New inaddr-str and in6addr-str functions.

* lisplib.c (sock_set_entries): Register autoload entries for
inaddr-str and in6addr-str. Register prefix symbol to be
interned.

* share/txr/stdlib/socket.tl (sockaddr-in, sockaddr-in6): Both
structs get a new member, prefix, defaulting to the respective
number of bits in the address.
(inaddr-str, in6addr-str): New functions.

* tests/014/iaddr-str, tests/014/inaddr-str.expected,
tests/014/in6addr-str.tl, tests/014/in6addr-str.expected:
New files

* txr.1: Documented.

1 files changed, 78 insertions, 0 deletions

diff --git a/tests/014/inaddr-str.tl b/tests/014/inaddr-str.tl
new file mode 100644
index 00000000..67283188
--- /dev/null
+++ b/tests/014/inaddr-str.tl
@@ -0,0 +1,78 @@
+(load "../common.tl")
+
+(test (inaddr-str "junk") :error)
+(test (inaddr-str "0.0.0.0.0") :error)
+(test (inaddr-str "0.0.0") :error)
+(test (inaddr-str "0") :error)
+(test (inaddr-str "") :error)
+(test (inaddr-str "0.0.0.nnn") :error)
+(test (inaddr-str "0.0.0.256") :error)
+(test (inaddr-str "0.0.256.0") :error)
+(test (inaddr-str "0.256.0.0") :error)
+(test (inaddr-str "256.0.0.0") :error)
+(test (inaddr-str "0.0.0.0:65537") :error)
+(test (inaddr-str "0.0.0.0/33") :error)
+(test (inaddr-str "0.0.0.0/32:65537") :error)
+(test (inaddr-str "0.0.0.0/33:0") :error)
+(test (inaddr-str "0.0.0.0:0/0") :error)
+(test (inaddr-str "0.0.0.") :error)
+(test (inaddr-str "0.0..0") :error)
+(test (inaddr-str "0..0.0") :error)
+(test (inaddr-str ".0.0.0") :error)
+(test (inaddr-str "0.0.0.0:") :error)
+
+(test (inaddr-str "0.0.0.0")
+      #S(sockaddr-in addr 0 port 0 prefix 32))
+(test (inaddr-str "1.2.3.4")
+      #S(sockaddr-in addr 16909060 port 0 prefix 32))
+(test (inaddr-str "255.255.255.255")
+      #S(sockaddr-in addr 4294967295 port 0 prefix 32))
+
+(test (inaddr-str "0.0.0.0:0")
+      #S(sockaddr-in addr 0 port 0 prefix 32))
+(test (inaddr-str "1.2.3.4:5")
+      #S(sockaddr-in addr 16909060 port 5 prefix 32))
+(test (inaddr-str "255.255.255.255:65535")
+      #S(sockaddr-in addr 4294967295 port 65535 prefix 32))
+
+(test (inaddr-str "0.0.0.0/0")
+      #S(sockaddr-in addr 0 port 0 prefix 0))
+(test (inaddr-str "1.2.3.4/8")
+      #S(sockaddr-in addr 16777216 port 0 prefix 8))
+(test (inaddr-str "255.255.255.255/24")
+      #S(sockaddr-in addr 4294967040 port 0 prefix 24))
+
+(test (inaddr-str "0.0.0/0")
+      #S(sockaddr-in addr 0 port 0 prefix 0))
+(test (inaddr-str "0.0/0")
+      #S(sockaddr-in addr 0 port 0 prefix 0))
+(test (inaddr-str "0/0")
+      #S(sockaddr-in addr 0 port 0 prefix 0))
+
+(test (inaddr-str "1.2.3/8")
+      #S(sockaddr-in addr 16777216 port 0 prefix 8))
+(test (inaddr-str "1.2/8")
+      #S(sockaddr-in addr 16777216 port 0 prefix 8))
+(test (inaddr-str "1/8")
+      #S(sockaddr-in addr 16777216 port 0 prefix 8))
+
+(test (inaddr-str "0.0.0.0/0:1234")
+      #S(sockaddr-in addr 0 port 1234 prefix 0))
+(test (inaddr-str "1.2.3.4/8:1234")
+      #S(sockaddr-in addr 16777216 port 1234 prefix 8))
+(test (inaddr-str "255.255.255.255/24:1234")
+      #S(sockaddr-in addr 4294967040 port 1234 prefix 24))
+
+(test (inaddr-str "0.0.0/0:1234")
+      #S(sockaddr-in addr 0 port 1234 prefix 0))
+(test (inaddr-str "0.0/0:1234")
+      #S(sockaddr-in addr 0 port 1234 prefix 0))
+(test (inaddr-str "0/0:1234")
+      #S(sockaddr-in addr 0 port 1234 prefix 0))
+
+(test (inaddr-str "1.2.3/8:1234")
+      #S(sockaddr-in addr 16777216 port 1234 prefix 8))
+(test (inaddr-str "1.2/8:1234")
+      #S(sockaddr-in addr 16777216 port 1234 prefix 8))
+(test (inaddr-str "1/8:1234")
+      #S(sockaddr-in addr 16777216 port 1234 prefix 8))