11  * Neither the name of the University nor the names of its
28  *	Set the value of the environmental variable "name" to be
40 setenv (const char *name,  in setenv()  argument
49   /* Name cannot be NULL, empty, or contain an equal sign.  */   in setenv()
50   if (name == NULL || name[0] == '\0' || strchr(name, '='))  in setenv()
59   if ((C = _findenv (name, &offset)))  in setenv()
104   for (C = (char *) name; *C && *C != '='; ++C);	/* no `=' in name */  in setenv()
105   char *E = malloc ((size_t) ((int) (C - name) + l_value + 2));  in setenv()
112   for (C = E; (*C = *name++) && *C != '='; ++C);  in setenv()
121  * unsetenv(name) --
122  *	Delete environmental variable "name".
125 unsetenv (const char *name)  in unsetenv()  argument
130   /* Name cannot be NULL, empty, or contain an equal sign.  */   in unsetenv()
131   if (name == NULL || name[0] == '\0' || strchr(name, '='))  in unsetenv()
139   while (_findenv (name, &offset))	/* if set multiple times */  in unsetenv()