#include <stdio.h>
#include <stdlib.h>
+#include <stdarg.h>
#include <string.h>
#include <getopt.h>
#include <time.h>
{
{ "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 }
-
};
struct
char zserial[7]; /* YYMMDD */
} Config;
-void wrong_arg()
+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);
}
"--version Display program version and exit\n"
"--help Display this help\n"
"\n"
- "--zversion (accepts numbers 1 - 8, defaults to 1 if not specified)\n"
+ "--zversion (accepts numbers 1 - 8, defaults to 6 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"
*dest = n;
return;
}
- fprintf(stderr, "Wrong %s value %s, must be integer between %d and %d\n",
- name, optarg, min, max);
- wrong_arg();
+ wrong_arg("Wrong %s value %s, must be integer between %d and %d\n",
+ name, optarg, min, max);
}
void parse_zserial(void)
char *p = optarg;
while (*p && isalnum(*p))
p++;
- if (!*p) /* ..optarg contains alphanumeric only? */
+ if (!*p) /* ..optarg contains alphanumeric only? */
{
strncpy(Config.zserial, optarg, sizeof(Config.zserial));
return;
}
}
- fprintf(stderr, "Wrong zserial value %s, must be 6 ascii characters\n", optarg);
- wrong_arg();
+ 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 main(int argc, char *argv[], char *envp[])
{
+ const char *output_file = NULL;
+ int i;
+
fill_config();
int opt = 0;
- while ((opt = getopt_long (argc, argv, "hV", long_options, NULL)) != -1)
+ while ((opt = getopt_long (argc, argv, "hVo:", long_options, NULL)) != -1)
{
switch(opt)
{
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;
parse_zserial();
break;
default :
- wrong_arg();
+ 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"