1 #include "str.h" 2 #include "gfrom.h" 3 gfrom(s,len)4 int gfrom(s,len) 5 char *s; 6 int len; 7 { 8 while ((len > 0) && (*s == '>')) { ++s; --len; } 9 return (len >= 5) && !str_diffn(s,"From ",5); 10 } 11