Example #1
0
File: clidfs.c Project: ekohl/samba
static char *clean_path(TALLOC_CTX *ctx, const char *path)
{
	size_t len;
	char *p1, *p2, *p;
	char *path_out;

	/* No absolute paths. */
	while (IS_DIRECTORY_SEP(*path)) {
		path++;
	}

	path_out = talloc_strdup(ctx, path);
	if (!path_out) {
		return NULL;
	}

	p1 = strchr_m(path_out, '*');
	p2 = strchr_m(path_out, '?');

	if (p1 || p2) {
		if (p1 && p2) {
			p = MIN(p1,p2);
		} else if (!p1) {
			p = p2;
		} else {
			p = p1;
		}
		*p = '\0';

		/* Now go back to the start of this component. */
		p1 = strrchr_m(path_out, '/');
		p2 = strrchr_m(path_out, '\\');
		p = MAX(p1,p2);
		if (p) {
			*p = '\0';
		}
	}

	/* Strip any trailing separator */

	len = strlen(path_out);
	if ( (len > 0) && IS_DIRECTORY_SEP(path_out[len-1])) {
		path_out[len-1] = '\0';
	}

	return path_out;
}
Example #2
0
static void cli_dfs_make_full_path( struct cli_state *cli,
					const char *dir,
					pstring path_out)
{
	/* Ensure the extrapath doesn't start with a separator. */
	while (IS_DIRECTORY_SEP(*dir)) {
		dir++;
	}

	pstr_sprintf( path_out, "\\%s\\%s\\%s", cli->desthost, cli->share, dir);
}
Example #3
0
static void clean_path(const char *path, pstring path_out)
{
	size_t len;
	char *p1, *p2, *p;
		
	/* No absolute paths. */
	while (IS_DIRECTORY_SEP(*path)) {
		path++;
	}

	pstrcpy(path_out, path);

	p1 = strchr_m(path_out, '*');
	p2 = strchr_m(path_out, '?');

	if (p1 || p2) {
		if (p1 && p2) {
			p = MIN(p1,p2);
		} else if (!p1) {
			p = p2;
		} else {
			p = p1;
		}
		*p = '\0';

		/* Now go back to the start of this component. */
		p1 = strrchr_m(path_out, '/');
		p2 = strrchr_m(path_out, '\\');
		p = MAX(p1,p2);
		if (p) {
			*p = '\0';
		}
	}

	/* Strip any trailing separator */

	len = strlen(path_out);
	if ( (len > 0) && IS_DIRECTORY_SEP(path_out[len-1])) {
		path_out[len-1] = '\0';
	}
}
Example #4
0
/* Return the current working directory.  Returns NULL on errors.
   Any other returned value must be freed with free.  This is used
   only when get_current_dir_name is not defined on the system.  */
char*
get_current_dir_name (void)
{
  char *buf;
  const char *pwd;
  struct stat dotstat, pwdstat;
  /* If PWD is accurate, use it instead of calling getwd.  PWD is
     sometimes a nicer name, and using it may avoid a fatal error if a
     parent directory is searchable but not readable.  */
    if ((pwd = egetenv ("PWD")) != 0
      && (IS_DIRECTORY_SEP (*pwd) || (*pwd && IS_DEVICE_SEP (pwd[1])))
      && stat (pwd, &pwdstat) == 0
      && stat (".", &dotstat) == 0
      && dotstat.st_ino == pwdstat.st_ino
      && dotstat.st_dev == pwdstat.st_dev
#ifdef MAXPATHLEN
      && strlen (pwd) < MAXPATHLEN
#endif
      )
    {
      buf = (char *) xmalloc (strlen (pwd) + 1);
      strcpy (buf, pwd);
    }
#ifdef HAVE_GETCWD
  else
    {
      size_t buf_size = 1024;
      for (;;)
        {
	  int tmp_errno;
	  buf = malloc (buf_size);
	  if (! buf)
	    break;
          if (getcwd (buf, buf_size) == buf)
            break;
	  tmp_errno = errno;
	  free (buf);
	  if (tmp_errno != ERANGE)
            {
              errno = tmp_errno;
              return NULL;
            }
          buf_size *= 2;
	  if (! buf_size)
	    {
	      errno = ENOMEM;
	      return NULL;
	    }
        }
    }
#else
  else
    {
Example #5
0
/* Add a source file name boundary marker in the output file.  */
static void
put_filename (char *filename)
{
  char *tmp;

  for (tmp = filename; *tmp; tmp++)
    {
      if (IS_DIRECTORY_SEP (*tmp))
	filename = tmp + 1;
    }

  printf ("\037S%s\n", filename);
}
Example #6
0
File: command.c Project: ecks/harry
int
set_log_file(const char *fname, int loglevel)
{
  int ret;
  char *p = NULL;
  const char *fullpath;
  
