add long options step3

add the long options to remaining lxc_*.c  files
that do not impact the struct lxc_arguments

Signed-off-by: Michel Normand <normand@fr.ibm.com>
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>

src/lxc/lxc_cgroup.c

@@ -27,70 +27,68 @@
 #include <sys/types.h>
 
 #include <lxc/lxc.h>
+#include "arguments.h"
 
 lxc_log_define(lxc_cgroup, lxc);
 
-void usage(char *cmd)
+static int my_checker(const struct lxc_arguments* args)
 {
-	fprintf(stderr, "%s <subsystem> [value]\n", basename(cmd));
-	fprintf(stderr, "\t -n <name>   : name of the container\n");
-	fprintf(stderr, "\t[-o <logfile>]    : path of the log file\n");
-	fprintf(stderr, "\t[-l <logpriority>]: log level priority\n");
-	fprintf(stderr, "\t[-q ]             : be quiet\n");
-	_exit(1);
+	if (!args->argc) {
+		lxc_error(args, "missing cgroup subsystem");
+		return -1;
+	}
+	return 0;
 }
 
+static const struct option my_longopts[] = {
+	LXC_COMMON_OPTIONS
+};
+
+static struct lxc_arguments my_args = {
+	.progname = "lxc-cgroup",
+	.help     = "\
+--name=NAME subsystem [value]\n\
+\n\
+lxc-cgroup get or set subsystem value of cgroup\n\
+associated with the NAME container\n\
+\n\
+Options :\n\
+  -n, --name=NAME      NAME for name of the container",
+	.options  = my_longopts,
+	.parser   = NULL,
+	.checker  = my_checker,
+};
+
 int main(int argc, char *argv[])
 {
-	int opt;
-	char *name = NULL, *subsystem = NULL, *value = NULL;
-	const char *log_file = NULL, *log_priority = NULL;
-	int nbargs = 0;
-	int quiet = 0;
+	int ret;
+	char *subsystem = NULL, *value = NULL;
 
-	while ((opt = getopt(argc, argv, "n:o:l:")) != -1) {
-		switch (opt) {
-		case 'n':
-			name = optarg;
-			break;
-		case 'o':
-			log_file = optarg;
-			break;
-		case 'l':
-			log_priority = optarg;
-			break;
-		case 'q':
-			quiet = 1;
-			break;
-		}
-
-		nbargs++;
-	}
-
-	if (!name || (argc-optind) < 1)
-		usage(argv[0]);
-
-	if (lxc_log_init(log_file, log_priority, basename(argv[0]), quiet))
+	ret = lxc_arguments_parse(&my_args, argc, argv);
+	if (ret)
 		return 1;
 
-	if ((argc -optind) >= 1)
-		subsystem = argv[optind];
+	if (lxc_log_init(my_args.log_file, my_args.log_priority,
+			 my_args.progname, my_args.quiet))
+		return 1;
 
-	if ((argc -optind) >= 2)
-		value = argv[optind+1];
+	subsystem = my_args.argv[0];
+
+	if ((argc) > 1)
+		value = my_args.argv[1];
 
 	if (value) {
-		if (lxc_cgroup_set(name, subsystem, value)) {
-			ERROR("failed to assign '%s' value to '%s' for '%s'\n",
-				value, subsystem, name);
+		if (lxc_cgroup_set(my_args.name, subsystem, value)) {
+			ERROR("failed to assign '%s' value to '%s' for '%s'",
+				value, subsystem, my_args.name);
 			return 1;
 		}
 	} else {
 		const unsigned long len = 4096;
 		char buffer[len];
-		if (lxc_cgroup_get(name, subsystem, buffer, len)) {
-			ERROR("failed to retrieve value of '%s' for '%s'\n",
-				subsystem, name);
+		if (lxc_cgroup_get(my_args.name, subsystem, buffer, len)) {
+			ERROR("failed to retrieve value of '%s' for '%s'",
+				subsystem, my_args.name);
 			return 1;
 		}
 

src/lxc/lxc_create.c

@@ -33,60 +33,57 @@
 
 #include <lxc/lxc.h>
 #include "confile.h"
+#include "arguments.h"
 
