audit_encode_nv_string man page on Oracle

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AUDIT_ENCODE_NV_STRING(3)	Linux Audit API	     AUDIT_ENCODE_NV_STRING(3)

NAME
       audit_encode_nv_string - encode a name/value pair in a string

SYNOPSIS
       #include <libaudit.h>

       char  *audit_encode_nv_string(const  char  *name,  const	 char  *value,
       unsigned int vlen)

DESCRIPTION
       This function is used to encode a name/value pair. This should be  used
       on  any field being logged that potentially contains a space, a double-
       quote, or a control character. Any value containing those  have	to  be
       specially  encoded  for	the  auparse  library  to correctly handle the
       value. The encoding method is designed to prevent log injection attacks
       where malicious values could cause parsing errors.

       To  use	this function, pass the name string and value strings on their
       respective arguments. If the value is likely to have a NUL value embedÔÇÉ
       ded within it, you will need to pass a value length that tells in bytes
       how big the value is. Otherwise, you can pass a	0  for	vlen  and  the
       function	 will  simply  use  strlen  against the value pointer. Also be
       aware that the name of the field	 will  cause  auparse  to  do  certain
       things  when  interpretting  the	 value.	 If the name is uid, a user id
       value in decimal is expected. Make sure that well known names are  used
       for their intended purpose or that there is no chance of name collision
       with something new.

RETURN VALUE
       Returns a freshly malloc'ed string that the caller must free or NULL on
       error.

SEE ALSO
       audit_log_user_message(3),	       audit_log_user_comm_message(3),
       audit_log_user_avc_message(3), audit_log_semanage_message(3).

AUTHOR
       Steve Grubb

Red Hat				   Oct 2010	     AUDIT_ENCODE_NV_STRING(3)
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