all those .c changes were mostly fixes of warnings for the change in rebuild.sh being changed to use -Wall.

gethostbyname was almost completely rewritten to work better with ipv6 for gopherd.sh
gopherd.sh was rewritten to use gethostbyname instead of dig and to cut out any link-local interface indicators from the output of hop0 and to ignore an error if ipA -> hostname -> ipB causes ipA to be not the same as ipB.
Don't remember if there's anything else.

1 files changed, 17 insertions, 15 deletions

diff --git a/src/bin/gethostbyname.c b/src/bin/gethostbyname.c
index b670b1e..a63f540 100644
--- a/src/bin/gethostbyname.c
+++ b/src/bin/gethostbyname.c
@@ -2,23 +2,25 @@
 #include <netdb.h>
 #include <arpa/inet.h>
 
+#define SILLYLIMIT 256
+
 int main(int argc,char *argv[]) {
- int i;
- if(argc < 2) return 1;
- char *addr;
+ char buf[SILLYLIMIT];
  struct in_addr saddr;
- if(inet_aton(argv[1],&saddr))
-  addr=inet_ntoa(saddr);
- else
-  addr=argv[1];
- struct hostent *he=gethostbyname(addr);
-
- for(i=0;he->h_addr_list[i];i++) {
-  printf("%u.%u.%u.%u\n",
-         (unsigned char)he->h_addr_list[i][0],
-         (unsigned char)he->h_addr_list[i][1],
-         (unsigned char)he->h_addr_list[i][2],
-         (unsigned char)he->h_addr_list[i][3]);
+ struct in6_addr saddr6;
+ struct hostent *he;
+ if(argc<2) return 1;
+ if(!(he=gethostbyname2(
+   argc<3
+   ?inet_aton(argv[1],&saddr)
+     ?inet_ntoa(saddr)
+     :argv[1]
+   :inet_pton(AF_INET6,argv[1],&saddr6)
+     ?inet_ntop(AF_INET6,&saddr6,buf,SILLYLIMIT) //no point, but whatever
+     :argv[1]
+  ,argc<3?AF_INET:AF_INET6))) return 1;
+ for(;*(he->h_addr_list);he->h_addr_list++) {
+  printf("%s\n",inet_ntop(argc<3?AF_INET:AF_INET6,*(he->h_addr_list),buf,SILLYLIMIT));
  }
  return 0;
 }