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 2010 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 *
26 * Copyright 2015 PALO, Richard
27 *
28 * Copyright (c) 2018, Joyent, Inc.
29 */
30
31#include <stdio.h>
32#include <stdlib.h>
33#include <string.h>
34
35#include "list.h"
36#include "exception_list.h"
37#include "arch.h"
38
39/*
40 * This is global so that the protodir reading functions can rely on the
41 * exception list to weed out innocuous problems in the IHV gate.
42 */
43elem_list exception_list;
44
45#define	FS	" \t\n"
46
47static int
48parse_exception_line(char *line, elem_list *list)
49{
50	char	*name, *arch;
51	elem	*e;
52
53	if ((name = strtok(line, FS)) == NULL) {
54		/* don't complain; this is only a blank line */
55		return (0);
56	}
57
58	if ((arch = strtok(NULL, FS)) == NULL) {
59		arch = "all";
60	}
61
62	e = (elem *) malloc(sizeof (elem));
63	if (e == NULL) {
64		perror("malloc");
65		exit(1);
66	}
67
68	e->inode = 0;
69	e->perm = 0;
70	e->ref_cnt = 0;
71	e->flag = 0;
72	e->major = 0;
73	e->minor = 0;
74	e->link_parent = NULL;
75	e->link_sib = NULL;
76	e->symsrc = NULL;
77	e->file_type = DIR_T;
78
79	while ((e->arch = assign_arch(arch)) == 0) {
80		if ((arch = strtok(NULL, FS)) == NULL) {
81			free(e);
82			return (0);
83		}
84	}
85
86	(void) strcpy(e->name, name);
87	add_elem(list, e);
88
89	return (1);
90}
91
92int
93read_in_exceptions(const char *exception_file, int verbose)
94{
95	FILE	*except_fp;
96	char	buf[BUFSIZ];
97	int	count = 0;
98
99	exception_file = exception_file ? exception_file : EXCEPTION_FILE;
100
101	if (verbose) {
102		(void) printf("reading in exceptions from %s...\n",
103		    exception_file);
104	}
105
106	if ((except_fp = fopen(exception_file, "r")) == NULL) {
107		perror(exception_file);
108		return (0);
109	}
110	while (fgets(buf, BUFSIZ, except_fp)) {
111		if (buf[0] != '#')	/* allow for comments */
112			count += parse_exception_line(buf, &exception_list);
113	}
114	if (verbose)
115		(void) printf("read in %d exceptions...\n", count);
116
117	return (count);
118}
119