swanctl: Allow passing a custom config file for each --load* command

Mainly for debugging, but could also be used to e.g. use a separate file
for connections and secrets.

src/swanctl/commands/load_all.c

@@ -31,8 +31,8 @@ static int load_all(vici_conn_t *conn)
 	bool clear = FALSE, noprompt = FALSE;
 	command_format_options_t format = COMMAND_FORMAT_NONE;
 	settings_t *cfg;
+	char *arg, *file = SWANCTL_CONF;
 	int ret = 0;
-	char *arg;
 
 	while (TRUE)
 	{
@@ -52,6 +52,9 @@ static int load_all(vici_conn_t *conn)
 			case 'r':
 				format |= COMMAND_FORMAT_RAW;
 				continue;
+			case 'f':
+				file = arg;
+				continue;
 			case EOF:
 				break;
 			default:
@@ -60,10 +63,10 @@ static int load_all(vici_conn_t *conn)
 		break;
 	}
 
-	cfg = settings_create(SWANCTL_CONF);
+	cfg = settings_create(file);
 	if (!cfg)
 	{
-		fprintf(stderr, "parsing '%s' failed\n", SWANCTL_CONF);
+		fprintf(stderr, "parsing '%s' failed\n", file);
 		return EINVAL;
 	}
 
@@ -104,6 +107,7 @@ static void __attribute__ ((constructor))reg()
 			{"noprompt",	'n', 0, "do not prompt for passwords"},
 			{"raw",			'r', 0, "dump raw response message"},
 			{"pretty",		'P', 0, "dump raw response message in pretty print"},
+			{"file",		'f', 1, "custom path to swanctl.conf"},
 		}
 	});
 }

src/swanctl/commands/load_authorities.c

@@ -310,7 +310,7 @@ static int load_authorities(vici_conn_t *conn)
 {
 	command_format_options_t format = COMMAND_FORMAT_NONE;
 	settings_t *cfg;
-	char *arg;
+	char *arg, *file = SWANCTL_CONF;
 	int ret;
 
 	while (TRUE)
@@ -325,6 +325,9 @@ static int load_authorities(vici_conn_t *conn)
 			case 'r':
 				format |= COMMAND_FORMAT_RAW;
 				continue;
+			case 'f':
+				file = arg;
+				continue;
 			case EOF:
 				break;
 			default:
@@ -333,10 +336,10 @@ static int load_authorities(vici_conn_t *conn)
 		break;
 	}
 
-	cfg = settings_create(SWANCTL_CONF);
+	cfg = settings_create(file);
 	if (!cfg)
 	{
-		fprintf(stderr, "parsing '%s' failed\n", SWANCTL_CONF);
+		fprintf(stderr, "parsing '%s' failed\n", file);
 		return EINVAL;
 	}
 
@@ -360,6 +363,7 @@ static void __attribute__ ((constructor))reg()
 			{"help",		'h', 0, "show usage information"},
 			{"raw",			'r', 0, "dump raw response message"},
 			{"pretty",		'P', 0, "dump raw response message in pretty print"},
+			{"file",		'f', 1, "custom path to swanctl.conf"},
 		}
 	});
 }

src/swanctl/commands/load_conns.c

@@ -425,7 +425,7 @@ static int load_conns(vici_conn_t *conn)
 {
 	command_format_options_t format = COMMAND_FORMAT_NONE;
 	settings_t *cfg;
-	char *arg;
+	char *arg, *file = SWANCTL_CONF;
 	int ret;
 
 	while (TRUE)
@@ -440,6 +440,9 @@ static int load_conns(vici_conn_t *conn)
 			case 'r':
 				format |= COMMAND_FORMAT_RAW;
 				continue;
+			case 'f':
+				file = arg;
+				continue;
 			case EOF:
 				break;
 			default:
@@ -448,10 +451,10 @@ static int load_conns(vici_conn_t *conn)
 		break;
 	}
 
-	cfg = settings_create(SWANCTL_CONF);
+	cfg = settings_create(file);
 	if (!cfg)
 	{
-		fprintf(stderr, "parsing '%s' failed\n", SWANCTL_CONF);
+		fprintf(stderr, "parsing '%s' failed\n", file);
 		return EINVAL;
 	}
 
@@ -474,6 +477,7 @@ static void __attribute__ ((constructor))reg()
 			{"help",		'h', 0, "show usage information"},
 			{"raw",			'r', 0, "dump raw response message"},
 			{"pretty",		'P', 0, "dump raw response message in pretty print"},
+			{"file",		'f', 1, "custom path to swanctl.conf"},
 		}
 	});
 }

src/swanctl/commands/load_creds.c

@@ -946,7 +946,7 @@ static int load_creds(vici_conn_t *conn)
 	bool clear = FALSE, noprompt = FALSE;
 	command_format_options_t format = COMMAND_FORMAT_NONE;
 	settings_t *cfg;
-	char *arg;
+	char *arg, *file = SWANCTL_CONF;
 	int ret;
 
 	while (TRUE)
@@ -967,6 +967,9 @@ static int load_creds(vici_conn_t *conn)
 			case 'r':
 				format |= COMMAND_FORMAT_RAW;
 				continue;
+			case 'f':
+				file = arg;
+				continue;
 			case EOF:
 				break;
 			default:
@@ -975,10 +978,10 @@ static int load_creds(vici_conn_t *conn)
 		break;
 	}
 
-	cfg = settings_create(SWANCTL_CONF);
+	cfg = settings_create(file);
 	if (!cfg)
 	{
-		fprintf(stderr, "parsing '%s' failed\n", SWANCTL_CONF);
+		fprintf(stderr, "parsing '%s' failed\n", file);
 		return EINVAL;
 	}
 
@@ -1003,6 +1006,7 @@ static void __attribute__ ((constructor))reg()
 			{"noprompt",	'n', 0, "do not prompt for passwords"},
 			{"raw",			'r', 0, "dump raw response message"},
 			{"pretty",		'P', 0, "dump raw response message in pretty print"},
+			{"file",		'f', 1, "custom path to swanctl.conf"},
 		}
 	});
 }

src/swanctl/commands/load_pools.c

@@ -251,7 +251,7 @@ static int load_pools(vici_conn_t *conn)
 {
 	command_format_options_t format = COMMAND_FORMAT_NONE;
 	settings_t *cfg;
-	char *arg;
+	char *arg, *file = SWANCTL_CONF;
 	int ret;
 
 	while (TRUE)
@@ -266,6 +266,9 @@ static int load_pools(vici_conn_t *conn)
 			case 'r':
 				format |= COMMAND_FORMAT_RAW;
 				continue;
+			case 'f':
+				file = arg;
+				continue;
 			case EOF:
 				break;
 			default:
@@ -274,10 +277,10 @@ static int load_pools(vici_conn_t *conn)
 		break;
 	}
 
-	cfg = settings_create(SWANCTL_CONF);
+	cfg = settings_create(file);
 	if (!cfg)
 	{
-		fprintf(stderr, "parsing '%s' failed\n", SWANCTL_CONF);
+		fprintf(stderr, "parsing '%s' failed\n", file);
 		return EINVAL;
 	}
 
@@ -300,6 +303,7 @@ static void __attribute__ ((constructor))reg()
 			{"help",		'h', 0, "show usage information"},
 			{"raw",			'r', 0, "dump raw response message"},
 			{"pretty",		'P', 0, "dump raw response message in pretty print"},
+			{"file",		'f', 1, "custom path to swanctl.conf"},
 		}
 	});
 }