#include <stdlib.h>
#include <string.h>
#include "libc.h"

char* getenv(const char* name) {
  int i;
  size_t l = strlen(name);
  if (!__environ || !*name || strchr(name, '='))
    return NULL;
  for (i = 0; __environ[i] &&
              (strncmp(name, __environ[i], l) || __environ[i][l] != '=');
       i++)
    ;
  if (__environ[i])
    return __environ[i] + l + 1;
  return NULL;
}