-void usage(char *cmd)
+static int my_parser(struct lxc_arguments* args, int c, char* arg)
 {
-	fprintf(stderr, "%s <command>\n", basename(cmd));
-	fprintf(stderr, "\t -n <name>    : name of the container\n");
-	fprintf(stderr, "\t -f <confile> : path of the configuration file\n");
-	fprintf(stderr, "\t[-o <logfile>]    : path of the log file\n");
-	fprintf(stderr, "\t[-l <logpriority>]: log level priority\n");
-	fprintf(stderr, "\t[-q ]             : be quiet\n");
-	_exit(1);
+	switch (c) {
+	case 'f': args->rcfile = arg; break;
+	}
+	return 0;
 }
 
+static const struct option my_longopts[] = {
+	{"rcfile", required_argument, 0, 'f'},
+	LXC_COMMON_OPTIONS
+};
+
+static struct lxc_arguments my_args = {
+	.progname = "lxc-create",
+	.help     = "\
+--name=NAME\n\
+\n\
+lxc-create creates a container with the identifier NAME\n\
+\n\
+Options :\n\
+  -n, --name=NAME      NAME for name of the container\n\
+  -f, --rcfile=FILE    Load configuration file FILE\n",
+	.options  = my_longopts,
+	.parser   = my_parser,
+	.checker  = NULL,
+};
+
 int main(int argc, char *argv[])
 {
-	const char *name = NULL, *file = NULL;
-	const char *log_file = NULL, *log_priority = NULL;
 	struct lxc_conf lxc_conf;
-	int err, opt;
-	int quiet = 0;
+	int ret;
 
-	while ((opt = getopt(argc, argv, "f:n:o:l:q")) != -1) {
-		switch (opt) {
-		case 'n':
-			name = optarg;
-			break;
-		case 'f':
-			file = optarg;
-			break;
-		case 'o':
-			log_file = optarg;
-			break;
-		case 'l':
-			log_priority = optarg;
-			break;
-		case 'q':
-			quiet = 1;
-			break;
-		}
-	}
+	ret = lxc_arguments_parse(&my_args, argc, argv);
+	if (ret)
+		return 1;
 
-	if (!name)
-		usage(argv[0]);
-
-	if (lxc_log_init(log_file, log_priority, basename(argv[0]), quiet))
+	if (lxc_log_init(my_args.log_file, my_args.log_priority,
+			 my_args.progname, my_args.quiet))
 		return 1;
 
 	if (lxc_conf_init(&lxc_conf))
 		return 1;
 
-	if (file && lxc_config_read(file, &lxc_conf))
+	if (my_args.rcfile && lxc_config_read(my_args.rcfile, &lxc_conf))
 		return 1;
 
-	err = lxc_create(name, &lxc_conf);
-	if (err)
+	ret = lxc_create(my_args.name, &lxc_conf);
+	if (ret)
 		return 1;
 
 	return 0;

src/lxc/lxc_destroy.c

@@ -26,53 +26,40 @@
 #include <sys/types.h>
 
 #include <lxc/lxc.h>
+#include "arguments.h"
 
-void usage(char *cmd)
-{
-	fprintf(stderr, "%s <command>\n", basename(cmd));
-	fprintf(stderr, "\t -n <name>   : name of the container\n");
-	fprintf(stderr, "\t[-o <logfile>]    : path of the log file\n");
-	fprintf(stderr, "\t[-l <logpriority>]: log level priority\n");
-	fprintf(stderr, "\t[-q ]             : be quiet\n");
-	_exit(1);
-}
+static const struct option my_longopts[] = {
+	LXC_COMMON_OPTIONS
+};
+
+static struct lxc_arguments my_args = {
+	.progname = "lxc-destroy",
+	.help     = "\
+--name=NAME\n\
+\n\
+lxc-destroy destroy a container with the identifier NAME\n\
+\n\
+Options :\n\
+  -n, --name=NAME   NAME for name of the container\n",
+	.options  = my_longopts,
+	.parser   = NULL,
+	.checker  = NULL,
+};
 
 int main(int argc, char *argv[])
 {
-	char *name = NULL;
-	const char *log_file = NULL, *log_priority = NULL;
-	int opt;
-	int nbargs = 0;
-	int err;
-	int quiet = 0;
+	int ret;
 
