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journald: fix forwarding to syslog

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.msg_namelen was set to a bogus value before we actually stored the path in the
the structure. sockaddr_un_set_path() returns the length, so just use that.

Fixes #14799.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2020-03-02 14:44:31 +01:00
parent 8ad2012d1e
commit 64177e9e4e
1 changed files with 5 additions and 5 deletions
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10
src/journal/journald-syslog.c
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@ -32,14 +32,11 @@ static void forward_syslog_iovec(
const struct ucred *ucred,
const struct timeval *tv) {
union sockaddr_union sa = {
.un.sun_family = AF_UNIX,
};
union sockaddr_union sa;
struct msghdr msghdr = {
.msg_iov = (struct iovec *) iovec,
.msg_iovlen = n_iovec,
.msg_name = (struct sockaddr*) &sa.sa,
.msg_namelen = SOCKADDR_UN_LEN(sa.un),
};
struct cmsghdr *cmsg;
union {
@ -60,6 +57,9 @@ static void forward_syslog_iovec(
return;
}
msghdr.msg_name = &sa.sa;
msghdr.msg_namelen = r;
if (ucred) {
zero(control);
msghdr.msg_control = &control;