freebsd-dev/contrib/com_err/compile_et.c

233 lines
6.0 KiB
C

/*
* Copyright (c) 1998-2002 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $FreeBSD$ */
#undef ROKEN_RENAME
#include "compile_et.h"
#include <getarg.h>
#if 0
RCSID("$Id: compile_et.c 15426 2005-06-16 19:21:42Z lha $");
#endif
#include <err.h>
#include "parse.h"
int numerror;
extern FILE *yyin;
extern void yyparse(void);
long base_id;
int number;
char *prefix;
char *id_str;
char name[128];
char Basename[128];
#ifdef YYDEBUG
extern int yydebug = 1;
#endif
char *filename;
char hfn[128];
char cfn[128];
struct error_code *codes = NULL;
static int
generate_c(void)
{
int n;
struct error_code *ec;
FILE *c_file = fopen(cfn, "w");
if(c_file == NULL)
return 1;
fprintf(c_file, "/* Generated from %s */\n", filename);
if(id_str)
fprintf(c_file, "/* %s */\n", id_str);
fprintf(c_file, "\n");
fprintf(c_file, "#include <stddef.h>\n");
fprintf(c_file, "#include <com_err.h>\n");
fprintf(c_file, "#include \"%s\"\n", hfn);
fprintf(c_file, "\n");
fprintf(c_file, "static const char *%s_error_strings[] = {\n", name);
for(ec = codes, n = 0; ec; ec = ec->next, n++) {
while(n < ec->number) {
fprintf(c_file, "\t/* %03d */ \"Reserved %s error (%d)\",\n",
n, name, n);
n++;
}
fprintf(c_file, "\t/* %03d */ \"%s\",\n", ec->number, ec->string);
}
fprintf(c_file, "\tNULL\n");
fprintf(c_file, "};\n");
fprintf(c_file, "\n");
fprintf(c_file, "#define num_errors %d\n", number);
fprintf(c_file, "\n");
fprintf(c_file,
"void initialize_%s_error_table_r(struct et_list **list)\n",
name);
fprintf(c_file, "{\n");
fprintf(c_file,
" initialize_error_table_r(list, %s_error_strings, "
"num_errors, ERROR_TABLE_BASE_%s);\n", name, name);
fprintf(c_file, "}\n");
fprintf(c_file, "\n");
fprintf(c_file, "void initialize_%s_error_table(void)\n", name);
fprintf(c_file, "{\n");
fprintf(c_file,
" init_error_table(%s_error_strings, ERROR_TABLE_BASE_%s, "
"num_errors);\n", name, name);
fprintf(c_file, "}\n");
fclose(c_file);
return 0;
}
static int
generate_h(void)
{
struct error_code *ec;
char fn[128];
FILE *h_file = fopen(hfn, "w");
char *p;
if(h_file == NULL)
return 1;
snprintf(fn, sizeof(fn), "__%s__", hfn);
for(p = fn; *p; p++)
if(!isalnum((unsigned char)*p))
*p = '_';
fprintf(h_file, "/* Generated from %s */\n", filename);
if(id_str)
fprintf(h_file, "/* %s */\n", id_str);
fprintf(h_file, "\n");
fprintf(h_file, "#ifndef %s\n", fn);
fprintf(h_file, "#define %s\n", fn);
fprintf(h_file, "\n");
fprintf(h_file, "struct et_list;\n");
fprintf(h_file, "\n");
fprintf(h_file,
"void initialize_%s_error_table_r(struct et_list **);\n",
name);
fprintf(h_file, "\n");
fprintf(h_file, "void initialize_%s_error_table(void);\n", name);
fprintf(h_file, "#define init_%s_err_tbl initialize_%s_error_table\n",
name, name);
fprintf(h_file, "\n");
fprintf(h_file, "typedef enum %s_error_number{\n", name);
for(ec = codes; ec; ec = ec->next) {
fprintf(h_file, "\t%s = %ld%s\n", ec->name, base_id + ec->number,
(ec->next != NULL) ? "," : "");
}
fprintf(h_file, "} %s_error_number;\n", name);
fprintf(h_file, "\n");
fprintf(h_file, "#define ERROR_TABLE_BASE_%s %ld\n", name, base_id);
fprintf(h_file, "\n");
fprintf(h_file, "#endif /* %s */\n", fn);
fclose(h_file);
return 0;
}
static int
generate(void)
{
return generate_c() || generate_h();
}
int help_flag;
struct getargs args[] = {
{ "help", 0, arg_flag, &help_flag }
};
int num_args = sizeof(args) / sizeof(args[0]);
static void
usage(int code)
{
arg_printusage(args, num_args, NULL, "error-table");
exit(code);
}
int
main(int argc, char **argv)
{
char *p;
int optidx = 0;
setprogname(argv[0]);
if(getarg(args, num_args, argc, argv, &optidx))
usage(1);
if(help_flag)
usage(0);
if(optidx == argc)
usage(1);
filename = argv[optidx];
yyin = fopen(filename, "r");
if(yyin == NULL)
err(1, "%s", filename);
p = strrchr(filename, '/');
if(p)
p++;
else
p = filename;
strlcpy(Basename, p, sizeof(Basename));
Basename[strcspn(Basename, ".")] = '\0';
snprintf(hfn, sizeof(hfn), "%s.h", Basename);
snprintf(cfn, sizeof(cfn), "%s.c", Basename);
yyparse();
if(numerror)
return 1;
return generate();
}