Fixes. Added ELF clean checker.

docs/changelog

@@ -2,7 +2,15 @@
 
 All notable changes to this project will be documented in this file.
 
-## [2.0.2]
+## [2.0.3]
+### Added
+    - Display a warning when loading an Elf that is not clean.
+    - Added to the lib folder, common libraries that are usually missing.
+### Fixed
+    - Missing patch in HOD-EX.
+    - Alows to run a game that does not support Card reader if option enabled in conf file.
+
+## [2.0.2] 2025-01-27
 ### Added
     - InitialD 5 SBRY added.
     - HOD4 SP CPU Frequency fix.

src/lindbergh/card_reader.c

@@ -38,25 +38,28 @@ void initWriteCmd(int fdIdx)
 
 int initCardReader()
 {
-    initReadCmd(0);
-    initReadCmd(1);
-    initWriteCmd(0);
-    initWriteCmd(1);
-
     uint32_t gId = getConfig()->crc32;
     if (gId != VIRTUA_TENNIS_3 && gId != VIRTUA_TENNIS_3_TEST && gId != VIRTUA_TENNIS_3_REVA && gId != VIRTUA_TENNIS_3_REVA_TEST &&
         gId != VIRTUA_TENNIS_3_REVB && gId != VIRTUA_TENNIS_3_REVB_TEST && gId != VIRTUA_TENNIS_3_REVC &&
         gId != VIRTUA_TENNIS_3_REVC_TEST && gId != R_TUNED)
     {
-        printf("Game does not support Card Reader, please disable the card reader emulation in the config file.\n");
-        return -1;
+        printf("Warning: This Game does not support Card Reader, please disable the card reader emulation in the config file.\n");
+        printf("         I will disable the card reader for you.\n");
+        EmulatorConfig *config = getConfig();
+        config->emulateCardreader = 0;
+        return 0;
     }
     if (getConfig()->emulateCardreader && getConfig()->emulateDriveboard && gId != R_TUNED)
     {
-        printf("Game does not support Card Reader and Driver Board emulation enabled at the same time.\n");
+        printf("Warning: This Game does not support Card Reader and Driver Board emulation enabled at the same time.\n");
         printf("Please disable Drive Board emulations in the config file.\n");
         return -1;
     }
+
+    initReadCmd(0);
+    initReadCmd(1);
+    initWriteCmd(0);
+    initWriteCmd(1);
     return 0;
 }
 

src/lindbergh/config.h

@@ -2,6 +2,7 @@
 #define CONFIG_H
 
 #include <stdint.h>
+#include <sys/types.h>
 
 #define MAX_PATH_LENGTH 1024
 #define INPUT_STRING_LENGTH 256
@@ -71,7 +72,6 @@
 #define VIRTUA_FIGHTER_5_REVB 0x8953bd52                     // DVP-0008B
 #define VIRTUA_FIGHTER_5_REVE 0x4c2edbf6                     // DVP-0008E
 #define VIRTUA_FIGHTER_5_EXPORT 0xec474630                   // DVP-0043
-#define VIRTUA_FIGHTER_5_FINAL_SHOWDOWN 0x48                 // DVP-5019 or does not exist
 #define VIRTUA_FIGHTER_5_FINAL_SHOWDOWN_REVA 0xbae2be62      // DVP-5019A
 #define VIRTUA_FIGHTER_5_FINAL_SHOWDOWN_REVB 0x7cee1d81      // DVP-5020
 #define VIRTUA_FIGHTER_5_FINAL_SHOWDOWN_REVB_6000 0x34c0d02  // DVP-5020 ver 6.00 (Weird public version)
@@ -279,6 +279,7 @@ typedef struct
     int borderEnabled;
 } EmulatorConfig;
 
+uint32_t get_crc32(const char *s, ssize_t n);
 KeyMapping getDefaultKeymap();
 int initConfig(const char* configFilePath);
 EmulatorConfig *getConfig();

src/lindbergh/hook.c

@@ -30,8 +30,6 @@
 #include <ifaddrs.h>
 #include <dirent.h>
 
-#include "hook.h"
-
 #include "baseboard.h"
 #include "config.h"
 #include "driveboard.h"
@@ -305,15 +303,6 @@ int open(const char *pathname, int flags, ...)
 
     int (*_open)(const char *pathname, int flags, ...) = dlsym(RTLD_NEXT, "open");
 
