diff options
Diffstat (limited to 'src/crypto/bio/printf.c')
| -rw-r--r-- | src/crypto/bio/printf.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/crypto/bio/printf.c b/src/crypto/bio/printf.c index 2f5ae4a..3709fcb 100644 --- a/src/crypto/bio/printf.c +++ b/src/crypto/bio/printf.c @@ -87,7 +87,11 @@ int BIO_printf(BIO *bio, const char *format, ...) { } #endif - if (out_len >= sizeof(buf)) { + if (out_len < 0) { + return -1; + } + + if ((size_t) out_len >= sizeof(buf)) { const int requested_len = out_len; /* The output was truncated. Note that vsnprintf's return value * does not include a trailing NUL, but the buffer must be sized |