forked from Imagelibrary/rtems
2008-07-29 Chris Johns <chrisj@rtems.org>
* libblock/Makefile.am: Removed src/show_bdbuf.c. * libblock/src/show_bdbuf.c: Removed. * libblock/include/rtems/bdbuf.h, cpukit/libblock/src/bdbuf.c: Rewritten the bdbuf code. Remove pre-emption disable, score access, fixed many bugs and increased performance. * libblock/include/rtems/blkdev.h: Added RTEMS_BLKDEV_CAPABILITIES block device request. Cleaned up comments. Added block and user fields to the sg buffer request. Move to rtems_* namespace. * libblock/include/rtems/diskdevs.h, cpukit/libblock/src/diskdevs.c: Move to rtems_* namespace. Add a capabilities field for drivers. Change rtems_disk_lookup to rtems_disk_obtain to match the release call. You do not lookup and release a disk, you obtain and release a disk. * libblock/include/rtems/ide_part_table.h, libblock/include/rtems/ramdisk.h, libblock/src/ide_part_table.c: Move to rtems_* namespace. * libblock/include/rtems/nvdisk.h: Formatting change. * libblock/src/blkdev.c: Move to rtems_* namespace. Change rtems_disk_lookup to rtems_disk_obtain * libblock/src/flashdisk.c: Move to rtems_* namespace. Use the new support for the block number in the scatter/grather request struct. This allows non-continuous buffer requests for those drivers that can support increasing performance. * libblock/src/nvdisk.c: Move to rtems_* namespace. Removed warnings. Added better error checking. Fixed some comments. * libblock/src/ramdisk.c: Move to rtems_* namespace. Added some trace functions to help debugging upper layers. Use the new support for the block number in the scatter/grather request struct. This allows non-continuous buffer requests for those drivers that can support increasing performance. * libfs/src/dosfs/fat.c, libfs/src/dosfs/fat.h: Use new chains API. Removed temporary hack and changed set_errno_and_return_minus_one to rtems_set_errno_and_return_minus_one. Move fat_buf_access from header and stopped it being inlined. Updated to libblock changes. * libfs/src/dosfs/fat_fat_operations.c, libfs/src/dosfs/fat_file.c, libfs/src/dosfs/msdos_create.c, libfs/src/dosfs/msdos_dir.c, libfs/src/dosfs/msdos_eval.c, libfs/src/dosfs/msdos_file.c, libfs/src/dosfs/msdos_format.c, libfs/src/dosfs/msdos_free.c, libfs/src/dosfs/msdos_initsupp.c, libfs/src/dosfs/msdos_misc.c, libfs/src/dosfs/msdos_mknod.c: Use new chains API. Removed temporary hack and changed set_errno_and_return_minus_one to rtems_set_errno_and_return_minus_one. Updated to libblock changes. * libmisc/Makefile.am: Add new ls and rm command files. * libmisc/shell/cmp-ls.c, libmisc/shell/extern-ls.h, libmisc/shell/filemode.c, libmisc/shell/print-ls.c, libmisc/shell/pwcache.c, libmisc/shell/utils-ls.c, libmisc/shell/vis.c, shell/vis.h: New. * libmisc/shell/extern-cp.h, libmisc/shell/main_cp.c, libmisc/shell/utils-cp.c: Fixed the usage call bug. * libmisc/shell/main_blksync.c: Updated to the new block IO ioctl command. * libmisc/shell/main_ls.c, libmisc/shell/main_rm.c: Updated to BSD commands with more features. * score/src/coremutex.c: Fix the strick order mutex code. * libmisc/shell/shell.c: Change shell tasks mode to be timeslice and no ASR. * sapi/include/confdefs.h: Change ata_driver_task_priority to rtems_ata_driver_task_priority. Add the new BD buf cache parameters with defaults. * score/src/interr.c: Do not return if the CPU halt call returns.
