        char *linktarget = (char *)malloc((unsigned)G.lrec.ucsize+1);

        fclose(G.outfile);                      /* close "data" file... */
        G.outfile = fopen(G.filename, FOPR);    /* ...and reopen for reading */
        if (!linktarget || fread(linktarget, 1, ucsize, G.outfile) !=
                           (int)ucsize)
        {
            Info(slide, 0x201, ((char *)slide,
              "warning:  symbolic link (%s) failed\n", FnFilter1(G.filename)));
            if (linktarget)
                free(linktarget);
            fclose(G.outfile);
            return;
        }
        fclose(G.outfile);                  /* close "data" file for good... */
        unlink(G.filename);                 /* ...and delete it */
        linktarget[ucsize] = '\0';
        if (QCOND2)
            Info(slide, 0, ((char *)slide, "-> %s ", FnFilter1(linktarget)));
        if (symlink(linktarget, G.filename))  /* create the real link */
            perror("symlink error");

        if (!uO.J_flag) {
            /* Symlinks can have attributes, too. */
            void *ptr = scanBeOSexfield( G.extra_field,
                                         G.lrec.extra_field_length );
            if (ptr) {
                setBeOSexfield( G.filename, ptr );
            }
        }

        free(linktarget);
        return;                             /* can't set time on symlinks */
    }
#endif /* SYMLINKS */

    fclose(G.outfile);

    /* handle the BeOS extra field if present */
    if (!uO.J_flag) {
        void *ptr = scanBeOSexfield( G.extra_field,
                                     G.lrec.extra_field_length );

        if (ptr) {
            setBeOSexfield( G.filename, ptr );
#ifdef BEOS_ASSIGN_FILETYPE
        } else {
            /* Otherwise, ask the system to try assigning a MIME type. */
            assign_MIME( G.filename );
#endif
        }
    }

/*---------------------------------------------------------------------------
    Change the file permissions from default ones to those stored in the
    zipfile.
  ---------------------------------------------------------------------------*/

#ifndef NO_CHMOD
    if (chmod(G.filename, 0xffff & G.pInfo->file_attr))
        perror("chmod (file attributes) error");
#endif

/*---------------------------------------------------------------------------
    Convert from MSDOS-format local time and date to Unix-format 32-bit GMT
    time:  adjust base year from 1980 to 1970, do usual conversions from
    yy/mm/dd hh:mm:ss to elapsed seconds, and account for timezone and day-
    light savings time differences.  If we have a Unix extra field, however,
    we're laughing:  both mtime and atime are ours.  On the other hand, we
    then have to check for restoration of UID/GID.
  ---------------------------------------------------------------------------*/

    eb_izux_flg = (G.extra_field ? ef_scan_for_izux(G.extra_field,
                   G.lrec.extra_field_length, 0, G.lrec.last_mod_dos_datetime,
#ifdef IZ_CHECK_TZ
                   (G.tz_is_valid ? &zt : NULL),
#else
                   &zt,
#endif
                   z_uidgid) : 0);
    if (eb_izux_flg & EB_UT_FL_MTIME) {
        TTrace((stderr, "\nclose_outfile:  Unix e.f. modif. time = %ld\n",
          zt.mtime));
    } else {
        zt.mtime = dos_to_unix_time(G.lrec.last_mod_dos_datetime);
    }
    if (eb_izux_flg & EB_UT_FL_ATIME) {
        TTrace((stderr, "close_outfile:  Unix e.f. access time = %ld\n",
          zt.atime));
    } else {
        zt.atime = zt.mtime;
        TTrace((stderr, "\nclose_outfile:  modification/access times = %ld\n",
          zt.mtime));
    }

    /* if -X option was specified and we have UID/GID info, restore it */
    if (uO.X_flag && eb_izux_flg & EB_UX2_VALID) {
        TTrace((stderr, "close_outfile:  restoring Unix UID/GID info\n"));
        if (chown(G.filename, (uid_t)z_uidgid[0], (gid_t)z_uidgid[1]))
        {
            if (uO.qflag)
                Info(slide, 0x201, ((char *)slide,
                  "warning:  cannot set UID %d and/or GID %d for %s\n",
                  z_uidgid[0], z_uidgid[1], FnFilter1(G.filename)));
            else
                Info(slide, 0x201, ((char *)slide,
                  " (warning) cannot set UID %d and/or GID %d",
                  z_uidgid[0], z_uidgid[1]));
        }
    }

    /* set the file's access and modification times */
    if (utime(G.filename, (struct utimbuf *)&zt)) {
        if (uO.qflag)
            Info(slide, 0x201, ((char *)slide,
              "warning:  cannot set time for %s\n", FnFilter1(G.filename)));
        else
            Info(slide, 0x201, ((char *)slide,
              " (warning) cannot set time"));
    }

} /* end function close_outfile() */




#ifdef SET_DIR_ATTRIB
/* messages of code for setting directory attributes */
static char Far DirlistUidGidFailed[] =
  "warning:  cannot set UID %d and/or GID %d for %s\n";
static char Far DirlistUtimeFailed[] =
  "warning:  cannot set modification, access times for %s\n";
#  ifndef NO_CHMOD
  static char Far DirlistChmodFailed[] =
    "warning:  cannot set permissions for %s\n";
#  endif


int set_direc_attribs(__G__ d)
    __GDEF
    dirtime *d;
{
    int errval = PK_OK;

    if (d->have_uidgid &&
        chown(d->fn, (uid_t)d->uidgid[0], (gid_t)d->uidgid[1]))
    {
        Info(slide, 0x201, ((char *)slide,
          LoadFarString(DirlistUidGidFailed),
          d->uidgid[0], d->uidgid[1], d->fn));
        if (!errval)
            errval = PK_WARN;
    }
    if (utime(d->fn, (const struct utimbuf *)&d->u.t2)) {
        Info(slide, 0x201, ((char *)slide,
          LoadFarString(DirlistUtimeFailed), FnFilter1(d->fn)));
        if (!errval)
            errval = PK_WARN;
    }
#ifndef NO_CHMOD
    if (chmod(d->fn, 0xffff & d->perms)) {
        Info(slide, 0x201, ((char *)slide,
          LoadFarString(DirlistChmodFailed), FnFilter1(d->fn)));
        /* perror("chmod (file attributes) error"); */
        if (!errval)
            errval = PK_WARN;
    }
#endif /* !NO_CHMOD */
    return errval;
} /* end function set_directory_attributes() */

#endif /* SET_DIR_ATTRIB */




#ifdef TIMESTAMP

/***************************/
/*  Function stamp_file()  */
/***************************/

int stamp_file(fname, modtime)
    ZCONST char *fname;