-	while ((opt = getopt(argc, argv, "n:o:l:")) != -1) {
-		switch (opt) {
-		case 'n':
-			name = optarg;
-			break;
-		case 'o':
-			log_file = optarg;
-			break;
-		case 'l':
-			log_priority = optarg;
-			break;
-		case 'q':
-			quiet = 1;
-			break;
-		}
-
-		nbargs++;
-	}
-
-	if (!name)
-		usage(argv[0]);
-
-	if (lxc_log_init(log_file, log_priority, basename(argv[0]), quiet))
+	ret = lxc_arguments_parse(&my_args, argc, argv);
+	if (ret)
 		return 1;
 
-	err = lxc_destroy(name);
-	if (err)
+	if (lxc_log_init(my_args.log_file, my_args.log_priority,
+			 my_args.progname, my_args.quiet))
+		return 1;
+
+	ret = lxc_destroy(my_args.name);
+	if (ret)
 		return 1;
 
 	return 0;

src/lxc/lxc_freeze.c

@@ -27,51 +27,39 @@
 #include <string.h>
 
 #include <lxc/lxc.h>
+#include "arguments.h"
 
-void usage(char *cmd)
-{
-	fprintf(stderr, "%s <command>\n", basename(cmd));
-	fprintf(stderr, "\t -n <name>   : name of the container\n");
-	fprintf(stderr, "\t[-o <logfile>]    : path of the log file\n");
-	fprintf(stderr, "\t[-l <logpriority>]: log level priority\n");
-	fprintf(stderr, "\t[-q ]             : be quiet\n");
-	_exit(1);
-}
+static const struct option my_longopts[] = {
+	LXC_COMMON_OPTIONS
+};
+
+static struct lxc_arguments my_args = {
+	.progname = "lxc-freeze",
+	.help     = "\
+--name=NAME\n\
+\n\
+lxc-freeze freezes a container with the identifier NAME\n\
+\n\
+Options :\n\
+  -n, --name=NAME      NAME for name of the container",
+	.options  = my_longopts,
+	.parser   = NULL,
+	.checker  = NULL,
+};
 
 int main(int argc, char *argv[])
 {
-	char *name = NULL;
-	const char *log_file = NULL, *log_priority = NULL;
-	int opt;
-	int nbargs = 0;
-	int quiet = 0;
+	int ret;
 
-	while ((opt = getopt(argc, argv, "n:o:l:")) != -1) {
-		switch (opt) {
-		case 'n':
-			name = optarg;
-			break;
-		case 'o':
-			log_file = optarg;
-			break;
-		case 'l':
-			log_priority = optarg;
-			break;
-		case 'q':
-			quiet = 1;
-			break;
-		}
-
-		nbargs++;
-	}
-
-	if (!name)
-		usage(argv[0]);
-
-	if (lxc_log_init(log_file, log_priority, basename(argv[0]), quiet))
+	ret = lxc_arguments_parse(&my_args, argc, argv);
+	if (ret)
 		return 1;
 
-	if (lxc_freeze(name))
+	if (lxc_log_init(my_args.log_file, my_args.log_priority,
+			 my_args.progname, my_args.quiet))
+		return 1;
+
+	if (lxc_freeze(my_args.name))
 		return 1;
 
 	return 0;

src/lxc/lxc_info.c

@@ -26,55 +26,43 @@
 #include <sys/types.h>
 
 #include <lxc/lxc.h>
+#include "arguments.h"
 