This commit is contained in:
Chris Johns
@@ -1,50 +1,699 @@
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/*
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* RM Shell Command Implmentation
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/*-
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* Copyright (c) 1990, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Author: Fernando RUIZ CASAS
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* Work: fernando.ruiz@ctv.es
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* Home: correo@fernando-ruiz.com
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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||||
* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#if 0
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1990, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#ifndef lint
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static char sccsid[] = "@(#)rm.c 8.5 (Berkeley) 4/18/94";
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#endif /* not lint */
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#endif
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#if 0
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD: src/bin/rm/rm.c,v 1.58 2006/10/31 02:22:36 delphij Exp $");
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#endif
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#include <rtems.h>
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#include <rtems/shell.h>
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#include "internal.h"
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#include <rtems/shellconfig.h>
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#include <getopt.h>
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int rtems_shell_main_rm(
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int argc,
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char *argv[]
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)
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#include <sys/stat.h>
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <fts.h>
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#include <grp.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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/* RTEMS specific changes */
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typedef struct {
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int dflag, eval, fflag, iflag, Pflag, vflag, Wflag, stdin_ok;
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int rflag, Iflag;
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uid_t uid;
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int exit_code;
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jmp_buf exit_jmp;
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} rtems_shell_rm_globals;
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#define dflag globals->dflag
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#define eval globals->eval
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#define fflag globals->fflag
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#define iflag globals->iflag
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#define Pflag globals->Pflag
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#define vflag globals->vflag
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#define Wflag globals->Wflag
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#define stdin_ok globals->stdin_ok
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#define rflag globals->rflag
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#define Iflag globals->Iflag
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#define xuid globals->uid
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#define exit_jump &(globals->exit_jmp)
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#include <setjmp.h>
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#define exit(ec) rtems_shell_rm_exit(globals, ec)
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void
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rtems_shell_rm_exit (rtems_shell_rm_globals* globals, int code)
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{
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int n = 1;
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globals->exit_code = code;
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longjmp (globals->exit_jmp, 1);
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}
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while ( n<argc ) {
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if (unlink(argv[n])) {
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fprintf(stderr,"%s: %s: %s\n", argv[0], argv[n], strerror(errno));
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return -1;
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}
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n++;
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}
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return 0;
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static int main_rm(rtems_shell_rm_globals* globals, int argc, char *argv[]);
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int
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rtems_shell_main_rm(int argc, char *argv[])
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{
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rtems_shell_rm_globals rm_globals;
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memset (&rm_globals, 0, sizeof (rm_globals));
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rm_globals.exit_code = 1;
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if (setjmp (rm_globals.exit_jmp) == 0)
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return main_rm (&rm_globals, argc, argv);
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return rm_globals.exit_code;
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}
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#define check(a1, a2, a3) check_rm(globals, a1, a2, a3)
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#define check2(a1) check2_rm(globals, a1)
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#define checkdot(a1) checkdot_rm(globals, a1)
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#define checkslash(a1) checkslash_rm(globals, a1)
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#define rm_file(a1) rm_file_rm(globals, a1)
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#define rm_overwrite(a1, a2) rm_overwrite_rm(globals, a1, a2)
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#define rm_tree(a1) rm_tree_rm(globals, a1)
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#define usage() usage_rm(globals)
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/* RTEMS changes */
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static int check_rm(rtems_shell_rm_globals* globals, char *, char *, struct stat *);
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static int check2_rm(rtems_shell_rm_globals* globals, char **);
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static void checkdot_rm(rtems_shell_rm_globals* globals, char **);
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static void checkslash_rm(rtems_shell_rm_globals* globals, char **);
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static void rm_file_rm(rtems_shell_rm_globals* globals, char **);
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static int rm_overwrite_rm(rtems_shell_rm_globals* globals, char *, struct stat *);
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static void rm_tree_rm(rtems_shell_rm_globals* globals, char **);
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static void usage_rm(rtems_shell_rm_globals* globals);
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/*
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* rm --
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* This rm is different from historic rm's, but is expected to match
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* POSIX 1003.2 behavior. The most visible difference is that -f
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* has two specific effects now, ignore non-existent files and force
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* file removal.
