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DTLS: honor configured MTU for SCTP application data #11192

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cpross wants to merge 1 commit into from
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DTLS: honor configured MTU for SCTP application data #11192

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6 changes: 5 additions & 1 deletion examples/sctp/sctp-client-dtls.c
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Original file line number Diff line number Diff line change
Expand Up @@ -113,7 +113,11 @@ int main(int argc, char **argv)

for (i = 0; i < (int)sizeof(bigBuf); i++)
bigBuf[i] = (unsigned char)(i & 0xFF);
wolfSSL_write(ssl, bigBuf, sizeof(bigBuf));
ret = wolfSSL_write(ssl, bigBuf, sizeof(bigBuf));
if (ret != (int)sizeof(bigBuf)) {
fprintf(stderr, "ssl write big message failed\n");
exit(EXIT_FAILURE);
}
memset(bigBuf, 0, sizeof(bigBuf));

wolfSSL_read(ssl, bigBuf, sizeof(bigBuf));
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6 changes: 5 additions & 1 deletion examples/sctp/sctp-server-dtls.c
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Expand Up @@ -122,7 +122,11 @@ int main(int argc, char **argv)
unsigned char bigBuf[4096];

wolfSSL_read(ssl, bigBuf, sizeof(bigBuf));
wolfSSL_write(ssl, bigBuf, sizeof(bigBuf));
ret = wolfSSL_write(ssl, bigBuf, sizeof(bigBuf));
if (ret != (int)sizeof(bigBuf)) {
fprintf(stderr, "ssl write big message failed\n");
exit(EXIT_FAILURE);
}

wolfSSL_shutdown(ssl);
wolfSSL_free(ssl);
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2 changes: 1 addition & 1 deletion src/internal.c
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Expand Up @@ -28963,7 +28963,7 @@ int SendData(WOLFSSL* ssl, const void* data, size_t sz)
}
#if defined(WOLFSSL_DTLS)
if (ssl->options.dtls) {
#if defined(WOLFSSL_DTLS_MTU)
#if defined(WOLFSSL_SCTP) || defined(WOLFSSL_DTLS_MTU)
int mtu = ssl->dtlsMtuSz;
#else
int mtu = MAX_MTU;
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