btrfs-progs/help.h

80 lines
3.1 KiB
C

/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
#ifndef __BTRFS_HELP_H__
#define __BTRFS_HELP_H__
#define GETOPT_VAL_SI 256
#define GETOPT_VAL_IEC 257
#define GETOPT_VAL_RAW 258
#define GETOPT_VAL_HUMAN_READABLE 259
#define GETOPT_VAL_KBYTES 260
#define GETOPT_VAL_MBYTES 261
#define GETOPT_VAL_GBYTES 262
#define GETOPT_VAL_TBYTES 263
#define GETOPT_VAL_HELP 270
#define ARGV0_BUF_SIZE PATH_MAX
#define HELPINFO_UNITS_LONG \
"--raw raw numbers in bytes", \
"--human-readable human friendly numbers, base 1024 (default)", \
"--iec use 1024 as a base (KiB, MiB, GiB, TiB)", \
"--si use 1000 as a base (kB, MB, GB, TB)", \
"--kbytes show sizes in KiB, or kB with --si", \
"--mbytes show sizes in MiB, or MB with --si", \
"--gbytes show sizes in GiB, or GB with --si", \
"--tbytes show sizes in TiB, or TB with --si"
#define HELPINFO_UNITS_SHORT_LONG \
"-b|--raw raw numbers in bytes", \
"-h|--human-readable", \
" human friendly numbers, base 1024 (default)", \
"-H human friendly numbers, base 1000", \
"--iec use 1024 as a base (KiB, MiB, GiB, TiB)", \
"--si use 1000 as a base (kB, MB, GB, TB)", \
"-k|--kbytes show sizes in KiB, or kB with --si", \
"-m|--mbytes show sizes in MiB, or MB with --si", \
"-g|--gbytes show sizes in GiB, or GB with --si", \
"-t|--tbytes show sizes in TiB, or TB with --si"
struct cmd_struct;
struct cmd_group;
void usage(const char * const *usagestr) __attribute__((noreturn));
void usage_command(const struct cmd_struct *cmd, int full, int err);
void usage_command_group(const struct cmd_group *grp, int all, int err);
void usage_command_group_short(const struct cmd_group *grp);
void help_unknown_token(const char *arg, const struct cmd_group *grp) __attribute__((noreturn));
void help_ambiguous_token(const char *arg, const struct cmd_group *grp) __attribute__((noreturn));
void help_command_group(const struct cmd_group *grp, int argc, char **argv);
int check_argc_exact(int nargs, int expected);
int check_argc_min(int nargs, int expected);
int check_argc_max(int nargs, int expected);
void clean_args_no_options(int argc, char *argv[], const char * const *usage);
void clean_args_no_options_relaxed(int argc, char *argv[],
const char * const *usagestr);
void fixup_argv0(char **argv, const char *token);
void set_argv0(char **argv);
const char *get_argv0_buf(void);
#endif