SQUASHFS/squashfs-tools-4.4/squashfs-tools/error.h

   1 #ifndef ERROR_H
   2 #define ERROR_H
   3 /*
   4  * Create a squashfs filesystem.  This is a highly compressed read only
   5  * filesystem.
   6  *
   7  * Copyright (c) 2012, 2013, 2014, 2019
   8  * Phillip Lougher <phillip@squashfs.org.uk>
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2,
  13  * or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  *
  24  * error.h
  25  */
  26
  27 extern int exit_on_error;
  28
  29 extern void prep_exit();
  30 extern void progressbar_error(char *fmt, ...);
  31 extern void progressbar_info(char *fmt, ...);
  32
  33 #ifdef SQUASHFS_TRACE
  34 #define TRACE(s, args...) \
  35                 do { \
  36                         progressbar_info("squashfs: "s, ## args);\
  37                 } while(0)
  38 #else
  39 #define TRACE(s, args...)
  40 #endif
  41
  42 #define INFO(s, args...) \
  43                 do {\
  44                          if(!silent)\
  45                                 progressbar_info(s, ## args);\
  46                 } while(0)
  47
  48 #define ERROR(s, args...) \
  49                 do {\
  50                         progressbar_error(s, ## args); \
  51                 } while(0)
  52
  53 #define ERROR_START(s, args...) \
  54                 do { \
  55                         disable_progress_bar(); \
  56                         fprintf(stderr, s, ## args); \
  57                 } while(0)
  58
  59 #define ERROR_EXIT(s, args...) \
  60                 do {\
  61                         if (exit_on_error) { \
  62                                 fprintf(stderr, "\n"); \
  63                                 EXIT_MKSQUASHFS(); \
  64                         } else { \
  65                                 fprintf(stderr, s, ## args); \
  66                                 enable_progress_bar(); \
  67                         } \
  68                 } while(0)
  69
  70 #define EXIT_MKSQUASHFS() \
  71                 do {\
  72                         prep_exit();\
  73                         exit(1);\
  74                 } while(0)
  75
  76 #define BAD_ERROR(s, args...) \
  77                 do {\
  78                         progressbar_error("FATAL ERROR:" s, ##args); \
  79                         EXIT_MKSQUASHFS();\
  80                 } while(0)
  81
  82 #define EXIT_UNSQUASH(s, args...) BAD_ERROR(s, ##args)
  83
  84 #define EXIT_UNSQUASH_IGNORE(s, args...) \
  85         do {\
  86                 if(ignore_errors) \
  87                         ERROR(s, ##args); \
  88                 else \
  89                         BAD_ERROR(s, ##args); \
  90         } while(0)
  91
  92 #define EXIT_UNSQUASH_STRICT(s, args...) \
  93         do {\
  94                 if(!strict_errors) \
  95                         ERROR(s, ##args); \
  96                 else \
  97                         BAD_ERROR(s, ##args); \
  98         } while(0)
  99
 100 #define MEM_ERROR() \
 101         do {\
 102                 progressbar_error("FATAL ERROR: Out of memory (%s)\n", \
 103                                                                 __func__); \
 104                 EXIT_MKSQUASHFS();\
 105         } while(0)
 106 #endif