tree 9a231bb089f2e4fdaaf92cdb1ad05f444d029420
parent 1c57144d1d8af469281e0dffb94ecb23fb1c15f2
author Thu Nguyen <thu@os.amperecomputing.com> 1719909789 +0000
committer Andrew Jeffery <andrew@codeconstruct.com.au> 1721011125 +0800

msgbuf: Add pldm_msgbuf_span_string_ascii()

Add pldm_msgbuf_span_string_ascii() API to find the start of the ascii
string in the message buffer.

```
pldm_msgbuf_span_string_ascii(struct pldm_msgbuf *ctx, void **cursor,
			      size_t *length)
```

The API returns the start pointer of ascii string in the message buffer
and length of that ascii string includes Terminator.
The `cursor` and `length` are optional. Input NULL to `cursor` and
`length` will cause the message buffer cursor points to remaining data.
The caller can ignore `length` option by input NULL if they don't care
about the size of ascii string.

Change-Id: I4a73b7425ee1e4e5621eb16de6e16189efdf202b
Signed-off-by: Thu Nguyen <thu@os.amperecomputing.com>
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>