diff -r 0e6a05c779e0 -r a2438f6d1e73 src/server/public/nsapi.h
--- a/src/server/public/nsapi.h	Fri Jan 12 17:54:52 2018 +0100
+++ b/src/server/public/nsapi.h	Fri Jan 12 18:12:42 2018 +0100
@@ -1538,6 +1538,8 @@
 /* file */
 NSAPI_PUBLIC int system_fread(SYS_FILE fd, void *buf, int nbyte);
 NSAPI_PUBLIC int system_fwrite(SYS_FILE fd, const void *buf, int nbyte);
+NSAPI_PUBLIC int system_pread(SYS_FILE fd, void *buf, int nbyte, off_t offset);
+NSAPI_PUBLIC int system_pwrite(SYS_FILE fd, const void *buf, int nbyte, off_t offset);
 NSAPI_PUBLIC off_t system_lseek(SYS_FILE fd, off_t offset, int whence);
 NSAPI_PUBLIC int system_fclose(SYS_FILE fd);