tools/protocmp/exception_list.c

	exception_list.c revision ead1f93ee620d7580f7e53350fe5a884fc4f158a
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (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 2010 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "list.h"
#include "exception_list.h"
#include "arch.h"

/*
 * This is global so that the protodir reading functions can rely on the
 * exception list to weed out innocuous problems in the IHV gate.
 */
elem_list exception_list;

#define FS  " \t\n"

static int
parse_exception_line(char *line, elem_list *list)
{
    char    *name, *arch;
    elem    *e;

    if ((name = strtok(line, FS)) == NULL) {
        /* don't complain; this is only a blank line */
        return (0);
    }

    if ((arch = strtok(NULL, FS)) == NULL) {
        arch = "all";
    }

    e = (elem *) malloc(sizeof (elem));

    e->inode = 0;
    e->perm = 0;
    e->ref_cnt = 0;
    e->flag = 0;
    e->major = 0;
    e->minor = 0;
    e->link_parent = NULL;
    e->link_sib = NULL;
    e->symsrc = NULL;
    e->file_type = DIR_T;

    while ((e->arch = assign_arch(arch)) == NULL) {
        if ((arch = strtok(NULL, FS)) == NULL) {
            return (0);
        }
    }

    (void) strcpy(e->name, name);
    add_elem(list, e);

    return (1);
}

int
read_in_exceptions(const char *exception_file, int verbose)
{
    FILE    *except_fp;
    char    buf[BUFSIZ];
    int count = 0;

    exception_file = exception_file ? exception_file : EXCEPTION_FILE;

    if (verbose) {
        (void) printf("reading in exceptions from %s...\n",
            exception_file);
    }

    if ((except_fp = fopen(exception_file, "r")) == NULL) {
        perror(exception_file);
        return (0);
    }
    while (fgets(buf, BUFSIZ, except_fp)) {
        if (buf[0] != '#')  /* allow for comments */
            count += parse_exception_line(buf, &exception_list);
    }
    if (verbose)
        (void) printf("read in %d exceptions...\n", count);

    return (count);
}