Civetweb API Reference
mg_base64_encode( src, src_len, dst, dst_len );
mg_base64_decode( src, src_len, dst, dst_len );
Parameters base64_encode
| Parameter | 
Type | 
Description | 
src | 
const unsigned char * | 
Source buffer containing bytes to be encoded into BASE-64 code. | 
src_len | 
size_t | 
Number of bytes in source buffer to be encoded. | 
dst | 
char * | 
Destination string buffer. | 
dst_len | 
size_t * | 
Pointer to a variable containing the available size of the destination buffer in bytes. | 
Parameters base64_decode
| Parameter | 
Type | 
Description | 
src | 
const char * | 
Source string containing BASE-64 encoded data. | 
src_len | 
size_t | 
Number of bytes in the source buffer to be decoded. | 
dst | 
unsigned char * | 
Destination byte buffer. | 
dst_len | 
size_t * | 
Pointer to a variable containing the available size of the destination buffer in bytes. | 
Return Value
| Type | 
Description | 
int | 
Error information. -1 indicates success. | 
Description
The function mg_base64_encode() encodes the source buffer into the destination buffer using BASE-64 encoding.
The function mg_base64_decode() reads a BASE-64 encoded source buffer and decodes it into the destination buffer.
Both functions return -1 on success.
If the destination buffer is not big enough, the functions return 0.
If the source buffer supplied to mg_base64_decode() contains invalid characters, the return value is the position of this character.