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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 16:03:01 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 16:03:01 +0000 |
commit | 14970231a38310b9561052a67b617138eeaad300 (patch) | |
tree | 35c201a651afa5d5e4fff241280081b3f88b9c2c /sysdeps/mach/hurd/truncate64.c | |
parent | f08c7420b5e8b017a1a47b880a62b15bdc588f4d (diff) | |
parent | 25ead03a3712d57df2208fe82f3d316eb8faeaf6 (diff) |
Merge commit 'refs/top-bases/t/extern_inline' into t/extern_inline
Diffstat (limited to 'sysdeps/mach/hurd/truncate64.c')
-rw-r--r-- | sysdeps/mach/hurd/truncate64.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/truncate64.c b/sysdeps/mach/hurd/truncate64.c new file mode 100644 index 0000000000..0d30a1cc01 --- /dev/null +++ b/sysdeps/mach/hurd/truncate64.c @@ -0,0 +1,42 @@ +/* Copyright (C) 1991-2018 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, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <fcntl.h> +#include <sys/types.h> +#include <unistd.h> +#include <hurd.h> + +/* Truncate FILE_NAME to LENGTH bytes. */ +int +__truncate64 (const char *file_name, off64_t length) +{ + error_t err; + file_t file = __file_name_lookup (file_name, O_WRITE, 0); + + if (file == MACH_PORT_NULL) + return -1; + + err = __file_set_size (file, length); + __mach_port_deallocate (__mach_task_self (), file); + + if (err) + return __hurd_fail (err); + return 0; +} + +weak_alias (__truncate64, truncate64) |