0001-utils-Avoid-unnecessary-VLAs.patch (1742B)
- From 5b70e5f6af8d0688b8947c649acc2904cce96d3b Mon Sep 17 00:00:00 2001
- From: Michael Forney <mforney@mforney.org>
- Date: Tue, 4 Jul 2023 10:44:15 -0700
- Subject: [PATCH] utils: Avoid unnecessary VLAs
- ---
- utils.c | 10 ++++------
- 1 file changed, 4 insertions(+), 6 deletions(-)
- diff --git a/utils.c b/utils.c
- index 51875ae..8ab89bb 100644
- --- a/utils.c
- +++ b/utils.c
- @@ -758,15 +758,14 @@ send_pid_on_socket (int sockfd)
- char buf[1] = { 0 };
- struct msghdr msg = {};
- struct iovec iov = { buf, sizeof (buf) };
- - const ssize_t control_len_snd = CMSG_SPACE(sizeof(struct ucred));
- - _Alignas(struct cmsghdr) char control_buf_snd[control_len_snd];
- + _Alignas(struct cmsghdr) char control_buf_snd[CMSG_SPACE(sizeof(struct ucred))];
- struct cmsghdr *cmsg;
- struct ucred cred;
- msg.msg_iov = &iov;
- msg.msg_iovlen = 1;
- msg.msg_control = control_buf_snd;
- - msg.msg_controllen = control_len_snd;
- + msg.msg_controllen = sizeof (control_buf_snd);
- cmsg = CMSG_FIRSTHDR(&msg);
- cmsg->cmsg_level = SOL_SOCKET;
- @@ -800,14 +799,13 @@ read_pid_from_socket (int sockfd)
- char recv_buf[1] = { 0 };
- struct msghdr msg = {};
- struct iovec iov = { recv_buf, sizeof (recv_buf) };
- - const ssize_t control_len_rcv = CMSG_SPACE(sizeof(struct ucred));
- - _Alignas(struct cmsghdr) char control_buf_rcv[control_len_rcv];
- + _Alignas(struct cmsghdr) char control_buf_rcv[CMSG_SPACE(sizeof(struct ucred))];
- struct cmsghdr* cmsg;
- msg.msg_iov = &iov;
- msg.msg_iovlen = 1;
- msg.msg_control = control_buf_rcv;
- - msg.msg_controllen = control_len_rcv;
- + msg.msg_controllen = sizeof (control_buf_rcv);
- if (TEMP_FAILURE_RETRY (recvmsg (sockfd, &msg, 0)) < 0)
- die_with_error ("Can't read pid from socket");
- --
- 2.44.0