Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 206 insertions, 0 deletions

diff --git a/upstream/archlinux/man3p/fclose.3p b/upstream/archlinux/man3p/fclose.3p
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+'\" et
+.TH FCLOSE "3P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\"
+.SH PROLOG
+This manual page is part of the POSIX Programmer's Manual.
+The Linux implementation of this interface may differ (consult
+the corresponding Linux manual page for details of Linux behavior),
+or the interface may not be implemented on Linux.
+.\"
+.SH NAME
+fclose
+\(em close a stream
+.SH SYNOPSIS
+.LP
+.nf
+#include <stdio.h>
+.P
+int fclose(FILE *\fIstream\fP);
+.fi
+.SH DESCRIPTION
+The functionality described on this reference page is aligned with the
+ISO\ C standard. Any conflict between the requirements described here and the
+ISO\ C standard is unintentional. This volume of POSIX.1\(hy2017 defers to the ISO\ C standard.
+.P
+The
+\fIfclose\fR()
+function shall cause the stream pointed to by
+.IR stream
+to be flushed and the associated file to be closed. Any unwritten
+buffered data for the stream shall be written to the file; any unread
+buffered data shall be discarded. Whether or not the call succeeds,
+the stream shall be disassociated from the file and any buffer set by
+the
+\fIsetbuf\fR()
+or
+\fIsetvbuf\fR()
+function shall be disassociated from the stream. If the associated
+buffer was automatically allocated, it shall be deallocated.
+.P
+If the file is not already at EOF, and the file is one capable of seeking,
+the file offset of the underlying open file description shall be set to
+the file position of the stream if the stream is the active handle to
+the underlying file description.
+.P
+The
+\fIfclose\fR()
+function shall mark for update the last data modification and last
+file status change timestamps of the underlying file, if the stream was
+writable, and if buffered data remains that has not yet been written to
+the file. The
+\fIfclose\fR()
+function shall perform the equivalent of a
+\fIclose\fR()
+on the file descriptor that is associated with the stream pointed to by
+.IR stream .
+.P
+After the call to
+\fIfclose\fR(),
+any use of
+.IR stream
+results in undefined behavior.
+.SH "RETURN VALUE"
+Upon successful completion,
+\fIfclose\fR()
+shall return 0; otherwise, it shall return EOF
+and set
+.IR errno
+to indicate the error.
+.SH ERRORS
+The
+\fIfclose\fR()
+function shall fail if:
+.TP
+.BR EAGAIN
+The O_NONBLOCK flag is set for the file descriptor underlying
+.IR stream
+and the thread would be delayed in the write operation.
+.TP
+.BR EBADF
+The file descriptor underlying stream is not valid.
+.TP
+.BR EFBIG
+An attempt was made to write a file that exceeds the maximum file size.
+.TP
+.BR EFBIG
+An attempt was made to write a file that exceeds the file size
+limit of the process.
+.TP
+.BR EFBIG
+The file is a regular file and an attempt was made to write at or beyond
+the offset maximum associated with the corresponding stream.
+.TP
+.BR EINTR
+The
+\fIfclose\fR()
+function was interrupted by a signal.
+.TP
+.BR EIO
+The process is a member of a background process group attempting to
+write to its controlling terminal, TOSTOP is set, the calling thread
+is not blocking SIGTTOU, the process is not ignoring SIGTTOU, and the
+process group of the process is orphaned.
+This error may also be returned under implementation-defined conditions.
+.TP
+.BR ENOMEM
+The underlying stream was created by
+\fIopen_memstream\fR()
+or
+\fIopen_wmemstream\fR()
+and insufficient memory is available.
+.TP
+.BR ENOSPC
+There was no free space remaining on the device containing the file or
+in the buffer used by the
+\fIfmemopen\fR()
+function.
+.TP
+.BR EPIPE
+An attempt is made to write to a pipe or FIFO that is not open for
+reading by any process. A SIGPIPE signal shall also be sent to the
+thread.
+.P
+The
+\fIfclose\fR()
+function may fail if:
+.TP
+.BR ENXIO
+A request was made of a nonexistent device, or the request was outside
+the capabilities of the device.
+.LP
+.IR "The following sections are informative."
+.SH EXAMPLES
+None.
+.SH "APPLICATION USAGE"
+Since after the call to
+\fIfclose\fR()
+any use of
+.IR stream
+results in undefined behavior,
+\fIfclose\fR()
+should not be used on
+.IR stdin ,
+.IR stdout ,
+or
+.IR stderr
+except immediately before process termination (see the Base Definitions volume of POSIX.1\(hy2017,
+.IR "Section 3.303" ", " "Process Termination"),
+so as to avoid triggering undefined behavior in other standard
+interfaces that rely on these streams. If there are any
+\fIatexit\fR()
+handlers registered by the application, such a call to
+\fIfclose\fR()
+should not occur until the last handler is finishing. Once
+\fIfclose\fR()
+has been used to close
+.IR stdin ,
+.IR stdout ,
+or
+.IR stderr ,
+there is no standard way to reopen any of these streams.
+.P
+Use of
+\fIfreopen\fR()
+to change
+.IR stdin ,
+.IR stdout ,
+or
+.IR stderr
+instead of closing them avoids the danger of a file unexpectedly
+being opened as one of the special file descriptors STDIN_FILENO,
+STDOUT_FILENO, or STDERR_FILENO at a later time in the application.
+.SH RATIONALE
+None.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+.IR "Section 2.5" ", " "Standard I/O Streams",
+.IR "\fIatexit\fR\^(\|)",
+.IR "\fIclose\fR\^(\|)",
+.IR "\fIfmemopen\fR\^(\|)",
+.IR "\fIfopen\fR\^(\|)",
+.IR "\fIfreopen\fR\^(\|)",
+.IR "\fIgetrlimit\fR\^(\|)",
+.IR "\fIopen_memstream\fR\^(\|)",
+.IR "\fIulimit\fR\^(\|)"
+.P
+The Base Definitions volume of POSIX.1\(hy2017,
+.IR "\fB<stdio.h>\fP"
+.\"
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1-2017, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 7, 2018 Edition,
+Copyright (C) 2018 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group.
+In the event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .
+.PP
+Any typographical or formatting errors that appear
+in this page are most likely
+to have been introduced during the conversion of the source files to
+man page format. To report such errors, see
+https://www.kernel.org/doc/man-pages/reporting_bugs.html .