6 extern char **environ;
16   for (ev = environ; *ev; ev++) bytes += sizeof(char *) + strlen(*ev) + 1;  in environ_bytes()
28     for (i = 0; environ[i]; i++) if (i>=toys.envc) free(environ[i]);  in xclearenv()
29   } else environ = xmalloc(256*sizeof(char *));  in xclearenv()
31   *environ = 0;  in xclearenv()
47     while (environ[toys.envc++]);  in xsetenv()
48     memcpy(new = xmalloc(((toys.envc|31)+1)*sizeof(char *)), environ,  in xsetenv()
50     environ = (void *)new;  in xsetenv()
62   for (i = 0; environ[i]; i++) {  in xsetenv()
64     if (!smemcmp(name, environ[i], len) && environ[i][len]=='=') {  in xsetenv()
66       else free(environ[i]);  in xsetenv()
71     if (j && !(environ[i] = environ[i+1])) break;  in xsetenv()
77   if (!j && !environ[i]) {  in xsetenv()
79     if (!(len&31)) environ = xrealloc(environ, (len+32)*sizeof(char *));  in xsetenv()
80     environ[len] = 0;  in xsetenv()
83   return environ[i] = new;  in xsetenv()
99   for (i = 0; environ[i]; i++) {  in xpop_env()
100     if (!s && !strncmp(name, environ[i], len) && environ[i][len] == '=') {  in xpop_env()
101       s = environ[i];  in xpop_env()
107     if (s) environ[i] = environ[i+1];  in xpop_env()
133     for (ev1 = ev2 = environ;;) {  in reset_env()