-void usage(char *cmd)
-{
-	fprintf(stderr, "%s <command>\n", basename(cmd));
-	fprintf(stderr, "\t -n <name>   : name of the container\n");
-	fprintf(stderr, "\t[-o <logfile>]    : path of the log file\n");
-	fprintf(stderr, "\t[-l <logpriority>]: log level priority\n");
-	fprintf(stderr, "\t[-q ]             : be quiet\n");
-	_exit(1);
-}
+static const struct option my_longopts[] = {
+	LXC_COMMON_OPTIONS
+};
+
+static struct lxc_arguments my_args = {
+	.progname = "lxc-info",
+	.help     = "\
+--name=NAME\n\
+\n\
+lxc-info display the state of a container with the identifier NAME\n\
+\n\
+Options :\n\
+  -n, --name=NAME   NAME for name of the container\n",
+	.options  = my_longopts,
+	.parser   = NULL,
+	.checker  = NULL,
+};
 
 int main(int argc, char *argv[])
 {
-	char *name = NULL;
-	const char *log_file = NULL, *log_priority = NULL;
-	int opt, state, nbargs = 0;
-	int quiet = 0;
+	int ret, state;
 
-	while ((opt = getopt(argc, argv, "n:o:l:")) != -1) {
-		switch (opt) {
-		case 'n':
-			name = optarg;
-			break;
-		case 'o':
-			log_file = optarg;
-			break;
-		case 'l':
-			log_priority = optarg;
-			break;
-		case 'q':
-			quiet = 1;
-			break;
-		}
-
-		nbargs++;
-	}
-
-	if (!name)
-		usage(argv[0]);
-
-	if (lxc_log_init(log_file, log_priority, basename(argv[0]), quiet))
+	ret = lxc_arguments_parse(&my_args, argc, argv);
+	if (ret)
 		return 1;
 
-	state = lxc_getstate(name);
+	if (lxc_log_init(my_args.log_file, my_args.log_priority,
+			 my_args.progname, my_args.quiet))
+		return 1;
+
+	state = lxc_getstate(my_args.name);
 	if (state < 0)
 		return 1;
 
-	printf("'%s' is %s\n", name, lxc_state2str(state));
+	printf("'%s' is %s\n", my_args.name, lxc_state2str(state));
 
 	return 0;
 }
-

src/lxc/lxc_monitor.c

@@ -28,57 +28,49 @@
 #include <sys/types.h>
 
 #include <lxc/lxc.h>
+#include "arguments.h"
 
 lxc_log_define(monitor, lxc);
 
-void usage(char *cmd)
-{
-	fprintf(stderr, "%s <command>\n", basename(cmd));
-	fprintf(stderr, "\t -n <name>   : name of the container or regular expression\n");
-	fprintf(stderr, "\t[-o <logfile>]    : path of the log file\n");
-	fprintf(stderr, "\t[-l <logpriority>]: log level priority\n");
-	fprintf(stderr, "\t[-q ]             : be quiet\n");
-	_exit(1);
-}
+static const struct option my_longopts[] = {
+	LXC_COMMON_OPTIONS
+};
+
+static struct lxc_arguments my_args = {
+	.progname = "lxc-monitor",
+	.help     = "\
+--name=NAME\n\
+\n\
+lxc-monitor monitors the state of the NAME container\n\
+\n\
+Options :\n\
+  -n, --name=NAME   NAME for name of the container\n\
+                    NAME may be a regular expression",
+	.options  = my_longopts,
+	.parser   = NULL,
+	.checker  = NULL,
+};
 
 int main(int argc, char *argv[])
 {
-	char *name = NULL;
-	const char *log_file = NULL, *log_priority = NULL;
 	char *regexp;
 	struct lxc_msg msg;
 	regex_t preg;
-	int fd, opt;
-	int quiet = 0;
+	int fd, ret;
 
-	while ((opt = getopt(argc, argv, "n:o:l:q")) != -1) {
-		switch (opt) {
-		case 'n':
-			name = optarg;
-			break;
-		case 'o':
-			log_file = optarg;
-			break;
-		case 'l':
-			log_priority = optarg;
-			break;
-		case 'q':
-			quiet = 1;
-			break;
-		}
-	}
-
-	if (!name)
-		usage(argv[0]);
-
-	if (lxc_log_init(log_file, log_priority, basename(argv[0]), quiet))
+	ret = lxc_arguments_parse(&my_args, argc, argv);
+	if (ret)
 		return 1;
 
