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 #include "compile_et.h"
  36 #include <getarg.h>
  37
  38 #include <roken.h>
  39 #include <err.h>
  40 #include "parse.h"
  41
  42 int numerror;
  43 extern FILE *yyin;
  44
  45 extern void yyparse(void);
  46
  47 long base_id;
  48 int number;
  49 char *prefix;
  50 char *id_str;
  51
  52 char name[128];
  53 char Basename[128];
  54
  55 #ifdef YYDEBUG
  56 extern int yydebug = 1;
  57 #endif
  58
  59 char *filename;
  60 char hfn[128];
  61 char cfn[128];
  62
  63 struct error_code *codes = NULL;
  64
  65 static int
  66 generate_c(void)
  67 {
  68     int n;
  69     struct error_code *ec;
  70
  71     FILE *c_file = fopen(cfn, "w");
  72     if(c_file == NULL)
  73         return 1;
  74
  75     fprintf(c_file, "/* Generated from %s */\n", filename);
  76     if(id_str)
  77         fprintf(c_file, "/* %s */\n", id_str);
  78     fprintf(c_file, "\n");
  79     fprintf(c_file, "#include <stddef.h>\n");
  80     fprintf(c_file, "#include <com_err.h>\n");
  81     fprintf(c_file, "#include \"%s\"\n", hfn);
  82     fprintf(c_file, "\n");
  83     fprintf(c_file, "#define N_(x) (x)\n");
  84     fprintf(c_file, "\n");
  85
  86     fprintf(c_file, "static const char *%s_error_strings[] = {\n", name);
  87
  88     for(ec = codes, n = 0; ec; ec = ec->next, n++) {
  89         while(n < ec->number) {
  90             fprintf(c_file, "\t/* %03d */ \"Reserved %s error (%d)\",\n",
  91                     n, name, n);
  92             n++;
  93
  94         }
  95         fprintf(c_file, "\t/* %03d */ N_(\"%s\"),\n",
  96                 ec->number, ec->string);
  97     }
  98
  99     fprintf(c_file, "\tNULL\n");
 100     fprintf(c_file, "};\n");
 101     fprintf(c_file, "\n");
 102     fprintf(c_file, "#define num_errors %d\n", number);
 103     fprintf(c_file, "\n");
 104     fprintf(c_file,
 105             "void initialize_%s_error_table_r(struct et_list **list)\n",
 106             name);
 107     fprintf(c_file, "{\n");
 108     fprintf(c_file,
 109             "    initialize_error_table_r(list, %s_error_strings, "
 110             "num_errors, ERROR_TABLE_BASE_%s);\n", name, name);
 111     fprintf(c_file, "}\n");
 112     fprintf(c_file, "\n");
 113     fprintf(c_file, "void initialize_%s_error_table(void)\n", name);
 114     fprintf(c_file, "{\n");
 115     fprintf(c_file,
 116             "    init_error_table(%s_error_strings, ERROR_TABLE_BASE_%s, "
 117             "num_errors);\n", name, name);
 118     fprintf(c_file, "}\n");
 119
 120     fclose(c_file);
 121     return 0;
 122 }
 123
 124 static int
 125 generate_h(void)
 126 {
 127     struct error_code *ec;
 128     char fn[128];
 129     FILE *h_file = fopen(hfn, "w");
 130     char *p;
 131
 132     if(h_file == NULL)
 133         return 1;
 134
 135     snprintf(fn, sizeof(fn), "__%s__", hfn);
 136     for(p = fn; *p; p++)
 137         if(!isalnum((unsigned char)*p))
 138             *p = '_';
 139
 140     fprintf(h_file, "/* Generated from %s */\n", filename);
 141     if(id_str)
 142         fprintf(h_file, "/* %s */\n", id_str);
 143     fprintf(h_file, "\n");
 144     fprintf(h_file, "#ifndef %s\n", fn);
 145     fprintf(h_file, "#define %s\n", fn);
 146     fprintf(h_file, "\n");
 147     fprintf(h_file, "struct et_list;\n");
 148     fprintf(h_file, "\n");
 149     fprintf(h_file,
 150             "void initialize_%s_error_table_r(struct et_list **);\n",
 151             name);
 152     fprintf(h_file, "\n");
 153     fprintf(h_file, "void initialize_%s_error_table(void);\n", name);
 154     fprintf(h_file, "#define init_%s_err_tbl initialize_%s_error_table\n",
 155             name, name);
 156     fprintf(h_file, "\n");
 157     fprintf(h_file, "typedef enum %s_error_number{\n", name);
 158
 159     for(ec = codes; ec; ec = ec->next) {
 160         fprintf(h_file, "\t%s = %ld%s\n", ec->name, base_id + ec->number,
 161                 (ec->next != NULL) ? "," : "");
 162     }
 163
 164     fprintf(h_file, "} %s_error_number;\n", name);
 165     fprintf(h_file, "\n");
 166     fprintf(h_file, "#define ERROR_TABLE_BASE_%s %ld\n", name, base_id);
 167     fprintf(h_file, "\n");
 168     fprintf(h_file, "#define COM_ERR_BINDDOMAIN_%s \"heim_com_err%ld\"\n", name, base_id);
 169     fprintf(h_file, "\n");
 170     fprintf(h_file, "#endif /* %s */\n", fn);
 171
 172
 173     fclose(h_file);
 174     return 0;
 175 }
 176
 177 static int
 178 generate(void)
 179 {
 180     return generate_c() || generate_h();
 181 }
 182
 183 int version_flag;
 184 int help_flag;
 185 struct getargs args[] = {
 186     { "version", 0, arg_flag, &version_flag },
 187     { "help", 0, arg_flag, &help_flag }
 188 };
 189 int num_args = sizeof(args) / sizeof(args[0]);
 190
 191 static void
 192 usage(int code)
 193 {
 194     arg_printusage(args, num_args, NULL, "error-table");
 195     exit(code);
 196 }
 197
 198 int
 199 main(int argc, char **argv)
 200 {
 201     char *p;
 202     int optidx = 0;
 203
 204     setprogname(argv[0]);
 205     if(getarg(args, num_args, argc, argv, &optidx))
 206         usage(1);
 207     if(help_flag)
 208         usage(0);
 209     if(version_flag) {
 210         print_version(NULL);
 211         exit(0);
 212     }
 213
 214     if(optidx == argc)
 215         usage(1);
 216     filename = argv[optidx];
 217     yyin = fopen(filename, "r");
 218     if(yyin == NULL)
 219         err(1, "%s", filename);
 220
 221
 222     p = strrchr(filename, '/');
 223     if(p)
 224         p++;
 225     else
 226         p = filename;
 227     strlcpy(Basename, p, sizeof(Basename));
 228
 229     Basename[strcspn(Basename, ".")] = '\0';
 230
 231     snprintf(hfn, sizeof(hfn), "%s.h", Basename);
 232     snprintf(cfn, sizeof(cfn), "%s.c", Basename);
 233
 234     yyparse();
 235     if(numerror)
 236         return 1;
 237
 238     return generate();
 239 }