1#include <stdlib.h>
 2#include <string.h>
 3#include <unistd.h>
 4
 5char *getenv(const char *name)
 6{
 7	size_t l = __strchrnul(name, '=') - name;
 8	if (l && !name[l] && __environ)
 9		for (char **e = __environ; *e; e++)
10			if (!strncmp(name, *e, l) && l[*e] == '=')
11				return *e + l+1;
12	return 0;
13}