size = 512;
while (1) {
-#ifdef _WINDOWS
+#if defined _WINDOWS && _MSC_VER < 1900 /* 1900 == VS2015 has real snprintf */
#define vsnprintf _vsnprintf
#endif
#ifdef va_copy
int size = 512, len = 0;
while (fgets(ret + len, size - len, fp)) {
len += strlen(ret + len);
- if (ret[len-1] == '\n')
+ if (len > 0 && ret[len-1] == '\n')
break; /* got a newline, we're done */
size = len + 512;
ret = sresize(ret, size, char);