decomp DBCServer_Release and inspect/document database

decomp/DBCServer_Release_x64/full/functions/0x14020d500.c

@@ -0,0 +1,99 @@
+/* DBCServer_Release_x64.exe sha256 d9e4fccdf3482e50247686d4452c0b13c75a53efc4bd7320668eece8d1ce828c
+ * Ghidra 12.1.2 decompiler output for 0x14020d500 FUN_14020d500
+ * Pseudocode, not original source. */
+
+undefined8 FUN_14020d500(byte *param_1,uint param_2,ushort *param_3,uint *param_4)
+
+{
+  byte bVar1;
+  undefined8 uVar2;
+  uint uVar3;
+  ushort uVar4;
+  uint uVar5;
+  byte *pbVar6;
+  longlong lVar7;
+  uint uVar8;
+  
+  if (((param_1 == (byte *)0x0) || (param_3 == (ushort *)0x0)) || (param_4 == (uint *)0x0)) {
+    return 0x10;
+  }
+  if ((1 < param_2) && ((*param_1 & 0x1f) == 0xc)) {
+    bVar1 = param_1[1];
+    if ((char)bVar1 < '\0') {
+      uVar5 = bVar1 & 0x7f;
+      if ((bVar1 & 0x7f) == 0) {
+        return 7;
+      }
+      if (3 < uVar5) {
+        return 7;
+      }
+      if (param_2 < uVar5 + 1) {
+        return 7;
+      }
+      uVar3 = 0;
+      pbVar6 = param_1 + 2;
+      uVar8 = uVar5 + 2;
+      do {
+        bVar1 = *pbVar6;
+        pbVar6 = pbVar6 + 1;
+        uVar3 = uVar3 << 8 | (uint)bVar1;
+        uVar5 = uVar5 - 1;
+      } while (uVar5 != 0);
+    }
+    else {
+      uVar8 = 2;
+      uVar3 = bVar1 & 0x7f;
+    }
+    if (uVar3 + uVar8 <= param_2) {
+      uVar3 = 0;
+      lVar7 = (longlong)(int)uVar8;
+      do {
+        if (param_2 <= uVar8) {
+          uVar2 = 0;
+LAB_14020d653:
+          *param_4 = uVar3;
+          return uVar2;
+        }
+        uVar4 = (ushort)param_1[lVar7];
+        uVar8 = uVar8 + 1;
+        uVar5 = 0;
+        if ((char)param_1[lVar7] < '\0') {
+          do {
+            if (4 < uVar5) {
+              return 7;
+            }
+            uVar5 = uVar5 + 1;
+            uVar4 = (uVar4 & 0x7f) * 2;
+          } while ((char)uVar4 < '\0');
+          if (4 < uVar5) {
+            return 7;
+          }
+        }
+        if (param_2 < (uVar5 - 1) + uVar8) {
+          return 7;
+        }
+        uVar4 = uVar4 >> ((byte)uVar5 & 0x1f);
+        if (1 < uVar5) {
+          uVar5 = uVar5 - 1;
+        }
+        while (lVar7 = lVar7 + 1, uVar5 != 0) {
+          uVar5 = uVar5 - 1;
+          if ((param_1[lVar7] & 0xc0) != 0x80) {
+            return 7;
+          }
+          uVar8 = uVar8 + 1;
+          uVar4 = uVar4 << 6 | (ushort)(param_1[lVar7] & 0x3f);
+        }
+        if (*param_4 < uVar3) {
+          uVar2 = 6;
+          goto LAB_14020d653;
+        }
+        *param_3 = uVar4;
+        param_3 = param_3 + 1;
+        uVar3 = uVar3 + 1;
+      } while( true );
+    }
+  }
+  return 7;
+}
+