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1bc2362e07
utility functions which convert between string namespace names and
numeric constants used by the interface. Right now, two namespaces
are supported, EXTATTR_NAMESPACE_SYSTEM ("system") and
EXTATTR_NAMESPACE_USER ("user"). These functions are used by
various userland EA utilities, rather than hard coding the routines
all over the place.
Obtained from: TrustedBSD Project
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/*-
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* Copyright (c) 2001 Robert N. M. Watson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* TrustedBSD: Utility functions for extended attributes.
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*/
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#include <sys/types.h>
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#include <sys/extattr.h>
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#include <errno.h>
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#include <string.h>
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int
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extattr_namespace_to_string(int namespace, char **string)
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{
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switch(namespace) {
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case EXTATTR_NAMESPACE_USER:
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if (*string != NULL)
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*string = strdup(EXTATTR_NAMESPACE_USER_STRING);
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return (0);
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case EXTATTR_NAMESPACE_SYSTEM:
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if (*string != NULL)
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*string = strdup(EXTATTR_NAMESPACE_SYSTEM_STRING);
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return (0);
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default:
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errno = EINVAL;
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return (-1);
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}
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}
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int
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extattr_string_to_namespace(const char *string, int *namespace)
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{
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if (!strcmp(string, EXTATTR_NAMESPACE_USER_STRING)) {
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if (namespace != NULL)
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*namespace = EXTATTR_NAMESPACE_USER;
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return (0);
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} else if (!strcmp(string, EXTATTR_NAMESPACE_SYSTEM_STRING)) {
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if (namespace != NULL)
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*namespace = EXTATTR_NAMESPACE_SYSTEM;
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return (0);
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} else {
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errno = EINVAL;
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return (-1);
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}
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}
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