30 lines
805 B
C
30 lines
805 B
C
// 31 may 2019
|
|
// only requires strsafe_header.h if you don't define sharedbitsStatic as static
|
|
|
|
#include "start.h"
|
|
|
|
#ifdef sharedbitsStatic
|
|
sharedbitsStatic
|
|
#endif
|
|
int sharedbitsPrefixName(Vsnprintf)(char *s, size_t n, const char *fmt, va_list ap)
|
|
{
|
|
#ifdef _WIN32
|
|
int ret;
|
|
|
|
if (s == NULL && n == 0)
|
|
return _vscprintf(fmt, ap);
|
|
// TODO figure out how to disambiguate between encoding errors (returns negative value; does not have documented errno values), other errors (returns negative value; errno == EINVAL), and truncations (returns -1; does not have documented errno values)
|
|
ret = vsnprintf_s(s, n, _TRUNCATE, fmt, ap);
|
|
if (ret == -1)
|
|
// TODO make this safe
|
|
return (int) n;
|
|
return ret;
|
|
#else
|
|
return vsnprintf(s, n, fmt, ap);
|
|
#endif
|
|
}
|
|
|
|
#include "end.h"
|
|
|
|
#include "strsafe_strncpy_impl.h"
|