mirror of
https://github.com/postgres/postgres.git
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571 lines
13 KiB
C
571 lines
13 KiB
C
/*
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* psql - the PostgreSQL interactive terminal
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*
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* Copyright 2000 by PostgreSQL Global Development Team
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*
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* $Header: /cvsroot/pgsql/src/bin/psql/startup.c,v 1.16 2000/01/18 23:30:24 petere Exp $
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*/
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#include <c.h>
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#include <signal.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <assert.h>
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#ifdef WIN32
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#include <io.h>
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#include <windows.h>
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#else
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#include <unistd.h>
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#endif
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#endif
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#include <libpq-fe.h>
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#include <pqsignal.h>
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#include <version.h>
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#include "settings.h"
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#include "command.h"
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#include "help.h"
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#include "mainloop.h"
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#include "common.h"
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#include "input.h"
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#include "variables.h"
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#include "print.h"
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#include "describe.h"
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PsqlSettings pset;
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static void
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process_psqlrc(void);
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static void
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showVersion(void);
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/* Structures to pass information between the option parsing routine
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* and the main function
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*/
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enum _actions
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{
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ACT_NOTHING = 0,
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ACT_SINGLE_SLASH,
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ACT_LIST_DB,
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ACT_SINGLE_QUERY,
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ACT_FILE
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};
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struct adhoc_opts
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{
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char *dbname;
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char *host;
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char *port;
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char *username;
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enum _actions action;
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char *action_string;
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bool no_readline;
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};
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static void
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parse_options(int argc, char *argv[], struct adhoc_opts * options);
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/*
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*
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* main()
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*
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*/
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int
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main(int argc, char **argv)
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{
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struct adhoc_opts options;
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int successResult;
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char *username = NULL;
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char *password = NULL;
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bool need_pass;
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memset(&pset, 0, sizeof pset);
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if (!strrchr(argv[0], SEP_CHAR))
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pset.progname = argv[0];
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else
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pset.progname = strrchr(argv[0], SEP_CHAR) + 1;
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pset.cur_cmd_source = stdin;
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pset.cur_cmd_interactive = false;
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pset.encoding = PQenv2encoding();
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pset.vars = CreateVariableSpace();
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pset.popt.topt.format = PRINT_ALIGNED;
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pset.queryFout = stdout;
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pset.popt.topt.fieldSep = xstrdup(DEFAULT_FIELD_SEP);
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pset.popt.topt.recordSep = xstrdup(DEFAULT_RECORD_SEP);
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pset.popt.topt.border = 1;
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pset.popt.topt.pager = true;
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SetVariable(pset.vars, "PROMPT1", DEFAULT_PROMPT1);
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SetVariable(pset.vars, "PROMPT2", DEFAULT_PROMPT2);
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SetVariable(pset.vars, "PROMPT3", DEFAULT_PROMPT3);
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SetVariable(pset.vars, "VERSION", PG_VERSION_STR);
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pset.notty = (!isatty(fileno(stdin)) || !isatty(fileno(stdout)));
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/* This is obsolete and will be removed very soon. */
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#ifdef PSQL_ALWAYS_GET_PASSWORDS
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pset.getPassword = true;
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#else
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pset.getPassword = false;
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#endif
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parse_options(argc, argv, &options);
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if (options.action == ACT_LIST_DB)
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options.dbname = "template1";
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if (options.username)
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{
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if (strcmp(options.username, "\001") == 0)
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username = simple_prompt("Username: ", 100, true);
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else
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username = strdup(options.username);
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}
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if (pset.getPassword)
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password = simple_prompt("Password: ", 100, false);
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/* loop until we have a password if requested by backend */
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do
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{
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need_pass = false;
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pset.db = PQsetdbLogin(options.host, options.port, NULL, NULL, options.dbname, username, password);
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if (PQstatus(pset.db) == CONNECTION_BAD &&
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strcmp(PQerrorMessage(pset.db), "fe_sendauth: no password supplied\n") == 0)
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{
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need_pass = true;
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free(password);
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password = NULL;
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password = simple_prompt("Password: ", 100, false);
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}
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} while (need_pass);
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free(username);
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free(password);
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if (PQstatus(pset.db) == CONNECTION_BAD)
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{
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fprintf(stderr, "%s: connection to database \"%s\" failed - %s",
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pset.progname, PQdb(pset.db), PQerrorMessage(pset.db));
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PQfinish(pset.db);
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exit(EXIT_BADCONN);
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}
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PQsetNoticeProcessor(pset.db, NoticeProcessor, NULL);
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/*
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* We need to save the encoding because we want to have it
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* available even if the database connection goes bad.
