/* 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; }