PVS-Studio warning V541 for UCSniff

int hex_format(...., u_char *dst)
{
  ...
  sprintf(dst, "%s %04x: ", dst, i );
  ...
}

The code might work, but this is a dangerous game.


This suspicious code was found in UCSniff project by PVS-Studio static code analyzer.
Warning message is:
V541 It is dangerous to print the string 'dst' into itself.  vc_format.c 177

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/