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Man Pages


Manual Reference Pages  -  LIBSSH2_USERAUTH_LIST (3)

NAME

libssh2_userauth_list - list supported authentication methods

CONTENTS

Synopsis
Description
Return Value
Errors
See Also

SYNOPSIS

#include <libssh2.h>

char * libssh2_userauth_list(LIBSSH2_SESSION *session, const char *username, unsigned int username_len);

DESCRIPTION

session - Session instance as returned by libssh2_session_init_ex(3)

username - Username which will be used while authenticating. Note that most server implementations do not permit attempting authentication with different usernames between requests. Therefore this must be the same username you will use on later userauth calls.

username_len - Length of username parameter.

Send a SSH_USERAUTH_NONE request to the remote host. Unless the remote host is configured to accept none as a viable authentication scheme (unlikely), it will return SSH_USERAUTH_FAILURE along with a listing of what authentication schemes it does support. In the unlikely event that none authentication succeeds, this method with return NULL. This case may be distinguished from a failing case by examining libssh2_userauth_authenticated(3).

RETURN VALUE

On success a comma delimited list of supported authentication schemes. This list is internally managed by libssh2. On failure returns NULL.

ERRORS

LIBSSH2_ERROR_ALLOC - An internal memory allocation call failed.

LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.

LIBSSH2_ERROR_EAGAIN - Marked for non-blocking I/O but the call

SEE ALSO

libssh2_session_init_ex(3)
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libssh2 0.15 LIBSSH2_USERAUTH_LIST (3) 1 Jun 2007

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