Perl (5.10) seems to handle this this way, util.c:
for apidoc my_snprintf
The C library C<snprintf> functionality, if available and
standards-compliant (uses C<vsnprintf>, actually). However, if the
C<vsnprintf> is not available, will unfortunately use the unsafe
C<vsprintf> which can overrun the buffer (there is an overrun check,
but that may be too late). Consider using C<sv_vcatpvf> instead, or
getting C<vsnprintf>.
int
Perl_my_snprintf(char *buffer, const Size_t len, const char *format,
...)
{
dTHX;
int retval;
va_list ap;
va_start(ap, format);
#ifdef HAS_VSNPRINTF
retval = vsnprintf(buffer, len, format, ap);
#else
retval = vsprintf(buffer, format, ap);
#endif
va_end(ap);
a
Andy Bach
Systems Mangler
Internet: [EMAIL PROTECTED]
Voice: (608) 261-5738 Fax: 264-5932
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