d3f243676a
This patch creates a new header file and the corresponding implementation file for parsing of parameter strings for options (like used in -drive). Part of this is code moved from vl.c (so qemu-img can use it later). The idea is to have a data structure describing all accepted parameters. When parsing a parameter string, the structure is copied and filled with the parameter values. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
68 lines
2.4 KiB
C
68 lines
2.4 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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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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} 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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/*
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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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#endif
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