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66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
/* POSIX-specific extra functions.
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Copyright (C) 2016-2018 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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<http://www.gnu.org/licenses/>. */
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/* These wrapper functions use POSIX types and therefore cannot be
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declared in <support/support.h>. */
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#ifndef SUPPORT_XUNISTD_H
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#define SUPPORT_XUNISTD_H
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <unistd.h>
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__BEGIN_DECLS
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struct stat64;
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pid_t xfork (void);
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pid_t xwaitpid (pid_t, int *status, int flags);
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void xpipe (int[2]);
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void xdup2 (int, int);
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int xopen (const char *path, int flags, mode_t);
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void xstat (const char *path, struct stat64 *);
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void xfstat (int fd, struct stat64 *);
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void xmkdir (const char *path, mode_t);
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void xchroot (const char *path);
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void xunlink (const char *path);
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long xsysconf (int name);
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long long xlseek (int fd, long long offset, int whence);
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void xftruncate (int fd, long long length);
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/* Read the link at PATH. The caller should free the returned string
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with free. */
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char *xreadlink (const char *path);
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/* Close the file descriptor. Ignore EINTR errors, but terminate the
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process on other errors. */
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void xclose (int);
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/* Write the buffer. Retry on short writes. */
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void xwrite (int, const void *, size_t);
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/* Invoke mmap with a zero file offset. */
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void *xmmap (void *addr, size_t length, int prot, int flags, int fd);
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void xmprotect (void *addr, size_t length, int prot);
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void xmunmap (void *addr, size_t length);
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__END_DECLS
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#endif /* SUPPORT_XUNISTD_H */
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