src/lxc/arguments.h

	arguments.h revision 84fbfcb434f5a59680b7f017bbc1d0db0b81a39d
/*
 * lxc: linux Container library
 *
 * (C) Copyright IBM Corp. 2007, 2008
 *
 * Authors:
 * Daniel Lezcano <daniel.lezcano at free.fr>
 * Michel Normand <normand at fr.ibm.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
#ifndef __arguments_h
#define __arguments_h

#include <getopt.h>

struct lxc_arguments;

typedef int (*lxc_arguments_parser_t) (struct lxc_arguments *, int, char*);
typedef int (*lxc_arguments_checker_t) (const struct lxc_arguments *);

struct lxc_arguments {
    const char *help;
    void(*helpfn)(const struct lxc_arguments *);
    const char *progname;
    const struct option* options;
    lxc_arguments_parser_t parser;
    lxc_arguments_checker_t checker;

    const char *name;
    char *log_file;
    char *log_priority;
    int quiet;
    int daemonize;
    const char *rcfile;
    const char *console;
    const char *console_log;
    const char *pidfile;
    const char **lxcpath;
    int lxcpath_cnt;
    /* set to 0 to accept only 1 lxcpath, -1 for unlimited */
    int lxcpath_additional;

    /* for lxc-start */
    const char *share_ns[32]; // size must be greater than LXC_NS_MAX

    /* for lxc-checkpoint/restart */
    const char *statefile;
    int statefd;
    int flags;

    /* for lxc-console */
    int ttynum;
    char escape;

    /* for lxc-wait */
    char *states;
    long timeout;

    /* for lxc-autostart */
    int shutdown;

    /* for lxc-stop */
    int hardstop;
    int nokill;
    int nolock;
    int nowait;
    int reboot;

    /* for lxc-destroy */
    int force;

    /* close fds from parent? */
    int close_all_fds;

    /* lxc-create */
    char *bdevtype, *configfile, *template;
    char *fstype;
    unsigned long fssize;
    char *lvname, *vgname, *thinpool;
    char *zfsroot, *lowerdir, *dir;

    /* auto-start */
    int all;
    int list;
    char *groups;

    /* remaining arguments */
    char *const *argv;
    int argc;

    /* private arguments */
    void *data;
};

#define LXC_COMMON_OPTIONS \
    {"name", required_argument, 0, 'n'}, \
    {"help", no_argument, 0, 'h'}, \
    {"usage", no_argument,  0, OPT_USAGE}, \
    {"quiet", no_argument,  0, 'q'}, \
    {"logfile", required_argument, 0, 'o'}, \
    {"logpriority", required_argument, 0, 'l'}, \
    {"lxcpath", required_argument, 0, 'P'}, \
    {0, 0, 0, 0}

/* option keys for long only options */
#define OPT_USAGE 0x1000

extern int lxc_arguments_parse(struct lxc_arguments *args,
                   int argc, char *const argv[]);

extern int lxc_arguments_str_to_int(struct lxc_arguments *args, const char *str);

extern const char *lxc_strerror(int errnum);

#define lxc_error(arg, fmt, args...) if (!(arg)->quiet)         \
    fprintf(stderr, "%s: " fmt "\n", (arg)->progname,  ## args)

#endif