src/lxc/arguments.h

   1 /*
   2  * lxc: linux Container library
   3  *
   4  * (C) Copyright IBM Corp. 2007, 2008
   5  *
   6  * Authors:
   7  * Daniel Lezcano <dlezcano at fr.ibm.com>
   8  * Michel Normand <normand at fr.ibm.com>
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  23  */
  24 #ifndef __arguments_h
  25 #define __arguments_h
  26
  27 #include <getopt.h>
  28
  29 struct lxc_arguments;
  30
  31 typedef int (*lxc_arguments_parser_t) (struct lxc_arguments *, int, char*);
  32 typedef int (*lxc_arguments_checker_t) (const struct lxc_arguments *);
  33
  34 struct lxc_arguments {
  35         const char *help;
  36         const char *progname;
  37         const struct option* options;
  38         lxc_arguments_parser_t parser;
  39         lxc_arguments_checker_t checker;
  40
  41         const char *name;
  42         char *log_file;
  43         char *log_priority;
  44         int quiet;
  45         int daemonize;
  46         const char *rcfile;
  47         const char *console;
  48
  49         /* for lxc-checkpoint/restart */
  50         const char *statefile;
  51         int statefd;
  52         int flags;
  53
  54         /* for lxc-console */
  55         int ttynum;
  56         char escape;
  57
  58         /* for lxc-wait */
  59         char *states;
  60
  61         /* remaining arguments */
  62         char *const *argv;
  63         int argc;
  64
  65         /* private arguments */
  66         void *data;
  67 };
  68
  69 #define LXC_COMMON_OPTIONS \
  70         {"name", required_argument, 0, 'n'}, \
  71         {"help", no_argument, 0, 'h'}, \
  72         {"usage", no_argument,  0, OPT_USAGE}, \
  73         {"quiet", no_argument,  0, 'q'}, \
  74         {"logfile", required_argument, 0, 'o'}, \
  75         {"logpriority", required_argument, 0, 'l'}, \
  76         {0, 0, 0, 0}
  77
  78 /* option keys for long only options */
  79 #define OPT_USAGE 0x1000
  80
  81 extern int lxc_arguments_parse(struct lxc_arguments *args,
  82                                int argc, char *const argv[]);
  83
  84 extern int lxc_arguments_str_to_int(struct lxc_arguments *args, const char *str);
  85
  86 extern const char *lxc_strerror(int errnum);
  87
  88 #define lxc_error(arg, fmt, args...) if (!(arg)->quiet)                 \
  89         fprintf(stderr, "%s: " fmt "\n", (arg)->progname,  ## args)
  90
  91 #endif