X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Fmisc.c;h=e412be85952f6febbb39cba65c5311b400dfc850;hb=2fe0fbc2a34fd4b50081f1829931dea3ca2c4c1c;hp=253a8d7fcee20e336a05b27b9b68843987a34c32;hpb=b2a0ff1ddd4430110b331129469dabb8ea7b6ba7;p=rocksndiamonds.git

diff --git a/src/misc.c b/src/misc.c
index 253a8d7f..e412be85 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -17,8 +17,10 @@
 #include <sys/time.h>
 #include <sys/param.h>
 #include <sys/types.h>
+#include <stdarg.h>
 
 #include "misc.h"
+#include "init.h"
 #include "tools.h"
 #include "sound.h"
 #include "random.h"
@@ -73,8 +75,7 @@ static void sleep_milliseconds(unsigned long milliseconds_delay)
     delay.tv_usec = 1000 * (milliseconds_delay % 1000);
 
     if (select(0, NULL, NULL, NULL, &delay) != 0)
-      fprintf(stderr,"%s: in function sleep_milliseconds: select() failed!\n",
-	      progname);
+      Error(ERR_RETURN, "sleep_milliseconds(): select() failed");
   }
 }
 
@@ -187,3 +188,171 @@ void MarkTileDirty(int x, int y)
     redraw_mask |= REDRAW_TILES;
   }
 }
+
+void GetOptions(char *argv[])
+{
+  char **options_left = &argv[1];
+
+  while (*options_left)
+  {
+    char option_str[MAX_OPTION_LEN];
+    char *option = options_left[0];
+    char *next_option = options_left[1];
+    char *option_arg = NULL;
+    int option_len = strlen(option);
+
+    strcpy(option_str, option);			/* copy argument into buffer */
+    option = option_str;
+
+    if (strcmp(option, "--") == 0)		/* stop scanning arguments */
+      break;
+
+    if (option_len >= MAX_OPTION_LEN)
+      Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
+
+    if (strncmp(option, "--", 2) == 0)		/* treat '--' like '-' */
+      option++;
+
+    option_arg = strchr(option, '=');
+    if (option_arg == NULL)			/* no '=' in option */
+      option_arg = next_option;
+    else
+    {
+      *option_arg++ = '\0';			/* cut argument from option */
+      if (*option_arg == '\0')			/* no argument after '=' */
+	Error(ERR_EXIT_HELP, "option '%s' has invalid argument", option_str);
+    }
+
+    option_len = strlen(option);
+
+    if (strcmp(option, "-") == 0)
+      Error(ERR_EXIT_HELP, "unrecognized option '%s'", option);
+    else if (strncmp(option, "-help", option_len) == 0)
+    {
+      printf("Usage: %s [options] [server.name [port]]\n"
+	     "Options:\n"
+	     "  -d, --display machine:0       X server display\n"
+	     "  -l, --levels directory        alternative level directory\n"
+	     "  -n, --network                 network multiplayer game\n"
+	     "  -v, --verbose                 verbose mode\n",
+	     program_name);
+      exit(0);
+    }
+    else if (strncmp(option, "-display", option_len) == 0)
+    {
+      if (option_arg == NULL)
+	Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
+
+      display_name = option_arg;
+      if (option_arg == next_option)
+	options_left++;
+
+      printf("--display == '%s'\n", display_name);
+    }
+    else if (strncmp(option, "-levels", option_len) == 0)
+    {
+      if (option_arg == NULL)
+	Error(ERR_EXIT_HELP, "option '%s' requires an argument", option_str);
+
+      level_directory = option_arg;
+      if (option_arg == next_option)
+	options_left++;
+
+      printf("--levels == '%s'\n", level_directory);
+    }
+    else if (strncmp(option, "-verbose", option_len) == 0)
+    {
+      printf("--verbose\n");
+
+      verbose = TRUE;
+    }
+    else if (*option == '-')
+      Error(ERR_EXIT_HELP, "unrecognized option '%s'", option_str);
+    else if (server_host == NULL)
+    {
+      server_host = *options_left;
+
+      printf("server.name == '%s'\n", server_host);
+    }
+    else if (server_port == 0)
+    {
+      server_port = atoi(*options_left);
+      if (server_port < 1024)
+	Error(ERR_EXIT_HELP, "bad port number '%d'", server_port);
+
+      printf("port == %d\n", server_port);
+    }
+    else
+      Error(ERR_EXIT_HELP, "too many arguments");
+
+    options_left++;
+  }
+}
+
+void Error(int mode, char *format_str, ...)
+{
+  FILE *output_stream = stderr;
+  char *process_name = "";
+
+  if (mode == ERR_EXIT_SOUNDSERVER)
+    process_name = " sound server";
+
+  if (format_str)
+  {
+    va_list ap;
+    char *format_ptr;
+    char *s_value;
+    int i_value;
+    double d_value;
+
+    fprintf(output_stream, "%s%s: ", program_name, process_name);
+
+    va_start(ap, format_str);	/* ap points to first unnamed argument */
+  
+    for(format_ptr=format_str; *format_ptr; format_ptr++)
+    {
+      if (*format_ptr != '%')
+      {
+  	fprintf(output_stream, "%c", *format_ptr);
+  	continue;
+      }
+  
+      switch(*++format_ptr)
+      {
+  	case 'd':
+  	  i_value = va_arg(ap, int);
+  	  fprintf(output_stream, "%d", i_value);
+  	  break;
+  
+  	case 'f':
+  	  d_value = va_arg(ap, double);
+  	  fprintf(output_stream, "%f", d_value);
+  	  break;
+  
+  	case 's':
+  	  s_value = va_arg(ap, char *);
+  	  fprintf(output_stream, "%s", s_value);
+  	  break;
+  
+  	default:
+  	  fprintf(stderr, "\n%s: Error(): invalid format string: %s\n",
+		  program_name, format_str);
+	  CloseAllAndExit(10);
+      }
+    }
+
+    va_end(ap);
+  
+    fprintf(output_stream, "\n");
+  }
+  
+  if (mode == ERR_EXIT_HELP)
+    fprintf(output_stream, "%s: Try option '--help' for more information.\n",
+	    program_name);
+
+  if (mode != ERR_RETURN)
+  {
+    fprintf(output_stream, "%s%s: aborting\n", program_name, process_name);
+    CloseAllAndExit(1);
+  }
+}