server: Make the address argument for read/write_process_memory a client_ptr_t.
diff --git a/server/procfs.c b/server/procfs.c
index da22af3..8c789c5 100644
--- a/server/procfs.c
+++ b/server/procfs.c
@@ -124,12 +124,18 @@
}
/* read data from a process memory space */
-int read_process_memory( struct process *process, const void *ptr, size_t size, char *dest )
+int read_process_memory( struct process *process, client_ptr_t ptr, size_t size, char *dest )
{
ssize_t ret;
- int fd = open_proc_as( process, O_RDONLY );
+ int fd;
- if (fd == -1) return 0;
+ if ((off_t)ptr != ptr)
+ {
+ set_error( STATUS_ACCESS_DENIED );
+ return 0;
+ }
+
+ if ((fd = open_proc_as( process, O_RDONLY )) == -1) return 0;
ret = pread( fd, dest, size, (off_t)ptr );
close( fd );
@@ -141,12 +147,18 @@
}
/* write data to a process memory space */
-int write_process_memory( struct process *process, void *ptr, size_t size, const char *src )
+int write_process_memory( struct process *process, client_ptr_t ptr, size_t size, const char *src )
{
ssize_t ret;
- int fd = open_proc_as( process, O_WRONLY );
+ int fd;
- if (fd == -1) return 0;
+ if ((off_t)ptr != ptr)
+ {
+ set_error( STATUS_ACCESS_DENIED );
+ return 0;
+ }
+
+ if ((fd = open_proc_as( process, O_RDONLY )) == -1) return 0;
ret = pwrite( fd, src, size, (off_t)ptr );
close( fd );
