NAME

       libwget-base64

SYNOPSIS

   Functions
       int wget_base64_is_string (const char *src)
       size_t wget_base64_decode (char *dst, const char *src, size_t n)
       char * wget_base64_decode_alloc (const char *src, size_t n, size_t *outlen)
       size_t wget_base64_encode (char *dst, const char *src, size_t n)
       char * wget_base64_encode_alloc (const char *src, size_t n)
       char * wget_base64_encode_vprintf_alloc (const char *fmt, va_list args)
       char * wget_base64_encode_printf_alloc (const char *fmt,...)

Detailed Description

       This is a collection base64 encoding/decoding functions used in Wget2.

Function Documentation

   int wget_base64_is_string (const char * src)
       Parameters:
           src String to be checked

       Returns:
           1 if src is a base64 string, 0 otherwise

       Checks whether src is a base64 string. Returns 0 if src is NULL.

   size_t wget_base64_decode (char * dst, const char * src, size_t n)
       Parameters:
           dst Output buffer
           src Base64 string to be decoded
           n Length of src

       Returns:
           Number of bytes written into dst

       Decodes n bytes of the base64 string src. The decoded bytes are written into dst and are
       0-terminated.

       The size of dst has to be at minimum ((n + 3) / 4) * 3 + 1 bytes.

   char* wget_base64_decode_alloc (const char * src, size_t n, size_t * outlen)
       Parameters:
           src Base64 string to be decoded
           n Length of src
           outlen Length of returned string, may be NULL.

       Returns:
           Decoded bytes, zero terminated

       Decodes n bytes of the base64 string src. The decoded bytes are returned in an allocated
       buffer.

       You should free() the returned string when not needed any more.

   size_t wget_base64_encode (char * dst, const char * src, size_t n)
       Parameters:
           dst Base64 output string
           src Input buffer
           n Number of bytes to be encoded

       Returns:
           Length of output string dst

       Encodes n bytes from src into a base64 string. The encoded string is written into dst
       (0-terminated).

       The length of dst has to be at minimum ((n + 2) / 3) * 4 + 1 bytes.

   char* wget_base64_encode_alloc (const char * src, size_t n)
       Parameters:
           src Input buffer
           n Number of bytes to be encoded

       Returns:
           Base64 encoded string

       Encodes n bytes from input buffer src. The encoded string is returned in an allocated
       buffer.

       You should free() the returned string when not needed any more.

   char* wget_base64_encode_vprintf_alloc (const char * fmt, va_list args)
       Parameters:
           fmt Printf-like format string
           args Argument list

       Returns:
           Base64 encoded string

       Encodes the string constructed by fmt and args. The encoded string is returned in an
       allocated buffer.

       You should free() the returned string when not needed any more.

   char* wget_base64_encode_printf_alloc (const char * fmt,  ...)
       Parameters:
           fmt Printf-like format string
           ... Argument list

       Returns:
           Base64 encoded string

       Encodes the string constructed by fmt and the arguments. The encoded string is returned in
       an allocated buffer.

       You should free() the returned string when not needed any more.

Author

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