Initial repository (0.99 release tree)0.99

1 files changed, 148 insertions, 0 deletions

diff --git a/help.c b/help.c
new file mode 100644
index 00000000..12bb7a7f
--- /dev/null
+++ b/help.c
@@ -0,0 +1,148 @@
+  /********************************************************************\
+  * BitlBee -- An IRC to other IM-networks gateway                     *
+  *                                                                    *
+  * Copyright 2002-2004 Wilmer van der Gaast and others                *
+  \********************************************************************/
+
+/* Help file control                                                    */
+
+/*
+  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
+*/
+
+#define BITLBEE_CORE
+#include "bitlbee.h"
+#undef read 
+#undef write
+
+#define BUFSIZE 1100
+
+help_t *help_init( help_t **help )
+{
+	int i, buflen = 0;
+	help_t *h;
+	char *s, *t;
+	time_t mtime;
+	struct stat stat[1];
+	
+	*help = h = g_new0 ( help_t, 1 );
+	
+	h->fd = open( global.helpfile, O_RDONLY
+#ifdef _WIN32
+				  | O_BINARY
+#endif
+				  );
+	
+	if( h->fd == -1 )
+	{
+		g_free( h );
+		return( *help = NULL );
+	}
+	
+	if( fstat( h->fd, stat ) != 0 )
+	{
+		g_free( h );
+		return( *help = NULL );
+	}
+	mtime = stat->st_mtime;
+	
+	s = g_new (char, BUFSIZE + 1 );
+	s[BUFSIZE] = 0;
+	
+	while( ( ( i = read( h->fd, s + buflen, BUFSIZE - buflen ) ) > 0 ) ||
+	       ( i == 0 && strstr( s, "\n%\n" ) ) )
+	{
+		buflen += i;
+		memset( s + buflen, 0, BUFSIZE - buflen );
+		if( !( t = strstr( s, "\n%\n" ) ) || s[0] != '?' )
+		{
+			/* FIXME: Clean up */
+//			help_close( *help );
+			*help = NULL;
+			g_free( s );
+			return( NULL );
+		}
+		i = strchr( s, '\n' ) - s;
+		
+		if( h->string )
+		{
+			h = h->next = g_new0( help_t, 1 );
+		}
+		h->string = g_new ( char, i );
+		
+		strncpy( h->string, s + 1, i - 1 );
+		h->string[i-1] = 0;
+		h->fd = (*help)->fd;
+		h->offset.file_offset = lseek( h->fd, 0, SEEK_CUR ) - buflen + i + 1;
+		h->length = t - s - i - 1;
+		h->mtime = mtime;
+		
+		buflen -= ( t + 3 - s );
+		t = g_strdup( t + 3 );
+		g_free( s );
+		s = g_renew( char, t, BUFSIZE + 1 );
+		s[BUFSIZE] = 0;
+	}
+	
+	g_free( s );
+	
+	return( *help );
+}
+
+char *help_get( help_t **help, char *string )
+{
+	time_t mtime;
+	struct stat stat[1];
+	help_t *h;
+
+	h=*help;	
+
+	while( h )
+	{
+		if( g_strcasecmp( h->string, string ) == 0 ) break;
+		h = h->next;
+	}
+	if( h )
+	{
+		char *s = g_new( char, h->length + 1 );
+		
+		if( fstat( h->fd, stat ) != 0 )
+		{
+			g_free( h );
+			*help=NULL;
+			return( NULL );
+		}
+		mtime = stat->st_mtime;
+		
+		if( mtime > h->mtime ) {
+			return( NULL );
+			return( g_strdup( "Help file changed during this session. Please restart to get help back." ) );
+		}
+		s[h->length] = 0;
+		if( h->fd >= 0 )
+		{
+			lseek( h->fd, h->offset.file_offset, SEEK_SET );
+			read( h->fd, s, h->length );
+		}
+		else
+		{
+			strncpy( s, h->offset.mem_offset, h->length );
+		}
+		return( s );
+	}
+	
+	return( NULL );
+}