45     if (connection->
group)
    89                   (
const char **) &(connection->
user),
    90                   (
const char **) &(connection->
password),
    91                   (
const char **) &(connection->
hostName),
    92                   (
const char **) &(connection->
port));
 int db_set_connection(dbConnection *connection)
Set default DB connection settings. 
const char * G_getenv_nofatal2(const char *, int)
Get environment variable from specific place. 
void G_setenv2(const char *, const char *, int)
Set environment variable from specific place (updates .gisrc) 
int db_get_connection(dbConnection *connection)
Get default DB connection settings for the current mapset. 
void G_unsetenv2(const char *, int)
Remove name from environment from specific place. 
void G_zero(void *, int)
Zero out a buffer, buf, of length i. 
int db_get_login2(const char *, const char *, const char **, const char **, const char **, const char **)
Get login parameters for driver/database.