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*/
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int
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main_rm(rtems_shell_rm_globals* globals, int argc, char *argv[])
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{
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int ch;
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char *p;
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struct getopt_data getopt_reent;
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memset(&getopt_reent, 0, sizeof(getopt_data));
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/*
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* Test for the special case where the utility is called as
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* "unlink", for which the functionality provided is greatly
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* simplified.
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*/
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if ((p = rindex(argv[0], '/')) == NULL)
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p = argv[0];
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else
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++p;
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if (strcmp(p, "unlink") == 0) {
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while (getopt_r(argc, argv, "", &getopt_reent) != -1)
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usage();
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argc -= getopt_reent.optind;
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argv += getopt_reent.optind;
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if (argc != 1)
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usage();
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rm_file(&argv[0]);
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exit(eval);
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}
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Pflag = rflag = 0;
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while ((ch = getopt_r(argc, argv, "dfiIPRrvW", &getopt_reent)) != -1)
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switch(ch) {
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case 'd':
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dflag = 1;
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break;
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case 'f':
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fflag = 1;
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iflag = 0;
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break;
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case 'i':
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fflag = 0;
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iflag = 1;
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break;
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case 'I':
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Iflag = 1;
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break;
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case 'P':
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Pflag = 1;
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break;
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case 'R':
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case 'r': /* Compatibility. */
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rflag = 1;
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break;
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case 'v':
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vflag = 1;
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break;
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case 'W':
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Wflag = 1;
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break;
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default:
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usage();
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}
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argc -= getopt_reent.optind;
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argv += getopt_reent.optind;
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if (argc < 1) {
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if (fflag)
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return (0);
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usage();
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}
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checkdot(argv);
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if (getenv("POSIXLY_CORRECT") == NULL)
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checkslash(argv);
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xuid = geteuid();
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if (*argv) {
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stdin_ok = isatty(STDIN_FILENO);
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if (Iflag) {
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if (check2(argv) == 0)
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exit (1);
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}
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if (rflag)
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rm_tree(argv);
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else
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rm_file(argv);
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}
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exit (eval);
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return 0;
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}
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void
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rm_tree_rm(rtems_shell_rm_globals* globals, char **argv)
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{
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FTS *fts;
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FTSENT *p;
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int needstat;
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int flags;
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int rval;
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/*
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* Remove a file hierarchy. If forcing removal (-f), or interactive
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* (-i) or can't ask anyway (stdin_ok), don't stat the file.
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*/
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needstat = !xuid || (!fflag && !iflag && stdin_ok);
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/*
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* If the -i option is specified, the user can skip on the pre-order
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* visit. The fts_number field flags skipped directories.
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*/
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#define SKIPPED 1
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flags = FTS_PHYSICAL;
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if (!needstat)
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flags |= FTS_NOSTAT;
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if (Wflag)
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flags |= FTS_WHITEOUT;
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if (!(fts = fts_open(argv, flags, NULL))) {
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if (fflag && errno == ENOENT)
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return;
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err(exit_jump, 1, "fts_open");
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}
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while ((p = fts_read(fts)) != NULL) {
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switch (p->fts_info) {
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case FTS_DNR:
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if (!fflag || p->fts_errno != ENOENT) {
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warnx("%s: %s",
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p->fts_path, strerror(p->fts_errno));
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eval = 1;
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}
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continue;
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case FTS_ERR:
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errx(exit_jump, 1, "%s: %s", p->fts_path, strerror(p->fts_errno));
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case FTS_NS:
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/*
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* Assume that since fts_read() couldn't stat the
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* file, it can't be unlinked.
