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49 lines
2.1 KiB
49 lines
2.1 KiB
From 529c94b47f886f99796cff0f5827d6c2ebdcea19 Mon Sep 17 00:00:00 2001 |
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From: Lennart Poettering <lennart@poettering.net> |
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Date: Mon, 2 Mar 2015 20:55:38 +0100 |
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Subject: [PATCH] sd-daemon: replace VLA with alloca(), to make llvm happy |
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https://bugs.freedesktop.org/show_bug.cgi?id=89379 |
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(cherry picked from commit d4a144fadf89bca681724c6c9a65b4a165fa0f90) |
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--- |
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src/libsystemd/sd-daemon/sd-daemon.c | 12 +++++------- |
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1 file changed, 5 insertions(+), 7 deletions(-) |
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diff --git a/src/libsystemd/sd-daemon/sd-daemon.c b/src/libsystemd/sd-daemon/sd-daemon.c |
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index 028c2a7a5b..22a3a5347a 100644 |
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--- a/src/libsystemd/sd-daemon/sd-daemon.c |
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+++ b/src/libsystemd/sd-daemon/sd-daemon.c |
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@@ -352,11 +352,7 @@ _public_ int sd_pid_notify_with_fds(pid_t pid, int unset_environment, const char |
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.msg_iovlen = 1, |
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.msg_name = &sockaddr, |
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}; |
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- union { |
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- struct cmsghdr cmsghdr; |
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- uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + |
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- CMSG_SPACE(sizeof(int) * n_fds)]; |
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- } control; |
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+ struct cmsghdr *control; |
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_cleanup_close_ int fd = -1; |
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struct cmsghdr *cmsg = NULL; |
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const char *e; |
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@@ -400,8 +396,10 @@ _public_ int sd_pid_notify_with_fds(pid_t pid, int unset_environment, const char |
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if (msghdr.msg_namelen > sizeof(struct sockaddr_un)) |
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msghdr.msg_namelen = sizeof(struct sockaddr_un); |
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+ control = alloca(CMSG_SPACE(sizeof(struct ucred)) + CMSG_SPACE(sizeof(int) * n_fds)); |
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+ |
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if (n_fds > 0) { |
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- msghdr.msg_control = &control; |
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+ msghdr.msg_control = control; |
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msghdr.msg_controllen = CMSG_LEN(sizeof(int) * n_fds); |
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cmsg = CMSG_FIRSTHDR(&msghdr); |
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@@ -418,7 +416,7 @@ _public_ int sd_pid_notify_with_fds(pid_t pid, int unset_environment, const char |
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try_without_ucred = true; |
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controllen_without_ucred = msghdr.msg_controllen; |
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- msghdr.msg_control = &control; |
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+ msghdr.msg_control = control; |
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msghdr.msg_controllen += CMSG_LEN(sizeof(struct ucred)); |
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if (cmsg)
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