mirror of
https://git.proxmox.com/git/mirror_corosync-qdevice
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9a1955a7d6
Used the code from corosync master (31ddba64a2726bcedf81eb84df2e2da4846832f7) Signed-off-by: Jan Friesse <jfriesse@redhat.com>
130 lines
3.2 KiB
C
130 lines
3.2 KiB
C
/*
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* Copyright (c) 2015-2016 Red Hat, Inc.
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*
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* All rights reserved.
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*
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* Author: Jan Friesse (jfriesse@redhat.com)
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*
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* This software licensed under BSD license, the text of which follows:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the Red Hat, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <string.h>
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#include "dynar-getopt-lex.h"
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void
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dynar_getopt_lex_init(struct dynar_getopt_lex *lex, struct dynar *input)
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{
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memset(lex, 0, sizeof(*lex));
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lex->input = input;
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dynar_init(&lex->option, dynar_max_size(input));
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dynar_init(&lex->value, dynar_max_size(input));
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}
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void
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dynar_getopt_lex_destroy(struct dynar_getopt_lex *lex)
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{
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dynar_destroy(&lex->option);
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dynar_destroy(&lex->value);
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memset(lex, 0, sizeof(*lex));
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}
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/*
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* 0 - no error
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* -1 - Can't add character
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*/
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int
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dynar_getopt_lex_token_next(struct dynar_getopt_lex *lex)
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{
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size_t pos;
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size_t size;
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char *str;
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char ch;
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int state;
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dynar_clean(&lex->option);
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dynar_clean(&lex->value);
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size = dynar_size(lex->input);
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str = dynar_data(lex->input);
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state = 1;
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pos = lex->pos;
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while (state != 0 && pos < size) {
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ch = str[pos];
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switch (state) {
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case 1:
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/*
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* Read option name, wait for = or ,
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*/
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if (ch == '=') {
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pos++;
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state = 2;
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} else if (ch == ',') {
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pos++;
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state = 0;
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} else {
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pos++;
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if (dynar_cat(&lex->option, &ch, sizeof(ch)) != 0) {
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return (-1);
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}
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}
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break;
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case 2:
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/*
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* Wait for end of str or ,
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*/
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if (ch == ',') {
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pos++;
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state = 0;
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} else {
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pos++;
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if (dynar_cat(&lex->value, &ch, sizeof(ch)) != 0) {
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return (-1);
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}
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}
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break;
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}
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}
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ch = '\0';
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if (dynar_cat(&lex->option, &ch, sizeof(ch)) != 0) {
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return (-1);
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}
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if (dynar_cat(&lex->value, &ch, sizeof(ch)) != 0) {
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return (-1);
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}
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lex->pos = pos;
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return (0);
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}
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