Adding upstream version 15.5.upstream/15.5

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 187 insertions, 0 deletions

diff --git a/src/bin/scripts/dropuser.c b/src/bin/scripts/dropuser.c
new file mode 100644
index 0000000..82c1f35
--- /dev/null
+++ b/src/bin/scripts/dropuser.c
@@ -0,0 +1,187 @@
+/*-------------------------------------------------------------------------
+ *
+ * dropuser
+ *
+ * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/bin/scripts/dropuser.c
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#include "postgres_fe.h"
+#include "common.h"
+#include "common/logging.h"
+#include "common/string.h"
+#include "fe_utils/option_utils.h"
+#include "fe_utils/string_utils.h"
+
+
+static void help(const char *progname);
+
+
+int
+main(int argc, char *argv[])
+{
+	static int	if_exists = 0;
+
+	static struct option long_options[] = {
+		{"host", required_argument, NULL, 'h'},
+		{"port", required_argument, NULL, 'p'},
+		{"username", required_argument, NULL, 'U'},
+		{"no-password", no_argument, NULL, 'w'},
+		{"password", no_argument, NULL, 'W'},
+		{"echo", no_argument, NULL, 'e'},
+		{"interactive", no_argument, NULL, 'i'},
+		{"if-exists", no_argument, &if_exists, 1},
+		{NULL, 0, NULL, 0}
+	};
+
+	const char *progname;
+	int			optindex;
+	int			c;
+
+	char	   *dropuser = NULL;
+	char	   *host = NULL;
+	char	   *port = NULL;
+	char	   *username = NULL;
+	enum trivalue prompt_password = TRI_DEFAULT;
+	ConnParams	cparams;
+	bool		echo = false;
+	bool		interactive = false;
+
+	PQExpBufferData sql;
+
+	PGconn	   *conn;
+	PGresult   *result;
+
+	pg_logging_init(argv[0]);
+	progname = get_progname(argv[0]);
+	set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pgscripts"));
+
+	handle_help_version_opts(argc, argv, "dropuser", help);
+
+	while ((c = getopt_long(argc, argv, "h:p:U:wWei", long_options, &optindex)) != -1)
+	{
+		switch (c)
+		{
+			case 'h':
+				host = pg_strdup(optarg);
+				break;
+			case 'p':
+				port = pg_strdup(optarg);
+				break;
+			case 'U':
+				username = pg_strdup(optarg);
+				break;
+			case 'w':
+				prompt_password = TRI_NO;
+				break;
+			case 'W':
+				prompt_password = TRI_YES;
+				break;
+			case 'e':
+				echo = true;
+				break;
+			case 'i':
+				interactive = true;
+				break;
+			case 0:
+				/* this covers the long options */
+				break;
+			default:
+				/* getopt_long already emitted a complaint */
+				pg_log_error_hint("Try \"%s --help\" for more information.", progname);
+				exit(1);
+		}
+	}
+
+	switch (argc - optind)
+	{
+		case 0:
+			break;
+		case 1:
+			dropuser = argv[optind];
+			break;
+		default:
+			pg_log_error("too many command-line arguments (first is \"%s\")",
+						 argv[optind + 1]);
+			pg_log_error_hint("Try \"%s --help\" for more information.", progname);
+			exit(1);
+	}
+
+	if (dropuser == NULL)
+	{
+		if (interactive)
+		{
+			dropuser = simple_prompt("Enter name of role to drop: ", true);
+		}
+		else
+		{
+			pg_log_error("missing required argument role name");
+			pg_log_error_hint("Try \"%s --help\" for more information.", progname);
+			exit(1);
+		}
+	}
+
+	if (interactive)
+	{
+		printf(_("Role \"%s\" will be permanently removed.\n"), dropuser);
+		if (!yesno_prompt("Are you sure?"))
+			exit(0);
+	}
+
+	cparams.dbname = NULL;		/* this program lacks any dbname option... */
+	cparams.pghost = host;
+	cparams.pgport = port;
+	cparams.pguser = username;
+	cparams.prompt_password = prompt_password;
+	cparams.override_dbname = NULL;
+
+	conn = connectMaintenanceDatabase(&cparams, progname, echo);
+
+	initPQExpBuffer(&sql);
+	appendPQExpBuffer(&sql, "DROP ROLE %s%s;",
+					  (if_exists ? "IF EXISTS " : ""), fmtId(dropuser));
+
+	if (echo)
+		printf("%s\n", sql.data);
+	result = PQexec(conn, sql.data);
+
+	if (PQresultStatus(result) != PGRES_COMMAND_OK)
+	{
+		pg_log_error("removal of role \"%s\" failed: %s",
+					 dropuser, PQerrorMessage(conn));
+		PQfinish(conn);
+		exit(1);
+	}
+
+	PQclear(result);
+	PQfinish(conn);
+	exit(0);
+}
+
+
+static void
+help(const char *progname)
+{
+	printf(_("%s removes a PostgreSQL role.\n\n"), progname);
+	printf(_("Usage:\n"));
+	printf(_("  %s [OPTION]... [ROLENAME]\n"), progname);
+	printf(_("\nOptions:\n"));
+	printf(_("  -e, --echo                show the commands being sent to the server\n"));
+	printf(_("  -i, --interactive         prompt before deleting anything, and prompt for\n"
+			 "                            role name if not specified\n"));
+	printf(_("  -V, --version             output version information, then exit\n"));
+	printf(_("  --if-exists               don't report error if user doesn't exist\n"));
+	printf(_("  -?, --help                show this help, then exit\n"));
+	printf(_("\nConnection options:\n"));
+	printf(_("  -h, --host=HOSTNAME       database server host or socket directory\n"));
+	printf(_("  -p, --port=PORT           database server port\n"));
+	printf(_("  -U, --username=USERNAME   user name to connect as (not the one to drop)\n"));
+	printf(_("  -w, --no-password         never prompt for password\n"));
+	printf(_("  -W, --password            force password prompt\n"));
+	printf(_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
+	printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
+}