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authorLennart Poettering <lennart@poettering.net>2014-01-30 13:28:56 +0100
committerLennart Poettering <lennart@poettering.net>2014-01-30 13:28:56 +0100
commit1cea22a5e3f9f80c07ad015c985ec17310e0f78c (patch)
tree53128dffbe15ddb073abf399a5679a8b27b98f37 /src
parent084f83586e53384f76b5c71b73c9d7d6517923fe (diff)
update-utmp: code modernizations
Diffstat (limited to 'src')
-rw-r--r--src/update-utmp/update-utmp.c43
1 files changed, 22 insertions, 21 deletions
diff --git a/src/update-utmp/update-utmp.c b/src/update-utmp/update-utmp.c
index a62c538ecd..ecba4c8fe4 100644
--- a/src/update-utmp/update-utmp.c
+++ b/src/update-utmp/update-utmp.c
@@ -157,7 +157,8 @@ static int on_reboot(Context *c) {
* utmp_put_reboot() will then fix to the current time */
t = get_startup_time(c);
- if ((q = utmp_put_reboot(t)) < 0) {
+ q = utmp_put_reboot(t);
+ if (q < 0) {
log_error("Failed to write utmp record: %s", strerror(-q));
r = q;
}
@@ -182,7 +183,8 @@ static int on_shutdown(Context *c) {
}
#endif
- if ((q = utmp_put_shutdown()) < 0) {
+ q = utmp_put_shutdown();
+ if (q < 0) {
log_error("Failed to write utmp record: %s", strerror(-q));
r = q;
}
@@ -199,7 +201,8 @@ static int on_runlevel(Context *c) {
* utmp record and send the audit msg */
/* First, get last runlevel */
- if ((q = utmp_get_runlevel(&previous, NULL)) < 0) {
+ q = utmp_get_runlevel(&previous, NULL);
+ if (q < 0) {
if (q != -ESRCH && q != -ENOENT) {
log_error("Failed to get current runlevel: %s", strerror(-q));
@@ -213,7 +216,8 @@ static int on_runlevel(Context *c) {
}
/* Secondly, get new runlevel */
- if ((runlevel = get_current_runlevel(c)) < 0)
+ runlevel = get_current_runlevel(c);
+ if (runlevel < 0)
return runlevel;
if (previous == runlevel)
@@ -221,40 +225,37 @@ static int on_runlevel(Context *c) {
#ifdef HAVE_AUDIT
if (c->audit_fd >= 0) {
- char *s = NULL;
+ _cleanup_free_ char *s = NULL;
if (asprintf(&s, "old-level=%c new-level=%c",
previous > 0 ? previous : 'N',
runlevel > 0 ? runlevel : 'N') < 0)
- return -ENOMEM;
+ return log_oom();
if (audit_log_user_message(c->audit_fd, AUDIT_SYSTEM_RUNLEVEL, s, NULL, NULL, NULL, 1) < 0 &&
errno != EPERM) {
log_error("Failed to send audit message: %m");
r = -errno;
}
-
- free(s);
}
#endif
- if ((q = utmp_put_runlevel(runlevel, previous)) < 0) {
- if (q != -ESRCH && q != -ENOENT) {
- log_error("Failed to write utmp record: %s", strerror(-q));
- r = q;
- }
+ q = utmp_put_runlevel(runlevel, previous);
+ if (q < 0 && q != -ESRCH && q != -ENOENT) {
+ log_error("Failed to write utmp record: %s", strerror(-q));
+ r = q;
}
return r;
}
int main(int argc, char *argv[]) {
- int r;
- Context c = {};
-
+ Context c = {
#ifdef HAVE_AUDIT
- c.audit_fd = -1;
+ .audit_fd = -1
#endif
+ };
+ int r;
if (getppid() != 1) {
log_error("This program should be invoked by init only.");
@@ -273,10 +274,10 @@ int main(int argc, char *argv[]) {
umask(0022);
#ifdef HAVE_AUDIT
- if ((c.audit_fd = audit_open()) < 0 &&
- /* If the kernel lacks netlink or audit support,
- * don't worry about it. */
- errno != EAFNOSUPPORT && errno != EPROTONOSUPPORT)
+ /* If the kernel lacks netlink or audit support,
+ * don't worry about it. */
+ c.audit_fd = audit_open();
+ if (c.audit_fd < 0 && errno != EAFNOSUPPORT && errno != EPROTONOSUPPORT)
log_error("Failed to connect to audit log: %m");
#endif
r = bus_open_system_systemd(&c.bus);