* main.c
*
* Copyright (C) 2015 Alexander Andrejevic <theflash AT sdf DOT lonestar DOT org>
+ * Copyright (C) 2015 Jason Self <j@jxself.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* along with this program. If not, see <http://www.gnu.org/licenses/>
*/
+#include <stdio.h>
#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <getopt.h>
+#include <time.h>
+#include <ctype.h>
+
+#include "config.h"
+
+const int DEFAULT_ZVERSION = 6;
+
+enum { ZVERSION = 11, ZORKID, ZSERIAL };
+
+enum { FAIL = -1, OK = 0, NEED_RESTART = 1 };
+
+static struct option const long_options[] =
+{
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'V' },
+ { "output", required_argument, NULL, 'o' },
+ { "zversion", required_argument, NULL, ZVERSION },
+ { "zorkid", required_argument, NULL, ZORKID },
+ { "serial", required_argument, NULL, ZSERIAL },
+ { NULL, 0, NULL, 0 }
+};
+
+typedef struct {
+ int todo;
+} Opcode_dict;
+
+struct
+{
+ int zversion; /* 0 - 8 */
+ int zorkid; /* 0 - 65535 */
+ char zserial[7]; /* YYMMDD */
+ Opcode_dict *opcode_dict;
+} Config;
+
+void wrong_arg(const char *err, ...)
+{
+ if (err) {
+ va_list ap;
+ va_start(ap, err);
+ vfprintf(stderr, err, ap);
+ va_end(ap);
+ }
+ fprintf(stderr, "Try `" PACKAGE_NAME " --help' for more information.\n");
+ exit(1);
+}
+
+void print_version()
+{
+ printf( PACKAGE_STRING "\n"
+ "License AGPLv3+: GNU AGPL version 3 or later\n"
+ "<http://gnu.org/licenses/agpl.html>\n"
+ "This is free software: you are free to change and redistribute it.\n"
+ "There is NO WARRANTY, to the extent permitted by law.\n"
+ );
+ exit(0);
+}
+
+void print_usage(int failed)
+{
+ printf("Usage: " PACKAGE_NAME " [OPTION...] [FILES...]\n"
+ "\n"
+ "--version Display program version and exit\n"
+ "--help Display this help\n"
+ "\n"
+ "--zversion (accepts numbers 1 - 8, defaults to %d if not specified)\n"
+ "--zorkid (integer between 0 and 65535, defaults to 0 if not specified)\n"
+ "--serial (six characters of ASCII, defaults to current date\n"
+ " in the form YYMMDD if not specified)\n",
+ DEFAULT_ZVERSION
+ );
+ exit(failed);
+}
+
+void fill_zserial(void)
+{
+ time_t t;
+ struct tm *timeinfo;
+ time (&t);
+ timeinfo = localtime(&t);
+ strftime (Config.zserial, sizeof(Config.zserial), "%y%m%d", timeinfo);
+}
+
+void fill_config(void)
+{
+ bzero(&Config, sizeof(Config));
+ Config.zversion = DEFAULT_ZVERSION;
+ fill_zserial();
+}
+
+void parse_intarg(int *dest, const char name[], int min, int max, int defval)
+{
+ if (!optarg) {
+ *dest = defval;
+ return;
+ }
+ int n = atoi(optarg);
+ if (n >= min && n <= max) {
+ *dest = n;
+ return;
+ }
+ wrong_arg("Wrong %s value %s, must be integer between %d and %d\n",
+ name, optarg, min, max);
+}
+
+void parse_zserial(void)
+{
+ if (!optarg) {
+ fill_zserial();
+ return;
+ }
+ size_t n = strlen(optarg);
+ if (n == sizeof(Config.zserial) - 1) {
+ char *p = optarg;
+ while (*p && isalnum(*p))
+ p++;
+ if (!*p) { /* ..optarg contains alphanumeric only? */
+ strncpy(Config.zserial, optarg, sizeof(Config.zserial));
+ return;
+ }
+ }
+ wrong_arg("Wrong zserial value %s, must be 6 ascii characters\n", optarg);
+}
+
+void new_file_suffix(char *result, size_t maxlen, const char *src, const char *newsuffix)
+{
+ strncpy(result, src, maxlen);
+ char *p = strrchr(result, '.');
+ if (p && strchr(p, '/'))
+ p = NULL;
+ if (p) {
+ strncpy(p, newsuffix, maxlen - (p - result));
+ } else {
+ strncat(result, newsuffix, maxlen);
+ }
+ result[maxlen] = 0;
+}
+
+char *build_output_filename(const char basename[], const char *suffix)
+{
+ int n = strlen(basename) + strlen(suffix);
+ char *ofile = malloc(n + 1); /* todo!!! check for NULL. free. */
+ new_file_suffix(ofile, n, basename, suffix);
+ return ofile;
+}
+
+int init_assembly(void)
+{
+ /* TODO */
+ return OK;
+}
+
+int assembly(void)
+{
+ /* TODO */
+ return OK;
+}
int main(int argc, char *argv[], char *envp[])
{
- // TODO: Everything :)
- return EXIT_SUCCESS;
+ const char *output_file = NULL;
+ int i;
+
+ fill_config();
+
+ int opt = 0;
+ while ((opt = getopt_long (argc, argv, "hVo:", long_options, NULL)) != -1) {
+ switch(opt) {
+ case 'h' : print_usage(0);
+ case 'V' : print_version();
+ case 'o' : if (output_file) wrong_arg("Output file must be given once\n");
+ output_file = optarg;
+ break;
+ case ZVERSION: parse_intarg(&Config.zversion, "zversion", 1, 8, 1); break;
+ case ZORKID : parse_intarg(&Config.zorkid, "zorkid", 0, 0xFFFF, 0); break;
+ case ZSERIAL : parse_zserial(); break;
+ default : wrong_arg(0);
+ }
+ }
+
+ int first_input_file = optind;
+ if (first_input_file >= argc)
+ wrong_arg("Missing input file\n");
+ if (!output_file)
+ output_file = build_output_filename(argv[first_input_file], ".dat");
+
+ // TODO: Everything :)
+
+ printf("Input files:\n");
+ for (i = optind; i < argc; i++)
+ printf("\t%s\n", argv[i]);
+
+ printf("Output file: %s\n\n", output_file);
+
+ printf("Config:\n"
+ "- ZVersion: %d\n"
+ "- ZorkID: %d\n"
+ "- ZSerial: %s\n",
+ Config.zversion, Config.zorkid, Config.zserial
+ );
+
+ init_opcodes(Config.zversion, 0);
+
+ while(init_assembly() == OK && assembly() == NEED_RESTART);
+
+ /* TODO! List global symbols */
+ /* TODO! Find abbreviations */
+
+ return 0;
}
projects / zilutils.git / blobdiff