platform/pcbid.c: Use pcbid_config

platform/pcbid.c

@@ -1,18 +1,19 @@
 #include <windows.h>
 
+#include <assert.h>
 #include <stddef.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "hook/table.h"
 
+#include "platform/pcbid.h"
+
 #include "util/dprintf.h"
 
 static BOOL WINAPI pcbid_GetComputerNameA(char *dest, uint32_t *len);
 
-static const char pcbid_file[] = "DEVICE/pcbid.txt";
-static char pcbid_str[16];
+static struct pcbid_config pcbid_cfg;
 
 static const struct hook_symbol pcbid_syms[] = {
     {
@@ -21,42 +22,38 @@ static const struct hook_symbol pcbid_syms[] = {
     }
 };
 
-void pcbid_hook_init(void)
+void pcbid_hook_init(const struct pcbid_config *cfg)
 {
-    FILE *f;
+    assert(cfg != NULL);
 
-    f = fopen(pcbid_file, "r");
-
-    if (f != NULL) {
-        /* De-hyphenate the serial number. Game code will re-insert it. */
-        fscanf(f, "%4s-", &pcbid_str[0]);
-        fscanf(f, "%11s", &pcbid_str[4]);
-        fclose(f);
-    } else {
-        dprintf("Failed to open %s\n", pcbid_file);
+    if (!cfg->enable) {
+        return;
     }
 
+    memcpy(&pcbid_cfg, cfg, sizeof(*cfg));
     hook_table_apply(NULL, "kernel32.dll", pcbid_syms, _countof(pcbid_syms));
 }
 
 static BOOL WINAPI pcbid_GetComputerNameA(char *dest, uint32_t *len)
 {
+    size_t required;
+
     if (dest == NULL || len == NULL) {
         SetLastError(ERROR_INVALID_PARAMETER);
 
         return FALSE;
     }
 
-    if (*len < sizeof(pcbid_str)) {
+    wcstombs_s(&required, NULL, 0, pcbid_cfg.serial_no, 0);
+
+    if (required > *len) {
         SetLastError(ERROR_INSUFFICIENT_BUFFER);
 
         return FALSE;
     }
 
     dprintf("Pcbid: Get PCB serial\n");
-
-    memcpy(dest, pcbid_str, sizeof(pcbid_str));
-    *len = sizeof(pcbid_str) - 1;
+    wcstombs_s(NULL, dest, *len, pcbid_cfg.serial_no, *len - 1);
 
     return TRUE;
 }

platform/pcbid.h

@@ -1,3 +1,5 @@
 #pragma once
 
-void pcbid_hook_init(void);
+#include "platform/config.h"
+
+void pcbid_hook_init(const struct pcbid_config *cfg);