X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fportab%2Fstrlcpy.c;h=ae2018bcf940a3c47a1cc265740c58fbff70dce8;hp=40992c0826a2c9305278fe5846e28847992380fc;hb=03628dbeaf40a9de34b3eb6d5bf6dd34eed8248c;hpb=60cf07c8754c9291527fde2791e6353da7674d8c

diff --git a/src/portab/strlcpy.c b/src/portab/strlcpy.c
index 40992c08..ae2018bc 100644
--- a/src/portab/strlcpy.c
+++ b/src/portab/strlcpy.c
@@ -1,24 +1,78 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2005 Alexander Barton (alex@barton.de)
  *
  * 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.
  * Please read the file COPYING, README and AUTHORS for more information.
- *
- * strlcpy() and strlcat() replacement functions
  */
 
-
 #include "portab.h"
 
-static char UNUSED id[] = "$Id: strlcpy.c,v 1.1 2002/12/26 13:18:46 alex Exp $";
+/**
+ * @file
+ * strlcpy() and strlcat() replacement functions.
+ *
+ * See <http://www.openbsd.org/papers/strlcpy-paper.ps> for details.
+ *
+ * Code partially borrowed from compat.c of rsync, written by Andrew
+ * Tridgell (1998) and Martin Pool (2002):
+ * <http://cvs.samba.org/cgi-bin/cvsweb/rsync/lib/compat.c>
+ */
 
 #include "imp.h"
+#include <string.h>
+#include <sys/types.h>
 
 #include "exp.h"
 
 
+#ifndef HAVE_STRLCAT
+
+GLOBAL size_t
+strlcat( char *dst, const char *src, size_t size )
+{
+	/* Like strncat() but does not 0 fill the buffer and
+	 * always null terminates. */
+
+	size_t len1 = strlen( dst );
+	size_t len2 = strlen( src );
+	size_t ret = len1 + len2;
+
+	if( size && ( len1 < size - 1 )) {
+		if( len2 >= size - len1 )
+			len2 = size - len1 - 1;
+		memcpy( dst + len1, src, len2 );
+		dst[len1 + len2] = 0;
+	}
+	return ret;
+} /* strlcat */
+
+#endif
+
+
+#ifndef HAVE_STRLCPY
+
+GLOBAL size_t
+strlcpy( char *dst, const char *src, size_t size )
+{
+	/* Like strncpy but does not 0 fill the buffer and
+	 * always null terminates. */
+
+	size_t len = strlen( src );
+	size_t ret = len;
+
+	if( size > 0 ) {
+		if( len >= size ) len = size - 1;
+		memcpy( dst, src, len );
+		dst[len] = 0;
+	}
+	return ret;
+} /* strlcpy */
+
+#endif
+
+
 /* -eof- */