Add IPv6 support by implementing name resolution with the
protocol agnostic getaddrinfo(3) API. The old gethostbyname(3)
code is still available when git is compiled with NO_IPV6.
Signed-off-by: Elia Pinto <gitter.spi...@gmail.com>
---
ident.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/ident.c b/ident.c
index 5ff1aad..86b62be 100644
--- a/ident.c
+++ b/ident.c
@@ -69,6 +69,34 @@ static int add_mailname_host(struct strbuf *buf)
fclose(mailname);
return 0;
}
+#ifndef NO_IPV6
+
+static void add_domainname(struct strbuf *out)
+{
+ char buf[1024];
+ struct addrinfo hints, *ai;
+ int gai;
+
+ if (gethostname(buf, sizeof(buf))) {
+ warning("cannot get host name: %s", strerror(errno));
+ strbuf_addstr(out, "(none)");
+ return;
+ }
+ if (strchr(buf, '.'))
+ strbuf_addstr(out, buf);
+ else {
+ memset (&hints, '\0', sizeof (hints));
+ hints.ai_flags = AI_CANONNAME;
+ if (!(gai = getaddrinfo(buf, NULL, &hints, &ai)) && ai &&
strchr(ai->ai_canonname, '.')) {
+ strbuf_addstr(out, ai->ai_canonname);
+ freeaddrinfo(ai);
+ }
+ else
+ strbuf_addf(out, "%s.(none)", buf);
+ }
+}
+#else /* NO_IPV6 */
+
static void add_domainname(struct strbuf *out)
{
@@ -88,6 +116,8 @@ static void add_domainname(struct strbuf *out)
strbuf_addf(out, "%s.(none)", buf);
}
+#endif /* NO_IPV6 */
+
static void copy_email(const struct passwd *pw, struct strbuf *email)
{
/*
--
2.3.3.GIT
--
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