1 /* 2 * com_right.c -- provide Heimdall / Kerberos4kth com_err interfaces 3 * for backwards compatbility 4 * 5 * Copyright (c) 2003 by Theodore Ts'o 6 * 7 * Taken from lib/com_err/error.c from Kerberos4kth distribution. 8 * 9 * Copyright (c) 1997, 1998, 2001 Kungliga Tekniska Hgskolan 10 * (Royal Institute of Technology, Stockholm, Sweden). 11 * All rights reserved. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 24 * 3. Neither the name of the Institute nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 */ 40 41 #include "config.h" 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include "com_err.h" 46 #include "error_table.h" 47 48 const char * 49 com_right(struct et_list *list, long code) 50 { 51 struct et_list *p; 52 for (p = list; p; p = p->next) { 53 if (code >= p->table->base && code < p->table->base + p->table->n_msgs) 54 return p->table->msgs[code - p->table->base]; 55 } 56 return NULL; 57 } 58 59 const char * 60 com_right_r(struct et_list *list, long code, char *str, size_t len) 61 { 62 struct et_list *p; 63 for (p = list; p; p = p->next) { 64 if ((code >= p->table->base) && 65 (code < p->table->base + p->table->n_msgs)) { 66 strncpy(str, p->table->msgs[code - p->table->base], len); 67 str[len-1] = '\0'; 68 return str; 69 } 70 } 71 return NULL; 72 } 73 74 struct foobar { 75 struct et_list etl; 76 struct error_table tab; 77 }; 78 79 /* 80 * We provide this routine for compatibility with Heimdall generated 81 * foo_err.c files, but we don't use this ourselves for foo_err.c 82 * files generated by our compile_et. This is so our foo_err.c 83 * files can be used with older com_err libraries without running 84 * afoul of dependencies. 85 */ 86 void 87 initialize_error_table_r(struct et_list **list, 88 const char **messages, 89 int num_errors, 90 long base) 91 { 92 struct et_list *et, **end; 93 struct error_table *tab; 94 struct foobar *f; 95 96 for (end = list, et = *list; et; end = &et->next, et = et->next) 97 if (et->table->msgs == messages) 98 return; 99 f = malloc(sizeof(*f)); 100 if (f == NULL) 101 return; 102 et = &f->etl; 103 et->table = tab = &f->tab; 104 tab->msgs = messages; 105 tab->n_msgs = num_errors; 106 tab->base = base; 107 et->next = NULL; 108 *end = et; 109 } 110 111 112 void 113 free_error_table(struct et_list *et) 114 { 115 while(et){ 116 struct et_list *p = et; 117 et = et->next; 118 free(p); 119 } 120 } 121
