mirror of
https://github.com/pygos/init.git
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82 lines
1.6 KiB
C
82 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* Copyright (C) 2018 - David Oberhollenzer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#include <stdio.h>
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#include "libcfg.h"
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int pack_argv(char *str)
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{
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char *dst, *start;
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int count = 0;
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dst = str;
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for (;;) {
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while (*str == ' ')
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++str;
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if (*str == '\0')
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break;
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if (*str == '"') {
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start = dst;
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*(dst++) = *(str++);
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while (*str != '"') {
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if (*str == '\0')
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goto fail_str;
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if (str[0] == '\\' && str[1] != '\0')
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*(dst++) = *(str++);
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*(dst++) = *(str++);
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}
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*(dst++) = *(str++);
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if (*str != ' ' && *str != '\0')
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goto fail_str;
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if (*str == ' ')
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++str;
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*(dst++) = '\0';
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if (unescape(start))
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goto fail_str;
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dst = start + strlen(start) + 1;
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} else {
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while (*str != '\0' && *str != ' ')
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*(dst++) = *(str++);
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if (*str == ' ') {
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++str;
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*(dst++) = '\0';
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}
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}
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++count;
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}
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*dst = '\0';
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return count;
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fail_str:
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errno = EINVAL;
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return -1;
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}
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