Author: pjd
Date: Sat Sep 22 17:46:53 2012
New Revision: 240832
URL: http://svn.freebsd.org/changeset/base/240832
Log:
Make the example a bit more pretty.
Modified:
head/share/man/man4/ip6.4
Modified: head/share/man/man4/ip6.4
==============================================================================
--- head/share/man/man4/ip6.4 Sat Sep 22 17:42:53 2012 (r240831)
+++ head/share/man/man4/ip6.4 Sat Sep 22 17:46:53 2012 (r240832)
@@ -570,7 +570,8 @@ struct iovec iov[2];
u_char buf[BUFSIZ];
struct cmsghdr *cm;
struct msghdr m;
-int found, optval;
+int optval;
+bool found;
u_char data[2048];
/* Create socket. */
@@ -597,8 +598,8 @@ if (setsockopt(s, IPPROTO_IPV6, IPV6_HOP
sizeof(optval)) == -1)
err(1, "setsockopt");
-found = 0;
-while (!found) {
+found = false;
+do {
if (recvmsg(s, &m, 0) == -1)
err(1, "recvmsg");
for (cm = CMSG_FIRSTHDR(&m); cm != NULL;
@@ -606,13 +607,13 @@ while (!found) {
if (cm->cmsg_level == IPPROTO_IPV6 &&
cm->cmsg_type == IPV6_HOPLIMIT &&
cm->cmsg_len == CMSG_LEN(sizeof(int))) {
- found = 1;
+ found = true;
(void)printf("hop limit: %d\en",
*(int *)CMSG_DATA(cm));
break;
}
}
-}
+} while (!found);
.Ed
.Sh DIAGNOSTICS
A socket operation may fail with one of the following errors returned:
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