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CHECK_UTILITY_COMPAT (3) | C library functions | Unix Manual Pages | :man

NAME

check_utility_compat - "determine whether a utility should be compatible"

CONTENTS

Library
Synopsis
Description
Return Values
Files
Errors
History
Authors

LIBRARY


.Lb libc

SYNOPSIS


.In unistd.h int check_utility_compat "const char *utility"

DESCRIPTION

The check_utility_compat function checks whether utility should behave in a traditional (Fx 4.7 -compatible) manner, or in accordance with -p1003.1-2001. The configuration is given as a comma-separated list of utility names; if the list is present but empty, all supported utilities assume their most compatible mode. The check_utility_compat function first checks for an environment variable named _COMPAT_FreeBSD_4. If that environment variable does not exist, then check_utility_compat will attempt to read the contents of a symbolic link named /etc/compat-FreeBSD-4-util. If no configuration is found, compatibility mode is disabled.

RETURN VALUES

The check_utility_compat function returns zero if utility should implement strict -p1003.1-2001 behavior, and nonzero otherwise.

FILES

/etc/compat-FreeBSD-4-util If present, a symbolic link whose expansion gives system-wide default settings for the check_utility_compat function.

ERRORS

No errors are detected.

HISTORY

The check_utility_compat function first appeared in
.Fx 5.0 .

AUTHORS

This manual page was written by
.An Garrett Wollman Aq
wollman@FreeBSD.org .

October 27, 2002 CHECK_UTILITY_COMPAT (3)
shtml">manServer 1.07 from check_utility_compat.3 using doc macros.


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