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 = 1;
  60 #endif
  61
  62 char *filename;
  63 char hfn[128];
  64 char cfn[128];
  65
  66 struct error_code *codes = NULL;
  67
  68 static int
  69 generate_c(void)
  70 {
  71     int n;
  72     struct error_code *ec;
  73
  74     FILE *c_file = fopen(cfn, "w");
  75     if(c_file == NULL)
  76         return 1;
  77
  78     fprintf(c_file, "/* Generated from %s */\n", filename);
  79     if(id_str)
  80         fprintf(c_file, "/* %s */\n", id_str);
  81     fprintf(c_file, "\n");
  82     fprintf(c_file, "#include <stddef.h>\n");
  83     fprintf(c_file, "#include <com_err.h>\n");
  84     fprintf(c_file, "#include \"%s\"\n", hfn);
  85     fprintf(c_file, "\n");
  86     fprintf(c_file, "#define N_(x) (x)\n");
  87     fprintf(c_file, "\n");
  88
  89     fprintf(c_file, "static const char *%s_error_strings[] = {\n", name);
  90
  91     for(ec = codes, n = 0; ec; ec = ec->next, n++) {
  92         while(n < ec->number) {
  93             fprintf(c_file, "\t/* %03d */ \"Reserved %s error (%d)\",\n",
  94                     n, name, n);
  95             n++;
  96
  97         }
  98         fprintf(c_file, "\t/* %03d */ N_(\"%s\"),\n",
  99                 ec->number, ec->string);
 100     }
 101
 102     fprintf(c_file, "\tNULL\n");
 103     fprintf(c_file, "};\n");
 104     fprintf(c_file, "\n");
 105     fprintf(c_file, "#define num_errors %d\n", number);
 106     fprintf(c_file, "\n");
 107     fprintf(c_file,
 108             "void initialize_%s_error_table_r(struct et_list **list)\n",
 109             name);
 110     fprintf(c_file, "{\n");
 111     fprintf(c_file,
 112             "    initialize_error_table_r(list, %s_error_strings, "
 113             "num_errors, ERROR_TABLE_BASE_%s);\n", name, name);
 114     fprintf(c_file, "}\n");
 115     fprintf(c_file, "\n");
 116     fprintf(c_file, "void initialize_%s_error_table(void)\n", name);
 117     fprintf(c_file, "{\n");
 118     fprintf(c_file,
 119             "    init_error_table(%s_error_strings, ERROR_TABLE_BASE_%s, "
 120             "num_errors);\n", name, name);
 121     fprintf(c_file, "}\n");
 122
 123     fclose(c_file);
 124     return 0;
 125 }
 126
 127 static int
 128 generate_h(void)
 129 {
 130     struct error_code *ec;
 131     char fn[128];
 132     FILE *h_file = fopen(hfn, "w");
 133     char *p;
 134
 135     if(h_file == NULL)
 136         return 1;
 137
 138     snprintf(fn, sizeof(fn), "__%s__", hfn);
 139     for(p = fn; *p; p++)
 140         if(!isalnum((unsigned char)*p))
 141             *p = '_';
 142
 143     fprintf(h_file, "/* Generated from %s */\n", filename);
 144     if(id_str)
 145         fprintf(h_file, "/* %s */\n", id_str);
 146     fprintf(h_file, "\n");
 147     fprintf(h_file, "#ifndef %s\n", fn);
 148     fprintf(h_file, "#define %s\n", fn);
 149     fprintf(h_file, "\n");
 150     fprintf(h_file, "struct et_list;\n");
 151     fprintf(h_file, "\n");
 152     fprintf(h_file,
 153             "void initialize_%s_error_table_r(struct et_list **);\n",
 154             name);
 155     fprintf(h_file, "\n");
 156     fprintf(h_file, "void initialize_%s_error_table(void);\n", name);
 157     fprintf(h_file, "#define init_%s_err_tbl initialize_%s_error_table\n",
 158             name, name);
 159     fprintf(h_file, "\n");
 160     fprintf(h_file, "typedef enum %s_error_number{\n", name);
 161
 162     for(ec = codes; ec; ec = ec->next) {
 163         fprintf(h_file, "\t%s = %ld%s\n", ec->name, base_id + ec->number,
 164                 (ec->next != NULL) ? "," : "");
 165     }
 166
 167     fprintf(h_file, "} %s_error_number;\n", name);
 168     fprintf(h_file, "\n");
 169     fprintf(h_file, "#define ERROR_TABLE_BASE_%s %ld\n", name, base_id);
 170     fprintf(h_file, "\n");
 171     fprintf(h_file, "#define COM_ERR_BINDDOMAIN_%s \"heim_com_err%ld\"\n", name, base_id);
 172     fprintf(h_file, "\n");
 173     fprintf(h_file, "#endif /* %s */\n", fn);
 174
 175
 176     fclose(h_file);
 177     return 0;
 178 }
 179
 180 static int
 181 generate(void)
 182 {
 183     return generate_c() || generate_h();
 184 }
 185
 186 int version_flag;
 187 int help_flag;
 188 struct getargs args[] = {
 189     { "version", 0, arg_flag, &version_flag },
 190     { "help", 0, arg_flag, &help_flag }
 191 };
 192 int num_args = sizeof(args) / sizeof(args[0]);
 193
 194 static void
 195 usage(int code)
 196 {
 197     arg_printusage(args, num_args, NULL, "error-table");
 198     exit(code);
 199 }
 200
 201 int
 202 main(int argc, char **argv)
 203 {
 204     char *p;
 205     int optidx = 0;
 206
 207     setprogname(argv[0]);
 208     if(getarg(args, num_args, argc, argv, &optidx))
 209         usage(1);
 210     if(help_flag)
 211         usage(0);
 212     if(version_flag) {
 213         print_version(NULL);
 214         exit(0);
 215     }
 216
 217     if(optidx == argc)
 218         usage(1);
 219     filename = argv[optidx];
 220     yyin = fopen(filename, "r");
 221     if(yyin == NULL)
 222         err(1, "%s", filename);
 223
 224
 225     p = strrchr(filename, rk_PATH_DELIM);
 226     if(p)
 227         p++;
 228     else
 229         p = filename;
 230     strlcpy(Basename, p, sizeof(Basename));
 231
 232     Basename[strcspn(Basename, ".")] = '\0';
 233
 234     snprintf(hfn, sizeof(hfn), "%s.h", Basename);
 235     snprintf(cfn, sizeof(cfn), "%s.c", Basename);
 236
 237     yyparse();
 238     if(numerror)
 239         return 1;
 240
 241     return generate();
 242 }