10-29-2012
If you want to process REs for characters that are not in the portable character set defined by the C and POSIX standards, you have to be sure that the characters you're looking for exist in your current locale. The character '¿' is not in the portable character set defined by C and POSIX. You probably want a Spanish or Portuguese locale if that character is present in your data. You haven't said anything about what system you're using, but I probably can't help here. You need to talk to your system administrator to find out what locales have been installed on your system that support the languages and character sets you're using in your data. (Note that there is nothing wrong with the awk script, the problem is the environment in which it is being run.) To find out what locale you're using, run the command:locale. If the setting of LC_COLLATE reported is something like LC_COLLATE="en_US.UTF-8", '¿' is probably not a collating element in your current locale.
Note also that I am not offering to localize the error messages from this awk script for you to produce diagnostic messages in anything other than English.
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LEARN ABOUT DEBIAN
ausearch_add_timestamp_item
AUSEARCH_ADD_TIMESTAMP_ITEM(3) Linux Audit API AUSEARCH_ADD_TIMESTAMP_ITEM(3)
NAME
ausearch_add_timestamp_item - build up search rule
SYNOPSIS
#include <auparse.h>
int ausearch_add_timestamp_item(auparse_state_t *au, const char *op, time_t sec, unsigned milli, ausearch_rule_t how)
DESCRIPTION
ausearch_add_timestamp_item adds an event time condition to the current audit search expression. The search conditions can then be used to
scan logs, files, or buffers for something of interest. The op parameter specifies the desired comparison. Legal op values are <, <=, >=, >
and =. The left operand of the comparison operator is the timestamp of the examined event, the right operand is specified by the sec and
milli parameters.
The how value determines how this search condition will affect the existing search expression if one is already defined. The possible val-
ues are:
AUSEARCH_RULE_CLEAR
Clear the current search expression, if any, and use only this search condition.
AUSEARCH_RULE_OR
If a search expression E is already configured, replace it by (E || this_search_condition).
AUSEARCH_RULE_AND
If a search expression E is already configured, replace it by (E && this_search_condition).
RETURN VALUE
Returns -1 if an error occurs; otherwise, 0 for success.
APPLICATION USAGE
Use ausearch_add_item(3) and ausearch_add_interpreted_item(3) to add conditions that check audit record fields. Use ausearch_add_expres-
sion(3) to add complex search expressions using a single function call.
SEE ALSO
ausearch_add_expression(3), ausearch_add_item(3), ausearch_add_interpreted_item(3), ausearch_add_regex(3), ausearch_set_stop(3), ause-
arch_clear(3), ausearch_next_event(3), ausearch-expression(5).
AUTHOR
Miloslav Trmac
Red Hat Nov 2007 AUSEARCH_ADD_TIMESTAMP_ITEM(3)