[PATCH] Switch to getdents64 syscall.

[Andrius Štikonas]

It returns different dirent stuct than getdents syscall,
so we cannot use the same struct for different syscalls.

* lib/linux/getdents.c: use getdents64 syscall.
* include/linux/x86/syscall.h: getdents64 syscall.
* include/dirent.h: adjust struct for getdents64 syscall
---
 include/dirent.h            | 2 --
 include/linux/x86/syscall.h | 2 +-
 lib/linux/getdents.c        | 5 ++---
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/include/dirent.h b/include/dirent.h
index 7b4a0787..6cc25ea3 100644
--- a/include/dirent.h
+++ b/include/dirent.h
@@ -48,9 +48,7 @@ struct dirent
   ino_t d_ino;
   off_t d_off;
   unsigned short int d_reclen;
-#if 0
   unsigned char d_type;
-#endif
   char d_name[256];             /* We must not include limits.h! */
 };
 
diff --git a/include/linux/x86/syscall.h b/include/linux/x86/syscall.h
index 24c9493f..feb6dcc8 100644
--- a/include/linux/x86/syscall.h
+++ b/include/linux/x86/syscall.h
@@ -81,7 +81,7 @@
 #define SYS_setitimer 0x68
 #define SYS_fstat     0x6c
 #define SYS_nanosleep 0xa2
-#define SYS_getdents  0x8d
+#define SYS_getdents64 0xdc
 
 /* bash */
 #define SYS_setuid    0x17
diff --git a/lib/linux/getdents.c b/lib/linux/getdents.c
index 16563b42..e47b564a 100644
--- a/lib/linux/getdents.c
+++ b/lib/linux/getdents.c
@@ -2,6 +2,7 @@
  * GNU Mes --- Maxwell Equations of Software
  * Copyright © 2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
  * Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
+ * Copyright © 2024 Andrius Štikonas <andrius@stikonas.eu>
  *
  * This file is part of GNU Mes.
  *
@@ -26,9 +27,7 @@
 int
 getdents (int filedes, char *buffer, size_t nbytes)
 {
-#if defined (SYS_getdents)
-  return _sys_call3 (SYS_getdents, (int) filedes, (long) buffer, (long) 
nbytes);
-#elif defined (SYS_getdents64)
+#if defined (SYS_getdents64)
   return _sys_call3 (SYS_getdents64, (int) filedes, (long) buffer, (long) 
nbytes);
 #else
 #error No usable getdents syscall
-- 
2.43.0