/**
* @brief
* Makes a connection to the server, returning the pbs_connect() result.
*
* @param[in] server - hostname of the pbs server to connect to
* @param[in] extend - extend data to send along with the connection.
*
* @return int
* @retval connection success
* @retval 0 fail
*/
int
cnt2server_extend(char *server, char *extend)
{
int connect;
#if defined(PBS_SECURITY) && (PBS_SECURITY == KRB5)
if (!getenv("PBSPRO_IGNORE_KERBEROS") && !pbsgss_can_get_creds()) {
fprintf(stderr, "No Kerberos credentials found. Set \"PBSPRO_IGNORE_KERBEROS\" environment variable to skip this check.\n");
exit(1);
}
#endif
connect = pbs_connect_extend(server, extend);
if (connect <= 0) {
if (pbs_errno > PBSE_) {
switch (pbs_errno) {
case PBSE_BADHOST:
fprintf(stderr, "Unknown Host.\n");
break;
case PBSE_NOCONNECTS:
fprintf(stderr, "Too many open connections.\n");
break;
case PBSE_NOSERVER:
fprintf(stderr, "No default server name.\n");
break;
case PBSE_SYSTEM:
fprintf(stderr, "System call failure.\n");
break;
case PBSE_PERM:
fprintf(stderr, "No Permission.\n");
break;
case PBSE_PROTOCOL:
fprintf(stderr, "Communication failure.\n");
break;
}
} else if (errno != 0)
perror(NULL);
return (connect);
}
/*
* Disable Nagle's algorithm on the TCP connection to server.
* Nagle's algorithm is hurting cmd-server communication.
*/
if (pbs_connection_set_nodelay(connect) == -1) {
fprintf(stderr, "Cannot set nodelay on connection %d (errno=%d)\n",
connect, pbs_errno);
return (PBSE_SYSTEM);
}
return (connect);
}
/**
* @brief
* Makes a connection to the server, returning the pbs_connect() result.
*
* @param[in] server - hostname of the pbs server to connect to
* @param[in] extend - extend data to send along with the connection.
*
* @return int
* @retval connection success
* @retval 0 fail
*/
int
cnt2server_extend(char *server, char *extend)
{
int connect;
connect = pbs_connect_extend(server, extend);
if (connect <= 0) {
if (pbs_errno > PBSE_) {
switch (pbs_errno) {
case PBSE_BADHOST:
fprintf(stderr, "Unknown Host.\n");
break;
case PBSE_NOCONNECTS:
fprintf(stderr, "Too many open connections.\n");
break;
case PBSE_NOSERVER:
fprintf(stderr, "No default server name.\n");
break;
case PBSE_SYSTEM:
fprintf(stderr, "System call failure.\n");
break;
case PBSE_PERM:
fprintf(stderr, "No Permission.\n");
break;
case PBSE_PROTOCOL:
fprintf(stderr, "Communication failure.\n");
break;
}
} else if (errno != 0)
perror(NULL);
return (connect);
}
return (connect);
}
/**
* @brief
* A wrapper progarm to pbs_connect_extend() but this one not
* passing any 'extend' data to the connection.
*
* @param[in] server - server - the hostname of the pbs server to connect to.
*
* @retval int - return value of pbs_connect_extend().
*/
int
__pbs_connect(char *server)
{
return (pbs_connect_extend(server, NULL));
}
