diff --git a/src/backend/commands/variable.c b/src/backend/commands/variable.c index 30173e4cab..b1d970b9ab 100644 --- a/src/backend/commands/variable.c +++ b/src/backend/commands/variable.c @@ -9,7 +9,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/commands/variable.c,v 1.105.4.2 2005/08/08 23:39:14 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/commands/variable.c,v 1.105.4.3 2006/02/12 22:33:14 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -619,7 +619,9 @@ assign_client_encoding(const char *value, bool doit, GucSource source) * by the numeric userid, followed by a comma, followed by the user name. * This cannot be confused with a plain user name because of the NAMEDATALEN * limit on names, so we can tell whether we're being passed an initial - * username or a saved/restored value. + * username or a saved/restored value. (NOTE: we rely on guc.c to have + * properly truncated any incoming value, but not to truncate already-stored + * values. See GUC_IS_NAME processing.) */ extern char *session_authorization_string; /* in guc.c */ diff --git a/src/backend/utils/mb/encnames.c b/src/backend/utils/mb/encnames.c index 0c28438630..555231f7c1 100644 --- a/src/backend/utils/mb/encnames.c +++ b/src/backend/utils/mb/encnames.c @@ -2,7 +2,7 @@ * Encoding names and routines for work with it. All * in this file is shared bedween FE and BE. * - * $PostgreSQL: pgsql/src/backend/utils/mb/encnames.c,v 1.22 2004/12/04 18:19:31 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/utils/mb/encnames.c,v 1.22.4.1 2006/02/12 22:33:14 tgl Exp $ */ #ifdef FRONTEND #include "postgres_fe.h" @@ -434,7 +434,7 @@ pg_char_to_encname_struct(const char *name) if (name == NULL || *name == '\0') return NULL; - if (strlen(name) > NAMEDATALEN) + if (strlen(name) >= NAMEDATALEN) { #ifdef FRONTEND fprintf(stderr, "encoding name too long\n"); diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c index dc4d290ebc..c1fa6fc568 100644 --- a/src/backend/utils/misc/guc.c +++ b/src/backend/utils/misc/guc.c @@ -10,7 +10,7 @@ * Written by Peter Eisentraut . * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.252.4.2 2005/10/20 20:06:03 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.252.4.3 2006/02/12 22:33:14 tgl Exp $ * *-------------------------------------------------------------------- */ @@ -44,6 +44,7 @@ #include "optimizer/prep.h" #include "parser/parse_expr.h" #include "parser/parse_relation.h" +#include "parser/scansup.h" #include "postmaster/bgwriter.h" #include "postmaster/syslogger.h" #include "postmaster/postmaster.h" @@ -1426,7 +1427,7 @@ static struct config_string ConfigureNamesString[] = {"client_encoding", PGC_USERSET, CLIENT_CONN_LOCALE, gettext_noop("Sets the client's character set encoding."), NULL, - GUC_REPORT + GUC_IS_NAME | GUC_REPORT }, &client_encoding_string, "SQL_ASCII", assign_client_encoding, NULL @@ -1506,7 +1507,8 @@ static struct config_string ConfigureNamesString[] = { {"default_tablespace", PGC_USERSET, CLIENT_CONN_STATEMENT, gettext_noop("Sets the default tablespace to create tables and indexes in."), - gettext_noop("An empty string selects the database's default tablespace.") + gettext_noop("An empty string selects the database's default tablespace."), + GUC_IS_NAME }, &default_tablespace, "", assign_default_tablespace, NULL @@ -1646,7 +1648,7 @@ static struct config_string ConfigureNamesString[] = {"server_encoding", PGC_INTERNAL, CLIENT_CONN_LOCALE, gettext_noop("Sets the server (database) character set encoding."), NULL, - GUC_REPORT | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + GUC_IS_NAME | GUC_REPORT | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE }, &server_encoding_string, "SQL_ASCII", NULL, NULL @@ -1668,7 +1670,7 @@ static struct config_string ConfigureNamesString[] = {"session_authorization", PGC_USERSET, UNGROUPED, gettext_noop("Sets the session user name."), NULL, - GUC_REPORT | GUC_NO_SHOW_ALL | GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE + GUC_IS_NAME | GUC_REPORT | GUC_NO_SHOW_ALL | GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE }, &session_authorization_string, NULL, assign_session_authorization, show_session_authorization @@ -3644,6 +3646,12 @@ set_config_option(const char *name, const char *value, newval = guc_strdup(elevel, value); if (newval == NULL) return false; + /* + * The only sort of "parsing" check we need to do is + * apply truncation if GUC_IS_NAME. + */ + if (conf->gen.flags & GUC_IS_NAME) + truncate_identifier(newval, strlen(newval), true); } else if (conf->reset_val) { diff --git a/src/include/utils/guc_tables.h b/src/include/utils/guc_tables.h index 39d2af3bab..4c26e10aae 100644 --- a/src/include/utils/guc_tables.h +++ b/src/include/utils/guc_tables.h @@ -7,7 +7,7 @@ * * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * - * $PostgreSQL: pgsql/src/include/utils/guc_tables.h,v 1.19 2004/12/31 22:03:46 pgsql Exp $ + * $PostgreSQL: pgsql/src/include/utils/guc_tables.h,v 1.19.4.1 2006/02/12 22:33:14 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -125,6 +125,7 @@ struct config_generic #define GUC_DISALLOW_IN_FILE 0x0040 /* can't set in postgresql.conf */ #define GUC_CUSTOM_PLACEHOLDER 0x0080 /* placeholder for custom variable */ #define GUC_SUPERUSER_ONLY 0x0100 /* show only to superusers */ +#define GUC_IS_NAME 0x0200 /* limit string to NAMEDATALEN-1 */ /* bit values in status field */ #define GUC_HAVE_TENTATIVE 0x0001 /* tentative value is defined */