find-UTIL_PlayerSlotToPlayerController

Find UTIL_PlayerSlotToPlayerController

Locate UTIL_PlayerSlotToPlayerController in CS2 server.dll or server.so using IDA Pro MCP tools.

Method

1. Search for the string:

   mcp__ida-pro-mcp__find_regex pattern="splitscreenplayer"
   

   Look for the exact string "splitscreenplayer" (not the ones with prefixes).

2. Get cross-references to the string:

   mcp__ida-pro-mcp__xrefs_to addrs="<string_addr>"
   

3. Decompile the referencing function and verify it matches:

   mcp__ida-pro-mcp__decompile addr="<function_addr>"
   

   The target function should contain:

   • A vtable assignment: *(_QWORD *)a1 = &CGameEvent::\vftable';`
   • String reference: "splitscreenplayer"
   • CBufferString operations

   Example pattern:

   v3 = (_QWORD *)(a1 + 24);
   *(_DWORD *)(a1 + 20) = -1073741760;
   v4 = a3;
   *(_QWORD *)a1 = &CGameEvent::`vftable';
   // ...
   v11 = "splitscreenplayer";
   // ...
   return a1;
   

4. Rename the function:

   mcp__ida-pro-mcp__rename batch={"func": [{"addr": "<function_addr>", "name": "UTIL_PlayerSlotToPlayerController"}]}
   

5. Generate and validate unique signature:

   ALWAYS Use SKILL /generate-signature-for-function to generate a robust and unique signature for the function.

   Note: This function contains RIP-relative addresses (LEA to CGameEvent vtable), so use ?? wildcards for those bytes.

6. Write IDA analysis output as YAML beside the binary:

   ALWAYS Use SKILL /write-func-as-yaml to write the analysis results.

   Required parameters:

   • func_name: UTIL_PlayerSlotToPlayerController
   • func_addr: The function address
   • func_sig: The validated signature with wildcards

Function Characteristics

• Parameters:
  • a1: Output event object pointer
  • a2: Event data
  • a3: String parameter (const char*)
• Return: Event object pointer (a1)

Key Behaviors

1. Initializes a CGameEvent object with vtable
2. Sets up CBufferString operations
3. Uses "splitscreenplayer" string for event data
4. Returns the initialized event object

DLL Information

• DLL: server.dll (Windows) / server.so (Linux)

Notes

• This is NOT a virtual function
• The function references CGameEvent vtable
• Contains CBufferString operations for string handling
• The signature requires wildcards for RIP-relative addresses

Output YAML Format

The output YAML filename depends on the platform:

• server.dll → UTIL_PlayerSlotToPlayerController.windows.yaml
• server.so → UTIL_PlayerSlotToPlayerController.linux.yaml

func_va: 0x180XXXXXX      # Virtual address of the function - This can change when game updates.
func_rva: 0xXXXXXX        # Relative virtual address (VA - image base) - This can change when game updates.
func_size: 0xXX           # Function size in bytes - This can change when game updates.
func_sig: XX XX ?? ?? XX  # Unique byte signature with wildcards for RIP-relative addresses