add user parameter for db connection

CHANGELOG.md

@@ -6,6 +6,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [21.4] (unreleased)
 
+### Added
+- Parameter `--db-user` to set a database user [#1327](https://github.com/greenbone/gvmd/pull/1327)
+
 ### Changed
 - Move EXE credential generation to a Python script [#1260](https://github.com/greenbone/gvmd/pull/1260) [#1262](https://github.com/greenbone/gvmd/pull/1262)
 - Clarify documentation for --scan-host parameter [#1277](https://github.com/greenbone/gvmd/pull/1277)

src/gvmd.c

@@ -219,7 +219,7 @@ static gnutls_certificate_credentials_t client_credentials;
 /**
  * @brief Database connection info.
  */
-static db_conn_info_t database = { NULL, NULL, NULL };
+static db_conn_info_t database = { NULL, NULL, NULL, NULL };
 
 /**
  * @brief Is this process parent or child?
@@ -1764,6 +1764,10 @@ gvmd (int argc, char** argv)
           &(database.port),
           "Use <port> as database port or socket extension for PostgreSQL.",
           "<port>" },
+        { "db-user", '\0', 0, G_OPTION_ARG_STRING,
+          &(database.user),
+          "Use <user> as database user.",
+          "<user>" },
         { "decrypt-all-credentials", '\0', G_OPTION_FLAG_HIDDEN,
           G_OPTION_ARG_NONE,
           &decrypt_all_credentials,

src/manage.h

@@ -48,6 +48,7 @@ typedef struct {
   gchar *name; ///< The database name
   gchar *host; ///< The database host or socket directory
   gchar *port; ///< The database port or socket file extension
+  gchar *user; ///< The database user name
 } db_conn_info_t;
 
 /**

src/manage_sql.c

@@ -16361,6 +16361,7 @@ init_manage_internal (GSList *log_config,
   gvmd_db_conn_info.name = database->name ? g_strdup (database->name) : NULL;
   gvmd_db_conn_info.host = database->host ? g_strdup (database->host) : NULL;
   gvmd_db_conn_info.port = database->port ? g_strdup (database->port) : NULL;
+  gvmd_db_conn_info.user = database->user ? g_strdup (database->user) : NULL;
 
   if (fork_connection)
     manage_fork_connection = fork_connection;

src/sql_pg.c

@@ -280,12 +280,14 @@ sql_open (const db_conn_info_t *database)
   conn_info = g_strdup_printf ("dbname='%s'"
                                " host='%s'"
                                " port='%s'"
+                               " user='%s'"
                                " application_name='%s'",
                                database->name
                                 ? database->name
                                 : sql_default_database (),
                                database->host ? database->host : "",
                                database->port ? database->port : "",
+                               database->user ? database->user : "",
                                "gvmd");
   conn = PQconnectStart (conn_info);
   g_free (conn_info);