X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=adns.git;a=blobdiff_plain;f=src%2Finternal.h;h=c7667382babd3adfec53dfde1e92e641c387c5d8;hp=9e442fed7135ff0c87fbf896645535100e2c3bb5;hb=626f869531a241dd8f187afb392a3151caf9a728;hpb=2953d358511ac5d196362f6b339c010d4e9cae3e

diff --git a/src/internal.h b/src/internal.h
index 9e442fe..c766738 100644
--- a/src/internal.h
+++ b/src/internal.h
@@ -58,6 +58,7 @@ typedef unsigned char byte;
 
 #define DNS_PORT 53
 #define DNS_MAXUDP 512
+#define DNS_MAXLABEL 63
 #define DNS_MAXDOMAIN 255
 #define DNS_HDRSIZE 12
 #define DNS_IDOFFSET 0
@@ -288,10 +289,10 @@ struct adns__state {
     server_ok, server_broken
   } tcpstate;
   struct timeval tcptimeout;
-  /* This will have tv_sec==0 if it is not valid.
-   * It will always be valid if tcpstate _connecting.
-   * When _ok, it will be nonzero if we are idle
-   * (ie, tcpw queue is empty) and counting down.
+  /* This will have tv_sec==0 if it is not valid.  It will always be
+   * valid if tcpstate _connecting.  When _ok, it will be nonzero if
+   * we are idle (ie, tcpw queue is empty), in which case it is the
+   * absolute time when we will close the connection.
    */
   struct sigaction stdsigpipe;
   sigset_t stdsigmask;
@@ -683,6 +684,9 @@ static inline int ctype_alpha(int c) {
   return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
 }
 static inline int ctype_822special(int c) { return strchr("()<>@,;:\\\".[]",c) != 0; }
+static inline int ctype_domainunquoted(int c) {
+  return ctype_alpha(c) || ctype_digit(c) || (strchr("-_/+",c) != 0);
+}
 
 static inline int errno_resources(int e) { return e==ENOMEM || e==ENOBUFS; }