libssh2\_knownhost\_readfile(3) libssh2 libssh2\_knownhost\_readfile(3)

# [NAME](#NAME)

libssh2\_knownhost\_readfile - parse a file of known hosts

# [SYNOPSIS](#SYNOPSIS)

```
#include <libssh2.h>
int
libssh2_knownhost_readfile(LIBSSH2_KNOWNHOSTS *hosts,


                           const char *filename, int type);
```

# [DESCRIPTION](#DESCRIPTION)

Reads a collection of known hosts from a specified file and adds them to the collection of known hosts.

*filename* specifies which file to read

*type* specifies what file type it is, and *LIBSSH2\_KNOWNHOST\_FILE\_OPENSSH* is the only currently supported format. This file is normally found named ~/.ssh/known\_hosts

# [RETURN VALUE](#RETURN_VALUE)

Returns a negative value, a regular libssh2 error code for errors, or a positive number as number of parsed known hosts in the file.

# [AVAILABILITY](#AVAILABILITY)

Added in libssh2 1.2

# [SEE ALSO](#SEE_ALSO)

[**libssh2\_knownhost\_init(3)**](/man/os/libssh2/libssh2_knownhost_init.3) [**libssh2\_knownhost\_free(3)**](/man/os/libssh2/libssh2_knownhost_free.3) [**libssh2\_knownhost\_check(3)**](/man/os/libssh2/libssh2_knownhost_check.3)

28 May 2009 libssh2

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Document: libssh2_knownhost_readfile(3) from libssh2 1.11.1-r11 (Chainguard OS)
Source: https://github.com/libssh2/libssh2.git