source: trunk/minix/lib/ansi/getenv.c@ 12

/*
 * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
 * See the copyright notice in the ACK home directory, in the file "Copyright".
 */
/* $Header: /cvsup/minix/src/lib/ansi/getenv.c,v 1.1.1.1 2005/04/21 14:56:05 beng Exp $ */

#include        <stdlib.h>

extern const char ***_penviron;

char *
getenv(const char *name)
{
        register const char **v = *_penviron;
        register const char *p, *q;

        if (v == NULL || name == NULL)
                return (char *)NULL;
        while ((p = *v++) != NULL) {
                q = name;
                while (*q && (*q == *p++))
                        q++;
                if (*q || (*p != '='))
                        continue;
                return (char *)p + 1;
        }
        return (char *)NULL;
}