---
name: "shishi_der_msgtype"
section: "3"
platform: "linux"
package: "shishi-doc"
version: "1.0.3-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/shishi_der_msgtype"
---

# shishi\_der\_msgtype(3)

API function

## NAME

shishi\_der\_msgtype - API function

## SYNOPSIS

**#include \<shishi.h\>**

**Shishi\_msgtype shishi\_der\_msgtype(Shishi \*** *handle***, const char \*** *der***, size\_t** *derlen***);**

## ARGUMENTS

- Shishi \* handle

  shishi handle as allocated by **shishi\_init()**.

- const char \* der

  input character array with DER encoding.

- size\_t derlen

  length of input character array with DER encoding.

## DESCRIPTION

Determine msg-type of DER coded data of a packet.

## RETURN VALUE

Returns msg-type of DER data, 0 on failure.

## REPORTING BUGS

Report bugs to \<bug-shishi@gnu.org\>. GNU Shishi home page: http://www.gnu.org/software/shishi/ General help using GNU software: http://www.gnu.org/gethelp/

## COPYRIGHT

Copyright © 2002-2022 Simon Josefsson.\
 Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.

## SEE ALSO

The full documentation for **shishi** is maintained as a Texinfo manual.  If the **info** and **shishi** programs are properly installed at your site, the command

-

  **info shishi**

should give you access to the complete manual.