-	regexp = malloc(strlen(name) + 3);
-	sprintf(regexp, "^%s$", name);
+	if (lxc_log_init(my_args.log_file, my_args.log_priority,
+			 my_args.progname, my_args.quiet))
+		return 1;
+
+	regexp = malloc(strlen(my_args.name) + 3);
+	sprintf(regexp, "^%s$", my_args.name);
 
 	if (regcomp(&preg, regexp, REG_NOSUB|REG_EXTENDED)) {
-		ERROR("failed to compile the regex '%s'", name);
+		ERROR("failed to compile the regex '%s'", my_args.name);
 		return 1;
 	}
 

src/lxc/lxc_restart.c

@@ -26,58 +26,50 @@
 #include <sys/types.h>
 
 #include <lxc.h>
+#include "arguments.h"
 
-lxc_log_define(lxc_restart, lxc);
-
-void usage(char *cmd)
+static int my_checker(const struct lxc_arguments* args)
 {
-	fprintf(stderr, "%s <statefile>\n", basename(cmd));
-	fprintf(stderr, "\t -n <name>   : name of the container\n");
-	fprintf(stderr, "\t[-o <logfile>]    : path of the log file\n");
-	fprintf(stderr, "\t[-l <logpriority>]: log level priority\n");
-	fprintf(stderr, "\t[-q ]             : be quiet\n");
-	_exit(1);
-}
-
-int main(int argc, char *argv[])
-{
-	char *name = NULL;
-	const char *log_file = NULL, *log_priority = NULL;
-	int opt, nbargs = 0;
-	int quiet = 0;
-
-	while ((opt = getopt(argc, argv, "n:o:l:")) != -1) {
-		switch (opt) {
-		case 'n':
-			name = optarg;
-			break;
-		case 'o':
-			log_file = optarg;
-			break;
-		case 'l':
-			log_priority = optarg;
-			break;
-		case 'q':
-			quiet = 1;
-			break;
-		}
-
-		nbargs++;
-	}
-
-	if (!name)
-		usage(argv[0]);
-
-	if (!argv[optind])
-		usage(argv[0]);
-
-	if (lxc_log_init(log_file, log_priority, basename(argv[0]), quiet))
-		return 1;
-
-	if (lxc_restart(name, argv[1], 0)) {
-		ERROR("failed to restart %s", name);
-		return 1;
+	if (!args->argc) {
+		lxc_error(args, "missing STATEFILE filename !");
+		return -1;
 	}
 
 	return 0;
 }
+
+static const struct option my_longopts[] = {
+	LXC_COMMON_OPTIONS
+};
+
+static struct lxc_arguments my_args = {
+	.progname = "lxc-restart",
+	.help     = "\
+--name=NAME STATEFILE\n\
+\n\
+lxc-restart restarts from STATEFILE file the NAME container\n\
+\n\
+Options :\n\
+  -n, --name=NAME      NAME for name of the container\n",
+	.options  = my_longopts,
+	.parser   = NULL,
+	.checker  = my_checker,
+};
+
+int main(int argc, char *argv[])
+{
+	int ret;
+
+	ret = lxc_arguments_parse(&my_args, argc, argv);
+	if (ret)
+		return 1;
+
+	if (lxc_log_init(my_args.log_file, my_args.log_priority,
+			 my_args.progname, my_args.quiet))
+		return 1;
+
+	if (lxc_restart(my_args.name, my_args.argv[0], 0))
+		return 1;
+
+	return 0;
+}

src/lxc/lxc_stop.c

@@ -26,51 +26,40 @@
 #include <sys/types.h>
 
 #include <lxc/lxc.h>
+#include "arguments.h"
 
