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Code Issues Releases Activity

avformat/tls_openssl: properly limit written size to data mtu

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This commit is contained in:
Timo Rothenpieler
2025-07-13 16:08:33 +02:00
parent 576f44016a
commit f3355a1fff
1 changed files with 5 additions and 0 deletions
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5
libavformat/tls_openssl.c
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@ -987,9 +987,14 @@ static int tls_write(URLContext *h, const uint8_t *buf, int size)
URLContext *uc = c->tls_shared.is_dtls ? c->tls_shared.udp
: c->tls_shared.tcp;
int ret;
// Set or clear the AVIO_FLAG_NONBLOCK on c->tls_shared.tcp
uc->flags &= ~AVIO_FLAG_NONBLOCK;
uc->flags |= h->flags & AVIO_FLAG_NONBLOCK;
if (c->tls_shared.is_dtls)
size = FFMIN(size, DTLS_get_data_mtu(c->ssl));
ret = SSL_write(c->ssl, buf, size);
if (ret > 0)
return ret;