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*/
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if (!needstat)
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break;
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if (!fflag || p->fts_errno != ENOENT) {
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warnx("%s: %s",
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p->fts_path, strerror(p->fts_errno));
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eval = 1;
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}
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continue;
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case FTS_D:
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/* Pre-order: give user chance to skip. */
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if (!fflag && !check(p->fts_path, p->fts_accpath,
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p->fts_statp)) {
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(void)fts_set(fts, p, FTS_SKIP);
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p->fts_number = SKIPPED;
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}
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#if RTEMS_REMOVED
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else if (!xuid &&
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(p->fts_statp->st_flags & (UF_APPEND|UF_IMMUTABLE)) &&
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!(p->fts_statp->st_flags & (SF_APPEND|SF_IMMUTABLE)) &&
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chflags(p->fts_accpath,
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p->fts_statp->st_flags &= ~(UF_APPEND|UF_IMMUTABLE)) < 0)
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goto err;
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#endif
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||||
continue;
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||||
case FTS_DP:
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||||
/* Post-order: see if user skipped. */
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if (p->fts_number == SKIPPED)
|
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continue;
|
||||
break;
|
||||
default:
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||||
if (!fflag &&
|
||||
!check(p->fts_path, p->fts_accpath, p->fts_statp))
|
||||
continue;
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||||
}
|
||||
|
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rval = 0;
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||||
#if RTEMS_REMOVED
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if (!xuid &&
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(p->fts_statp->st_flags & (UF_APPEND|UF_IMMUTABLE)) &&
|
||||
!(p->fts_statp->st_flags & (SF_APPEND|SF_IMMUTABLE)))
|
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rval = chflags(p->fts_accpath,
|
||||
p->fts_statp->st_flags &= ~(UF_APPEND|UF_IMMUTABLE));
|
||||
#endif
|
||||
if (rval == 0) {
|
||||
/*
|
||||
* If we can't read or search the directory, may still be
|
||||
* able to remove it. Don't print out the un{read,search}able
|
||||
* message unless the remove fails.
|
||||
*/
|
||||
switch (p->fts_info) {
|
||||
case FTS_DP:
|
||||
case FTS_DNR:
|
||||
rval = rmdir(p->fts_accpath);
|
||||
if (rval == 0 || (fflag && errno == ENOENT)) {
|
||||
if (rval == 0 && vflag)
|
||||
(void)printf("%s\n",
|
||||
p->fts_path);
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
|
||||
#if RTEMS_REMOVED
|
||||
case FTS_W:
|
||||
rval = undelete(p->fts_accpath);
|
||||
if (rval == 0 && (fflag && errno == ENOENT)) {
|
||||
if (vflag)
|
||||
(void)printf("%s\n",
|
||||
p->fts_path);
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
#endif
|
||||
|
||||
case FTS_NS:
|
||||
/*
|
||||
* Assume that since fts_read() couldn't stat
|
||||
* the file, it can't be unlinked.
|
||||
*/
|
||||
if (fflag)
|
||||
continue;
|
||||
/* FALLTHROUGH */
|
||||
default:
|
||||
if (Pflag)
|
||||
if (!rm_overwrite(p->fts_accpath, NULL))
|
||||
continue;
|
||||
rval = unlink(p->fts_accpath);
|
||||
if (rval == 0 || (fflag && errno == ENOENT)) {
|
||||
if (rval == 0 && vflag)
|
||||
(void)printf("%s\n",
|
||||
p->fts_path);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
}
|
||||
#if RTEMS_REMOVED
|
||||
err:
|
||||
#endif
|
||||
warn("%s", p->fts_path);
|
||||
eval = 1;
|
||||
}
|
||||
if (errno)
|
||||
err(exit_jump, 1, "fts_read");
|
||||
fts_close(fts);
|
||||
}
|
||||
|
||||
#define S_ISWHT(m) (0)
|
||||
|
||||
void
|
||||
rm_file_rm(rtems_shell_rm_globals* globals, char **argv)
|
||||
{
|
||||
struct stat sb;
|
||||
int rval;
|
||||
char *f;
|
||||
|
||||
/*
|
||||
* Remove a file. POSIX 1003.2 states that, by default, attempting
|
||||
* to remove a directory is an error, so must always stat the file.
