123 lines
2.9 KiB
C
123 lines
2.9 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License, Version 1.0 only
|
|
* (the "License"). You may not use this file except in compliance
|
|
* with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*/
|
|
|
|
#pragma ident "%Z%%M% %I% %E% SMI"
|
|
|
|
#include "libuutil_common.h"
|
|
|
|
#include <string.h>
|
|
|
|
/*
|
|
* We require names of the form:
|
|
* [provider,]identifier[/[provider,]identifier]...
|
|
*
|
|
* Where provider is either a stock symbol (SUNW) or a java-style reversed
|
|
* domain name (com.sun).
|
|
*
|
|
* Both providers and identifiers must start with a letter, and may
|
|
* only contain alphanumerics, dashes, and underlines. Providers
|
|
* may also contain periods.
|
|
*
|
|
* Note that we do _not_ use the macros in <ctype.h>, since they are affected
|
|
* by the current locale settings.
|
|
*/
|
|
|
|
#define IS_ALPHA(c) \
|
|
(((c) >= 'a' && (c) <= 'z') || ((c) >= 'A' && (c) <= 'Z'))
|
|
|
|
#define IS_DIGIT(c) \
|
|
((c) >= '0' && (c) <= '9')
|
|
|
|
static int
|
|
is_valid_ident(const char *s, const char *e, int allowdot)
|
|
{
|
|
char c;
|
|
|
|
if (s >= e)
|
|
return (0); /* name is empty */
|
|
|
|
c = *s++;
|
|
if (!IS_ALPHA(c))
|
|
return (0); /* does not start with letter */
|
|
|
|
while (s < e && (c = *s++) != 0) {
|
|
if (IS_ALPHA(c) || IS_DIGIT(c) || c == '-' || c == '_' ||
|
|
(allowdot && c == '.'))
|
|
continue;
|
|
return (0); /* invalid character */
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
is_valid_component(const char *b, const char *e, uint_t flags)
|
|
{
|
|
char *sp;
|
|
|
|
if (flags & UU_NAME_DOMAIN) {
|
|
sp = strchr(b, ',');
|
|
if (sp != NULL && sp < e) {
|
|
if (!is_valid_ident(b, sp, 1))
|
|
return (0);
|
|
b = sp + 1;
|
|
}
|
|
}
|
|
|
|
return (is_valid_ident(b, e, 0));
|
|
}
|
|
|
|
int
|
|
uu_check_name(const char *name, uint_t flags)
|
|
{
|
|
const char *end = name + strlen(name);
|
|
const char *p;
|
|
|
|
if (flags & ~(UU_NAME_DOMAIN | UU_NAME_PATH)) {
|
|
uu_set_error(UU_ERROR_UNKNOWN_FLAG);
|
|
return (-1);
|
|
}
|
|
|
|
if (!(flags & UU_NAME_PATH)) {
|
|
if (!is_valid_component(name, end, flags))
|
|
goto bad;
|
|
return (0);
|
|
}
|
|
|
|
while ((p = strchr(name, '/')) != NULL) {
|
|
if (!is_valid_component(name, p - 1, flags))
|
|
goto bad;
|
|
name = p + 1;
|
|
}
|
|
if (!is_valid_component(name, end, flags))
|
|
goto bad;
|
|
|
|
return (0);
|
|
|
|
bad:
|
|
uu_set_error(UU_ERROR_INVALID_ARGUMENT);
|
|
return (-1);
|
|
}
|