root/ext/zip/lib/zip_error.c

DEFINITIONS

1. zip_error_code_system
2. zip_error_code_zip
3. zip_error_fini
4. zip_error_init
5. zip_error_init_with_code
6. zip_error_system_type
7. _zip_error_clear
8. _zip_error_copy
9. _zip_error_get
10. zip_error_set
11. _zip_error_set_from_source
12. zip_error_to_data

   1 /*
   2   zip_error.c -- zip_error_t helper functions
   3   Copyright (C) 1999-2015 Dieter Baron and Thomas Klausner
   4 
   5   This file is part of libzip, a library to manipulate ZIP archives.
   6   The authors can be contacted at <libzip@nih.at>
   7 
   8   Redistribution and use in source and binary forms, with or without
   9   modification, are permitted provided that the following conditions
  10   are met:
  11   1. Redistributions of source code must retain the above copyright
  12      notice, this list of conditions and the following disclaimer.
  13   2. Redistributions in binary form must reproduce the above copyright
  14      notice, this list of conditions and the following disclaimer in
  15      the documentation and/or other materials provided with the
  16      distribution.
  17   3. The names of the authors may not be used to endorse or promote
  18      products derived from this software without specific prior
  19      written permission.
  20  
  21   THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
  22   OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  23   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24   ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
  25   DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  27   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  28   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  29   IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  30   OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  31   IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32 */
  33 
  34 #include <stdlib.h>
  35 
  36 #include "zipint.h"
  37 
  38 
  39 ZIP_EXTERN int
  40 zip_error_code_system(const zip_error_t *error) {
  41     return error->sys_err;
  42 }
  43 
  44 
  45 ZIP_EXTERN int
  46 zip_error_code_zip(const zip_error_t *error) {
  47     return error->zip_err;
  48 }
  49 
  50 
  51 ZIP_EXTERN void
  52 zip_error_fini(zip_error_t *err)
  53 {
  54     free(err->str);
  55     err->str = NULL;
  56 }
  57 
  58 
  59 ZIP_EXTERN void
  60 zip_error_init(zip_error_t *err)
  61 {
  62     err->zip_err = ZIP_ER_OK;
  63     err->sys_err = 0;
  64     err->str = NULL;
  65 }
  66 
  67 ZIP_EXTERN void
  68 zip_error_init_with_code(zip_error_t *error, int ze)
  69 {
  70     zip_error_init(error);
  71     error->zip_err = ze;
  72     switch (zip_error_system_type(error)) {
  73     case ZIP_ET_SYS:
  74         error->sys_err = errno;
  75         break;
  76 
  77     default:
  78         error->sys_err = 0;
  79         break;
  80     }   
  81 }
  82 
  83 
  84 ZIP_EXTERN int
  85 zip_error_system_type(const zip_error_t *error) {
  86     if (error->zip_err < 0 || error->zip_err >= _zip_nerr_str)
  87         return ZIP_ET_NONE;
  88     
  89     return _zip_err_type[error->zip_err];
  90 }
  91 
  92 
  93 void
  94 _zip_error_clear(zip_error_t *err)
  95 {
  96     if (err == NULL)
  97         return;
  98 
  99     err->zip_err = ZIP_ER_OK;
 100     err->sys_err = 0;
 101 }
 102 
 103 
 104 void
 105 _zip_error_copy(zip_error_t *dst, const zip_error_t *src)
 106 {
 107     dst->zip_err = src->zip_err;
 108     dst->sys_err = src->sys_err;
 109 }
 110 
 111 
 112 void
 113 _zip_error_get(const zip_error_t *err, int *zep, int *sep)
 114 {
 115     if (zep)
 116         *zep = err->zip_err;
 117     if (sep) {
 118         if (zip_error_system_type(err) != ZIP_ET_NONE)
 119             *sep = err->sys_err;
 120         else
 121             *sep = 0;
 122     }
 123 }
 124 
 125 
 126 void
 127 zip_error_set(zip_error_t *err, int ze, int se)
 128 {
 129     if (err) {
 130         err->zip_err = ze;
 131         err->sys_err = se;
 132     }
 133 }
 134 
 135 
 136 void
 137 _zip_error_set_from_source(zip_error_t *err, zip_source_t *src)
 138 {
 139     _zip_error_copy(err, zip_source_error(src));
 140 }
 141 
 142 
 143 zip_int64_t
 144 zip_error_to_data(const zip_error_t *error, void *data, zip_uint64_t length)
 145 {
 146     int *e = (int *)data;
 147     
 148     if (length < sizeof(int)*2) {
 149         return -1;
 150     }
 151     
 152     e[0] = zip_error_code_zip(error);
 153     e[1] = zip_error_code_system(error);
 154     return sizeof(int)*2;
 155 }