util: unify reading of /proc/cmdline

Instead of individually checking for containers in each user do this
once in a new call proc_cmdline() that read the file only if we are not
in a container.

1 files changed, 3 insertions, 7 deletions

diff --git a/src/quotacheck/quotacheck.c b/src/quotacheck/quotacheck.c
index 1f63785041..622952a6e9 100644
--- a/src/quotacheck/quotacheck.c
+++ b/src/quotacheck/quotacheck.c
@@ -26,7 +26,6 @@
 #include <unistd.h>
 
 #include "util.h"
-#include "virt.h"
 #include "fileio.h"
 
 static bool arg_skip = false;
@@ -38,14 +37,11 @@ static int parse_proc_cmdline(void) {
         size_t l;
         int r;
 
-        if (detect_container(NULL) > 0)
-                return 0;
-
-        r = read_one_line_file("/proc/cmdline", &line);
-        if (r < 0) {
+        r = proc_cmdline(&line);
+        if (r < 0)
                 log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
+        if (r <= 0)
                 return 0;
-        }
 
         FOREACH_WORD_QUOTED(w, l, line, state) {