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| author | pjd <pjd@FreeBSD.org> | 2012-09-22 17:46:53 +0000 |
|---|---|---|
| committer | pjd <pjd@FreeBSD.org> | 2012-09-22 17:46:53 +0000 |
| commit | 23996dabfa90b6706533b1052e49dfb7951ab8d6 (patch) | |
| tree | 630d6a16be7496c842c4c3f49ad8e74df866a981 /share/man/man4/ip6.4 | |
| parent | 02934e110a785a9a3f85509757c2a164e02801f6 (diff) | |
| download | FreeBSD-src-23996dabfa90b6706533b1052e49dfb7951ab8d6.zip FreeBSD-src-23996dabfa90b6706533b1052e49dfb7951ab8d6.tar.gz | |
Make the example a bit more pretty.
Diffstat (limited to 'share/man/man4/ip6.4')
| -rw-r--r-- | share/man/man4/ip6.4 | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/share/man/man4/ip6.4 b/share/man/man4/ip6.4 index fdbb956..fcd396c 100644 --- a/share/man/man4/ip6.4 +++ b/share/man/man4/ip6.4 @@ -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_HOPLIMIT, &optval, 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: |
