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/* utils.c -- Utility functions.
Copyright © 2017 Mathieu Lirzin <mthl@gnu.org>
This file is part of GNU Mcron.
GNU Mcron 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.
GNU Mcron 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 GNU Mcron. If not, see <http://www.gnu.org/licenses/>. */
#include "utils.h"
#include <stdbool.h>
void
wrap_env_path (const char *envar, const char *dir)
{
const char *path = getenv (envar);
if (path == NULL)
setenv (envar, dir, true);
else
{
char *new_path;
int ret = asprintf (&new_path, "%s:%s", dir, path);
if (ret >= 0)
setenv (envar, new_path, true);
else
{
perror (envar);
exit (EXIT_FAILURE);
}
free (new_path);
}
}
void
assq_symbol_set_x (SCM *alst, const char *symbol, SCM val)
{
*alst = scm_assq_set_x (*alst, scm_from_utf8_symbol (symbol), val);
}
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