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libssh2/docs/libssh2_knownhost_writefile.md
2026-06-01 14:38:31 +02:00

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---
c: Copyright (C) Daniel Stenberg
SPDX-License-Identifier: BSD-3-Clause
Title: libssh2_knownhost_writefile
Section: 3
Source: libssh2
See-also:
- libssh2_knownhost_add(3)
- libssh2_knownhost_readfile(3)
---
# NAME
libssh2_knownhost_writefile - write a collection of known hosts to a file
# SYNOPSIS
~~~c
#include <libssh2.h>
int libssh2_knownhost_writefile(LIBSSH2_KNOWNHOSTS *hosts,
const char *filename, int type);
~~~
# DESCRIPTION
Writes all the known hosts to the specified file using the specified file
format.
*filename* specifies what filename to create
*type* specifies what file type it is, and
*LIBSSH2_KNOWNHOST_FILE_OPENSSH* is the only currently supported
format.
# RETURN VALUE
Returns a regular libssh2 error code, where negative values are error codes
and 0 indicates success.
# AVAILABILITY
Added in libssh2 1.2