mess822_base64
Section: C Library Functions (3)
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NAME
mess822_base64 - decode and encode from/to BASE64
SYNTAX
#include <mess822.h>
int mess822_b64decode(out,in,len,flag);
stralloc *out;
const char *in;
int len;
int flag;
int mess822_b64encode(out,in);
stralloc *out;
stralloc *in;
int mess822_b64urlencode(out,in);
stralloc *out;
stralloc *in;
DESCRIPTION
mess822_b64decode
translates the given BASE64 encoded string available at
in
of length
len
on input and returns the corresponding (binary)
character stream on output.
out
is not '\0' terminated.
flag
is typically '0' but could be set '1' in order to display
decoding errors. Rather, if
flag
is set to '4648' it follows the decoding rules
of RFC 4648 in order to allow processing of URLs
and path names.
The return value of
mess822_b64decode
is '0' in case of success and might be '-1'
in case of memory shortage.
mess822_b64encode
takes an input data stream
in
and translates it into the BASE64 format
with maximum line length of 76 characters
to be supplied at
out.
On return, the number of BASE64 characters written
is given. In case of memory shortage '-1' is provided.
mess822_b64urlencode
performs the BASE64 encoding according to RFC 4648 ยง5
while otherwise is identical to
mess822_b64encode.
SEE ALSO
mess822(3),
mess822_quote(3),
mess822_qp(3),
mess822_token(3),
RFC 4658.
Index
- NAME
-
- SYNTAX
-
- DESCRIPTION
-
- SEE ALSO
-
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Time: 09:34:17 GMT, July 11, 2025