-    // Attempt to open /dev/dsp and /dev/dsp1
-    if (strcmp(pathname, "/dev/dsp") == 0) {
-        int dspFileDescriptor = _open("/dev/dsp", flags, mode);
-        if(dspFileDescriptor != -1)
-            return dspFileDescriptor;
-        
-        return _open("/dev/dsp1", flags, mode);
-    }
-
     if (strcmp(pathname, "/dev/lbb") == 0)
     {
         hooks[BASEBOARD] = _open(HOOK_FILE_NAME, flags, mode);
@@ -1210,28 +1199,6 @@ int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen)
     return _connect(sockfd, addr, addrlen);
 }
 
-/**
- * Function to calculate CRC32 checksum in memory.
- */
-uint32_t get_crc32(const char *s, size_t n)
-{
-    uint32_t crc = 0xFFFFFFFF;
-
-    for (size_t i = 0; i < n; i++)
-    {
-        char ch = s[i];
-        for (size_t j = 0; j < 8; j++)
-        {
-            uint32_t b = (ch ^ crc) & 1;
-            crc >>= 1;
-            if (b)
-                crc = crc ^ 0xEDB88320;
-            ch >>= 1;
-        }
-    }
-    return ~crc;
-}
-
 /**
  * Callback function to get the offset and size of the execution program in memory of the ELF we hook to.
  */

src/lindbergh/hook.h

@@ -1,4 +0,0 @@
-#include <stdint.h>
-#include <stddef.h>
-
-uint32_t get_crc32(const char *s, size_t  n);

src/lindbergh/lindbergh.c

@@ -1,5 +1,4 @@
 #include <dirent.h>
-#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -41,6 +40,151 @@ char *games[] = {"main.exe",
                   "a.elf",
                  "END"};
 
