Merging loads of stuff from mainline.

1 files changed, 115 insertions, 0 deletions

diff --git a/irc_util.c b/irc_util.c
new file mode 100644
index 00000000..e73b86ae
--- /dev/null
+++ b/irc_util.c
@@ -0,0 +1,115 @@
+  /********************************************************************\
+  * BitlBee -- An IRC to other IM-networks gateway                     *
+  *                                                                    *
+  * Copyright 2002-2010 Wilmer van der Gaast and others                *
+  \********************************************************************/
+
+/* Some stuff that doesn't belong anywhere else.                        */
+
+/*
+  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 with
+  the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
+  if not, write to the Free Software Foundation, Inc., 59 Temple Place,
+  Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include "bitlbee.h"
+
+char *set_eval_timezone( set_t *set, char *value )
+{
+	char *s;
+	
+	if( strcmp( value, "local" ) == 0 ||
+	    strcmp( value, "gmt" ) == 0 || strcmp( value, "utc" ) == 0 )
+		return value;
+	
+	/* Otherwise: +/- at the beginning optional, then one or more numbers,
+	   possibly followed by a colon and more numbers. Don't bother bound-
+	   checking them since users are free to shoot themselves in the foot. */
+	s = value;
+	if( *s == '+' || *s == '-' )
+		s ++;
+	
+	/* \d+ */
+	if( !isdigit( *s ) )
+		return SET_INVALID;
+	while( *s && isdigit( *s ) ) s ++;
+	
+	/* EOS? */
+	if( *s == '\0' )
+		return value;
+	
+	/* Otherwise, colon */
+	if( *s != ':' )
+		return SET_INVALID;
+	s ++;
+	
+	/* \d+ */
+	if( !isdigit( *s ) )
+		return SET_INVALID;
+	while( *s && isdigit( *s ) ) s ++;
+	
+	/* EOS */
+	return *s == '\0' ? value : SET_INVALID;
+}
+
+char *irc_format_timestamp( irc_t *irc, time_t msg_ts )
+{
+	time_t now_ts = time( NULL );
+	struct tm now, msg;
+	char *set;
+	
+	/* If the timestamp is <= 0 or less than a minute ago, discard it as
+	   it doesn't seem to add to much useful info and/or might be noise. */
+	if( msg_ts <= 0 || msg_ts > now_ts - 60 )
+		return NULL;
+	
+	set = set_getstr( &irc->b->set, "timezone" );
+	if( strcmp( set, "local" ) == 0 )
+	{
+		localtime_r( &now_ts, &now );
+		localtime_r( &msg_ts, &msg );
+	}
+	else
+	{
+		int hr, min = 0, sign = 60;
+		
+		if( set[0] == '-' )
+		{
+			sign *= -1;
+			set ++;
+		}
+		else if( set[0] == '+' )
+		{
+			set ++;
+		}
+		
+		if( sscanf( set, "%d:%d", &hr, &min ) >= 1 )
+		{
+			msg_ts += sign * ( hr * 60 + min );
+			now_ts += sign * ( hr * 60 + min );
+		}
+		
+		gmtime_r( &now_ts, &now );
+		gmtime_r( &msg_ts, &msg );
+	}
+	
+	if( msg.tm_year == now.tm_year && msg.tm_yday == now.tm_yday )
+		return g_strdup_printf( "\x02[\x02\x02\x02%02d:%02d:%02d\x02]\x02 ",
+		                        msg.tm_hour, msg.tm_min, msg.tm_sec );
+	else
+		return g_strdup_printf( "\x02[\x02\x02\x02%04d-%02d-%02d "
+		                        "%02d:%02d:%02d\x02]\x02 ",
+		                        msg.tm_year + 1900, msg.tm_mon, msg.tm_mday,
+		                        msg.tm_hour, msg.tm_min, msg.tm_sec );
+}