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authorMax Kellermann <max@duempel.org>2009-02-28 15:12:24 +0100
committerMax Kellermann <max@duempel.org>2009-02-28 15:12:24 +0100
commitb55d9fcdb8a4ad0164f34f45d523bf165bcb496d (patch)
treee1db81d9eb41629ee342d2a15e32e0f4091cabc3
parent0fcb7dc65cea3c72fad8a8b261f5a6a324a3bd33 (diff)
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socket_util: added function sockaddr_to_string()
Create the socket_util.c library, the first function is sockaddr_to_string(): it converts a sockaddr struct to a string containing the IP address in a human-readable form.
-rw-r--r--Makefile.am2
-rw-r--r--src/socket_util.c56
-rw-r--r--src/socket_util.h45
3 files changed, 103 insertions, 0 deletions
diff --git a/Makefile.am b/Makefile.am
index 55e64a046..aca80fd33 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -113,6 +113,7 @@ mpd_headers = \
src/song_save.h \
src/song_sticker.h \
src/songvec.h \
+ src/socket_util.h \
src/state_file.h \
src/stats.h \
src/sticker.h \
@@ -201,6 +202,7 @@ src_mpd_SOURCES = \
src/song_print.c \
src/song_save.c \
src/songvec.c \
+ src/socket_util.c \
src/state_file.c \
src/stats.c \
src/tag.c \
diff --git a/src/socket_util.c b/src/socket_util.c
new file mode 100644
index 000000000..240577fc6
--- /dev/null
+++ b/src/socket_util.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2003-2009 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "socket_util.h"
+#include "config.h"
+
+#include <sys/socket.h>
+#include <netdb.h>
+
+#ifdef HAVE_IPV6
+#include <string.h>
+#endif
+
+char *
+sockaddr_to_string(const struct sockaddr *sa, size_t length, GError **error)
+{
+ int ret;
+ char host[NI_MAXHOST], serv[NI_MAXSERV];
+
+ ret = getnameinfo(sa, length, host, sizeof(host), serv, sizeof(serv),
+ NI_NUMERICHOST|NI_NUMERICSERV);
+ if (ret != 0) {
+ g_set_error(error, g_quark_from_static_string("netdb"), ret,
+ gai_strerror(ret));
+ return NULL;
+ }
+
+#ifdef HAVE_UN
+ if (sa->sa_family == AF_UNIX)
+ /* "serv" contains corrupt information with unix
+ sockets */
+ return g_strdup(host);
+#endif
+
+#ifdef HAVE_IPV6
+ if (strchr(host, ':') != NULL)
+ return g_strconcat("[", host, "]:", serv, NULL);
+#endif
+
+ return g_strconcat(host, ":", serv, NULL);
+}
diff --git a/src/socket_util.h b/src/socket_util.h
new file mode 100644
index 000000000..7182771cb
--- /dev/null
+++ b/src/socket_util.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2003-2009 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ * This library provides easy helper functions for working with
+ * sockets.
+ *
+ */
+
+#ifndef SOCKET_UTIL_H
+#define SOCKET_UTIL_H
+
+#include <glib.h>
+
+struct sockaddr;
+
+/**
+ * Converts the specified socket address into a string in the form
+ * "IP:PORT". The return value must be freed with g_free() when you
+ * don't need it anymore.
+ *
+ * @param sa the sockaddr struct
+ * @param length the length of #sa in bytes
+ * @param error location to store the error occuring, or NULL to
+ * ignore errors
+ */
+char *
+sockaddr_to_string(const struct sockaddr *sa, size_t length, GError **error);
+
+#endif