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*/
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pset.encoding = PQclientencoding(pset.db);
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if (options.action == ACT_LIST_DB)
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{
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int success = listAllDbs(false);
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PQfinish(pset.db);
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exit(!success);
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}
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SetVariable(pset.vars, "DBNAME", PQdb(pset.db));
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SetVariable(pset.vars, "USER", PQuser(pset.db));
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SetVariable(pset.vars, "HOST", PQhost(pset.db));
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SetVariable(pset.vars, "PORT", PQport(pset.db));
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if (!QUIET() && !pset.notty && !options.action)
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{
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printf("Welcome to %s, the PostgreSQL interactive terminal.\n\n"
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"Type: \\copyright for distribution terms\n"
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" \\h for help with SQL commands\n"
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" \\? for help on internal slash commands\n"
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" \\g or terminate with semicolon to execute query\n"
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" \\q to quit\n", pset.progname);
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}
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/* Now find something to do */
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/* process file given by -f */
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if (options.action == ACT_FILE)
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successResult = process_file(options.action_string) ? 0 : 1;
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/* process slash command if one was given to -c */
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else if (options.action == ACT_SINGLE_SLASH)
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successResult = HandleSlashCmds(options.action_string, NULL, NULL) != CMD_ERROR ? 0 : 1;
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/* If the query given to -c was a normal one, send it */
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else if (options.action == ACT_SINGLE_QUERY)
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successResult = SendQuery( options.action_string) ? 0 : 1;
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/* or otherwise enter interactive main loop */
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else
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{
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process_psqlrc();
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initializeInput(options.no_readline ? 0 : 1);
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successResult = MainLoop(stdin);
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finishInput();
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}
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/* clean up */
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PQfinish(pset.db);
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setQFout(NULL);
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DestroyVariableSpace(pset.vars);
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return successResult;
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}
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/*
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* Parse command line options
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*/
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#ifdef WIN32
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/* getopt is not in the standard includes on Win32 */
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int getopt(int, char *const[], const char *);
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/* And it requires progname to be set */
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char *__progname = "psql";
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#endif
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static void
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parse_options(int argc, char *argv[], struct adhoc_opts * options)
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{
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#ifdef HAVE_GETOPT_LONG
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static struct option long_options[] = {
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{"no-align", no_argument, NULL, 'A'},
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{"command", required_argument, NULL, 'c'},
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{"dbname", required_argument, NULL, 'd'},
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{"echo", no_argument, NULL, 'e'},
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{"echo-hidden", no_argument, NULL, 'E'},
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{"file", required_argument, NULL, 'f'},
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{"field-separator", required_argument, NULL, 'F'},
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{"host", required_argument, NULL, 'h'},
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{"html", no_argument, NULL, 'H'},
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{"list", no_argument, NULL, 'l'},
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{"no-readline", no_argument, NULL, 'n'},
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{"output", required_argument, NULL, 'o'},
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{"port", required_argument, NULL, 'p'},
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{"pset", required_argument, NULL, 'P'},
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{"quiet", no_argument, NULL, 'q'},
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{"single-step", no_argument, NULL, 's'},
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{"single-line", no_argument, NULL, 'S'},
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{"tuples-only", no_argument, NULL, 't'},
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{"table-attr", required_argument, NULL, 'T'},
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{"username", required_argument, NULL, 'U'},
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{"expanded", no_argument, NULL, 'x'},
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{"set", required_argument, NULL, 'v'},
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{"variable", required_argument, NULL, 'v'},
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{"version", no_argument, NULL, 'V'},
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{"password", no_argument, NULL, 'W'},
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{"help", no_argument, NULL, '?'},
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};
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int optindex;
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#endif
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extern char *optarg;
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extern int optind;
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int c;
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bool used_old_u_option = false;
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memset(options, 0, sizeof *options);
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#ifdef HAVE_GETOPT_LONG
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while ((c = getopt_long(argc, argv, "Ac:d:eEf:F:lh:Hno:p:P:qsStT:uU:v:VWx?", long_options, &optindex)) != -1)
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#else
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/*
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* Be sure to leave the '-' in here, so we can catch accidental long
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* options.
