forked from Hay1tsme/segatools
63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
#include <windows.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "hook/table.h"
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#include "util/dprintf.h"
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static BOOL WINAPI pcbid_GetComputerNameA(char *dest, uint32_t *len);
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static const char pcbid_file[] = "DEVICE/pcbid.txt";
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static char pcbid_str[16];
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static const struct hook_symbol pcbid_syms[] = {
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{
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.name = "GetComputerNameA",
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.patch = pcbid_GetComputerNameA,
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}
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};
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void pcbid_hook_init(void)
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{
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FILE *f;
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f = fopen(pcbid_file, "r");
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if (f != NULL) {
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/* De-hyphenate the serial number. Game code will re-insert it. */
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fscanf(f, "%4s-", &pcbid_str[0]);
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fscanf(f, "%11s", &pcbid_str[4]);
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fclose(f);
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} else {
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dprintf("Failed to open %s\n", pcbid_file);
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}
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hook_table_apply(NULL, "kernel32.dll", pcbid_syms, _countof(pcbid_syms));
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}
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static BOOL WINAPI pcbid_GetComputerNameA(char *dest, uint32_t *len)
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{
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if (dest == NULL || len == NULL) {
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SetLastError(ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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if (*len < sizeof(pcbid_str)) {
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SetLastError(ERROR_INSUFFICIENT_BUFFER);
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return FALSE;
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}
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dprintf("Pcbid: Get PCB serial\n");
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memcpy(dest, pcbid_str, sizeof(pcbid_str));
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*len = sizeof(pcbid_str) - 1;
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return TRUE;
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}
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