-void usage(char *cmd)
-{
-	fprintf(stderr, "%s <command>\n", basename(cmd));
-	fprintf(stderr, "\t -n <name>   : name of the container\n");
-	fprintf(stderr, "\t[-o <logfile>]    : path of the log file\n");
-	fprintf(stderr, "\t[-l <logpriority>]: log level priority\n");
-	fprintf(stderr, "\t[-q ]             : be quiet\n");
-	_exit(1);
-}
+static const struct option my_longopts[] = {
+	LXC_COMMON_OPTIONS
+};
+
+static struct lxc_arguments my_args = {
+	.progname = "lxc-stop",
+	.help     = "\
+--name=NAME\n\
+\n\
+lxc-stop stops a container with the identifier NAME\n\
+\n\
+Options :\n\
+  -n, --name=NAME   NAME for name of the container\n",
+	.options  = my_longopts,
+	.parser   = NULL,
+	.checker  = NULL,
+};
 
 int main(int argc, char *argv[])
 {
-	char *name = NULL;
-	const char *log_file = NULL, *log_priority = NULL;
-	int opt, err, nbargs = 0;
-	int quiet = 0;
+	int ret;
 
-	while ((opt = getopt(argc, argv, "n:o:l:q")) != -1) {
-		switch (opt) {
-		case 'n':
-			name = optarg;
-			break;
-		case 'o':
-			log_file = optarg;
-			break;
-		case 'l':
-			log_priority = optarg;
-			break;
-		case 'q':
-			quiet = 1;
-			break;
-		}
-
-		nbargs++;
-	}
-
-	if (!name)
-		usage(argv[0]);
-
-	if (lxc_log_init(log_file, log_priority, basename(argv[0]), quiet))
+	ret = lxc_arguments_parse(&my_args, argc, argv);
+	if (ret)
 		return 1;
 
-	err = lxc_stop(name);
-	if (err)
+	if (lxc_log_init(my_args.log_file, my_args.log_priority,
+			 my_args.progname, my_args.quiet))
+		return 1;
+
+	ret = lxc_stop(my_args.name);
+	if (ret)
 		return 1;
 
 	return 0;

src/lxc/lxc_unfreeze.c

@@ -26,50 +26,39 @@
 #include <sys/types.h>
 
 #include <lxc/lxc.h>
+#include "arguments.h"
 
-void usage(char *cmd)
-{
-	fprintf(stderr, "%s <command>\n", basename(cmd));
-	fprintf(stderr, "\t -n <name>   : name of the container\n");
-	fprintf(stderr, "\t[-o <logfile>]    : path of the log file\n");
-	fprintf(stderr, "\t[-l <logpriority>]: log level priority\n");
-	fprintf(stderr, "\t[-q ]             : be quiet\n");
-	_exit(1);
-}
+static const struct option my_longopts[] = {
+	LXC_COMMON_OPTIONS
+};
+
+static struct lxc_arguments my_args = {
+	.progname = "lxc-unfreeze",
+	.help     = "\
+--name=NAME\n\
+\n\
+lxc-unfreeze unfreezes a container with the identifier NAME\n\
+\n\
+Options :\n\
+  -n, --name=NAME   NAME for name of the container\n",
+	.options  = my_longopts,
+	.parser   = NULL,
+	.checker  = NULL,
+};
 
 int main(int argc, char *argv[])
 {
-	char *name = NULL;
-	const char *log_file = NULL, *log_priority = NULL;
-	int opt, nbargs = 0;
-	int quiet = 0;
+	int ret;
 
-	while ((opt = getopt(argc, argv, "n:o:l:")) != -1) {
-		switch (opt) {
-		case 'n':
-			name = optarg;
-			break;
-		case 'o':
-			log_file = optarg;
-			break;
-		case 'l':
-			log_priority = optarg;
-			break;
-		case 'q':
-			quiet = 1;
-			break;
-		}
-
-		nbargs++;
-	}
-
-	if (!name)
-		usage(argv[0]);
-
-	if (lxc_log_init(log_file, log_priority, basename(argv[0]), quiet))
+	ret = lxc_arguments_parse(&my_args, argc, argv);
+	if (ret)
 		return 1;
 
-	if (lxc_unfreeze(name))
+	if (lxc_log_init(my_args.log_file, my_args.log_priority,
+			 my_args.progname, my_args.quiet))
+		return 1;
+
+	if (lxc_unfreeze(my_args.name))
 		return 1;
 
 	return 0;