  /* Path detection. */
  if (! IS_DIRECTORY_SEP (*fname))
    {
      char cwd[MAXPATHLEN+1];
      cwd[MAXPATHLEN] = '\0';
      
      if (getcwd (cwd, MAXPATHLEN) == NULL)
        {
//          zlog_err ("config_log_file: Unable to alloc mem!");
          printf ("config_log_file: Unable to alloc mem!");
          return -1;
        }
      
      if ( (p = calloc (1, strlen (cwd) + strlen (fname) + 2))
          == NULL)
        {
          printf("config_log_file: Unable to alloc mem!");
          return -1;
        }
      sprintf (p, "%s/%s", cwd, fname);
      fullpath = p;
    }
  else
    fullpath = fname;

  ret = zlog_set_file (NULL, fullpath, loglevel);

  if (p)
    free(p);

  if (!ret)
    {
//      vty_out (vty, "can't open logfile %s\n", fname);
      printf("can't open logfile %s\n", fname);
      return -1;
    }

//  if (host.logfile)
//    XFREE (MTYPE_HOST, host.logfile);

//  host.logfile = XSTRDUP (MTYPE_HOST, fname);

  return 1;
}
Example #7
0
File: clidfs.c Project: ekohl/samba
static char *cli_dfs_make_full_path(TALLOC_CTX *ctx,
					struct cli_state *cli,
					const char *dir)
{
	char path_sep = '\\';

	/* Ensure the extrapath doesn't start with a separator. */
	while (IS_DIRECTORY_SEP(*dir)) {
		dir++;
	}

	if (cli->requested_posix_capabilities & CIFS_UNIX_POSIX_PATHNAMES_CAP) {
		path_sep = '/';
	}
	return talloc_asprintf(ctx, "%c%s%c%s%c%s",
			path_sep,
			cli_state_remote_name(cli),
			path_sep,
			cli->share,
			path_sep,
			dir);
}
Example #8
0
int
main (int argc, char **argv)
{
  char *inname, *outname;
  int indesc, outdesc;
  ssize_t nread;
  int wait_status;
  int c, preserve_mail = 0;

#ifndef MAIL_USE_SYSTEM_LOCK
  struct stat st;
  int tem;
  char *lockname;
  char *tempname;
  size_t inname_len, inname_dirlen;
  int desc;
#endif /* not MAIL_USE_SYSTEM_LOCK */

#ifdef MAIL_USE_MAILLOCK
  char *spool_name;
#endif

#ifdef MAIL_USE_POP
  int pop_reverse_order = 0;
# define ARGSTR "pr"
#else /* ! MAIL_USE_POP */
# define ARGSTR "p"
#endif /* MAIL_USE_POP */

  uid_t real_gid = getgid ();
  uid_t priv_gid = getegid ();

#ifdef WINDOWSNT
  /* Ensure all file i/o is in binary mode. */
  _fmode = _O_BINARY;
#endif

  delete_lockname = 0;

  while ((c = getopt (argc, argv, ARGSTR)) != EOF)
    {
      switch (c) {
#ifdef MAIL_USE_POP
      case 'r':
	pop_reverse_order = 1;
	break;
#endif
      case 'p':
	preserve_mail++;
	break;
      default:
	exit (EXIT_FAILURE);
      }
    }

  if (
#ifdef MAIL_USE_POP
      (argc - optind < 2) || (argc - optind > 3)
#else
      (argc - optind != 2)
#endif
      )
    {
#ifdef MAIL_USE_POP
      fprintf (stderr, "Usage: movemail [-p] [-r] inbox destfile%s\n",
	       " [POP-password]");
#else
      fprintf (stderr, "Usage: movemail [-p] inbox destfile%s\n", "");
#endif
      exit (EXIT_FAILURE);
    }

  inname = argv[optind];
  outname = argv[optind+1];

#ifdef MAIL_USE_MMDF
  mmdf_init (argv[0]);
#endif

  if (*outname == 0)
    fatal ("Destination file name is empty", 0, 0);

#ifdef MAIL_USE_POP
  if (!strncmp (inname, "po:", 3))
    {
      int status;

      status = popmail (inname + 3, outname, preserve_mail,
			(argc - optind == 3) ? argv[optind+2] : NULL,
			pop_reverse_order);
      exit (status);
    }

  if (setuid (getuid ()) < 0)
    fatal ("Failed to drop privileges", 0, 0);

