cli: fix property matching

@ret was not initialized when there was only one partial match.

Also, refactor the code to return all matching values.

Fixes: 3fd9bf9d7d

https://github.com/NetworkManager/NetworkManager/pull/123

clients/common/nm-client-utils.c

@@ -175,11 +175,10 @@ nmc_string_is_valid (const char *input, const char **allowed, GError **error)
 {
 	const char **p;
 	size_t input_ln, p_len;
+	const char *partial_match = NULL;
 	gboolean ambiguous = FALSE;
-	const char *prev_match = NULL;
-	const char *ret = NULL;
 
-	g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+	g_return_val_if_fail (!error || !*error, NULL);
 
 	if (!input || !*input)
 		goto finish;
@@ -188,27 +187,34 @@ nmc_string_is_valid (const char *input, const char **allowed, GError **error)
 	for (p = allowed; p && *p; p++) {
 		p_len = strlen (*p);
 		if (g_ascii_strncasecmp (input, *p, input_ln) == 0) {
-			if (input_ln == p_len) {
-				ret = *p;
-				ambiguous = FALSE;
-				break;
-			}
-			if (!prev_match) {
-				prev_match = *p;
-			} else {
-				ret = *p;
+			if (input_ln == p_len)
+				return *p;
+			if (!partial_match)
+				partial_match = *p;
+			else
 				ambiguous = TRUE;
-			}
 		}
 	}
+
 	if (ambiguous) {
-		g_set_error (error, 1, 1, _("'%s' is ambiguous (%s x %s)"),
-		             input, prev_match, ret);
+		GString *candidates = g_string_new ("");
+
+		for (p = allowed; *p; p++) {
+			if (g_ascii_strncasecmp (input, *p, input_ln) == 0) {
+				if (candidates->len > 0)
+					g_string_append (candidates, ", ");
+				g_string_append (candidates, *p);
+			}
+		}
+		g_set_error (error, 1, 1, _("'%s' is ambiguous: %s"),
+		             input, candidates->str);
+		g_string_free (candidates, TRUE);
 		return NULL;
 	}
 finish:
-	if (ret == NULL) {
+	if (!partial_match) {
 		char *valid_vals = g_strjoinv (", ", (char **) allowed);
+
 		if (!input || !*input)
 			g_set_error (error, 1, 0, _("missing name, try one of [%s]"), valid_vals);
 		else
@@ -216,7 +222,8 @@ finish:
 
 		g_free (valid_vals);
 	}
-	return ret;
+
+	return partial_match;
 }
 
 gboolean

clients/tests/test-client.check-on-disk/Makefile.am

@@ -105,4 +105,10 @@ clients_tests_expected_files = \
 	clients/tests/test-client.check-on-disk/test_003-052.expected \
 	clients/tests/test-client.check-on-disk/test_003-053.expected \
 	clients/tests/test-client.check-on-disk/test_003-054.expected \
+	clients/tests/test-client.check-on-disk/test_004-001.expected \
+	clients/tests/test-client.check-on-disk/test_004-002.expected \
+	clients/tests/test-client.check-on-disk/test_004-003.expected \
+	clients/tests/test-client.check-on-disk/test_004-004.expected \
+	clients/tests/test-client.check-on-disk/test_004-005.expected \
+	clients/tests/test-client.check-on-disk/test_004-006.expected \
 	$(NULL)

clients/tests/test-client.check-on-disk/test_004-001.expected

@@ -0,0 +1,13 @@
+location: clients/tests/test-client.py:722:test_004()/1
+cmd: $NMCLI c add type wifi ifname '*' ssid foobar con-name con-xx1
+lang: C
+returncode: 0
+stdout: 80 bytes
+>>>
+Connection 'con-xx1' (UUID-con-xx1-REPLACED-REPLACED-REPLA) successfully added.
+
+<<<
+stderr: 0 bytes
+>>>
+
+<<<

clients/tests/test-client.check-on-disk/test_004-002.expected

@@ -0,0 +1,13 @@
+location: clients/tests/test-client.py:724:test_004()/2
+cmd: $NMCLI connection mod con-xx1 ip.gateway ''
+lang: C
+returncode: 2
+stdout: 0 bytes
+>>>
+
+<<<
+stderr: 75 bytes
+>>>
+Error: invalid or not allowed setting 'ip': 'ip' is ambiguous: ipv4, ipv6.
+
+<<<

clients/tests/test-client.check-on-disk/test_004-003.expected

@@ -0,0 +1,12 @@
+location: clients/tests/test-client.py:725:test_004()/3
+cmd: $NMCLI connection mod con-xx1 ipv4.gateway 172.16.0.1
+lang: C
+returncode: 0
+stdout: 0 bytes
+>>>
+
+<<<
+stderr: 0 bytes
+>>>
+
+<<<

clients/tests/test-client.check-on-disk/test_004-004.expected

@@ -0,0 +1,12 @@
+location: clients/tests/test-client.py:726:test_004()/4
+cmd: $NMCLI connection mod con-xx1 ipv6.gateway ::99
+lang: C
+returncode: 0
+stdout: 0 bytes
+>>>
+
+<<<
+stderr: 0 bytes
+>>>
+
+<<<

clients/tests/test-client.check-on-disk/test_004-005.expected

@@ -0,0 +1,13 @@
+location: clients/tests/test-client.py:727:test_004()/5
+cmd: $NMCLI connection mod con-xx1 802.abc ''
+lang: C
+returncode: 2
+stdout: 0 bytes
+>>>
+
+<<<
+stderr: 116 bytes
+>>>
+Error: invalid or not allowed setting '802': '802' is ambiguous: 802-11-wireless, 802-11-wireless-security, 802-1x.
+
+<<<

clients/tests/test-client.check-on-disk/test_004-006.expected

@@ -0,0 +1,12 @@
+location: clients/tests/test-client.py:728:test_004()/6
+cmd: $NMCLI connection mod con-xx1 802-11-wireless.band a
+lang: C
+returncode: 0
+stdout: 0 bytes
+>>>
+
+<<<
+stderr: 0 bytes
+>>>
+
+<<<

clients/tests/test-client.py

@@ -711,6 +711,21 @@ class TestNmcli(NmTestBase):
         self.call_nmcli_l(['con', 's', 'ethernet'],
                           replace_stdout = replace_stdout)
 
+    def test_004(self):
+        self.init_001()
+
+        replace_stdout = []
+
+        replace_stdout.append((lambda: self.srv.findConnectionUuid('con-xx1'), 'UUID-con-xx1-REPLACED-REPLACED-REPLA'))
+
+        self.call_nmcli(['c', 'add', 'type', 'wifi', 'ifname', '*', 'ssid', 'foobar', 'con-name', 'con-xx1'],
+                        replace_stdout = replace_stdout)
+
+        self.call_nmcli(['connection', 'mod', 'con-xx1', 'ip.gateway', ''])
+        self.call_nmcli(['connection', 'mod', 'con-xx1', 'ipv4.gateway', '172.16.0.1'])
+        self.call_nmcli(['connection', 'mod', 'con-xx1', 'ipv6.gateway', '::99'])
+        self.call_nmcli(['connection', 'mod', 'con-xx1', '802.abc', ''])
+        self.call_nmcli(['connection', 'mod', 'con-xx1', '802-11-wireless.band', 'a'])
 
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