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*/
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while ((c = getopt(argc, argv, "Ac:d:eEf:F:lh:Hno:p:P:qsStT:uU:v:VWx?-")) != -1)
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#endif
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{
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switch (c)
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{
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case 'A':
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pset.popt.topt.format = PRINT_UNALIGNED;
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break;
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case 'c':
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options->action_string = optarg;
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if (optarg[0] == '\\')
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options->action = ACT_SINGLE_SLASH;
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else
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options->action = ACT_SINGLE_QUERY;
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break;
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case 'd':
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options->dbname = optarg;
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break;
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case 'e':
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SetVariable(pset.vars, "ECHO", "full");
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break;
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case 'E':
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SetVariable(pset.vars, "ECHO_HIDDEN", "");
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break;
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case 'f':
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options->action = ACT_FILE;
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options->action_string = optarg;
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break;
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case 'F':
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pset.popt.topt.fieldSep = strdup(optarg);
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break;
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case 'h':
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options->host = optarg;
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break;
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case 'H':
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pset.popt.topt.format = PRINT_HTML;
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break;
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case 'l':
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options->action = ACT_LIST_DB;
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break;
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case 'n':
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options->no_readline = true;
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break;
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case 'o':
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setQFout(optarg);
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break;
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case 'p':
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options->port = optarg;
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break;
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case 'P':
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{
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char *value;
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char *equal_loc;
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bool result;
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value = xstrdup(optarg);
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equal_loc = strchr(value, '=');
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if (!equal_loc)
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result = do_pset(value, NULL, &pset.popt, true);
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else
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{
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*equal_loc = '\0';
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result = do_pset(value, equal_loc + 1, &pset.popt, true);
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}
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if (!result)
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{
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fprintf(stderr, "%s: couldn't set printing parameter %s\n", pset.progname, value);
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exit(EXIT_FAILURE);
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}
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free(value);
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break;
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}
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case 'q':
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SetVariable(pset.vars, "QUIET", "");
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break;
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case 's':
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SetVariable(pset.vars, "SINGLESTEP", "");
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break;
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case 'S':
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SetVariable(pset.vars, "SINGLELINE", "");
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break;
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case 't':
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pset.popt.topt.tuples_only = true;
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break;
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case 'T':
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pset.popt.topt.tableAttr = xstrdup(optarg);
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break;
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case 'u':
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pset.getPassword = true;
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options->username = "\001"; /* hopefully nobody has that username */
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/* this option is out */
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used_old_u_option = true;
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break;
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case 'U':
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options->username = optarg;
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break;
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case 'x':
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pset.popt.topt.expanded = true;
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break;
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case 'v':
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{
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char *value;
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char *equal_loc;
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value = xstrdup(optarg);
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equal_loc = strchr(value, '=');
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if (!equal_loc)
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{
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if (!DeleteVariable(pset.vars, value))
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{
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fprintf(stderr, "%s: could not delete variable %s\n",
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pset.progname, value);
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exit(EXIT_FAILURE);
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}
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}
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else
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{
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*equal_loc = '\0';
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if (!SetVariable(pset.vars, value, equal_loc + 1))
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{
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fprintf(stderr, "%s: could not set variable %s\n",
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pset.progname, value);
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exit(EXIT_FAILURE);
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}
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}
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free(value);
