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docs: convert man page sources to "curldown" format

Browse Source 
To render in Git webviews as-is, to make it easier to edit, verify,
and to sync up with curl.

- add options to not build the `.3` man pages:
  - autotools: `--disable-docs`
  - cmake: `LIBSSH2_BUILD_DOCS=OFF`
- building `.3` man pages requires Perl after this patch.
- drop `mansyntax` and the shell / `grep` / GNU `man` tool requirements with it.
- scripts and most logic were copied from curl.
- add `cd2nroff` from curl, with edits to relax curl-specific checks.
- used `nroff2cd` (from curl) to convert from `.3` to `.md`. Then
  manually fixed copyrights, inline function references and a couple
  of other things.

Credits-to: Daniel Stenberg

Ref: eefcc1bda4
Ref: https://github.com/curl/curl/pull/12730
Ref: https://github.com/libssh2/www/issues/25#issuecomment-3289431671

Closes #1660
This commit is contained in:
Viktor Szakats
2025-09-14 18:22:27 +02:00
parent cea796fc2d
commit b889b39945
320 changed files with 8216 additions and 4987 deletions
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77
docs/libssh2_sftp_open_ex_r.3
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@@ -1,77 +0,0 @@
.\" Copyright (C) The libssh2 project and its contributors.
.\" SPDX-License-Identifier: BSD-3-Clause
.TH libssh2_sftp_open_ex_r 3 "10 Apr 2023" "libssh2" "libssh2"
.SH NAME
libssh2_sftp_open_ex_r - open filehandle for file on SFTP.
.SH SYNOPSIS
.nf
#include <libssh2.h>
#include <libssh2_sftp.h>
LIBSSH2_SFTP_HANDLE *
libssh2_sftp_open_ex_r(LIBSSH2_SFTP *sftp, const char *filename,
size_t filename_len,
unsigned long flags,
long mode,
int open_type,
LIBSSH2_SFTP_ATTRIBUTES *attrs);
.fi
.SH DESCRIPTION
\fIsftp\fP - SFTP instance as returned by \fIlibssh2_sftp_init(3)\fP
\fIfilename\fP - Remote file/directory resource to open
\fIfilename_len\fP - Length of filename
\fIflags\fP - Any reasonable combination of the LIBSSH2_FXF_* constants:
.RS
.IP LIBSSH2_FXF_READ
Open the file for reading.
.IP LIBSSH2_FXF_WRITE
Open the file for writing. If both this and LIBSSH2_FXF_READ are specified,
the file is opened for both reading and writing.
.IP LIBSSH2_FXF_APPEND
Force all writes to append data at the end of the file.
.IP LIBSSH2_FXF_CREAT,
If this flag is specified, then a new file will be created if one does not
already exist (if LIBSSH2_FXF_TRUNC is specified, the new file will be
truncated to zero length if it previously exists)
.IP LIBSSH2_FXF_TRUNC
Forces an existing file with the same name to be truncated to zero length when
creating a file by specifying LIBSSH2_FXF_CREAT. LIBSSH2_FXF_CREAT MUST also
be specified if this flag is used.
.IP LIBSSH2_FXF_EXCL
Causes the request to fail if the named file already exists.
LIBSSH2_FXF_CREAT MUST also be specified if this flag is used.
.RE
\fImode\fP - POSIX file permissions to assign if the file is being newly
created. See the LIBSSH2_SFTP_S_* convenience defines in <libssh2_sftp.h>
\fIopen_type\fP - Either of LIBSSH2_SFTP_OPENFILE (to open a file) or
LIBSSH2_SFTP_OPENDIR (to open a directory).
\fIattrs\fP - Pointer to LIBSSH2_SFTP_ATTRIBUTES struct. See
libssh2_sftp_fstat_ex for detailed usage.
.SH RETURN VALUE
A pointer to the newly created LIBSSH2_SFTP_HANDLE instance or NULL on
failure.
.SH ERRORS
\fILIBSSH2_ERROR_ALLOC\fP - An internal memory allocation call failed.
\fILIBSSH2_ERROR_SOCKET_SEND\fP - Unable to send data on socket.
\fILIBSSH2_ERROR_SOCKET_TIMEOUT\fP -
\fILIBSSH2_ERROR_SFTP_PROTOCOL\fP - An invalid SFTP protocol response was
received on the socket, or an SFTP operation caused an errorcode to be
returned by the server.
\fILIBSSH2_ERROR_EAGAIN\fP - Marked for non-blocking I/O but the call would
block.
.SH AVAILABILITY
Added in libssh2 1.11.0
.SH SEE ALSO
.BR libssh2_sftp_close_handle(3)
.BR libssh2_sftp_fstat_ex(3)