Dogcows Code - chaz/tar/blob - src/warning.c

   1 /* This file is part of GNU tar.
   2
   3    Copyright (C) 2009 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify it
   6    under the terms of the GNU General Public License as published by the
   7    Free Software Foundation; either version 3, or (at your option) any later
   8    version.
   9
  10    This program is distributed in the hope that it will be useful, but
  11    WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
  13    Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License along
  16    with this program.  If not, see <http://www.gnu.org/licenses/>. */
  17
  18 #include <system.h>
  19 #include <argmatch.h>
  20
  21 #include "common.h"
  22
  23 static char const *const warning_args[] = {
  24   "all",
  25   "alone-zero-block",
  26   "bad-dumpdir",
  27   "cachedir",
  28   "contiguous-cast",
  29   "file-changed",
  30   "file-ignored",
  31   "file-removed",
  32   "file-shrank",
  33   "file-unchanged",
  34   "filename-with-nuls",
  35   "ignore-archive",
  36   "ignore-newer",
  37   "new-directory",
  38   "rename-directory",
  39   "symlink-cast",
  40   "timestamp",
  41   "unknown-cast",
  42   "unknown-keyword",
  43   "xdev",
  44   "decompress-program",
  45   NULL
  46 };
  47
  48 static int warning_types[] = {
  49   WARN_ALL,
  50   WARN_ALONE_ZERO_BLOCK,
  51   WARN_BAD_DUMPDIR,
  52   WARN_CACHEDIR,
  53   WARN_CONTIGUOUS_CAST,
  54   WARN_FILE_CHANGED,
  55   WARN_FILE_IGNORED,
  56   WARN_FILE_REMOVED,
  57   WARN_FILE_SHRANK,
  58   WARN_FILE_UNCHANGED,
  59   WARN_FILENAME_WITH_NULS,
  60   WARN_IGNORE_ARCHIVE,
  61   WARN_IGNORE_NEWER,
  62   WARN_NEW_DIRECTORY,
  63   WARN_RENAME_DIRECTORY,
  64   WARN_SYMLINK_CAST,
  65   WARN_TIMESTAMP,
  66   WARN_UNKNOWN_CAST,
  67   WARN_UNKNOWN_KEYWORD,
  68   WARN_XDEV,
  69   WARN_DECOMPRESS_PROGRAM
  70 };
  71
  72 ARGMATCH_VERIFY (warning_args, warning_types);
  73
  74 int warning_option = WARN_ALL;
  75
  76 void
  77 set_warning_option (const char *arg)
  78 {
  79   int negate = 0;
  80   int option;
  81
  82   if (strcmp (arg, "none") == 0)
  83     {
  84       warning_option = 0;
  85       return;
  86     }
  87   if (strlen (arg) > 2 && memcmp (arg, "no-", 3) == 0)
  88     {
  89       negate = 1;
  90       arg += 3;
  91     }
  92
  93   option = XARGMATCH ("--warning", arg,
  94                       warning_args, warning_types);
  95   if (negate)
  96     warning_option &= ~option;
  97   else
  98     warning_option |= option;
  99 }