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break;
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}
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case 'V':
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showVersion();
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exit(EXIT_SUCCESS);
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case 'W':
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pset.getPassword = true;
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break;
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case '?':
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if (strcmp(argv[optind-1], "-?")==0)
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{
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usage();
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exit(EXIT_SUCCESS);
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}
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else
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{
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fputs("Try -? for help.\n", stderr);
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exit(EXIT_FAILURE);
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}
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break;
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#ifndef HAVE_GETOPT_LONG
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case '-':
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fprintf(stderr, "%s was compiled without support for long options.\n"
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"Use -? for help on invocation options.\n", pset.progname);
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exit(EXIT_FAILURE);
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break;
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#endif
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default:
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fputs("Try -? for help.\n", stderr);
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exit(EXIT_FAILURE);
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break;
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}
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}
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/*
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* if we still have arguments, use it as the database name and
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* username
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*/
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while (argc - optind >= 1)
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{
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if (!options->dbname)
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options->dbname = argv[optind];
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else if (!options->username)
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options->username = argv[optind];
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else if (!QUIET())
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fprintf(stderr, "%s: warning: extra option %s ignored\n",
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pset.progname, argv[optind]);
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optind++;
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}
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if (used_old_u_option && !QUIET())
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fprintf(stderr, "%s: Warning: The -u option is deprecated. Use -U.\n", pset.progname);
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}
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/*
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* Load /etc/psqlrc or .psqlrc file, if found.
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*/
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static void
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process_psqlrc(void)
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{
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char *psqlrc;
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char *home;
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#ifdef WIN32
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#define R_OK 0
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#endif
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/* System-wide startup file */
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if (access("/etc/psqlrc-" PG_RELEASE "." PG_VERSION "." PG_SUBVERSION, R_OK) == 0)
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process_file("/etc/psqlrc-" PG_RELEASE "." PG_VERSION "." PG_SUBVERSION);
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else if (access("/etc/psqlrc", R_OK) == 0)
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process_file("/etc/psqlrc");
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/* Look for one in the home dir */
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home = getenv("HOME");
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if (home)
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{
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psqlrc = (char *) malloc(strlen(home) + 20);
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if (!psqlrc)
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{
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fprintf(stderr, "%s: out of memory\n", pset.progname);
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exit(EXIT_FAILURE);
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}
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sprintf(psqlrc, "%s/.psqlrc-" PG_RELEASE "." PG_VERSION "." PG_SUBVERSION, home);
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if (access(psqlrc, R_OK) == 0)
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process_file(psqlrc);
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else
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{
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sprintf(psqlrc, "%s/.psqlrc", home);
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if (access(psqlrc, R_OK) == 0)
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process_file(psqlrc);
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}
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free(psqlrc);
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}
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}
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/* showVersion
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*
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* This output format is intended to match GNU standards.
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*/
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static void
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showVersion(void)
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{
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puts("psql (PostgreSQL) " PG_RELEASE "." PG_VERSION "." PG_SUBVERSION);
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#if defined(USE_READLINE) || defined (USE_HISTORY) || defined(MULTIBYTE)
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fputs("contains ", stdout);
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#ifdef USE_READLINE
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fputs("readline", stdout);
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#define _Feature
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#endif
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#ifdef USE_HISTORY
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#ifdef _Feature
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fputs(", ", stdout);
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#else
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#define _Feature
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#endif
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fputs("history", stdout);
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#endif
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#ifdef MULTIBYTE
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#ifdef _Feature
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fputs(", ", stdout);
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#else
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#define _Feature
|
|
#endif
|
|
fputs("multibyte", stdout);
|
|
#endif
|
|
|
|
#undef _Feature
|
|
|
|
puts(" support");
|
|
#endif
|
|
|
|
puts("Copyright (C) 2000 PostgreSQL Global Development Team");
|
|
puts("Copyright (C) 1996 Regents of the University of California");
|
|
puts("Read the file COPYING or use the command \\copyright to see the");
|
|
puts("usage and distribution terms.");
|
|
}
|