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-rw-r--r--source3/lib/sendfile.c28
1 files changed, 26 insertions, 2 deletions
diff --git a/source3/lib/sendfile.c b/source3/lib/sendfile.c
index 4aa76a0c74..75fb635fa2 100644
--- a/source3/lib/sendfile.c
+++ b/source3/lib/sendfile.c
@@ -65,8 +65,20 @@ ssize_t sys_sendfile(int tofd, int fromfd, const DATA_BLOB *header, SMB_OFF_T of
nwritten = sendfile(tofd, fromfd, &offset, total);
#endif
} while (nwritten == -1 && errno == EINTR);
- if (nwritten == -1)
+ if (nwritten == -1) {
+ if (errno == ENOSYS) {
+ /* Ok - we're in a world of pain here. We just sent
+ * the header, but the sendfile failed. We have to
+ * emulate the sendfile at an upper layer before we
+ * disable it's use. So we do something really ugly.
+ * We set the errno to a strange value so we can detect
+ * this at the upper level and take care of it without
+ * layer violation. JRA.
+ */
+ errno = EINTR; /* Normally we can never return this. */
+ }
return -1;
+ }
if (nwritten == 0)
return -1; /* I think we're at EOF here... */
total -= nwritten;
@@ -131,8 +143,20 @@ ssize_t sys_sendfile(int tofd, int fromfd, const DATA_BLOB *header, SMB_OFF_T of
do {
nwritten = sendfile(tofd, fromfd, &small_offset, small_total);
} while (nwritten == -1 && errno == EINTR);
- if (nwritten == -1)
+ if (nwritten == -1) {
+ if (errno == ENOSYS) {
+ /* Ok - we're in a world of pain here. We just sent
+ * the header, but the sendfile failed. We have to
+ * emulate the sendfile at an upper layer before we
+ * disable it's use. So we do something really ugly.
+ * We set the errno to a strange value so we can detect
+ * this at the upper level and take care of it without
+ * layer violation. JRA.
+ */
+ errno = EINTR; /* Normally we can never return this. */
+ }
return -1;
+ }
if (nwritten == 0)
return -1; /* I think we're at EOF here... */
small_total -= nwritten;