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hurd: Factorize at/non-at functions
Non-at functions can be implemented by just calling the corresponding at function with AT_FDCWD and zero at_flags. In the linkat case, the at behavior is different (O_NOLINK), so this introduces __linkat_common to pass O_NOLINK as appropriate. lstat functions can also be implemented with fstatat by adding __fstatat64_common which takes a flags parameter in addition to the at_flags parameter, In the end this factorizes chmod, chown, link, lstat64, mkdir, readlink, rename, stat64, symlink, unlink, utimes. This also makes __lstat, __lxstat64, __stat and __xstat64 directly use __fstatat64_common instead of __lstat64 or __stat64.
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@@ -24,15 +24,7 @@
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int
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__chmod (const char *file, mode_t mode)
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{
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error_t err;
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file_t port = __file_name_lookup (file, 0, 0);
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if (port == MACH_PORT_NULL)
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return -1;
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err = __file_chmod (port, mode);
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__mach_port_deallocate (__mach_task_self (), port);
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if (err)
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return __hurd_fail (err);
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return 0;
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return __fchmodat (AT_FDCWD, file, mode, 0);
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}
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libc_hidden_def (__chmod)
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