PVS-Studio warning V579 for UCSniff

int check_name_value(... ,char *target)
{
  ...
  memset(target,'\0',sizeof(target));
  ...
}

This suspicious code was found in UCSniff project by PVS-Studio static code analyzer.
Warning message is:
V579 The memset function receives the pointer and its size as arguments. It is possibly a mistake. Inspect the third argument.  directory_parser.c 1338

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/