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authorLudovic Courtès <ludo@gnu.org>2021-07-31 15:44:58 +0200
committerLudovic Courtès <ludo@gnu.org>2021-07-31 15:44:58 +0200
commit69dde4e354efee56422eb3527691b0714b596b49 (patch)
tree250cba8f1b8bebd0170b122eab15293aea59fe03 /gnu/packages/patches
parent2c0013916e87acc90562dea167a6ff3e1dfee58e (diff)
gnu: gnutls: Patch the Guile bindings for EINTR/EAGAIN handling.
* gnu/packages/patches/gnutls-guile-eintr-eagain.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/tls.scm (gnutls)[source]: Use it.
Diffstat (limited to 'gnu/packages/patches')
-rw-r--r--gnu/packages/patches/gnutls-guile-eintr-eagain.patch56
1 files changed, 56 insertions, 0 deletions
diff --git a/gnu/packages/patches/gnutls-guile-eintr-eagain.patch b/gnu/packages/patches/gnutls-guile-eintr-eagain.patch
new file mode 100644
index 0000000000..e04c945158
--- /dev/null
+++ b/gnu/packages/patches/gnutls-guile-eintr-eagain.patch
@@ -0,0 +1,56 @@
+Fixes <https://issues.guix.gnu.org/47867>.
+
+This fix was merged upstream
+in <https://gitlab.com/gnutls/gnutls/-/merge_requests/1417> and will
+be in GnuTLS 3.7.3. Upstream commit:
+
+commit 110e2172dbef1fbdf7399dab1e80780847b61c0c
+Author: Ludovic Courtès <ludo@gnu.org>
+Date: Sat Apr 24 22:02:14 2021 +0200
+
+ guile: Writes to record ports handle EAGAIN/EINTR transparently.
+
+diff --git a/guile/src/core.c b/guile/src/core.c
+index a13670fc7b..0926dc8a97 100644
+--- a/guile/src/core.c
++++ b/guile/src/core.c
+@@ -985,7 +985,10 @@ write_to_session_record_port (SCM port, const void *data, size_t size)
+ c_result = gnutls_record_send (c_session, (char *) data + c_sent,
+ size - c_sent);
+ if (EXPECT_FALSE (c_result < 0))
+- scm_gnutls_error (c_result, FUNC_NAME);
++ {
++ if (c_result != GNUTLS_E_AGAIN && c_result != GNUTLS_E_INTERRUPTED)
++ scm_gnutls_error (c_result, FUNC_NAME);
++ }
+ else
+ c_sent += c_result;
+ }
+@@ -1069,7 +1072,8 @@ read_from_session_record_port (SCM port, SCM dst, size_t start, size_t count)
+ #undef FUNC_NAME
+
+ /* Return the file descriptor that backs PORT. This function is called upon a
+- blocking read--i.e., 'read_from_session_record_port' returned -1. */
++ blocking read--i.e., 'read_from_session_record_port' or
++ 'write_to_session_record_port' returned -1. */
+ static int
+ session_record_port_fd (SCM port)
+ {
+@@ -1097,7 +1101,16 @@ write_to_session_record_port (SCM port, SCM src, size_t start, size_t count)
+ c_session = scm_to_gnutls_session (session, 1, FUNC_NAME);
+ data = (char *) SCM_BYTEVECTOR_CONTENTS (src) + start;
+
+- result = gnutls_record_send (c_session, data, count);
++ do
++ result = gnutls_record_send (c_session, data, count);
++ while (result == GNUTLS_E_INTERRUPTED
++ || (result == GNUTLS_E_AGAIN
++ && !SCM_GNUTLS_SESSION_TRANSPORT_IS_FD (c_session)));
++
++ if (result == GNUTLS_E_AGAIN
++ && SCM_GNUTLS_SESSION_TRANSPORT_IS_FD (c_session))
++ /* Tell Guile that reading would block. */
++ return (size_t) -1;
+
+ if (EXPECT_FALSE (result < 0))
+ scm_gnutls_error (result, FUNC_NAME);