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.
This commit is contained in:
Lennart Poettering
2013-11-06 03:15:16 +01:00
parent 1f0cd86b3d
commit 74df0fca09
15 changed files with 94 additions and 103 deletions
+11 -15
View File
@@ -32,7 +32,6 @@
#include "mount-setup.h"
#include "special.h"
#include "mkdir.h"
#include "virt.h"
#include "fileio.h"
static const char *arg_dest = "/tmp";
@@ -395,16 +394,16 @@ static int parse_fstab(const char *prefix, bool initrd) {
static int parse_new_root_from_proc_cmdline(void) {
_cleanup_free_ char *what = NULL, *type = NULL, *opts = NULL, *line = NULL;
char *w, *state;
int r;
size_t l;
bool noauto, nofail;
char *w, *state;
size_t l;
int r;
r = read_one_line_file("/proc/cmdline", &line);
if (r < 0) {
log_error("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
r = proc_cmdline(&line);
if (r < 0)
log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
if (r <= 0)
return 0;
}
opts = strdup("ro");
type = strdup("auto");
@@ -477,17 +476,14 @@ static int parse_new_root_from_proc_cmdline(void) {
static int parse_proc_cmdline(void) {
_cleanup_free_ char *line = NULL;
char *w, *state;
int r;
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) {
_cleanup_free_ char *word = NULL;