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9ec31e5727
The __hurd_fail () inline function is the dedicated, idiomatic way of
reporting errors in the Hurd part of glibc. Not only is it more concise
than '{ errno = err; return -1; }', it is since commit
6639cc1002
"hurd: Mark error functions as __COLD" marked with the cold attribute,
telling the compiler that this codepath is unlikely to be executed.
In one case, use __hurd_dfail () over the plain __hurd_fail ().
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
Message-Id: <20230520115531.3911877-1-bugaevc@gmail.com>
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* unlinkat -- Remove a name relative to an open directory. Hurd version.
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Copyright (C) 2006-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <fcntl.h>
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#include <stddef.h>
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#include <unistd.h>
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#include <hurd.h>
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#include <hurd/fd.h>
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/* Remove the link named NAME. */
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int
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__unlinkat (int fd, const char *name, int flag)
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{
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error_t err;
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file_t dir;
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const char *file;
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if ((flag &~ AT_REMOVEDIR) != 0)
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return __hurd_fail (EINVAL);
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dir = __directory_name_split_at (fd, name, (char **) &file);
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if (dir == MACH_PORT_NULL)
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return -1;
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err = ((flag & AT_REMOVEDIR) ? __dir_rmdir : __dir_unlink) (dir, file);
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__mach_port_deallocate (__mach_task_self (), dir);
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if (err)
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return __hurd_fail (err);
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return 0;
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}
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weak_alias (__unlinkat, unlinkat)
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