#endif /* MAIL_USE_POP */

#ifndef DISABLE_DIRECT_ACCESS
#ifndef MAIL_USE_MMDF
#ifndef MAIL_USE_SYSTEM_LOCK
#ifdef MAIL_USE_MAILLOCK
  spool_name = mail_spool_name (inname);
  if (spool_name)
    {
#ifdef lint
      lockname = 0;
#endif
    }
  else
#endif
    {
      /* Use a lock file named after our first argument with .lock appended:
	 If it exists, the mail file is locked.  */
      /* Note: this locking mechanism is *required* by the mailer
	 (on systems which use it) to prevent loss of mail.

	 On systems that use a lock file, extracting the mail without locking
	 WILL occasionally cause loss of mail due to timing errors!

	 So, if creation of the lock file fails due to access
	 permission on the mail spool directory, you simply MUST
	 change the permission and/or make movemail a setgid program
	 so it can create lock files properly.

	 You might also wish to verify that your system is one which
	 uses lock files for this purpose.  Some systems use other methods.  */

      inname_len = strlen (inname);
      lockname = xmalloc (inname_len + sizeof ".lock");
      strcpy (lockname, inname);
      strcpy (lockname + inname_len, ".lock");
      for (inname_dirlen = inname_len;
	   inname_dirlen && !IS_DIRECTORY_SEP (inname[inname_dirlen - 1]);
	   inname_dirlen--)
	continue;
      tempname = xmalloc (inname_dirlen + sizeof "EXXXXXX");

      while (1)
	{
	  /* Create the lock file, but not under the lock file name.  */
	  /* Give up if cannot do that.  */

	  memcpy (tempname, inname, inname_dirlen);
	  strcpy (tempname + inname_dirlen, "EXXXXXX");
#ifdef HAVE_MKSTEMP
	  desc = mkstemp (tempname);
#else
	  mktemp (tempname);
	  if (!*tempname)
	    desc = -1;
	  else
	    {
	      unlink (tempname);
	      desc = open (tempname, O_WRONLY | O_CREAT | O_EXCL, 0600);
	    }
#endif
	  if (desc < 0)
	    {
	      int mkstemp_errno = errno;
	      error ("error while creating what would become the lock file",
		     0, 0);
	      errno = mkstemp_errno;
	      pfatal_with_name (tempname);
	    }
	  close (desc);

	  tem = link (tempname, lockname);

#ifdef EPERM
	  if (tem < 0 && errno == EPERM)
	    fatal ("Unable to create hard link between %s and %s",
		   tempname, lockname);
#endif

	  unlink (tempname);
	  if (tem >= 0)
	    break;
	  sleep (1);

	  /* If lock file is five minutes old, unlock it.
	     Five minutes should be good enough to cope with crashes
	     and wedgitude, and long enough to avoid being fooled
	     by time differences between machines.  */
	  if (stat (lockname, &st) >= 0)
	    {
	      time_t now = time (0);
	      if (st.st_ctime < now - 300)
		unlink (lockname);
	    }
	}

      delete_lockname = lockname;
    }
#endif /* not MAIL_USE_SYSTEM_LOCK */
#endif /* not MAIL_USE_MMDF */

  if (fork () == 0)
    {
      int lockcount = 0;
      int status = 0;
#if defined (MAIL_USE_MAILLOCK) && defined (HAVE_TOUCHLOCK)
      time_t touched_lock;
# ifdef lint
      touched_lock = 0;
# endif
#endif

      if (setuid (getuid ()) < 0 || setregid (-1, real_gid) < 0)
	fatal ("Failed to drop privileges", 0, 0);

#ifndef MAIL_USE_MMDF
#ifdef MAIL_USE_SYSTEM_LOCK
      indesc = open (inname, O_RDWR);
#else  /* if not MAIL_USE_SYSTEM_LOCK */
      indesc = open (inname, O_RDONLY);
#endif /* not MAIL_USE_SYSTEM_LOCK */
#else  /* MAIL_USE_MMDF */
      indesc = lk_open (inname, O_RDONLY, 0, 0, 10);
#endif /* MAIL_USE_MMDF */

      if (indesc < 0)
	pfatal_with_name (inname);

