crypto/external/bsd/heimdal/dist/lib/com_err/compile_et.c

   1 /*      $NetBSD: compile_et.c,v 1.3 2014/04/24 13:45:34 pettai Exp $    */
   2
   3 /*
   4  * Copyright (c) 1998-2002 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #undef ROKEN_RENAME
  37
  38 #include "config.h"
  39
  40 #include "compile_et.h"
  41 #include <getarg.h>
  42 #include <libgen.h>
  43
  44 #include <roken.h>
  45 #include <err.h>
  46 #include "parse.h"
  47
  48 int numerror;
  49 extern FILE *yyin;
  50
  51 int yyparse(void);
  52
  53 long base_id;
  54 int number;
  55 char *prefix;
  56 char *id_str;
  57
  58 char name[128];
  59 char Basename[128];
  60
  61 #ifdef YYDEBUG
  62 extern int yydebug = 1;
  63 #endif
  64
  65 char *filename;
  66 char hfn[128];
  67 char cfn[128];
  68
  69 struct error_code *codes = NULL;
  70
  71 static int
  72 generate_c(void)
  73 {
  74     int n;
  75     struct error_code *ec;
  76
  77     FILE *c_file = fopen(cfn, "w");
  78     if(c_file == NULL)
  79         return 1;
  80
  81     fprintf(c_file, "/* Generated from %s */\n", basename(filename));
  82     if(id_str)
  83         fprintf(c_file, "/* %s */\n", id_str);
  84     fprintf(c_file, "\n");
  85     fprintf(c_file, "#include <stddef.h>\n");
  86     fprintf(c_file, "#include <krb5/com_err.h>\n");
  87     fprintf(c_file, "#include \"%s\"\n", hfn);
  88     fprintf(c_file, "\n");
  89     fprintf(c_file, "#define N_(x) (x)\n");
  90     fprintf(c_file, "\n");
  91
  92     fprintf(c_file, "static const char *%s_error_strings[] = {\n", name);
  93
  94     for(ec = codes, n = 0; ec; ec = ec->next, n++) {
  95         while(n < ec->number) {
  96             fprintf(c_file, "\t/* %03d */ \"Reserved %s error (%d)\",\n",
  97                     n, name, n);
  98             n++;
  99
 100         }
 101         fprintf(c_file, "\t/* %03d */ N_(\"%s\"),\n",
 102                 ec->number, ec->string);
 103     }
 104
 105     fprintf(c_file, "\tNULL\n");
 106     fprintf(c_file, "};\n");
 107     fprintf(c_file, "\n");
 108     fprintf(c_file, "#define num_errors %d\n", number);
 109     fprintf(c_file, "\n");
 110     fprintf(c_file,
 111             "void initialize_%s_error_table_r(struct et_list **list)\n",
 112             name);
 113     fprintf(c_file, "{\n");
 114     fprintf(c_file,
 115             "    initialize_error_table_r(list, %s_error_strings, "
 116             "num_errors, ERROR_TABLE_BASE_%s);\n", name, name);
 117     fprintf(c_file, "}\n");
 118     fprintf(c_file, "\n");
 119     fprintf(c_file, "void initialize_%s_error_table(void)\n", name);
 120     fprintf(c_file, "{\n");
 121     fprintf(c_file,
 122             "    init_error_table(%s_error_strings, ERROR_TABLE_BASE_%s, "
 123             "num_errors);\n", name, name);
 124     fprintf(c_file, "}\n");
 125
 126     fclose(c_file);
 127     return 0;
 128 }
 129
 130 static int
 131 generate_h(void)
 132 {
 133     struct error_code *ec;
 134     char fn[128];
 135     FILE *h_file = fopen(hfn, "w");
 136     char *p;
 137
 138     if(h_file == NULL)
 139         return 1;
 140
 141     snprintf(fn, sizeof(fn), "__%s__", hfn);
 142     for(p = fn; *p; p++)
 143         if(!isalnum((unsigned char)*p))
 144             *p = '_';
 145
 146     fprintf(h_file, "/* Generated from %s */\n", basename(filename));
 147     if(id_str)
 148         fprintf(h_file, "/* %s */\n", id_str);
 149     fprintf(h_file, "\n");
 150     fprintf(h_file, "#ifndef %s\n", fn);
 151     fprintf(h_file, "#define %s\n", fn);
 152     fprintf(h_file, "\n");
 153     fprintf(h_file, "struct et_list;\n");
 154     fprintf(h_file, "\n");
 155     fprintf(h_file,
 156             "void initialize_%s_error_table_r(struct et_list **);\n",
 157             name);
 158     fprintf(h_file, "\n");
 159     fprintf(h_file, "void initialize_%s_error_table(void);\n", name);
 160     fprintf(h_file, "#define init_%s_err_tbl initialize_%s_error_table\n",
 161             name, name);
 162     fprintf(h_file, "\n");
 163     fprintf(h_file, "typedef enum %s_error_number{\n", name);
 164
 165     for(ec = codes; ec; ec = ec->next) {
 166         fprintf(h_file, "\t%s = %ld%s\n", ec->name, base_id + ec->number,
 167                 (ec->next != NULL) ? "," : "");
 168     }
 169
 170     fprintf(h_file, "} %s_error_number;\n", name);
 171     fprintf(h_file, "\n");
 172     fprintf(h_file, "#define ERROR_TABLE_BASE_%s %ld\n", name, base_id);
 173     fprintf(h_file, "\n");
 174     fprintf(h_file, "#define COM_ERR_BINDDOMAIN_%s \"heim_com_err%ld\"\n", name, base_id);
 175     fprintf(h_file, "\n");
 176     fprintf(h_file, "#endif /* %s */\n", fn);
 177
 178
 179     fclose(h_file);
 180     return 0;
 181 }
 182
 183 static int
 184 generate(void)
 185 {
 186     return generate_c() || generate_h();
 187 }
 188
 189 int version_flag;
 190 int help_flag;
 191 struct getargs args[] = {
 192     { "version", 0, arg_flag, &version_flag },
 193     { "help", 0, arg_flag, &help_flag }
 194 };
 195 int num_args = sizeof(args) / sizeof(args[0]);
 196
 197 static void
 198 usage(int code)
 199 {
 200     arg_printusage(args, num_args, NULL, "error-table");
 201     exit(code);
 202 }
 203
 204 int
 205 main(int argc, char **argv)
 206 {
 207     char *p;
 208     int optidx = 0;
 209
 210     setprogname(argv[0]);
 211     if(getarg(args, num_args, argc, argv, &optidx))
 212         usage(1);
 213     if(help_flag)
 214         usage(0);
 215     if(version_flag) {
 216         print_version(NULL);
 217         exit(0);
 218     }
 219
 220     if(optidx == argc)
 221         usage(1);
 222     filename = argv[optidx];
 223     yyin = fopen(filename, "r");
 224     if(yyin == NULL)
 225         err(1, "%s", filename);
 226
 227
 228     p = strrchr(filename, rk_PATH_DELIM);
 229     if(p)
 230         p++;
 231     else
 232         p = filename;
 233     strlcpy(Basename, p, sizeof(Basename));
 234
 235     Basename[strcspn(Basename, ".")] = '\0';
 236
 237     snprintf(hfn, sizeof(hfn), "%s.h", Basename);
 238     snprintf(cfn, sizeof(cfn), "%s.c", Basename);
 239
 240     yyparse();
 241     if(numerror)
 242         return 1;
 243
 244     return generate();
 245 }