src/include/fe_utils/connect_utils.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * Facilities for frontend code to connect to and disconnect from databases.
   4  *
   5  * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
   6  * Portions Copyright (c) 1994, Regents of the University of California
   7  *
   8  * src/include/fe_utils/connect_utils.h
   9  *
  10  *-------------------------------------------------------------------------
  11  */
  12 #ifndef CONNECT_UTILS_H
  13 #define CONNECT_UTILS_H
  14
  15 #include "libpq-fe.h"
  16
  17 enum trivalue
  18 {
  19         TRI_DEFAULT,
  20         TRI_NO,
  21         TRI_YES
  22 };
  23
  24 /* Parameters needed by connectDatabase/connectMaintenanceDatabase */
  25 typedef struct _connParams
  26 {
  27         /* These fields record the actual command line parameters */
  28         const char *dbname;                     /* this may be a connstring! */
  29         const char *pghost;
  30         const char *pgport;
  31         const char *pguser;
  32         enum trivalue prompt_password;
  33         /* If not NULL, this overrides the dbname obtained from command line */
  34         /* (but *only* the DB name, not anything else in the connstring) */
  35         const char *override_dbname;
  36 } ConnParams;
  37
  38 extern PGconn *connectDatabase(const ConnParams *cparams,
  39                                                            const char *progname,
  40                                                            bool echo, bool fail_ok,
  41                                                            bool allow_password_reuse);
  42
  43 extern PGconn *connectMaintenanceDatabase(ConnParams *cparams,
  44                                                                                   const char *progname, bool echo);
  45
  46 extern void disconnectDatabase(PGconn *conn);
  47
  48 #endif                                                  /* CONNECT_UTILS_H */