#ifdef BSD_SYSTEM
      /* In case movemail is setuid to root, make sure the user can
	 read the output file.  */
      /* This is desirable for all systems
	 but I don't want to assume all have the umask system call */
      umask (umask (0) & 0333);
#endif /* BSD_SYSTEM */
      outdesc = open (outname, O_WRONLY | O_CREAT | O_EXCL, 0666);
      if (outdesc < 0)
	pfatal_with_name (outname);

      if (setregid (-1, priv_gid) < 0)
	fatal ("Failed to regain privileges", 0, 0);

      /* This label exists so we can retry locking
	 after a delay, if it got EAGAIN or EBUSY.  */
    retry_lock:

      /* Try to lock it.  */
#ifdef MAIL_USE_MAILLOCK
      if (spool_name)
	{
	  /* The "0 - " is to make it a negative number if maillock returns
	     non-zero. */
	  status = 0 - maillock (spool_name, 1);
#ifdef HAVE_TOUCHLOCK
	  touched_lock = time (0);
#endif
	  lockcount = 5;
	}
      else
#endif /* MAIL_USE_MAILLOCK */
	{
#ifdef MAIL_USE_SYSTEM_LOCK
#ifdef MAIL_USE_LOCKF
	  status = lockf (indesc, F_LOCK, 0);
#else /* not MAIL_USE_LOCKF */
#ifdef WINDOWSNT
	  status = locking (indesc, LK_RLCK, -1L);
#else
	  status = flock (indesc, LOCK_EX);
#endif
#endif /* not MAIL_USE_LOCKF */
#endif /* MAIL_USE_SYSTEM_LOCK */
	}

      /* If it fails, retry up to 5 times
	 for certain failure codes.  */
      if (status < 0)
	{
	  if (++lockcount <= 5)
	    {
#ifdef EAGAIN
	      if (errno == EAGAIN)
		{
		  sleep (1);
		  goto retry_lock;
		}
#endif
#ifdef EBUSY
	      if (errno == EBUSY)
		{
		  sleep (1);
		  goto retry_lock;
		}
#endif
	    }

	  pfatal_with_name (inname);
	}

      {
	char buf[1024];

	while (1)
	  {
	    nread = read (indesc, buf, sizeof buf);
	    if (nread < 0)
	      pfatal_with_name (inname);
	    if (nread != write (outdesc, buf, nread))
	      {
		int saved_errno = errno;
		unlink (outname);
		errno = saved_errno;
		pfatal_with_name (outname);
	      }
	    if (nread < sizeof buf)
	      break;
#if defined (MAIL_USE_MAILLOCK) && defined (HAVE_TOUCHLOCK)
	    if (spool_name)
	      {
		time_t now = time (0);
		if (now - touched_lock > 60)
		  {
		    touchlock ();
		    touched_lock = now;
		  }
	      }
#endif /* MAIL_USE_MAILLOCK */
	  }
      }

#ifdef BSD_SYSTEM
      if (fsync (outdesc) < 0)
	pfatal_and_delete (outname);
#endif

      /* Prevent symlink attacks truncating other users' mailboxes */
      if (setregid (-1, real_gid) < 0)
	fatal ("Failed to drop privileges", 0, 0);

      /* Check to make sure no errors before we zap the inbox.  */
      if (close (outdesc) != 0)
	pfatal_and_delete (outname);

#ifdef MAIL_USE_SYSTEM_LOCK
      if (! preserve_mail)
	{
	  if (ftruncate (indesc, 0L) != 0)
	    pfatal_with_name (inname);
	}
#endif /* MAIL_USE_SYSTEM_LOCK */

#ifdef MAIL_USE_MMDF
      lk_close (indesc, 0, 0, 0);
#else
      close (indesc);
#endif

#ifndef MAIL_USE_SYSTEM_LOCK
      if (! preserve_mail)
	{
	  /* Delete the input file; if we can't, at least get rid of its
	     contents.  */
#ifdef MAIL_UNLINK_SPOOL
	  /* This is generally bad to do, because it destroys the permissions
	     that were set on the file.  Better to just empty the file.  */
	  if (unlink (inname) < 0 && errno != ENOENT)
#endif /* MAIL_UNLINK_SPOOL */
	    creat (inname, 0600);
	}
#endif /* not MAIL_USE_SYSTEM_LOCK */

      /* End of mailbox truncation */
      if (setregid (-1, priv_gid) < 0)
	fatal ("Failed to regain privileges", 0, 0);

#ifdef MAIL_USE_MAILLOCK
      /* This has to occur in the child, i.e., in the process that
         acquired the lock! */
      if (spool_name)
	mailunlock ();
#endif
      exit (EXIT_SUCCESS);
    }

  wait (&wait_status);
  if (!WIFEXITED (wait_status))
    exit (EXIT_FAILURE);
  else if (WEXITSTATUS (wait_status) != 0)
    exit (WEXITSTATUS (wait_status));