|
||||
*/
|
||||
while ((f = *argv++) != NULL) {
|
||||
/* Assume if can't stat the file, can't unlink it. */
|
||||
if (lstat(f, &sb)) {
|
||||
#if RTEMS_REMOVED
|
||||
if (Wflag) {
|
||||
sb.st_mode = S_IFWHT|S_IWUSR|S_IRUSR;
|
||||
} else {
|
||||
#endif
|
||||
if (!fflag || errno != ENOENT) {
|
||||
warn("%s", f);
|
||||
eval = 1;
|
||||
}
|
||||
continue;
|
||||
#if RTEMS_REMOVED
|
||||
}
|
||||
#endif
|
||||
} else if (Wflag) {
|
||||
warnx("%s: %s", f, strerror(EEXIST));
|
||||
eval = 1;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (S_ISDIR(sb.st_mode) && !dflag) {
|
||||
warnx("%s: is a directory", f);
|
||||
eval = 1;
|
||||
continue;
|
||||
}
|
||||
if (!fflag && !S_ISWHT(sb.st_mode) && !check(f, f, &sb))
|
||||
continue;
|
||||
rval = 0;
|
||||
#if RTEMS_REMOVED
|
||||
if (!xuid && !S_ISWHT(sb.st_mode) &&
|
||||
(sb.st_flags & (UF_APPEND|UF_IMMUTABLE)) &&
|
||||
!(sb.st_flags & (SF_APPEND|SF_IMMUTABLE)))
|
||||
rval = chflags(f, sb.st_flags & ~(UF_APPEND|UF_IMMUTABLE));
|
||||
#endif
|
||||
if (rval == 0) {
|
||||
if (S_ISWHT(sb.st_mode))
|
||||
#if RTEMS_REMOVED
|
||||
rval = undelete(f);
|
||||
#endif
|
||||
;
|
||||
else if (S_ISDIR(sb.st_mode))
|
||||
rval = rmdir(f);
|
||||
else {
|
||||
if (Pflag)
|
||||
if (!rm_overwrite(f, &sb))
|
||||
continue;
|
||||
rval = unlink(f);
|
||||
}
|
||||
}
|
||||
if (rval && (!fflag || errno != ENOENT)) {
|
||||
warn("%s", f);
|
||||
eval = 1;
|
||||
}
|
||||
if (vflag && rval == 0)
|
||||
(void)printf("%s\n", f);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* rm_overwrite --
|
||||
* Overwrite the file 3 times with varying bit patterns.
|
||||
*
|
||||
* XXX
|
||||
* This is a cheap way to *really* delete files. Note that only regular
|
||||
* files are deleted, directories (and therefore names) will remain.
|
||||
* Also, this assumes a fixed-block file system (like FFS, or a V7 or a
|
||||
* System V file system). In a logging file system, you'll have to have
|
||||
* kernel support.
|
||||
*/
|
||||
int
|
||||
rm_overwrite_rm(rtems_shell_rm_globals* globals, char *file, struct stat *sbp)
|
||||
{
|
||||
struct stat sb;
|
||||
#if RTEMS_REMOVED
|
||||
struct statfs fsb;
|
||||
#endif
|
||||
off_t len;
|
||||
int bsize, fd, wlen;
|
||||
char *buf = NULL;
|
||||
|
||||
fd = -1;
|
||||
if (sbp == NULL) {
|
||||
if (lstat(file, &sb))
|
||||
goto err;
|
||||
sbp = &sb;
|
||||
}
|
||||
if (!S_ISREG(sbp->st_mode))
|
||||
return (1);
|
||||
if (sbp->st_nlink > 1 && !fflag) {
|
||||
warnx("%s (inode %lu): not overwritten due to multiple links",
|
||||
file, sbp->st_ino);
|
||||
return (0);
|
||||
}
|
||||
if ((fd = open(file, O_WRONLY, 0)) == -1)
|
||||
goto err;
|
||||
#if RTEMS_REMOVED
|
||||
if (fstatfs(fd, &fsb) == -1)
|
||||
goto err;
|
||||
bsize = MAX(fsb.f_iosize, 1024);
|
||||
#endif
|
||||
