usr/src/tools/protocmp/exception_list.c

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