diff options
Diffstat (limited to 'debug/vsprintf_chk.c')
| -rw-r--r-- | debug/vsprintf_chk.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/debug/vsprintf_chk.c b/debug/vsprintf_chk.c index 7ef8cf3..c93ca4e 100644 --- a/debug/vsprintf_chk.c +++ b/debug/vsprintf_chk.c @@ -25,6 +25,10 @@ ___vsprintf_chk (char *s, int flag, size_t slen, const char *format, can only come from read-only format strings. */ unsigned int mode = (flag > 0) ? PRINTF_FORTIFY : 0; + /* Regardless of the value of flag, let __vsprintf_internal know that + this is a call from *printf_chk. */ + mode |= PRINTF_CHK; + if (slen == 0) __chk_fail (); |