lib/com_err/compile_et.c

   1 /*
   2  * Copyright (c) 1998-2002 Kungliga Tekniska Högskolan
   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
  34 #undef ROKEN_RENAME
  35
  36 #include "config.h"
  37
  38 #include "compile_et.h"
  39 #include <getarg.h>
  40
  41 #include <roken.h>
  42 #include <err.h>
  43 #include "parse.h"
  44
  45 int numerror;
  46 extern FILE *yyin;
  47
  48 int yyparse(void);
  49
  50 long base_id;
  51 int number;
  52 char *prefix;
  53 char *id_str;
  54
  55 char name[128];
  56 char Basename[128];
  57
  58 #ifdef YYDEBUG
  59 extern int yydebug;
  60 int yydebug = 1;
  61 #endif
  62
  63 char *filename;
  64 char hfn[130];
  65 char cfn[130];
  66
  67 struct error_code *codes = NULL;
  68
  69 static int
  70 generate_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     fprintf(c_file, "#define N_(x) (x)\n");
  88     fprintf(c_file, "\n");
  89
  90     fprintf(c_file, "static const char *const %s_error_strings[] = {\n", name);
  91
  92     for(ec = codes, n = 0; ec; ec = ec->next, n++) {
  93         while(n < ec->number) {
  94             fprintf(c_file, "\t/* %03d */ \"Reserved %s error (%d)\",\n",
  95                     n, name, n);
  96             n++;
  97
  98         }
  99         fprintf(c_file, "\t/* %03d */ N_(\"%s\"),\n",
 100                 ec->number, ec->string);
 101     }
 102
 103     fprintf(c_file, "\tNULL\n");
 104     fprintf(c_file, "};\n");
 105     fprintf(c_file, "\n");
 106     fprintf(c_file, "#define num_errors %d\n", number);
 107     fprintf(c_file, "\n");
 108     fprintf(c_file,
 109             "void initialize_%s_error_table_r(struct et_list **list)\n",
 110             name);
 111     fprintf(c_file, "{\n");
 112     fprintf(c_file,
 113             "    initialize_error_table_r(list, %s_error_strings, "
 114             "num_errors, ERROR_TABLE_BASE_%s);\n", name, name);
 115     fprintf(c_file, "}\n");
 116     fprintf(c_file, "\n");
 117     fprintf(c_file, "void initialize_%s_error_table(void)\n", name);
 118     fprintf(c_file, "{\n");
 119     fprintf(c_file,
 120             "    init_error_table(%s_error_strings, ERROR_TABLE_BASE_%s, "
 121             "num_errors);\n", name, name);
 122     fprintf(c_file, "}\n");
 123
 124     fclose(c_file);
 125     return 0;
 126 }
 127
 128 static int
 129 generate_h(void)
 130 {
 131     struct error_code *ec;
 132     char fn[134];
 133     FILE *h_file = fopen(hfn, "w");
 134     char *p;
 135
 136     if(h_file == NULL)
 137         return 1;
 138
 139     snprintf(fn, sizeof(fn), "__%s__", hfn);
 140     for(p = fn; *p; p++)
 141         if(!isalnum((unsigned char)*p))
 142             *p = '_';
 143
 144     fprintf(h_file, "/* Generated from %s */\n", filename);
 145     if(id_str)
 146         fprintf(h_file, "/* %s */\n", id_str);
 147     fprintf(h_file, "\n");
 148     fprintf(h_file, "#ifndef %s\n", fn);
 149     fprintf(h_file, "#define %s\n", fn);
 150     fprintf(h_file, "\n");
 151     fprintf(h_file, "struct et_list;\n");
 152     fprintf(h_file, "\n");
 153     fprintf(h_file,
 154             "void initialize_%s_error_table_r(struct et_list **);\n",
 155             name);
 156     fprintf(h_file, "\n");
 157     fprintf(h_file, "void initialize_%s_error_table(void);\n", name);
 158     fprintf(h_file, "#define init_%s_err_tbl initialize_%s_error_table\n",
 159             name, name);
 160     fprintf(h_file, "\n");
 161     fprintf(h_file, "typedef enum %s_error_number{\n", name);
 162
 163     for(ec = codes; ec; ec = ec->next) {
 164         fprintf(h_file, "\t%s = %ld%s\n", ec->name, base_id + ec->number,
 165                 (ec->next != NULL) ? "," : "");
 166     }
 167
 168     fprintf(h_file, "} %s_error_number;\n", name);
 169     fprintf(h_file, "\n");
 170     fprintf(h_file, "#define ERROR_TABLE_BASE_%s %ld\n", name, base_id);
 171     fprintf(h_file, "\n");
 172     fprintf(h_file, "#define COM_ERR_BINDDOMAIN_%s \"heim_com_err%ld\"\n", name, base_id);
 173     fprintf(h_file, "\n");
 174     fprintf(h_file, "#endif /* %s */\n", fn);
 175
 176
 177     fclose(h_file);
 178     return 0;
 179 }
 180
 181 static int
 182 generate(void)
 183 {
 184     return generate_c() || generate_h();
 185 }
 186
 187 int version_flag;
 188 int help_flag;
 189 struct getargs args[] = {
 190     { "version", 0, arg_flag, &version_flag, NULL, NULL },
 191     { "help", 0, arg_flag, &help_flag, NULL, NULL }
 192 };
 193 int num_args = sizeof(args) / sizeof(args[0]);
 194
 195 static void
 196 usage(int code)
 197 {
 198     arg_printusage(args, num_args, NULL, "error-table");
 199     exit(code);
 200 }
 201
 202 int
 203 main(int argc, char **argv)
 204 {
 205     char *p;
 206     int optidx = 0;
 207
 208     setprogname(argv[0]);
 209     if(getarg(args, num_args, argc, argv, &optidx))
 210         usage(1);
 211     if(help_flag)
 212         usage(0);
 213     if(version_flag) {
 214         print_version(NULL);
 215         exit(0);
 216     }
 217
 218     if(optidx == argc)
 219         usage(1);
 220     filename = argv[optidx];
 221     yyin = fopen(filename, "r");
 222     if(yyin == NULL)
 223         err(1, "%s", filename);
 224
 225
 226     p = strrchr(filename, rk_PATH_DELIM);
 227     if(p)
 228         p++;
 229     else
 230         p = filename;
 231     strlcpy(Basename, p, sizeof(Basename));
 232
 233     Basename[strcspn(Basename, ".")] = '\0';
 234
 235     snprintf(hfn, sizeof(hfn), "%s.h", Basename);
 236     snprintf(cfn, sizeof(cfn), "%s.c", Basename);
 237
 238     yyparse();
 239     if(numerror)
 240         return 1;
 241
 242     return generate();
 243 }