bsize = 1024;
|
||||
if ((buf = malloc(bsize)) == NULL)
|
||||
err(exit_jump, 1, "%s: malloc", file);
|
||||
|
||||
#define PASS(byte) { \
|
||||
memset(buf, byte, bsize); \
|
||||
for (len = sbp->st_size; len > 0; len -= wlen) { \
|
||||
wlen = len < bsize ? len : bsize; \
|
||||
if (write(fd, buf, wlen) != wlen) \
|
||||
goto err; \
|
||||
} \
|
||||
}
|
||||
PASS(0xff);
|
||||
if (fsync(fd) || lseek(fd, (off_t)0, SEEK_SET))
|
||||
goto err;
|
||||
PASS(0x00);
|
||||
if (fsync(fd) || lseek(fd, (off_t)0, SEEK_SET))
|
||||
goto err;
|
||||
PASS(0xff);
|
||||
if (!fsync(fd) && !close(fd)) {
|
||||
free(buf);
|
||||
return (1);
|
||||
}
|
||||
|
||||
err: eval = 1;
|
||||
if (buf)
|
||||
free(buf);
|
||||
if (fd != -1)
|
||||
close(fd);
|
||||
warn("%s", file);
|
||||
return (0);
|
||||
}
|
||||
|
||||
void strmode(mode_t mode, char *p);
|
||||
char *fflagstostr(u_long flags);
|
||||
const char *user_from_uid(uid_t uid, int nouser);
|
||||
|
||||
int
|
||||
check_rm(rtems_shell_rm_globals* globals, char *path, char *name, struct stat *sp)
|
||||
{
|
||||
int ch, first;
|
||||
char modep[15], *flagsp;
|
||||
|
||||
/* Check -i first. */
|
||||
if (iflag)
|
||||
(void)fprintf(stderr, "remove %s? ", path);
|
||||
else {
|
||||
/*
|
||||
* If it's not a symbolic link and it's unwritable and we're
|
||||
* talking to a terminal, ask. Symbolic links are excluded
|
||||
* because their permissions are meaningless. Check stdin_ok
|
||||
* first because we may not have stat'ed the file.
|
||||
*/
|
||||
#if RTEMS_REMOVED
|
||||
if (!stdin_ok || S_ISLNK(sp->st_mode) ||
|
||||
(!access(name, W_OK) &&
|
||||
!(sp->st_flags & (SF_APPEND|SF_IMMUTABLE)) &&
|
||||
(!(sp->st_flags & (UF_APPEND|UF_IMMUTABLE)) || !xuid)))
|
||||
#endif
|
||||
if (!stdin_ok || S_ISLNK(sp->st_mode) ||
|
||||
(!access(name, W_OK)))
|
||||
return (1);
|
||||
strmode(sp->st_mode, modep);
|
||||
#if RTEMS_REMOVED
|
||||
if ((flagsp = fflagstostr(sp->st_flags)) == NULL)
|
||||
err(exit_jump, 1, "fflagstostr");
|
||||
#else
|
||||
flagsp = "no supported";
|
||||
#endif
|
||||
if (Pflag)
|
||||
errx(exit_jump, 1,
|
||||
"%s: -P was specified, but file is not writable",
|
||||
path);
|
||||
(void)fprintf(stderr, "override %s%s%s/%s %s%sfor %s? ",
|
||||
modep + 1, modep[9] == ' ' ? "" : " ",
|
||||
user_from_uid(sp->st_uid, 0),
|
||||
group_from_gid(sp->st_gid, 0),
|
||||
*flagsp ? flagsp : "", *flagsp ? " " : "",
|
||||
path);
|
||||
free(flagsp);
|
||||
}
|
||||
(void)fflush(stderr);
|
||||
|
||||
first = ch = getchar();
|
||||
while (ch != '\n' && ch != EOF)
|
||||
ch = getchar();
|
||||
return (first == 'y' || first == 'Y');
|
||||
}
|
||||
|
||||
#define ISSLASH(a) ((a)[0] == '/' && (a)[1] == '\0')
|
||||
void
|
||||
checkslash_rm(rtems_shell_rm_globals* globals, char **argv)
|
||||
{
|
||||
char **t, **u;
