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| author | Ulrich Drepper <drepper@redhat.com> | 2004-03-01 21:34:36 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-03-01 21:34:36 +0000 |
| commit | afedc4afeec9bbb7f4015bae14bfea8d4d08cd24 (patch) | |
| tree | 8b42eb841d9e383e7ffb0f4da43ba4c16e1d4510 /sysdeps/unix/sysv/linux/getdents.c | |
| parent | cff08c81107ae1c8b1581b5e0a534938fd67fc45 (diff) | |
| download | glibc-afedc4afeec9bbb7f4015bae14bfea8d4d08cd24.tar.gz glibc-afedc4afeec9bbb7f4015bae14bfea8d4d08cd24.tar.xz glibc-afedc4afeec9bbb7f4015bae14bfea8d4d08cd24.zip | |
Update.
2004-03-01 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/kernel-features.h: Add support for __ASSUME_GETDENTS32_D_TYPE. * sysdeps/unix/sysv/linux/getdents.c: For 2.6.4+ kernels you getdents syscall again since it provides d_type information. * manual/install.texi (Tools for Compilation): Autoconf 2.53 is required.
Diffstat (limited to 'sysdeps/unix/sysv/linux/getdents.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/getdents.c | 49 |
1 files changed, 41 insertions, 8 deletions
diff --git a/sysdeps/unix/sysv/linux/getdents.c b/sysdeps/unix/sysv/linux/getdents.c index a732afe3c5..d473486de8 100644 --- a/sysdeps/unix/sysv/linux/getdents.c +++ b/sysdeps/unix/sysv/linux/getdents.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1993, 1995-2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1993, 1995-2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -36,14 +36,18 @@ #include "kernel-features.h" #ifdef __NR_getdents64 -#ifndef __ASSUME_GETDENTS64_SYSCALL -#ifndef __GETDENTS +# ifndef __ASSUME_GETDENTS64_SYSCALL +# ifndef __GETDENTS /* The variable is shared between all *getdents* calls. */ int __have_no_getdents64; -#else +# else extern int __have_no_getdents64; +# endif +# define have_no_getdents64_defined 1 +# endif #endif -#endif +#ifndef have_no_getdents64_defined +# define __have_no_getdents64 0 #endif #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) @@ -94,13 +98,42 @@ ssize_t internal_function __GETDENTS (int fd, char *buf, size_t nbytes) { - off64_t last_offset = -1; ssize_t retval; +#ifdef __ASSUME_GETDENTS32_D_TYPE + if (sizeof (DIRENT_TYPE) == sizeof (struct dirent)) + { + retval = INLINE_SYSCALL (getdents, 3, fd, CHECK_N(buf, nbytes), nbytes); + + /* The kernel added the d_type value after the name. Change + this now. */ + if (retval != -1) + { + union + { + struct kernel_dirent k; + struct dirent u; + } *kbuf = (void *) buf; + + while ((char *) kbuf < buf + retval) + { + char d_type = *((char *) kbuf + kbuf->k.d_reclen - 1); + memmove (kbuf->u.d_name, kbuf->k.d_name, + strlen (kbuf->k.d_name) + 1); + kbuf->u.d_type = d_type; + + kbuf = (void *) ((char *) kbuf + kbuf->k.d_reclen); + } + } + + return retval; + } +#endif + + off64_t last_offset = -1; + #ifdef __NR_getdents64 -# ifndef __ASSUME_GETDENTS64_SYSCALL if (!__have_no_getdents64) -# endif { # ifndef __ASSUME_GETDENTS64_SYSCALL int saved_errno = errno; |