zip_error_strerror.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <zlib.h>
#include "zipint.h"

Go to the source code of this file.

Functions
ZIP_EXTERN const char *	zip_error_strerror (zip_error_t *err)

Function Documentation

zip_error_strerror()

ZIP_EXTERN const char* zip_error_strerror

(

zip_error_t *

err

)

Definition at line 43 of file zip_error_strerror.c.

                                     {
    const char *zip_error_string, *system_error_string;
    char buf[128], *s;
 
    zip_error_fini(err);
 
    if (err->zip_err < 0 || err->zip_err >= _zip_err_str_count) {
        snprintf(buf, sizeof(buf), "Unknown error %d", err->zip_err);
        buf[sizeof(buf) - 1] = '\0'; /* make sure string is NUL-terminated */
        zip_error_string = NULL;
        system_error_string = buf;
    }
    else {
        zip_error_string = _zip_err_str[err->zip_err].description;
 
        switch (_zip_err_str[err->zip_err].type) {
            case ZIP_ET_SYS:
                system_error_string = strerror(err->sys_err);
                break;
                
            case ZIP_ET_ZLIB:
                system_error_string = zError(err->sys_err);
                break;
                
            case ZIP_ET_LIBZIP: {
                zip_uint8_t error = GET_ERROR_FROM_DETAIL(err->sys_err);
                int index = GET_INDEX_FROM_DETAIL(err->sys_err);
                
                if (error == 0) {
                    system_error_string = NULL;
                }
                else if (error >= _zip_err_details_count) {
                    snprintf(buf, sizeof(buf), "invalid detail error %u", error);
                    buf[sizeof(buf) - 1] = '\0'; /* make sure string is NUL-terminated */
                    system_error_string = buf;
                }
                else if (_zip_err_details[error].type == ZIP_DETAIL_ET_ENTRY && index < MAX_DETAIL_INDEX) {
                    snprintf(buf, sizeof(buf), "entry %d: %s", index, _zip_err_details[error].description);
                    buf[sizeof(buf) - 1] = '\0'; /* make sure string is NUL-terminated */
                    system_error_string = buf;
                }
                else {
                    system_error_string = _zip_err_details[error].description;
                }
                break;
            }
                
            default:
                system_error_string = NULL;
        }
    }
 
    if (system_error_string == NULL) {
        return zip_error_string;
    }
    else {
        if ((s = (char *)malloc(strlen(system_error_string) + (zip_error_string ? strlen(zip_error_string) + 2 : 0) + 1)) == NULL) {
            return _zip_err_str[ZIP_ER_MEMORY].description;
        }
 
        sprintf(s, "%s%s%s", (zip_error_string ? zip_error_string : ""), (zip_error_string ? ": " : ""), system_error_string);
        err->str = s;
 
        return s;
    }
}

References _zip_err_details, _zip_err_details_count, _zip_err_str, _zip_err_str_count, setup::description, _zip_err_info::description, err, error(), GET_ERROR_FROM_DETAIL, GET_INDEX_FROM_DETAIL, malloc(), MAX_DETAIL_INDEX, NULL, s, snprintf, sprintf, type, _zip_err_info::type, zError(), ZIP_DETAIL_ET_ENTRY, ZIP_ER_MEMORY, zip_error_fini(), ZIP_ET_LIBZIP, ZIP_ET_SYS, and ZIP_ET_ZLIB.

Referenced by add_from_zip(), cat(), copy_source(), do_read(), list_zip(), main(), merge_zip(), open_compressed(), open_file(), windows_open(), write_memory_src_to_file(), zip_file_strerror(), and zip_strerror().