1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25#include <stdlib.h>
26#include <string.h>
27#include <stdio.h>
28#include <sys/types.h>
29#include <env.h>
30
31static const char	*token = ":";
32
33void
34build_env_list(Elist **list, const char *env)
35{
36	char	*envstr;
37	char	*tok;
38	char	*lasts;
39
40	if ((envstr = getenv(env)) == NULL)
41		return;
42	envstr = strdup(envstr);
43	tok = strtok_r(envstr, token, &lasts);
44	while (tok) {
45		Elist	*lp;
46		if ((lp = (Elist *)malloc(sizeof (Elist))) == NULL) {
47			(void) printf("build_list: malloc failed\n");
48			exit(1);
49		}
50		lp->l_libname = strdup(tok);
51		lp->l_next = *list;
52		*list = lp;
53		tok = strtok_r(NULL, token, &lasts);
54	}
55	free(envstr);
56}
57
58
59Elist *
60check_list(Elist *list, const char *str)
61{
62	const char	*basestr;
63
64	if (list == NULL)
65		return (NULL);
66
67	/*
68	 * Is this a basename or a relative path name
69	 */
70	if ((basestr = strrchr(str, '/')) != NULL)
71		basestr++;
72	else
73		basestr = str;
74
75
76	for (; list; list = list->l_next) {
77		if (strchr(list->l_libname, '/') == NULL) {
78			if (strcmp(basestr, list->l_libname) == 0)
79				return (list);
80		} else {
81			if (strcmp(str, list->l_libname) == 0)
82				return (list);
83		}
84	}
85	return (NULL);
86}
87
88char *
89checkenv(const char *env)
90{
91	char	*envstr;
92	if ((envstr = getenv(env)) == NULL)
93		return (NULL);
94	while (*envstr == ' ')
95		envstr++;
96	if (*envstr == '\0')
97		return (NULL);
98	return (envstr);
99}
100