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-rw-r--r--src/coredump/coredump.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/coredump/coredump.c b/src/coredump/coredump.c
index 01fdcfa909..999de63900 100644
--- a/src/coredump/coredump.c
+++ b/src/coredump/coredump.c
@@ -739,15 +739,16 @@ static int process_socket(int fd) {
.msg_iovlen = 1,
};
ssize_t n;
- int l;
+ ssize_t l;
if (!GREEDY_REALLOC(iovec, n_iovec_allocated, n_iovec + 3)) {
r = log_oom();
goto finish;
}
- if (ioctl(fd, FIONREAD, &l) < 0) {
- r = log_error_errno(errno, "FIONREAD failed: %m");
+ l = next_datagram_size_fd(fd);
+ if (l < 0) {
+ r = log_error_errno(l, "Failed to determine datagram size to read: %m");
goto finish;
}