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UNIX for Dummies Questions & Answers
If variable equals string help
Post 302931645 by CarloM on Wednesday 14th of January 2015 10:00:18 AM
01-14-2015
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LEARN ABOUT DEBIAN
ausyscall
AUSYSCALL:(8) System Administration Utilities AUSYSCALL:(8) NAME
ausyscall - a program that allows mapping syscall names and numbers SYNOPSIS
ausyscall [arch] name | number | --dump | --exact DESCRIPTION
ausyscall is a program that prints out the mapping from syscall name to number and reverse for the given arch. The arch can be anything returned by `uname -m`. If arch is not given, the program will take a guess based on the running image. You may give the syscall name or number and it will find the opposite. You can also dump the whole table with the --dump option. By default a syscall name lookup will be a substring match meaning that it will try to match all occurances of the given name with syscalls. So giving a name of chown will match both fchown and chown as any other syscall with chown in its name. If this behavior is not desired, pass the --exact flag and it will do an exact string match. This program can be used to verify syscall numbers on a biarch platform for rule optimization. For example, suppose you had an auditctl rule: -a always, exit -S open -F exit=-EPERM -k fail-open If you wanted to verify that both 32 and 64 bit programs would be audited, run "ausyscall i386 open" and then "ausyscall x86_64 open". Look at the returned numbers. If they are different, you will have to write two auditctl rules to get complete coverage. -a always,exit -F arch=b32 -S open -F exit=-EPERM -k fail-open -a always,exit -F arch=b64 -S open -F exit=-EPERM -k fail-open OPTIONS
--dump Print all syscalls for the given arch --exact Instead of doing a partial word match, match the given syscall name exactly. SEE ALSO
ausearch(8), auditctl(8). AUTHOR
Steve Grubb Red Hat Nov 2008 AUSYSCALL:(8)