---
name: "audit_log_user_comm_message"
section: "3"
platform: "linux"
package: "audit"
version: "4.2.1-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/audit_log_user_comm_message"
---

# audit\_log\_user\_comm\_message(3)

log a user message from a console app

## NAME

audit\_log\_user\_comm\_message - log a user message from a console app

## SYNOPSIS

```
#include <libaudit.h>
```

**int audit\_log\_user\_comm\_message(int** *audit\_fd***,**                                 **int** *type***,**                                 **const char \****message***,**                                 **const char \****comm***,**                                 **const char \****hostname***,**                                 **const char \****addr***,**                                 **const char \****tty***,**                                 **int** *result***);**

## DESCRIPTION

This function will log a message to the audit system using a predefined message format. This function should be used by all non-ELF console apps that do not manipulate accounts, groups, or need to log execution of a script. An example would be a Python script recording an event. The function parameters are as follows:

```
audit_fd - The fd returned by audit_open
type - type of message, ex: AUDIT_USYS_CONFIG, AUDIT_USER_LOGIN
message - the message text being sent
comm - the task command name from /proc/self/comm, NULL if unknown
hostname - the hostname if known, NULL if unknown
addr - The network address of the user, NULL if unknown
tty - The tty of the user, if NULL will attempt to figure out
result - 1 is "success" and 0 is "failed"
```

The kernel task command name is limited to 15 bytes because **TASK\_COMM\_LEN** is 16 bytes including the terminating null byte. A non-NULL *comm* value longer than 15 bytes is truncated to 15 bytes and a warning is logged.

## RETURN VALUE

It returns the sequence number which is \> 0 on success or \<= 0 on error.

## ERRORS

This function returns -1 on failure. Examine errno for more info.

## SEE ALSO

[**audit\_log\_user\_message**(3)](/audit_log_user_message/3.md), [**audit\_log\_acct\_message**(3)](/audit_log_acct_message/3.md), [**audit\_log\_user\_avc\_message**(3)](/audit_log_user_avc_message/3.md), [**audit\_log\_semanage\_message**(3)](/audit_log_semanage_message/3.md).

## AUTHOR

Steve Grubb