Added silc_strncat.

diff --git a/lib/silcutil/silcstrutil.c b/lib/silcutil/silcstrutil.c
index 53c1a0241b9805731967f996c0e2f4571a5be9df..b685f0557d0b10613f984d09ffcb6a928030fccb 100644 (file)
--- a/lib/silcutil/silcstrutil.c
+++ b/lib/silcutil/silcstrutil.c
@@ -574,3 +574,25 @@ silc_mime_parse(const unsigned char *mime, SilcUInt32 mime_len,
 
   return TRUE;
 }
+
+/* Concatenates the `src' into `dest'.  If `src_len' is more than the
+   size of the `dest' (minus NULL at the end) the `src' will be
+   truncated to fit. */
+
+char *silc_strncat(char *dest, SilcUInt32 dest_size,
+                  const char *src, SilcUInt32 src_len)
+{
+  int len;
+
+  dest[dest_size - 1] = '\0';
+
+  len = dest_size - 1 - strlen(dest);
+  if (len < src_len) {
+    if (len > 0)
+      strncat(dest, src, len);
+  } else {
+    strncat(dest, src, src_len);
+  }
+
+  return dest;
+}

diff --git a/lib/silcutil/silcstrutil.h b/lib/silcutil/silcstrutil.h
index 1f0608cf02720e317be5ec8254e134080f0cf346..e29be0724152d616371c53980e236a9488b3c3ac 100644 (file)
--- a/lib/silcutil/silcstrutil.h
+++ b/lib/silcutil/silcstrutil.h
@@ -214,4 +214,21 @@ silc_mime_parse(const unsigned char *mime, SilcUInt32 mime_len,
                 char *transfer_encoding, SilcUInt32 transfer_encoding_size,
                 unsigned char **mime_data_ptr, SilcUInt32 *mime_data_len);
 
+/****f* silcutil/SilcStrUtilAPI/silc_strncat
+ *
+ * SYNOPSIS
+ *
+ *    char *silc_strncat(char *dest, SilcUInt32 dest_size,
+ *                       const char *src, SilcUInt32 src_len);
+ *
+ * DESCRIPTION
+ *
+ *    Concatenates the `src' into `dest'.  If `src_len' is more than the
+ *    size of the `dest' (minus NULL at the end) the `src' will be
+ *    truncated to fit.
+ *
+ ***/
+char *silc_strncat(char *dest, SilcUInt32 dest_size,
+                  const char *src, SilcUInt32 src_len);
+
 #endif /* SILCSTRUTIL_H */