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Get rid of pgpass_from_client tracking inside libpq --- given the conclusion
that presence of the password in the conninfo string must be checked *before* risking a connection attempt, there is no point in checking it afterwards. This makes the specification of PQconnectionUsedPassword() a bit simpler and perhaps more generally useful, too.
This commit is contained in:
Tom Lane
parent
cae7ad906a
commit
c52aab5525
@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.264 2008/09/22 13:55:13 tgl Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.265 2008/09/22 14:21:44 tgl Exp $ -->
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<chapter id="libpq">
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<title><application>libpq</application> - C Library</title>
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@ -1201,7 +1201,6 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg);
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<synopsis>
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int PQconnectionNeedsPassword(const PGconn *conn);
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</synopsis>
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</para>
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<para>
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@ -1216,19 +1215,16 @@ PQconninfoOption *PQconninfoParse(const char *conninfo, char **errmsg);
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<listitem>
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<para>
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Returns true (1) if the connection authentication method
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used a caller-supplied password. Returns false (0) if not.
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used a password. Returns false (0) if not.
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<synopsis>
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int PQconnectionUsedPassword(const PGconn *conn);
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</synopsis>
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</para>
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<para>
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This function detects whether a password supplied to the connection
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function was actually used. Passwords obtained from other
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sources (such as the <filename>.pgpass</> file) are not considered
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caller-supplied.
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This function can be applied after either a failed or successful
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connection attempt to detect whether the server demanded a password.
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</para>
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</listitem>
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</varlistentry>
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.361 2008/09/22 13:55:14 tgl Exp $
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* $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.362 2008/09/22 14:21:44 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -232,8 +232,7 @@ static PGconn *makeEmptyPGconn(void);
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static void freePGconn(PGconn *conn);
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static void closePGconn(PGconn *conn);
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static PQconninfoOption *conninfo_parse(const char *conninfo,
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PQExpBuffer errorMessage, bool use_defaults,
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bool *password_from_string);
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PQExpBuffer errorMessage, bool use_defaults);
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static char *conninfo_getval(PQconninfoOption *connOptions,
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const char *keyword);
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static void defaultNoticeReceiver(void *arg, const PGresult *res);
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@ -377,8 +376,7 @@ connectOptions1(PGconn *conn, const char *conninfo)
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/*
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* Parse the conninfo string
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*/
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connOptions = conninfo_parse(conninfo, &conn->errorMessage, true,
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&conn->pgpass_from_client);
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connOptions = conninfo_parse(conninfo, &conn->errorMessage, true);
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if (connOptions == NULL)
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{
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conn->status = CONNECTION_BAD;
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@ -474,7 +472,6 @@ connectOptions2(PGconn *conn)
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conn->dbName, conn->pguser);
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if (conn->pgpass == NULL)
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conn->pgpass = strdup(DefaultPassword);
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conn->pgpass_from_client = false;
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}
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/*
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@ -560,14 +557,12 @@ PQconninfoOption *
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PQconndefaults(void)
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{
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PQExpBufferData errorBuf;
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bool password_from_string;
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PQconninfoOption *connOptions;
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initPQExpBuffer(&errorBuf);
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if (errorBuf.data == NULL)
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return NULL; /* out of memory already :-( */
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connOptions = conninfo_parse("", &errorBuf, true,
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&password_from_string);
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connOptions = conninfo_parse("", &errorBuf, true);
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termPQExpBuffer(&errorBuf);
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return connOptions;
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}
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@ -668,7 +663,6 @@ PQsetdbLogin(const char *pghost, const char *pgport, const char *pgoptions,
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if (conn->pgpass)
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free(conn->pgpass);
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conn->pgpass = strdup(pwd);
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conn->pgpass_from_client = true;
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}
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/*
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@ -3127,7 +3121,6 @@ PQconninfoOption *
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PQconninfoParse(const char *conninfo, char **errmsg)
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{
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PQExpBufferData errorBuf;
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bool password_from_string;
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PQconninfoOption *connOptions;
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if (errmsg)
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@ -3135,8 +3128,7 @@ PQconninfoParse(const char *conninfo, char **errmsg)
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initPQExpBuffer(&errorBuf);
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if (errorBuf.data == NULL)
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return NULL; /* out of memory already :-( */
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connOptions = conninfo_parse(conninfo, &errorBuf, false,
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&password_from_string);
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connOptions = conninfo_parse(conninfo, &errorBuf, false);
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if (connOptions == NULL && errmsg)
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*errmsg = errorBuf.data;
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else
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@ -3152,12 +3144,10 @@ PQconninfoParse(const char *conninfo, char **errmsg)
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* left in errorMessage.
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* Defaults are supplied (from a service file, environment variables, etc)
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* for unspecified options, but only if use_defaults is TRUE.
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* *password_from_string is set TRUE if we got a password from the
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* conninfo string, otherwise FALSE.
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*/
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static PQconninfoOption *
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conninfo_parse(const char *conninfo, PQExpBuffer errorMessage,
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bool use_defaults, bool *password_from_string)
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bool use_defaults)
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{
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char *pname;
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char *pval;
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@ -3168,8 +3158,6 @@ conninfo_parse(const char *conninfo, PQExpBuffer errorMessage,
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PQconninfoOption *options;
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PQconninfoOption *option;
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*password_from_string = false; /* default result */
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/* Make a working copy of PQconninfoOptions */
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options = malloc(sizeof(PQconninfoOptions));
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if (options == NULL)
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@ -3326,12 +3314,6 @@ conninfo_parse(const char *conninfo, PQExpBuffer errorMessage,
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free(buf);
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return NULL;
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}
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/*
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* Special handling for password
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*/
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if (strcmp(option->keyword, "password") == 0)
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*password_from_string = (option->val[0] != '\0');
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}
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/* Done with the modifiable input string */
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@ -3597,7 +3579,7 @@ PQconnectionUsedPassword(const PGconn *conn)
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{
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if (!conn)
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return false;
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if (conn->password_needed && conn->pgpass_from_client)
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if (conn->password_needed)
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return true;
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else
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return false;
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@ -12,7 +12,7 @@
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* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/interfaces/libpq/libpq-int.h,v 1.133 2008/09/19 16:40:40 tgl Exp $
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* $PostgreSQL: pgsql/src/interfaces/libpq/libpq-int.h,v 1.134 2008/09/22 14:21:44 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -290,7 +290,6 @@ struct pg_conn
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char *dbName; /* database name */
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char *pguser; /* Postgres username and password, if any */
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char *pgpass;
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bool pgpass_from_client; /* did password come from connect args? */
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char *sslmode; /* SSL mode (require,prefer,allow,disable) */
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#if defined(KRB5) || defined(ENABLE_GSS) || defined(ENABLE_SSPI)
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char *krbsrvname; /* Kerberos service name */
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