AcessNative - Possible fix to ioctl() bugs

[tpg/acess2.git] / AcessNative / ld-acess_src / exports.c

diff --git a/AcessNative/ld-acess_src/exports.c b/AcessNative/ld-acess_src/exports.c
index 0c87bda..c236b52 100644 (file)
--- a/AcessNative/ld-acess_src/exports.c
+++ b/AcessNative/ld-acess_src/exports.c
@@ -12,6 +12,7 @@
 #include <stddef.h>
 
 #define DEBUG(v...)    Debug(v)
+#define PAGE_SIZE      4096
 
 typedef struct sFILE   FILE;
 
@@ -93,9 +94,14 @@ uint64_t acess_tell(int FD) {
 }
 
 int acess_ioctl(int fd, int id, void *data) {
+        int    len;
        // NOTE: 1024 byte size is a hack
        DEBUG("ioctl(%i, %i, %p)", fd, id, data);
-       return _Syscall(SYS_IOCTL, ">i >i ?d", fd, id, 1024, data);
+       if( data == NULL )
+               len = 0;
+       else
+               len = PAGE_SIZE - ((uintptr_t)data % PAGE_SIZE);
+       return _Syscall(SYS_IOCTL, ">i >i ?d", fd, id, len, data);
 }
 int acess_finfo(int fd, t_sysFInfo *info, int maxacls) {
 //     DEBUG("offsetof(size, t_sysFInfo) = %i", offsetof(t_sysFInfo, size));