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