|
||||
int complained;
|
||||
|
||||
complained = 0;
|
||||
for (t = argv; *t;) {
|
||||
if (ISSLASH(*t)) {
|
||||
if (!complained++)
|
||||
warnx("\"/\" may not be removed");
|
||||
eval = 1;
|
||||
for (u = t; u[0] != NULL; ++u)
|
||||
u[0] = u[1];
|
||||
} else {
|
||||
++t;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
check2_rm(rtems_shell_rm_globals* globals, char **argv)
|
||||
{
|
||||
struct stat st;
|
||||
int first;
|
||||
int ch;
|
||||
int fcount = 0;
|
||||
int dcount = 0;
|
||||
int i;
|
||||
const char *dname = NULL;
|
||||
|
||||
for (i = 0; argv[i]; ++i) {
|
||||
if (lstat(argv[i], &st) == 0) {
|
||||
if (S_ISDIR(st.st_mode)) {
|
||||
++dcount;
|
||||
dname = argv[i]; /* only used if 1 dir */
|
||||
} else {
|
||||
++fcount;
|
||||
}
|
||||
}
|
||||
}
|
||||
first = 0;
|
||||
while (first != 'n' && first != 'N' && first != 'y' && first != 'Y') {
|
||||
if (dcount && rflag) {
|
||||
fprintf(stderr, "recursively remove");
|
||||
if (dcount == 1)
|
||||
fprintf(stderr, " %s", dname);
|
||||
else
|
||||
fprintf(stderr, " %d dirs", dcount);
|
||||
if (fcount == 1)
|
||||
fprintf(stderr, " and 1 file");
|
||||
else if (fcount > 1)
|
||||
fprintf(stderr, " and %d files", fcount);
|
||||
} else if (dcount + fcount > 3) {
|
||||
fprintf(stderr, "remove %d files", dcount + fcount);
|
||||
} else {
|
||||
return(1);
|
||||
}
|
||||
fprintf(stderr, "? ");
|
||||
fflush(stderr);
|
||||
|
||||
first = ch = getchar();
|
||||
while (ch != '\n' && ch != EOF)
|
||||
ch = getchar();
|
||||
if (ch == EOF)
|
||||
break;
|
||||
}
|
||||
return (first == 'y' || first == 'Y');
|
||||
}
|
||||
|
||||
#define ISDOT(a) ((a)[0] == '.' && (!(a)[1] || ((a)[1] == '.' && !(a)[2])))
|
||||
void
|
||||
checkdot_rm(rtems_shell_rm_globals* globals, char **argv)
|
||||
{
|
||||
char *p, **save, **t;
|
||||
int complained;
|
||||
|
||||
complained = 0;
|
||||
for (t = argv; *t;) {
|
||||
if ((p = strrchr(*t, '/')) != NULL)
|
||||
++p;
|
||||
else
|
||||
p = *t;
|
||||
if (ISDOT(p)) {
|
||||
if (!complained++)
|
||||
warnx("\".\" and \"..\" may not be removed");
|
||||
eval = 1;
|
||||
for (save = t; (t[0] = t[1]) != NULL; ++t)
|
||||
continue;
|
||||
t = save;
|
||||
} else
|
||||
++t;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
usage_rm(rtems_shell_rm_globals* globals)
|
||||
{
|
||||
|
||||
(void)fprintf(stderr, "%s\n%s\n",
|
||||
"usage: rm [-f | -i] [-dIPRrvW] file ...",
|
||||
" unlink file");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
rtems_shell_cmd_t rtems_shell_RM_Command = {
|
||||
"rm", /* name */
|
||||
"rm n1 [n2 [n3...]] # remove files", /* usage */
|
||||
"[-f | -i] [-dIPRrvW] file ...", /* usage */
|
||||
"files", /* topic */
|
||||
rtems_shell_main_rm, /* command */
|
||||
NULL, /* alias */
|
||||
|
||||
Reference in New Issue
Block a user