xref: /illumos-gate/usr/src/tools/protocmp/exception_list.c (revision b1e2e3fb17324e9ddf43db264a0c64da7756d9e6)
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  */
43 elem_list exception_list;
44 
45 #define	FS	" \t\n"
46 
47 static int
48 parse_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 
92 int
93 read_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