diff options
Diffstat (limited to 'src/string.cpp')
| -rw-r--r-- | src/string.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/string.cpp b/src/string.cpp index 4556ac64b..eeca3e809 100644 --- a/src/string.cpp +++ b/src/string.cpp @@ -160,11 +160,16 @@ int CDECL snprintf(char *str, size_t size, const char *format, ...) } #ifdef _MSC_VER +/* *nprintf broken, not POSIX compliant, MSDN description + * - If len < count, then len characters are stored in buffer, a null-terminator is appended, and len is returned. + * - If len = count, then len characters are stored in buffer, no null-terminator is appended, and len is returned. + * - If len > count, then count characters are stored in buffer, no null-terminator is appended, and a negative value is returned + */ int CDECL vsnprintf(char *str, size_t size, const char *format, va_list ap) { int ret; ret = _vsnprintf(str, size, format, ap); - if (ret < 0) str[size - 1] = '\0'; + if (ret < 0 || ret == 0) str[size - 1] = '\0'; return ret; } #endif /* _MSC_VER */ |