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An update to as-yet unused new feature of snprintf, which was added to bring

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our sprintf()-alike in sync with our fprintf()-alike features.


strings/my_vsnprintf.c:
  Advance the destination pointer properly.
  
  Also, pay attention to the "n" in snprintf() -- never write too much.
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2006-05-02 13:42:35 -04:00
parent 4d1cd02ef6
commit 28d799f100
1 changed files with 5 additions and 1 deletions
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6
strings/my_vsnprintf.c
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@ -99,7 +99,11 @@ int my_vsnprintf(char *to, size_t n, const char* fmt, va_list ap)
else if (*fmt == 'b') /* Buffer parameter */ else if (*fmt == 'b') /* Buffer parameter */
{ {
char *par = va_arg(ap, char *); char *par = va_arg(ap, char *);
to=memmove(to, par, abs(width)); DBUG_ASSERT(to <= end);
if (to + abs(width) + 1 > end)
width= end - to - 1; /* sign doesn't matter */
memmove(to, par, abs(width));
to+= width;
continue; continue;
} }
else if (*fmt == 'd' || *fmt == 'u'|| *fmt== 'x') /* Integer parameter */ else if (*fmt == 'd' || *fmt == 'u'|| *fmt== 'x') /* Integer parameter */