Add gatutil.c to share common APIs with GAtServer

Add gatutil.c/h gat.h and move shared typedef and APIs into it.
So that they can be shared by GAtServer and GAtChat.

1 files changed, 129 insertions, 0 deletions

diff --git a/gatchat/gatutil.c b/gatchat/gatutil.c
new file mode 100644
index 00000000..6bc5dcbb
--- /dev/null
+++ b/gatchat/gatutil.c
@@ -0,0 +1,129 @@
+/*
+ *
+ *  AT chat library with GLib integration
+ *
+ *  Copyright (C) 2008-2010  Intel Corporation. All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <string.h>
+#include <ctype.h>
+
+#include <glib.h>
+
+#include "gatutil.h"
+
+void g_at_util_debug_chat(GAtDebugFunc debugf, gboolean in, const char *str,
+						gsize len, gpointer user_data)
+{
+	char type = in ? '<' : '>';
+	gsize escaped = 2; /* Enough for '<', ' ' */
+	char *escaped_str;
+	const char *esc = "<ESC>";
+	gsize esc_size = strlen(esc);
+	const char *ctrlz = "<CtrlZ>";
+	gsize ctrlz_size = strlen(ctrlz);
+	gsize i;
+
+	if (!debugf || !len)
+		return;
+
+	for (i = 0; i < len; i++) {
+		char c = str[i];
+
+		if (isprint(c))
+			escaped += 1;
+		else if (c == '\r' || c == '\t' || c == '\n')
+			escaped += 2;
+		else if (c == 26)
+			escaped += ctrlz_size;
+		else if (c == 25)
+			escaped += esc_size;
+		else
+			escaped += 4;
+	}
+
+	escaped_str = g_malloc(escaped + 1);
+	escaped_str[0] = type;
+	escaped_str[1] = ' ';
+	escaped_str[2] = '\0';
+	escaped_str[escaped] = '\0';
+
+	for (escaped = 2, i = 0; i < len; i++) {
+		char c = str[i];
+
+		switch (c) {
+		case '\r':
+			escaped_str[escaped++] = '\\';
+			escaped_str[escaped++] = 'r';
+			break;
+		case '\t':
+			escaped_str[escaped++] = '\\';
+			escaped_str[escaped++] = 't';
+			break;
+		case '\n':
+			escaped_str[escaped++] = '\\';
+			escaped_str[escaped++] = 'n';
+			break;
+		case 26:
+			strncpy(&escaped_str[escaped], ctrlz, ctrlz_size);
+			escaped += ctrlz_size;
+			break;
+		case 25:
+			strncpy(&escaped_str[escaped], esc, esc_size);
+			escaped += esc_size;
+			break;
+		default:
+			if (isprint(c))
+				escaped_str[escaped++] = c;
+			else {
+				escaped_str[escaped++] = '\\';
+				escaped_str[escaped++] = '0' + ((c >> 6) & 07);
+				escaped_str[escaped++] = '0' + ((c >> 3) & 07);
+				escaped_str[escaped++] = '0' + (c & 07);
+			}
+		}
+	}
+
+	debugf(escaped_str, user_data);
+	g_free(escaped_str);
+}
+
+gboolean g_at_util_setup_io(GIOChannel *io)
+{
+	GIOFlags io_flags;
+
+	if (g_io_channel_set_encoding(io, NULL, NULL) !=
+			G_IO_STATUS_NORMAL)
+		return FALSE;
+
+	io_flags = g_io_channel_get_flags(io);
+
+	io_flags |= G_IO_FLAG_NONBLOCK;
+
+	if (g_io_channel_set_flags(io, io_flags, NULL) !=
+			G_IO_STATUS_NORMAL)
+		return FALSE;
+
+	g_io_channel_set_close_on_unref(io, TRUE);
+
+	return TRUE;
+}
+