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| | /* string-util.c - Extra or enhanced routines for null terminated strings.
*
* Copyright (c) 2012 Jani Nikula
*
* 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 http://www.gnu.org/licenses/ .
*
* Author: Jani Nikula <jani@nikula.org>
*/
#include "string-util.h"
#include "talloc.h"
char *
strtok_len (char *s, const char *delim, size_t *len)
{
/* skip initial delims */
s += strspn (s, delim);
/* length of token */
*len = strcspn (s, delim);
return *len ? s : NULL;
}
int
double_quote_str (void *ctx, const char *str,
char **buf, size_t *len)
{
const char *in;
char *out;
size_t needed = 3;
for (in = str; *in; in++)
needed += (*in == '"') ? 2 : 1;
if ((*buf == NULL) || (needed > *len)) {
*len = 2 * needed;
*buf = talloc_realloc (ctx, *buf, char, *len);
}
if (! *buf)
return 1;
out = *buf;
*out++ = '"';
in = str;
while (*in) {
if (*in == '"')
*out++ = '"';
*out++ = *in++;
}
*out++ = '"';
*out = '\0';
return 0;
}
|