58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
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#pragma once
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// For: check and load scanner configuration json
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//
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// Date: 2022-08-12
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//
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// FileName: 0239.hsc
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//
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// Location: same parent path of scanner component, rel: ./settings
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//
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// Format: 0: short - 1.2, version of the file format
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//
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// 2: int - total length of the whole file, include this head
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//
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// 6: unsigned - checksum of content
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//
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// 10: BASE64 of the json content
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#include <string>
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#pragma pack(push)
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#pragma pack(1)
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typedef struct _scanner_setting_file_head
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{
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unsigned char ver_main;
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unsigned char ver_sub;
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unsigned int length; // whole file length, include this head
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unsigned int checksum; // checksum of BASE64 content
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unsigned int timestamp; // time(NULL)
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char base64_content[0];
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}SSFILEH, *LPSSFILEH;
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#pragma pack(pop)
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class base64
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{
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char base64_ind_[128];
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char base64_char_[80];
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char padding_char_;
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bool is_valid_base64_table(const char* table);
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bool initialize_base64_table(const char* table);
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public:
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base64();
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~base64();
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public:
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bool set_base64_table(const char* table = nullptr);
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std::string encode(const char* data, size_t bytes, unsigned int line_bytes = -1, bool need_padding = true);
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std::string decode(const char* data, size_t bytes);
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};
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// return 0 for success, otherwise error code
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int load_scanner_setting(const char* file, std::string& jsn);
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int save_scanner_setting(const char* file, const std::string& jsn);
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