798a808a2b
libssh2_knownhost_checkp took 0 as a magic port number that indicated a 'generic' check should be performed. However, 0 is a valid port number in its own right so this commit changes the magic value to any negative int.
64 lines
2.4 KiB
Groff
64 lines
2.4 KiB
Groff
.\"
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.\" Copyright (c) 2009-2010 by Daniel Stenberg
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.\"
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.TH libssh2_knownhost_check 3 "1 May 2010" "libssh2 1.2.6" "libssh2 manual"
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.SH NAME
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libssh2_knownhost_checkp - check a host+key against the list of known hosts
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.SH SYNOPSIS
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#include <libssh2.h>
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int libssh2_knownhost_checkp(LIBSSH2_KNOWNHOSTS *hosts,
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const char *host, int port,
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const char *key, size_t keylen,
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int typemask,
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struct libssh2_knownhost **knownhost);
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.SH DESCRIPTION
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Checks a host and its associated key against the collection of known hosts,
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and returns info back about the (partially) matched entry.
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\fIhost\fP is a pointer the host name in plain text. The host name can be the
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IP numerical address of the host or the full name.
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\fIport\fP is the port number used by the host (or a negative number
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to check the generic host). If the port number is given, libssh2 will
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check the key for the specific host + port number combination in
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addition to the plain host name only check.
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\fIkey\fP is a pointer to the key for the given host.
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\fIkeylen\fP is the total size in bytes of the key pointed to by the \fIkey\fP
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argument
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\fItypemask\fP is a bitmask that specifies format and info about the data
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passed to this function. Specificly, it details what format the host name is,
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what format the key is and what key type it is.
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The host name is given as one of the following types:
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LIBSSH2_KNOWNHOST_TYPE_PLAIN or LIBSSH2_KNOWNHOST_TYPE_CUSTOM.
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The key is encoded using one of the following encodings:
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LIBSSH2_KNOWNHOST_KEYENC_RAW or LIBSSH2_KNOWNHOST_KEYENC_BASE64.
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\fIknownhost\fP if set to non-NULL, it must be a pointer to a 'struct
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libssh2_knownhost' pointer that gets filled in to point to info about a known
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host that matches or partially matches.
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.SH RETURN VALUE
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\fIlibssh2_knownhost_check(3)\fP returns info about how well the provided
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host + key pair matched one of the entries in the list of known hosts.
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LIBSSH2_KNOWNHOST_CHECK_FAILURE - something prevented the check to be made
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LIBSSH2_KNOWNHOST_CHECK_NOTFOUND - no host match was found
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LIBSSH2_KNOWNHOST_CHECK_MATCH - hosts and keys match.
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LIBSSH2_KNOWNHOST_CHECK_MISMATCH - host was found, but the keys didn't match!
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.SH AVAILABILITY
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Added in libssh2 1.2.6
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.SH EXAMPLE
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See the ssh2_exec.c example as provided in the tarball.
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.SH SEE ALSO
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.BR libssh2_knownhost_init(3)
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.BR libssh2_knownhost_free(3)
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.BR libssh2_knownhost_add(3)
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