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Implement ssh_options_get(ssh_session, enum ssh_options_e, char**).

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This commit is contained in:
Lee Hambley
2011-10-28 10:25:03 +02:00
committed by Andreas Schneider
parent d8d9755b7d
commit 6bd95b50f5
3 changed files with 134 additions and 0 deletions
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86
src/options.c
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@@ -778,6 +778,92 @@ int ssh_options_set(ssh_session session, enum ssh_options_e type,
return 0;
}
/**
* @brief This function can get ssh options, it does not support all options provided for
* ssh options set, but mostly those which a user-space program may care about having
* trusted the ssh driver to infer these values from underlaying configuration files.
* It operates only on those SSH_OPTIONS_* which return char*. If you wish to receive
* the port then please use ssh_options_get_port() which returns an unsigned int.
*
* @param session An allocated SSH session structure.
*
* @param type The option type to get. This could be one of the
* following:
*
* - SSH_OPTIONS_HOST:
* The hostname or ip address to connect to (const char *).
*
* - SSH_OPTIONS_USER:
* The username for authentication (const char *).\n
* \n when not explicitly set this will be inferred from the
* ~/.ssh/config file.
*
* - SSH_OPTIONS_IDENTITY:
* Set the identity file name (const char *,format string).\n
* \n
* By default identity, id_dsa and id_rsa are checked.\n
* \n
* The identity file used authenticate with public key.
* It may include "%s" which will be replaced by the
* user home directory.
*
* @param value The value to get into. As a char**, space will be
* allocated by the function for the value, it is
* your responsibility to free the memory using
* ssh_free().
*
* @return 0 on success, < 0 on error.
*/
int ssh_options_get(ssh_session session, enum ssh_options_e type, char** value)
{
if (session == NULL) {
return -1;
}
switch(type)
{
case SSH_OPTIONS_HOST: {
if (session->host == NULL) {
ssh_set_error_invalid(session);
return -1;
}
*value = strdup(session->host);
if (*value == NULL) {
ssh_set_error_oom(session);
return -1;
}
break;
}
case SSH_OPTIONS_USER: {
if (session->username == NULL) {
ssh_set_error_invalid(session);
return -1;
}
*value = strdup(session->username);
if (*value == NULL) {
ssh_set_error_oom(session);
return -1;
}
break;
}
case SSH_OPTIONS_IDENTITY: {
if (session->identity == NULL) {
ssh_set_error_invalid(session);
return -1;
}
*value = strdup(session->identity->root->data);
if(*value == NULL){
ssh_set_error_oom(session);
return -1;
}
break;
}
default:
ssh_set_error(session, SSH_REQUEST_DENIED, "Unknown ssh option %d", type);
return -1;
break;
}
return 0;
}
/**
* @brief Parse command line arguments.