Function cupsSetUserAgent

cups/usersys.c:544–681

 */

void
cupsSetUserAgent(const char *user_agent)/* I - User-Agent string or @code NULL@ */
{
  _cups_globals_t	*cg = _cupsGlobals();
					/* Thread globals */
#ifdef _WIN32
  SYSTEM_INFO		sysinfo;	/* System information */
  OSVERSIONINFOW	version;	/* OS version info */
  const char		*machine;	/* Hardware/machine name */
#elif defined(__APPLE__)
  struct utsname	name;		/* uname info */
  char			version[256];	/* macOS/iOS version */
  size_t		len;		/* Length of value */
#else
  struct utsname	name;		/* uname info */
#endif /* _WIN32 */


  if (user_agent)
  {
    strlcpy(cg->user_agent, user_agent, sizeof(cg->user_agent));
    return;
  }

  if (cg->uatokens < _CUPS_UATOKENS_OS)
  {
    switch (cg->uatokens)
    {
      default :
      case _CUPS_UATOKENS_NONE :
	  cg->user_agent[0] = '\0';
	  break;
      case _CUPS_UATOKENS_PRODUCT_ONLY :
	  strlcpy(cg->user_agent, "CUPS IPP", sizeof(cg->user_agent));
	  break;
      case _CUPS_UATOKENS_MAJOR :
	  snprintf(cg->user_agent, sizeof(cg->user_agent), "CUPS/%d IPP/2", CUPS_VERSION_MAJOR);
	  break;
      case _CUPS_UATOKENS_MINOR :
	  snprintf(cg->user_agent, sizeof(cg->user_agent), "CUPS/%d.%d IPP/2.1", CUPS_VERSION_MAJOR, CUPS_VERSION_MINOR);
	  break;
      case _CUPS_UATOKENS_MINIMAL :
	  strlcpy(cg->user_agent, CUPS_MINIMAL " IPP/2.1", sizeof(cg->user_agent));
	  break;
    }
    return;
  }

#ifdef _WIN32
 /*
  * Gather Windows version information for the User-Agent string...
  */

  typedef NTSTATUS(WINAPI * RtlGetVersionPtr)(PRTL_OSVERSIONINFOW);

  memset(&version, 0, sizeof(version));
  version.dwOSVersionInfoSize = sizeof(version);