Adding upstream version 4.22.0.upstream/4.22.0

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

1 files changed, 126 insertions, 0 deletions

diff --git a/upstream/archlinux/man3p/iconv_open.3p b/upstream/archlinux/man3p/iconv_open.3p
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+'\" et
+.TH ICONV_OPEN "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
+iconv_open
+\(em codeset conversion allocation function
+.SH SYNOPSIS
+.LP
+.nf
+#include <iconv.h>
+.P
+iconv_t iconv_open(const char *\fItocode\fP, const char *\fIfromcode\fP);
+.fi
+.SH DESCRIPTION
+The
+\fIiconv_open\fR()
+function shall return a conversion descriptor
+that describes a conversion from the codeset specified by the string
+pointed to by the
+.IR fromcode
+argument to the codeset specified by the string pointed to by the
+.IR tocode
+argument. For state-dependent encodings, the conversion descriptor
+shall be in a codeset-dependent initial shift state, ready for
+immediate use with
+\fIiconv\fR().
+.P
+Settings of
+.IR fromcode
+and
+.IR tocode
+and their permitted combinations are implementation-defined.
+.P
+A conversion descriptor shall remain valid until it is closed by
+\fIiconv_close\fR()
+or an implicit close.
+.P
+If a file descriptor is used to implement conversion descriptors, the
+FD_CLOEXEC flag shall be set; see
+.IR <fcntl.h> .
+.SH "RETURN VALUE"
+Upon successful completion,
+\fIiconv_open\fR()
+shall return a conversion descriptor for use on subsequent calls to
+\fIiconv\fR().
+Otherwise,
+\fIiconv_open\fR()
+shall return (\fBiconv_t\fP)\-1 and set
+.IR errno
+to indicate the error.
+.SH ERRORS
+The
+\fIiconv_open\fR()
+function may fail if:
+.TP
+.BR EMFILE
+All file descriptors available to the process are currently open.
+.TP
+.BR ENFILE
+Too many files are currently open in the system.
+.TP
+.BR ENOMEM
+Insufficient storage space is available.
+.TP
+.BR EINVAL
+The conversion specified by
+.IR fromcode
+and
+.IR tocode
+is not supported by the implementation.
+.LP
+.IR "The following sections are informative."
+.SH EXAMPLES
+None.
+.SH "APPLICATION USAGE"
+Some implementations of
+\fIiconv_open\fR()
+use
+\fImalloc\fR()
+to allocate space for internal buffer areas. The
+\fIiconv_open\fR()
+function may fail if there is insufficient storage space to accommodate
+these buffers.
+.P
+Conforming applications must assume that conversion descriptors are not
+valid after a call to one of the
+.IR exec
+functions.
+.P
+Application developers should consult the system documentation to
+determine the supported codesets and their naming schemes.
+.SH RATIONALE
+None.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+.IR "\fIiconv\fR\^(\|)",
+.IR "\fIiconv_close\fR\^(\|)"
+.P
+The Base Definitions volume of POSIX.1\(hy2017,
+.IR "\fB<fcntl.h>\fP",
+.IR "\fB<iconv.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 .