/*
 * Copyright (c) 1997-2005 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.
 */

#include "gen_locl.h"
#include <getarg.h>
#include "lex.h"

RCSID("$Id$");

extern FILE *yyin;

static getarg_strings preserve;
static getarg_strings seq;

int
preserve_type(const char *p)
{
    int i;
    for (i = 0; i < preserve.num_strings; i++)
        if (strcmp(preserve.strings[i], p) == 0)
            return 1;
    return 0;
}

int
seq_type(const char *p)
{
    int i;
    for (i = 0; i < seq.num_strings; i++)
        if (strcmp(seq.strings[i], p) == 0)
            return 1;
    return 0;
}

int support_ber;
int template_flag;
int rfc1510_bitstring;
int one_code_file;
char *option_file;
int version_flag;
int help_flag;
struct getargs args[] = {
    { "template", 0, arg_flag, &template_flag },
    { "encode-rfc1510-bit-string", 0, arg_flag, &rfc1510_bitstring },
    { "decode-dce-ber", 0, arg_flag, &support_ber },
    { "support-ber", 0, arg_flag, &support_ber },
    { "preserve-binary", 0, arg_strings, &preserve },
    { "sequence", 0, arg_strings, &seq },
    { "one-code-file", 0, arg_flag, &one_code_file },
    { "option-file", 0, arg_string, &option_file },
    { "version", 0, arg_flag, &version_flag },
    { "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, "[asn1-file [name]]");
    exit(code);
}

int error_flag;

int
main(int argc, char **argv)
{
    int ret;
    const char *file;
    const char *name = NULL;
    int optidx = 0;
    char **arg = NULL;
    size_t len = 0, i;

    setprogname(argv[0]);
    if(getarg(args, num_args, argc, argv, &optidx))
        usage(1);
    if(help_flag)
        usage(0);
    if(version_flag) {
        print_version(NULL);
        exit(0);
    }
    if (argc == optidx) {
        file = "stdin";
        name = "stdin";
        yyin = stdin;
    } else {
        file = argv[optidx];
        yyin = fopen (file, "r");
        if (yyin == NULL)
            err (1, "open %s", file);
        if (argc == optidx + 1) {
            char *p;
            name = estrdup(file);
            p = strrchr(name, '.');
            if (p)
                *p = '\0';
        } else
            name = argv[optidx + 1];
    }

    /*
     * Parse extra options file
     */
    if (option_file) {
        char buf[1024];
        FILE *opt;

        opt = fopen(option_file, "r");
        if (opt == NULL) {
            perror("open");
            exit(1);
        }

        arg = calloc(2, sizeof(arg[0]));
        if (arg == NULL) {
            perror("calloc");
            exit(1);
        }
        arg[0] = option_file;
        arg[1] = NULL;
        len = 1;

        while (fgets(buf, sizeof(buf), opt) != NULL) {
            buf[strcspn(buf, "\n\r")] = '\0';

            arg = realloc(arg, (len + 2) * sizeof(arg[0]));
            if (arg == NULL) {
                perror("malloc");
                exit(1);
            }
            arg[len] = strdup(buf);
            if (arg[len] == NULL) {
                perror("strdup");
                exit(1);
            }
            arg[len + 1] = NULL;
            len++;
        }
        fclose(opt);

        optidx = 0;
        if(getarg(args, num_args, len, arg, &optidx))
            usage(1);

        if (len != optidx) {
            fprintf(stderr, "extra args");
            exit(1);
        }
    }


    init_generate (file, name);

    if (one_code_file)
        generate_header_of_codefile(name);

    initsym ();
    ret = yyparse ();
    if(ret != 0 || error_flag != 0)
        exit(1);
    close_generate ();
    if (argc != optidx)
        fclose(yyin);

    if (one_code_file)
        close_codefile();

    if (arg) {
        for (i = 1; i < len; i++)
            free(arg[i]);
        free(arg);
    }

    return 0;
}