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/* getenv.c for uClibc

   Erik Andersen <andersen@codepoet.org>

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.

   */

#include <string.h>

#include <unistd.h>

/* IEEE Std 1003.1-2001 says getenv need not be thread safe, so

 * don't bother locking access to __environ */

char *getenv(const char *var)

{

    int len;

    char **ep;

    if (!(ep=__environ))

        return NULL;

    len = strlen(var);

    while(*ep) {

        if (memcmp(var, *ep, len) == 0 && (*ep)[len] == '=') {

            return *ep + len + 1;

        }

        ep++;

    }

    return NULL;

}