+/**
+ * An array containin clean games elf's CRC32
+ */
+uint32_t cleanElfCRC32[] = {
+    0x51C4D2F6, // DVP-0003A | hod4M.elf
+    0x1348BCA8, // DVP-0003A | hod4testM.elf
+    0x0AAE384E, // DVP-0003B | hod4M.elf
+    0x352AA797, // DVP-0003B | hod4testM.elf
+    0x42EED61A, // DVP-0003C | hod4M.elf
+    0x6DA6E511, // DVP-0003C | hod4testM.elf
+    0x0E4BF4B1, // DVP-0005  | vt3_Lindbergh
+    0x9E48AB5B, // DVP-0005  | vt3_testmode
+    0xE4C64D01, // DVP-0005A | vt3_Lindbergh
+    0x9C0E77E5, // DVP-0005A | vt3_testmode
+    0xA4BDB9E2, // DVP-0005B | vt3_Lindbergh
+    0x74E25472, // DVP-0005B | vt3_testmode
+    0x987AE3FF, // DVP-0005C | vt3_Lindbergh
+    0x1E4271A4, // DVP-0005C | vt3_testmode
+    0xD409B70C, // DVP-0008  | vf5
+    0x08EBC0DB, // DVP-0008A | vf5
+    0xA47FBA2D, // DVP-0008B | vf5
+    0x8CA46167, // DVP-0008C | vf5
+    0x75946796, // DVP-0008E | vf5
+    0x2C8F5D57, // DVP-0009  | abc
+    0x13D90755, // DVP-0009A | abc
+    0x633AD6FB, // DVP-0009B | abc
+    0xD39825A8, // DVP-0010  | hod4M.elf
+    0x0745CF0A, // DVP-0010  | hod4testM.elf
+    0x13E59583, // DVP-0010B | hod4M.elf
+    0x302FEB00, // DVP-0010B | hod4testM.elf
+    0x04E08C99, // DVP-0011  | lgj_final
+    0x0C3D3CC3, // DVP-0011A | lgj_final
+    0xD9660B2E, // DVP-0015  | JenTest
+    0x821C3404, // DVP-0015  | Jennifer
+    0x13AF8581, // DVP-0015A | JenTest
+    0xB2CE9B23, // DVP-0015A | Jennifer
+    0xCC32DEAE, // DVP-0018  | abc
+    0x17114BC1, // DVP-0018A | abc
+    0x22905D60, // DVP-0019A | id4.elf
+    0x43582D48, // DVP-0019B | id4.elf
+    0x2D2A18C1, // DVP-0019C | id4.elf
+    0x9BFD0D98, // DVP-0019D | id4.elf
+    0x9CF9BBCC, // DVP-0019G | id4.elf
+    0xFA0F6AB0, // DVP-0027A | apacheM.elf
+    0x9D414D18, // DVP-0029A | vsg
+    0xC345E213, // DVP-0030B | id4.elf
+    0x98E6A516, // DVP-0030C | id4.elf
+    0xF67365C9, // DVP-0030D | id4.elf
+    0x8BDD31BA, // DVP-0031  | abc
+    0x3DF37873, // DVP-0031A | abc
+    0xDD8BB792, // DVP-0036A | lgjsp_app
+    0xB0A96E34, // DVP-0043  | vf5
+    0xF99E5635, // DVP-0044  | drive.elf
+    0x4143F6B4, // DVP-0048A | main.exe
+    0x653BC83B, // DVP-0057  | a.elf
+    0x04D88552, // DVP-0057B | a.elf
+    0x089D6051, // DVP-0060  | dsr
+    0x317F3B90, // DVP-0063  | hodexRI.elf
+    0x3A5EEC69, // DVP-0063  | hodextestR.elf
+    0x81E02850, // DVP-0069  | ramboM.elf
+    0xE4F202BB, // DVP-0070A | id5.elf
+    0x2E6732A3, // DVP-0070F | id5.elf
+    0xF99A3CDB, // DVP-0075  | id5.elf
+    0x05647A8E, // DVP-0079  | hummer_Master.elf
+    0x4442EA15, // DVP-0083  | hummer_Master.elf
+    0x8DF6BBF9, // DVP-0084  | id5.elf
+    0x2AF8004E, // DVP-0084A | id5.elf
+    0xB95528F4, // DVP-5004  | vf5
+    0x012E4898, // DVP-5004D | vf5
+    0x74465F9F, // DVP-5004G | vf5
+    0x75B48E22, // DVP-5007  | chopperM.elf
+    0xFCB9D941, // DVP-5019A | vf5
+    0xAB70901C, // DVP-5020  | vf5
+    0x6BAA510D, // DVP-5020  | vf5 | Ver 6.000
+};
+
+int cleanElfCRC32Count = sizeof(cleanElfCRC32) / sizeof(uint32_t);
+
+uint32_t calcCrc32(uint32_t crc, uint8_t data)
+{
+    crc ^= data; // No shift needed; working in LSB-first order
+    for (int i = 0; i < 8; i++)
+    {
+        if (crc & 1)
+        {
+            crc = (crc >> 1) ^ 0xEDB88320;
+        }
+        else
+        {
+            crc = (crc >> 1);
+        }
+    }
+    return crc;
+}
+
+int lookupCrcTable(uint32_t crc)
+{
+    for (int x = 0; x < cleanElfCRC32Count; x++)
+    {
+        if (cleanElfCRC32[x] == crc)
+            return 1;
+    }
+    return 0;
+}
+
+void isCleanElf(char *command)
+{
+    const char *space_pos = strchr(command, ' ');
+    size_t length = space_pos ? (size_t)(space_pos - command) : strlen(command);
+
+    char elfName[256];
+    strncpy(elfName, command, length);
+    elfName[length] = '\0';
+
+    FILE *file = fopen(elfName, "rb");
+    if (!file)
+    {
+        log_error("Could not calculate the Elf CRC32.");
+        return;
+    }
+
+    uint32_t crc = 0xFFFFFFFF;
+    uint8_t buffer[4096];
+    size_t bytesRead;
+
+    while ((bytesRead = fread(buffer, 1, sizeof(buffer), file)) > 0)
+    {
+        for (size_t i = 0; i < bytesRead; i++)
+        {
+            crc = calcCrc32(crc, buffer[i]);
+        }
+    }
+
+    fclose(file);
+    crc = crc ^ 0xFFFFFFFF;
+
+    if (!lookupCrcTable(crc))
+    {
+        printf("\033[1;31m");
+        printf("Warning: The ELF you are running is not Clean and might cause unwanted behavior.\n");
+        printf("         Make sure you ELF and game dump are clean before reporting issues.\n");
+        printf("\033[0m");
+    }
+}
+
 /**
  * Tests if the game uses a seperate elf for test mode
  * and updates the command line to this elf.
@@ -311,6 +455,8 @@ int main(int argc, char *argv[])
     if (testMode)
         testModePath(command);
 
+    isCleanElf(command);
+
     if (gdb)
     {
         char temp[128];
@@ -318,6 +464,7 @@ int main(int argc, char *argv[])
         strcat(temp, command);
         strcpy(command, temp);
     }
+
     if (extConfigPath[0] != '\0')
     {
         setenv(LINDBERGH_CONFIG_PATH,extConfigPath,1);