diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/powerpc64/truncate64.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc64/truncate64.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/truncate64.c b/sysdeps/unix/sysv/linux/powerpc/powerpc64/truncate64.c new file mode 100644 index 0000000000..cbf0669082 --- /dev/null +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/truncate64.c @@ -0,0 +1,76 @@ +/* Copyright (C) 1997, 1998, 1999, 2000, 2002 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sys/types.h> +#include <errno.h> +#include <unistd.h> + +#include <sysdep.h> +#include <sys/syscall.h> +#include <bp-checks.h> + +#include "kernel-features.h" + +#ifdef __NR_truncate64 +#ifndef __ASSUME_TRUNCATE64_SYSCALL +/* The variable is shared between all wrappers around *truncate64 calls. */ +int have_no_truncate64; +#endif + + +/* Truncate the file FD refers to to LENGTH bytes. */ +int +truncate64 (path, length) + const char *path; + off64_t length; +{ +#ifndef __ASSUME_TRUNCATE64_SYSCALL + if (! have_no_truncate64) +#endif + { +#ifndef __ASSUME_TRUNCATE64_SYSCALL + int saved_errno = errno; +#endif + int result = INLINE_SYSCALL (truncate64, 2, CHECK_STRING (path), + length); + +#ifndef __ASSUME_TRUNCATE64_SYSCALL + if (result != -1 || errno != ENOSYS) +#endif + return result; + +#ifndef __ASSUME_TRUNCATE64_SYSCALL + __set_errno (saved_errno); + have_no_truncate64 = 1; +#endif + } + +#ifndef __ASSUME_TRUNCATE64_SYSCALL + if ((off_t) length != length) + { + __set_errno (EINVAL); + return -1; + } + return truncate (path, (off_t) length); +#endif +} + +#else +/* Use the generic implementation. */ +# include <sysdeps/generic/truncate64.c> +#endif |