ref: 94e26e7576fabcaacd8fa8f75c4f87f9eb6e56f3
dir: /sys/src/ape/lib/bsd/inet_addr.c/
/* posix */ #include <sys/types.h> #include <unistd.h> #include <stdlib.h> #include <string.h> /* bsd extensions */ #include <sys/uio.h> #include <sys/socket.h> #include <netinet/in.h> unsigned long inet_addr(char *from) { struct in_addr in; if(inet_aton(from, &in) == 0) return INADDR_NONE; return in.s_addr; }