127 lines
4.8 KiB
C
127 lines
4.8 KiB
C
/*
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* Commandline option parsing functions
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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* Copyright (c) 2009 Kevin Wolf <kwolf@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef QEMU_OPTIONS_H
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#define QEMU_OPTIONS_H
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#include <stdint.h>
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#include "qemu-queue.h"
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enum QEMUOptionParType {
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OPT_FLAG,
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OPT_NUMBER,
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OPT_SIZE,
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OPT_STRING,
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};
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typedef struct QEMUOptionParameter {
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const char *name;
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enum QEMUOptionParType type;
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union {
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uint64_t n;
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char* s;
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} value;
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const char *help;
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} QEMUOptionParameter;
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const char *get_opt_name(char *buf, int buf_size, const char *p, char delim);
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const char *get_opt_value(char *buf, int buf_size, const char *p);
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int get_next_param_value(char *buf, int buf_size,
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const char *tag, const char **pstr);
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int get_param_value(char *buf, int buf_size,
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const char *tag, const char *str);
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int check_params(char *buf, int buf_size,
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const char * const *params, const char *str);
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/*
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* The following functions take a parameter list as input. This is a pointer to
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* the first element of a QEMUOptionParameter array which is terminated by an
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* entry with entry->name == NULL.
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*/
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QEMUOptionParameter *get_option_parameter(QEMUOptionParameter *list,
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const char *name);
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int set_option_parameter(QEMUOptionParameter *list, const char *name,
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const char *value);
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int set_option_parameter_int(QEMUOptionParameter *list, const char *name,
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uint64_t value);
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QEMUOptionParameter *parse_option_parameters(const char *param,
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QEMUOptionParameter *list, QEMUOptionParameter *dest);
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void free_option_parameters(QEMUOptionParameter *list);
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void print_option_parameters(QEMUOptionParameter *list);
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void print_option_help(QEMUOptionParameter *list);
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/* ------------------------------------------------------------------ */
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typedef struct QemuOpt QemuOpt;
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typedef struct QemuOpts QemuOpts;
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typedef struct QemuOptsList QemuOptsList;
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enum QemuOptType {
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QEMU_OPT_STRING = 0, /* no parsing (use string as-is) */
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QEMU_OPT_BOOL, /* on/off */
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QEMU_OPT_NUMBER, /* simple number */
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QEMU_OPT_SIZE, /* size, accepts (K)ilo, (M)ega, (G)iga, (T)era postfix */
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};
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typedef struct QemuOptDesc {
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const char *name;
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enum QemuOptType type;
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const char *help;
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} QemuOptDesc;
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struct QemuOptsList {
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const char *name;
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QTAILQ_HEAD(, QemuOpts) head;
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QemuOptDesc desc[];
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};
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const char *qemu_opt_get(QemuOpts *opts, const char *name);
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int qemu_opt_get_bool(QemuOpts *opts, const char *name, int defval);
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uint64_t qemu_opt_get_number(QemuOpts *opts, const char *name, uint64_t defval);
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uint64_t qemu_opt_get_size(QemuOpts *opts, const char *name, uint64_t defval);
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int qemu_opt_set(QemuOpts *opts, const char *name, const char *value);
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typedef int (*qemu_opt_loopfunc)(const char *name, const char *value, void *opaque);
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int qemu_opt_foreach(QemuOpts *opts, qemu_opt_loopfunc func, void *opaque,
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int abort_on_failure);
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QemuOpts *qemu_opts_find(QemuOptsList *list, const char *id);
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QemuOpts *qemu_opts_create(QemuOptsList *list, const char *id, int fail_if_exists);
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int qemu_opts_set(QemuOptsList *list, const char *id,
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const char *name, const char *value);
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const char *qemu_opts_id(QemuOpts *opts);
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void qemu_opts_del(QemuOpts *opts);
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int qemu_opts_do_parse(QemuOpts *opts, const char *params, const char *firstname);
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QemuOpts *qemu_opts_parse(QemuOptsList *list, const char *params, const char *firstname);
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typedef int (*qemu_opts_loopfunc)(QemuOpts *opts, void *opaque);
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int qemu_opts_print(QemuOpts *opts, void *dummy);
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int qemu_opts_foreach(QemuOptsList *list, qemu_opts_loopfunc func, void *opaque,
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int abort_on_failure);
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#endif
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