Initial s390-tools-2.0.0 import

This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
2026-08-05 02:14:52 +00:00 · 2017-08-07 16:13:17 +02:00
commit b627b8d8e1
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+/*
+ * cpuplugd - Linux for System z Hotplug Daemon
+ *
+ * Command line parsing
+ *
+ * Copyright IBM Corp. 2007, 2017
+ *
+ * s390-tools is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#include <getopt.h>
+#include "cpuplugd.h"
+
+void print_usage(int is_error, char program_name[]);
+void print_version();
+int foreground;
+int debug;
+char *configfile;
+int cpu_idle_limit;
+
+void parse_options(int argc, char **argv)
+{
+	int config_file_specified = -1;
+	const struct option long_options[] = {
+		{ "help", no_argument,       NULL, 'h'},
+		{ "foreground", no_argument, NULL, 'f' },
+		{ "config", required_argument, NULL, 'c' },
+		{ "version", no_argument, NULL, 'v' },
+		{ "verbose", no_argument, NULL, 'V'   },
+		{ NULL, 0, NULL, 0}
+	};
+
+	/* dont run without any argument */
+	if (argc == 0 || argc == 1)
+		print_usage(0, argv[0]);
+	while (optind < argc) {
+		int index = -1;
+		struct option *opt = 0;
+		int result = getopt_long(argc, argv, "hfc:vVm",
+			long_options, &index);
+		if (result == -1)
+			break;		/* end of list */
+		switch (result) {
+		case 'h':
+			print_usage(0, argv[0]);
+			break;
+		case 'f':
+			foreground = 1;
+			break;
+		case 'c':
+			/*
+			 * This prevents -cbla and enforces the
+			 * user to specify -c bla
+			 */
+			if (strcmp(argv[optind-1], optarg) == 0) {
+				configfile = optarg;
+				config_file_specified = 1;
+			} else {
+				cpuplugd_error("Unrecognized option: %s\n",
+					       optarg);
+				exit(1);
+			}
+			break;
+		case 'v':
+			print_version();
+			break;
+		case 'V':
+			debug = 1;
+			break;
+		case 0:
+			/* all parameter that do not appear in the optstring */
+			opt = (struct option *)&(long_options[index]);
+			printf("'%s' was specified.",
+			       opt->name);
+			if (opt->has_arg == required_argument)
+				printf("Arg: <%s>", optarg);
+			printf("\n");
+			break;
+		case '?':
+			printf("Try '%s' --help' for more information.\n",
+				argv[0]);
+			exit(1);
+			break;
+		case -1:
+			/*
+			 * We also run in this case if no argument was
+			 * specified
+			 */
+			break;
+		default:
+			print_usage(0, argv[0]);
+		}
+	}
+	if (config_file_specified == -1) {
+		printf("You have to specify a configuration file!\n");
+		printf("Try '%s' --help' for more information.\n", argv[0]);
+		exit(1);
+	}
+}