xemu/qemu-option.h
Kevin Wolf db08adf526 qemu-img: Print available options with -o ?
This patch adds a small help text to each of the options in the block drivers
which can be displayed by using qemu-img create -f fmt -o ?

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2009-06-06 18:38:57 +03:00

70 lines
2.4 KiB
C

/*
* Commandline option parsing functions
*
* Copyright (c) 2003-2008 Fabrice Bellard
* Copyright (c) 2009 Kevin Wolf <kwolf@redhat.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef QEMU_OPTIONS_H
#define QEMU_OPTIONS_H
enum QEMUOptionParType {
OPT_FLAG,
OPT_NUMBER,
OPT_SIZE,
OPT_STRING,
};
typedef struct QEMUOptionParameter {
const char *name;
enum QEMUOptionParType type;
union {
uint64_t n;
char* s;
} value;
const char *help;
} QEMUOptionParameter;
const char *get_opt_name(char *buf, int buf_size, const char *p, char delim);
const char *get_opt_value(char *buf, int buf_size, const char *p);
/*
* The following functions take a parameter list as input. This is a pointer to
* the first element of a QEMUOptionParameter array which is terminated by an
* entry with entry->name == NULL.
*/
QEMUOptionParameter *get_option_parameter(QEMUOptionParameter *list,
const char *name);
int set_option_parameter(QEMUOptionParameter *list, const char *name,
const char *value);
int set_option_parameter_int(QEMUOptionParameter *list, const char *name,
uint64_t value);
QEMUOptionParameter *parse_option_parameters(const char *param,
QEMUOptionParameter *list, QEMUOptionParameter *dest);
void free_option_parameters(QEMUOptionParameter *list);
void print_option_parameters(QEMUOptionParameter *list);
void print_option_help(QEMUOptionParameter *list);
#endif