nativelibc/symlink.c

#include <windows.h>
#include <nt.h>
//#include <errno.h>

int symlink(const char *oldpath, const char *newpath) {
	void *handle;
	UNICODE_STRING old_path;
	UNICODE_STRING new_path;
	RtlCreateUnicodeStringFromAsciiz(&old_path, oldpath);
	RtlCreateUnicodeStringFromAsciiz(&new_path, newpath);
	int i;
	for(i=0; i<old_path.Length; i++) if(old_path.Buffer[i] == L'/') old_path.Buffer[i] = L'\\';
	for(i=0; i<new_path.Length; i++) if(new_path.Buffer[i] == L'/') new_path.Buffer[i] = L'\\';
	OBJECT_ATTRIBUTES orig_object = { sizeof(OBJECT_ATTRIBUTES), NULL, &new_path, 0, NULL, NULL };
	long int status = NtCreateSymbolicLinkObject(&handle, SYMBOLIC_LINK_ALL_ACCESS, &orig_object, &old_path);
	RtlFreeUnicodeString(&old_path);
	RtlFreeUnicodeString(&new_path);
	//printf("nativelibc debug: symlink: status = 0x%lx\n", status);
	//return ((errno = ntstatus_to_errno(status))) ? -1 : 0;
	return status ? -1 : 0;
}