AUDIT_ENCODE_NV_STRING(3) Linux Audit API AUDIT_ENCODE_NV_STRING(3)
audit_encode_nv_string - encode a name/value pair in a string
#include <libaudit.h> char *audit_encode_nv_string(const char *name, const char *value, unsigned int vlen)
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 embedded 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 interpreting 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.
Returns a freshly malloc'ed string that the caller must free or NULL on error.
audit_log_user_message(3), audit_log_user_comm_message(3), audit_log_user_avc_message(3), audit_log_semanage_message(3).
This page is part of the audit (Linux Audit) project. Information about the project can be found at ⟨http://people.redhat.com/sgrubb/audit/⟩. If you have a bug report for this manual page, send it to firstname.lastname@example.org. This page was obtained from the project's upstream Git repository ⟨https://github.com/linux-audit/audit-userspace.git⟩ on 2021-08-27. (At that time, the date of the most recent commit that was found in the repository was 2021-08-21.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to email@example.com Red Hat Oct 2010 AUDIT_ENCODE_NV_STRING(3)
Pages that refer to this page: audit_encode_value(3), audit_value_needs_encoding(3)