51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
#ifndef HV_BASE64_H_
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#define HV_BASE64_H_
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#include "hexport.h"
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#define BASE64_ENCODE_OUT_SIZE(s) (((s) + 2) / 3 * 4)
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#define BASE64_DECODE_OUT_SIZE(s) (((s)) / 4 * 3)
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BEGIN_EXTERN_C
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// @return encoded size
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HV_EXPORT int hv_base64_encode(const unsigned char *in, unsigned int inlen, char *out);
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// @return decoded size
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HV_EXPORT int hv_base64_decode(const char *in, unsigned int inlen, unsigned char *out);
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END_EXTERN_C
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#ifdef __cplusplus
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#include <string.h>
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#include <string>
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namespace hv {
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HV_INLINE std::string Base64Encode(const unsigned char* data, unsigned int len) {
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int encoded_size = BASE64_ENCODE_OUT_SIZE(len);
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std::string encoded_str(encoded_size + 1, 0);
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encoded_size = hv_base64_encode(data, len, (char*)encoded_str.data());
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encoded_str.resize(encoded_size);
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return encoded_str;
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}
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HV_INLINE std::string Base64Decode(const char* str, unsigned int len = 0) {
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if (len == 0) len = strlen(str);
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int decoded_size = BASE64_DECODE_OUT_SIZE(len);
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std::string decoded_buf(decoded_size + 1, 0);
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decoded_size = hv_base64_decode(str, len, (unsigned char*)decoded_buf.data());
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if (decoded_size > 0) {
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decoded_buf.resize(decoded_size);
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} else {
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decoded_buf.clear();
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}
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return decoded_buf;
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}
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}
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#endif
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#endif // HV_BASE64_H_
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