added resolve and hooking examples

Author: hitodama

kern/file_hello_world/source/main.c

@@ -0,0 +1,82 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <ps4/kernel.h>
+
+#define SERVER_PORT 5088
+
+int main(int argc, char **argv)
+{
+	Ps4KernelCache *c;
+	void *m, *m2;
+	int r;
+
+	Ps4KernelThread *td;
+	Ps4KernelSocket *client;
+
+	if(ps4KernelIsInKernel() != PS4_OK)
+	{
+		printf("This is not a user space application.\n");
+		return PS4_ERROR_IS_KERNEL_ELF;
+	}
+
+	ps4KernelThreadGetCurrent(&td);
+	r = ps4KernelSocketTCPServerCreateAcceptThenDestroy(td, &client, SERVER_PORT);
+
+	m = m2 = NULL;
+	r = ps4KernelCacheCreate(&c);
+	r = ps4KernelSocketPrint(td, client, "cache create: %p %i\n", c, r);
+
+	r = ps4KernelCacheGet(c, "foo", &m2);
+	r = ps4KernelSocketPrint(td, client, "cache get foo m2: %p %i\n", m2, r);
+
+	m = (void *)42;
+	r = ps4KernelCacheSet(c, "foo", m);
+	r = ps4KernelSocketPrint(td, client, "cache set foo m: %p %i\n", m, r);
+
+	r = ps4KernelCacheGet(c, "foo", &m2);
+	r = ps4KernelSocketPrint(td, client, "cache get foo m2: %p %i\n", m2, r);
+
+	r = ps4KernelCacheDelete(c, "foo");
+	r = ps4KernelSocketPrint(td, client, "cache delete foo: %i\n", r);
+
+	r = ps4KernelCacheDelete(c, "bar");
+	r = ps4KernelSocketPrint(td, client, "cache delete bar: %i\n", r);
+
+	m2 = NULL;
+	r = ps4KernelCacheGet(c, "foo", &m2);
+	r = ps4KernelSocketPrint(td, client, "cache get foo m2: %p %i\n", m2, r);
+
+	r = ps4KernelCacheDestroy(c);
+	r = ps4KernelSocketPrint(td, client, "cache destroy: %p %i\n", m2, r);
+
+	// Global (rerun)
+
+	m = NULL;
+	r = ps4KernelCacheGlobalGet("ps4.test.foo", &m);
+	r = ps4KernelSocketPrint(td, client, "m: %p %i\n", m, r);
+
+	m = (void *)0x42;
+	r = ps4KernelCacheGlobalSet("ps4.test.foo", m);
+	r = ps4KernelSocketPrint(td, client, "m: %p %i\n", m, r);
+
+	m = NULL;
+	r = ps4KernelCacheGlobalGet("ps4.test.foo", &m);
+	r = ps4KernelSocketPrint(td, client, "m: %p %i\n", m, r);
+
+	//m = ps4KernelDlSym("sysctl_handle_64");
+	//r = ps4KernelSocketPrint(td, client, "ps4KernelDlSym sysctl_handle_64: %p\n", m);
+
+	// uses a sub-cache called ps4.kernel.symbol.lookup
+	r = ps4KernelSymbolLookup("sysctl_handle_64", &m);
+	r = ps4KernelSocketPrint(td, client, "ps4KernelSymbolLookup sysctl_handle_64: %p %i\n", m, r);
+
+	m = NULL;
+	r = ps4KernelCacheGlobalGet("ps4.kernel.symbol.lookup", &m);
+	r = ps4KernelSocketPrint(td, client, "ps4.kernel.symbol.lookup: %p %i\n", m, r);
+
+
+	r = ps4KernelSocketDestroy(client);
+
+	return EXIT_SUCCESS;
+}