#if !defined (MAIL_USE_MMDF) && !defined (MAIL_USE_SYSTEM_LOCK)
#ifdef MAIL_USE_MAILLOCK
  if (! spool_name)
#endif /* MAIL_USE_MAILLOCK */
    unlink (lockname);
#endif /* not MAIL_USE_MMDF and not MAIL_USE_SYSTEM_LOCK */

#endif /* ! DISABLE_DIRECT_ACCESS */

  return EXIT_SUCCESS;
}
Example #9
0
static WIN32_FIND_DATA *
mswindows_get_files (char *dirfile, int nowild, Lisp_Object pattern,
		     int hide_dot, int hide_system, int *nfiles)
{
  WIN32_FIND_DATA		*files;
  int				array_size;
  struct re_pattern_buffer	*bufp = NULL;
  int				findex, len;
  char				win32pattern[MAXNAMLEN+3];
  HANDLE			fh;
  int				errm;

  /*
   * Much of the following code and comments were taken from dired.c.
   * Yes, this is something of a waste, but we want speed, speed, SPEED.
   */
  files = NULL;
  array_size = *nfiles = 0;
  while (1)
    {
      if (!NILP(pattern))
	{
	  /* PATTERN might be a flawed regular expression.  Rather than
	     catching and signalling our own errors, we just call
	     compile_pattern to do the work for us.  */
	  bufp = compile_pattern (pattern, 0, Qnil, 0, ERROR_ME);
	}
      /* Now *bufp is the compiled form of PATTERN; don't call anything
	 which might compile a new regexp until we're done with the loop! */

      /* Initialize file info array */
      array_size = 100;		/* initial size */
      files = xmalloc(array_size * sizeof (WIN32_FIND_DATA));

      /* for Win32, we need to insure that the pathname ends with "\*". */
      strcpy (win32pattern, dirfile);
      if (!nowild)
	{
	  len = strlen (win32pattern) - 1;
	  if (!IS_DIRECTORY_SEP (win32pattern[len]))
	    strcat (win32pattern, "\\");
	  strcat (win32pattern, "*");
	}

      /*
       * Here, we use FindFirstFile()/FindNextFile() instead of opendir(),
       * xemacs_stat(), & friends, because xemacs_stat() is VERY expensive in
       * terms of time.  Hence, we take the time to write complicated
       * Win32-specific code, instead of simple Unix-style stuff.
       */
      findex = 0;
      fh = INVALID_HANDLE_VALUE;
      errm = SetErrorMode (SEM_FAILCRITICALERRORS
			   | SEM_NOOPENFILEERRORBOX);

      while (1)
	{
	  int		len;
	  char	*filename;
	  int		result;

	  if (fh == INVALID_HANDLE_VALUE)
	    {
	      fh = FindFirstFile(win32pattern, &files[findex]);
	      if (fh == INVALID_HANDLE_VALUE)
		{
		  SetErrorMode (errm);
		  report_file_error ("Opening directory",
				     list1(build_string(dirfile)));
		}
	    }
	  else
	    {
	      if (!FindNextFile(fh, &files[findex]))
		{
		  if (GetLastError() == ERROR_NO_MORE_FILES)
		    {
		      break;
		    }
		  FindClose(fh);
		  SetErrorMode (errm);
		  report_file_error ("Reading directory",
				     list1(build_string(dirfile)));
		}
	    }

	  filename = files[findex].cFileName;
	  if (!NILP(Vmswindows_downcase_file_names))
	  {
	      strlwr(filename);
	  }
	  len = strlen(filename);
	  result = (NILP(pattern)
		    || (0 <= re_search (bufp, filename, 
					len, 0, len, 0)));
	  if (result)
	    {
	      if ( ! (filename[0] == '.' &&
		      ((hide_system && (filename[1] == '\0' ||
					(filename[1] == '.' &&
					 filename[2] == '\0'))) ||
		       hide_dot)))
		{
		  if (++findex >= array_size)
		    {
		      array_size = findex * 2;
		      files = xrealloc(files,
				       array_size * sizeof(WIN32_FIND_DATA));
		    }
		}
	    }
	}
      if (fh != INVALID_HANDLE_VALUE)
	{
	  FindClose (fh);
	}
      *nfiles = findex;
      break;
    }

  SetErrorMode (errm);
  return (files);
}