#include <grp.h>
#ifndef __KLIBC__
#include <pwd.h>
+#include <utmp.h>
#endif
#include "libsysfs/sysfs/libsysfs.h"
#include "udevdb.h"
#include "klibc_fixups.h"
+#define LOCAL_USER "$local"
+
/*
* Right now the major/minor of a device is stored in a file called
* "dev" in sysfs.
return 0;
}
-static int create_node(struct udevice *dev, int fake)
+/* get the local logged in user */
+static void set_to_local_user(char *user)
+{
+ struct utmp *u;
+ time_t recent = 0;
+
+ strnfieldcpy(user, default_owner_str, OWNER_SIZE);
+ setutent();
+ while (1) {
+ u = getutent();
+ if (u == NULL)
+ break;
+
+ /* is this a user login ? */
+ if (u->ut_type != USER_PROCESS)
+ continue;
+
+ /* is this a local login ? */
+ if (strcmp(u->ut_host, ""))
+ continue;
+
+ if (u->ut_time > recent) {
+ recent = u->ut_time;
+ strfieldcpy(user, u->ut_user);
+ dbg("local user is '%s'", user);
+ break;
+ }
+ }
+ endutent();
+}
+
+/* Used to unlink existing files to ensure that our new file/symlink is created */
+static int unlink_entry(char *filename)
{
struct stat stats;
+ int retval = 0;
+
+ if (lstat(filename, &stats) == 0) {
+ if ((stats.st_mode & S_IFMT) != S_IFDIR) {
+ retval = unlink(filename);
+ if (retval) {
+ dbg("unlink(%s) failed with error '%s', "
+ filename, strerror(errno));
+ }
+ }
+ }
+ return retval;
+}
+
+static int create_node(struct udevice *dev, int fake)
+{
char filename[255];
char linktarget[255];
char partitionname[255];
if (endptr[0] == '\0')
uid = (uid_t) id;
else {
+ if (strncmp(dev->owner, LOCAL_USER, sizeof(LOCAL_USER)) == 0)
+ set_to_local_user(dev->owner);
+
struct passwd *pw = getpwnam(dev->owner);
if (pw == NULL)
dbg("specified user unknown '%s'", dev->owner);
}
if (!fake) {
+ unlink_entry(filename);
info("creating device node '%s'", filename);
make_node(filename, dev->major, dev->minor, dev->mode, uid, gid);
} else {
info("creating device partition nodes '%s[1-%i]'", filename, dev->partitions);
if (!fake) {
for (i = 1; i <= dev->partitions; i++) {
- sprintf(partitionname, "%s%i", filename, i);
+ strfieldcpy(partitionname, filename);
+ strintcat(partitionname, i);
+ unlink_entry(partitionname);
make_node(partitionname, dev->major,
dev->minor + i, dev->mode, uid, gid);
}
strfieldcat(linktarget, &dev->name[tail]);
- /* unlink existing files to ensure that our symlink is created */
- if (!fake && (lstat(filename, &stats) == 0)) {
- if ((stats.st_mode & S_IFMT) != S_IFDIR) {
- if (unlink(filename))
- dbg("unlink(%s) failed with error '%s'",
- filename, strerror(errno));
- }
- }
+ if (!fake)
+ unlink_entry(filename);
dbg("symlink(%s, %s)", linktarget, filename);
if (!fake) {