[monitoring-plugins] Removing is_pg_dbname alltogether, using postgres ...
GitHub
git at monitoring-plugins.org
Fri Nov 4 19:20:11 CET 2022
Module: monitoring-plugins
Branch: master
Commit: 2d9c6276d0a380f831bf94734359f071d0c7e958
Author: waja <waja at users.noreply.github.com>
Committer: GitHub <noreply at github.com>
Date: Fri Nov 4 19:16:01 2022 +0100
URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=2d9c627
Removing is_pg_dbname alltogether,using postgres API. (Closes: #1660) (#1803)
The problem is that check_pgsql validates the Database name and has different assumptions
that postgres itself.
I fail to see a reason to validate the database name here. Postgres'es API should
do this - So i would suggest a fix like this by removing is_pg_dbname alltogether.
Co-authored-by: Florian Lohoff <f at zz.de>
---
plugins/check_pgsql.c | 48 ++++--------------------------------------------
1 file changed, 4 insertions(+), 44 deletions(-)
diff --git a/plugins/check_pgsql.c b/plugins/check_pgsql.c
index c893386..c26cd43 100644
--- a/plugins/check_pgsql.c
+++ b/plugins/check_pgsql.c
@@ -69,7 +69,6 @@ int process_arguments (int, char **);
int validate_arguments (void);
void print_usage (void);
void print_help (void);
-int is_pg_dbname (char *);
int is_pg_logname (char *);
int do_query (PGconn *, char *);
@@ -347,10 +346,10 @@ process_arguments (int argc, char **argv)
pgport = optarg;
break;
case 'd': /* database name */
- if (!is_pg_dbname (optarg)) /* checks length and valid chars */
- usage2 (_("Database name is not valid"), optarg);
- else /* we know length, and know optarg is terminated, so us strcpy */
- snprintf(dbName, NAMEDATALEN, "%s", optarg);
+ if (strlen(optarg) >= NAMEDATALEN) {
+ usage2 (_("Database name exceeds the maximum length"), optarg);
+ }
+ snprintf(dbName, NAMEDATALEN, "%s", optarg);
break;
case 'l': /* login name */
if (!is_pg_logname (optarg))
@@ -414,45 +413,6 @@ validate_arguments ()
return OK;
}
-
-/******************************************************************************
-
-@@-
-<sect3>
-<title>is_pg_dbname</title>
-
-<para>&PROTO_is_pg_dbname;</para>
-
-<para>Given a database name, this function returns TRUE if the string
-is a valid PostgreSQL database name, and returns false if it is
-not.</para>
-
-<para>Valid PostgreSQL database names are less than &NAMEDATALEN;
-characters long and consist of letters, numbers, and underscores. The
-first character cannot be a number, however.</para>
-
-</sect3>
--@@
-******************************************************************************/
-
-
-
-int
-is_pg_dbname (char *dbname)
-{
- char txt[NAMEDATALEN];
- char tmp[NAMEDATALEN];
- if (strlen (dbname) > NAMEDATALEN - 1)
- return (FALSE);
- strncpy (txt, dbname, NAMEDATALEN - 1);
- txt[NAMEDATALEN - 1] = 0;
- if (sscanf (txt, "%[_a-zA-Z]%[^_a-zA-Z0-9-]", tmp, tmp) == 1)
- return (TRUE);
- if (sscanf (txt, "%[_a-zA-Z]%[_a-zA-Z0-9-]%[^_a-zA-Z0-9-]", tmp, tmp, tmp) ==
- 2) return (TRUE);
- return (FALSE);
-}
-
/**
the tango program should eventually create an entity here based on the
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