57 lines
2.1 KiB
Diff
57 lines
2.1 KiB
Diff
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Fixes <https://issues.guix.gnu.org/47867>.
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This fix was merged upstream
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in <https://gitlab.com/gnutls/gnutls/-/merge_requests/1417> and will
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be in GnuTLS 3.7.3. Upstream commit:
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commit 110e2172dbef1fbdf7399dab1e80780847b61c0c
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Author: Ludovic Courtès <ludo@gnu.org>
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Date: Sat Apr 24 22:02:14 2021 +0200
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guile: Writes to record ports handle EAGAIN/EINTR transparently.
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diff --git a/guile/src/core.c b/guile/src/core.c
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index a13670fc7b..0926dc8a97 100644
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--- a/guile/src/core.c
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+++ b/guile/src/core.c
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@@ -985,7 +985,10 @@ write_to_session_record_port (SCM port, const void *data, size_t size)
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c_result = gnutls_record_send (c_session, (char *) data + c_sent,
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size - c_sent);
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if (EXPECT_FALSE (c_result < 0))
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- scm_gnutls_error (c_result, FUNC_NAME);
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+ {
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+ if (c_result != GNUTLS_E_AGAIN && c_result != GNUTLS_E_INTERRUPTED)
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+ scm_gnutls_error (c_result, FUNC_NAME);
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+ }
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else
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c_sent += c_result;
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}
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@@ -1069,7 +1072,8 @@ read_from_session_record_port (SCM port, SCM dst, size_t start, size_t count)
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#undef FUNC_NAME
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/* Return the file descriptor that backs PORT. This function is called upon a
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- blocking read--i.e., 'read_from_session_record_port' returned -1. */
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+ blocking read--i.e., 'read_from_session_record_port' or
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+ 'write_to_session_record_port' returned -1. */
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static int
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session_record_port_fd (SCM port)
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{
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@@ -1097,7 +1101,16 @@ write_to_session_record_port (SCM port, SCM src, size_t start, size_t count)
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c_session = scm_to_gnutls_session (session, 1, FUNC_NAME);
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data = (char *) SCM_BYTEVECTOR_CONTENTS (src) + start;
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- result = gnutls_record_send (c_session, data, count);
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+ do
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+ result = gnutls_record_send (c_session, data, count);
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+ while (result == GNUTLS_E_INTERRUPTED
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+ || (result == GNUTLS_E_AGAIN
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+ && !SCM_GNUTLS_SESSION_TRANSPORT_IS_FD (c_session)));
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+
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+ if (result == GNUTLS_E_AGAIN
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+ && SCM_GNUTLS_SESSION_TRANSPORT_IS_FD (c_session))
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+ /* Tell Guile that reading would block. */
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+ return (size_t) -1;
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if (EXPECT_FALSE (result < 0))
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scm_gnutls_error (result, FUNC_NAME);
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