compile_et.c revision 127807
1/* 2 * Copyright (c) 1998-2002 Kungliga Tekniska H�gskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33/* $FreeBSD: head/contrib/com_err/compile_et.c 127807 2004-04-03 21:17:01Z nectar $ */ 34 35#undef ROKEN_RENAME 36#include "compile_et.h" 37#include <getarg.h> 38 39#if 0 40RCSID("$Id: compile_et.c,v 1.16 2002/08/20 12:44:51 joda Exp $"); 41#endif 42 43#include <err.h> 44#include "parse.h" 45 46int numerror; 47extern FILE *yyin; 48 49extern void yyparse(void); 50 51long base; 52int number; 53char *prefix; 54char *id_str; 55 56char name[128]; 57char Basename[128]; 58 59#ifdef YYDEBUG 60extern int yydebug = 1; 61#endif 62 63char *filename; 64char hfn[128]; 65char cfn[128]; 66 67struct error_code *codes = NULL; 68 69static int 70generate_c(void) 71{ 72 int n; 73 struct error_code *ec; 74 75 FILE *c_file = fopen(cfn, "w"); 76 if(c_file == NULL) 77 return 1; 78 79 fprintf(c_file, "/* Generated from %s */\n", filename); 80 if(id_str) 81 fprintf(c_file, "/* %s */\n", id_str); 82 fprintf(c_file, "\n"); 83 fprintf(c_file, "#include <stddef.h>\n"); 84 fprintf(c_file, "#include <com_err.h>\n"); 85 fprintf(c_file, "#include \"%s\"\n", hfn); 86 fprintf(c_file, "\n"); 87 88 fprintf(c_file, "static const char *%s_error_strings[] = {\n", name); 89 90 for(ec = codes, n = 0; ec; ec = ec->next, n++) { 91 while(n < ec->number) { 92 fprintf(c_file, "\t/* %03d */ \"Reserved %s error (%d)\",\n", 93 n, name, n); 94 n++; 95 96 } 97 fprintf(c_file, "\t/* %03d */ \"%s\",\n", ec->number, ec->string); 98 } 99 100 fprintf(c_file, "\tNULL\n"); 101 fprintf(c_file, "};\n"); 102 fprintf(c_file, "\n"); 103 fprintf(c_file, "#define num_errors %d\n", number); 104 fprintf(c_file, "\n"); 105 fprintf(c_file, 106 "void initialize_%s_error_table_r(struct et_list **list)\n", 107 name); 108 fprintf(c_file, "{\n"); 109 fprintf(c_file, 110 " initialize_error_table_r(list, %s_error_strings, " 111 "num_errors, ERROR_TABLE_BASE_%s);\n", name, name); 112 fprintf(c_file, "}\n"); 113 fprintf(c_file, "\n"); 114 fprintf(c_file, "void initialize_%s_error_table(void)\n", name); 115 fprintf(c_file, "{\n"); 116 fprintf(c_file, 117 " init_error_table(%s_error_strings, ERROR_TABLE_BASE_%s, " 118 "num_errors);\n", name, name); 119 fprintf(c_file, "}\n"); 120 121 fclose(c_file); 122 return 0; 123} 124 125static int 126generate_h(void) 127{ 128 struct error_code *ec; 129 char fn[128]; 130 FILE *h_file = fopen(hfn, "w"); 131 char *p; 132 133 if(h_file == NULL) 134 return 1; 135 136 snprintf(fn, sizeof(fn), "__%s__", hfn); 137 for(p = fn; *p; p++) 138 if(!isalnum((unsigned char)*p)) 139 *p = '_'; 140 141 fprintf(h_file, "/* Generated from %s */\n", filename); 142 if(id_str) 143 fprintf(h_file, "/* %s */\n", id_str); 144 fprintf(h_file, "\n"); 145 fprintf(h_file, "#ifndef %s\n", fn); 146 fprintf(h_file, "#define %s\n", fn); 147 fprintf(h_file, "\n"); 148 fprintf(h_file, "struct et_list;\n"); 149 fprintf(h_file, "\n"); 150 fprintf(h_file, 151 "void initialize_%s_error_table_r(struct et_list **);\n", 152 name); 153 fprintf(h_file, "\n"); 154 fprintf(h_file, "void initialize_%s_error_table(void);\n", name); 155 fprintf(h_file, "#define init_%s_err_tbl initialize_%s_error_table\n", 156 name, name); 157 fprintf(h_file, "\n"); 158 fprintf(h_file, "typedef enum %s_error_number{\n", name); 159 160 for(ec = codes; ec; ec = ec->next) { 161 fprintf(h_file, "\t%s = %ld%s\n", ec->name, base + ec->number, 162 (ec->next != NULL) ? "," : ""); 163 } 164 165 fprintf(h_file, "} %s_error_number;\n", name); 166 fprintf(h_file, "\n"); 167 fprintf(h_file, "#define ERROR_TABLE_BASE_%s %ld\n", name, base); 168 fprintf(h_file, "\n"); 169 fprintf(h_file, "#endif /* %s */\n", fn); 170 171 172 fclose(h_file); 173 return 0; 174} 175 176static int 177generate(void) 178{ 179 return generate_c() || generate_h(); 180} 181 182int help_flag; 183struct getargs args[] = { 184 { "help", 0, arg_flag, &help_flag } 185}; 186int num_args = sizeof(args) / sizeof(args[0]); 187 188static void 189usage(int code) 190{ 191 arg_printusage(args, num_args, NULL, "error-table"); 192 exit(code); 193} 194 195int 196main(int argc, char **argv) 197{ 198 char *p; 199 int optind = 0; 200 201 setprogname(argv[0]); 202 if(getarg(args, num_args, argc, argv, &optind)) 203 usage(1); 204 if(help_flag) 205 usage(0); 206 207 if(optind == argc) 208 usage(1); 209 filename = argv[optind]; 210 yyin = fopen(filename, "r"); 211 if(yyin == NULL) 212 err(1, "%s", filename); 213 214 215 p = strrchr(filename, '/'); 216 if(p) 217 p++; 218 else 219 p = filename; 220 strncpy(Basename, p, sizeof(Basename)); 221 Basename[sizeof(Basename) - 1] = '\0'; 222 223 Basename[strcspn(Basename, ".")] = '\0'; 224 225 snprintf(hfn, sizeof(hfn), "%s.h", Basename); 226 snprintf(cfn, sizeof(cfn), "%s.c", Basename); 227 228 yyparse(); 229 if(numerror) 230 return 1; 231 232 return generate(); 233} 234