From 2d9c6276d0a380f831bf94734359f071d0c7e958 Mon Sep 17 00:00:00 2001 From: waja Date: Fri, 4 Nov 2022 19:16:01 +0100 Subject: 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 --- 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 c893386c..c26cd439 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; } - -/****************************************************************************** - -@@- - -is_pg_dbname - -&PROTO_is_pg_dbname; - -Given a database name, this function returns TRUE if the string -is a valid PostgreSQL database name, and returns false if it is -not. - -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. - - --@@ -******************************************************************************/ - - - -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 -- cgit v1.2.3