[PATCH 3/6] daemon: move locate_host to tcp.c

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Keep the different name resolution functions close together so they
can learn from each other and perhaps share code in the future.

Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx>
---
 Makefile |    2 +-
 daemon.c |   62 ++------------------------------------------------------------
 tcp.c    |   53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 tcp.h    |    3 +++
 4 files changed, 59 insertions(+), 61 deletions(-)

diff --git a/Makefile b/Makefile
index fa3a47f..df84157 100644
--- a/Makefile
+++ b/Makefile
@@ -1959,7 +1959,7 @@ builtin/prune.o builtin/reflog.o reachable.o: reachable.h
 builtin/commit.o builtin/revert.o wt-status.o: wt-status.h
 builtin/tar-tree.o archive-tar.o: tar.h
 connect.o transport.o http-backend.o: url.h
-connect.o tcp.o: tcp.h
+connect.o daemon.o tcp.o: tcp.h
 http-fetch.o http-walker.o remote-curl.o transport.o walker.o: walker.h
 http.o http-walker.o http-push.o http-fetch.o remote-curl.o: http.h url.h
 
diff --git a/daemon.c b/daemon.c
index 3958cb6..3261616 100644
--- a/daemon.c
+++ b/daemon.c
@@ -1,5 +1,6 @@
 #include "cache.h"
 #include "pkt-line.h"
+#include "tcp.h"
 #include "exec_cmd.h"
 #include "run-command.h"
 #include "strbuf.h"
@@ -432,65 +433,6 @@ static void parse_host_and_port(char *hostport, char **host,
 	}
 }
 
-#ifndef NO_IPV6
-
-static void locate_host(const char *hostname, char **ip_address,
-						char **canon_hostname)
-{
-	struct addrinfo hints;
-	struct addrinfo *ai;
-	int gai;
-	static char addrbuf[HOST_NAME_MAX + 1];
-	struct sockaddr_in *sin_addr;
-
-	memset(&hints, 0, sizeof(hints));
-	hints.ai_flags = AI_CANONNAME;
-
-	gai = getaddrinfo(hostname, NULL, &hints, &ai);
-	if (gai)
-		return;
-
-	sin_addr = (void *)ai->ai_addr;
-	inet_ntop(AF_INET, &sin_addr->sin_addr, addrbuf, sizeof(addrbuf));
-	free(*ip_address);
-	*ip_address = xstrdup(addrbuf);
-
-	free(*canon_hostname);
-	*canon_hostname = xstrdup(ai->ai_canonname ?
-				  ai->ai_canonname : *ip_address);
-
-	freeaddrinfo(ai);
-}
-
-#else
-
-static void locate_host(const char *hostname, char **ip_address,
-						char **canon_hostname)
-{
-	struct hostent *hent;
-	struct sockaddr_in sa;
-	char **ap;
-	static char addrbuf[HOST_NAME_MAX + 1];
-
-	hent = gethostbyname(hostname);
-
-	ap = hent->h_addr_list;
-	memset(&sa, 0, sizeof sa);
-	sa.sin_family = hent->h_addrtype;
-	sa.sin_port = htons(0);
-	memcpy(&sa.sin_addr, *ap, hent->h_length);
-
-	inet_ntop(hent->h_addrtype, &sa.sin_addr,
-		  addrbuf, sizeof(addrbuf));
-
-	free(*canon_hostname);
-	*canon_hostname = xstrdup(hent->h_name);
-	free(*ip_address);
-	*ip_address = xstrdup(addrbuf);
-}
-
-#endif
-
 /*
  * Read the host as supplied by the client connection.
  */
@@ -530,7 +472,7 @@ static void parse_host_arg(char *extra_args, int buflen)
 	 * if possible.
 	 */
 	if (hostname)
-		locate_host(hostname, &ip_address, &canon_hostname);
+		git_locate_host(hostname, &ip_address, &canon_hostname);
 }
 
 
diff --git a/tcp.c b/tcp.c
index 89f5c62..2cb90db 100644
--- a/tcp.c
+++ b/tcp.c
@@ -97,6 +97,34 @@ static const char *ai_name(const struct addrinfo *ai)
 	return addr;
 }
 
+void git_locate_host(const char *hostname, char **ip_address,
+					char **canon_hostname)
+{
+	struct addrinfo hints;
+	struct addrinfo *ai;
+	int gai;
+	static char addrbuf[HOST_NAME_MAX + 1];
+	struct sockaddr_in *sin_addr;
+
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_flags = AI_CANONNAME;
+
+	gai = getaddrinfo(hostname, NULL, &hints, &ai);
+	if (gai)
+		return;
+
+	sin_addr = (void *)ai->ai_addr;
+	inet_ntop(AF_INET, &sin_addr->sin_addr, addrbuf, sizeof(addrbuf));
+	free(*ip_address);
+	*ip_address = xstrdup(addrbuf);
+
+	free(*canon_hostname);
+	*canon_hostname = xstrdup(ai->ai_canonname ?
+				  ai->ai_canonname : *ip_address);
+
+	freeaddrinfo(ai);
+}
+
 /*
  * Returns a connected socket() fd, or else die()s.
  */
@@ -162,6 +190,31 @@ static int git_tcp_connect_sock(char *host, int flags)
 
 #else /* NO_IPV6 */
 
+void git_locate_host(const char *hostname, char **ip_address,
+					char **canon_hostname)
+{
+	struct hostent *hent;
+	struct sockaddr_in sa;
+	char **ap;
+	static char addrbuf[HOST_NAME_MAX + 1];
+
+	hent = gethostbyname(hostname);
+
+	ap = hent->h_addr_list;
+	memset(&sa, 0, sizeof sa);
+	sa.sin_family = hent->h_addrtype;
+	sa.sin_port = htons(0);
+	memcpy(&sa.sin_addr, *ap, hent->h_length);
+
+	inet_ntop(hent->h_addrtype, &sa.sin_addr,
+		  addrbuf, sizeof(addrbuf));
+
+	free(*canon_hostname);
+	*canon_hostname = xstrdup(hent->h_name);
+	free(*ip_address);
+	*ip_address = xstrdup(addrbuf);
+}
+
 /*
  * Returns a connected socket() fd, or else die()s.
  */
diff --git a/tcp.h b/tcp.h
index 4de5f71..bed3cdc 100644
--- a/tcp.h
+++ b/tcp.h
@@ -1,6 +1,9 @@
 #ifndef TCP_H
 #define TCP_H
 
+extern void git_locate_host(const char *hostname,
+			char **ip_address, char **canon_hostname);
+
 extern int git_use_proxy(const char *host);
 extern void git_tcp_connect(int fd[2], char *host, int flags);
 extern struct child_process *git_proxy_connect(int fd[2], char *host);
-- 
1.7.5.3

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