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Diffstat (limited to 'src/log.c')
-rw-r--r--src/log.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/log.c b/src/log.c
index d0d98ddf75..729b9ea4f6 100644
--- a/src/log.c
+++ b/src/log.c
@@ -249,6 +249,11 @@ static int write_to_syslog(
char header_priority[16], header_time[64], header_pid[16];
struct iovec iovec[5];
struct msghdr msghdr;
+ union {
+ struct cmsghdr cmsghdr;
+ uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
+ } control;
+ struct ucred *ucred;
time_t t;
struct tm *tm;
@@ -275,9 +280,21 @@ static int write_to_syslog(
IOVEC_SET_STRING(iovec[3], header_pid);
IOVEC_SET_STRING(iovec[4], buffer);
+ zero(control);
+ control.cmsghdr.cmsg_level = SOL_SOCKET;
+ control.cmsghdr.cmsg_type = SCM_CREDENTIALS;
+ control.cmsghdr.cmsg_len = CMSG_LEN(sizeof(struct ucred));
+
+ ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
+ ucred->pid = getpid();
+ ucred->uid = getuid();
+ ucred->gid = getgid();
+
zero(msghdr);
msghdr.msg_iov = iovec;
msghdr.msg_iovlen = ELEMENTSOF(iovec);
+ msghdr.msg_control = &control;
+ msghdr.msg_controllen = control.cmsghdr.cmsg_len;
if (sendmsg(syslog_fd, &msghdr, MSG_NOSIGNAL) < 0)
return -errno;