chiark / gitweb /
[PATCH] overall whitespace + debug text conditioning
[elogind.git] / udev-add.c
index 9c546024055208d646db49ec0e9cdc18a51b43a8..a71d435e327db824616935020e878faed987336f 100644 (file)
 #include <unistd.h>
 #include <errno.h>
 #include <sys/stat.h>
+#include <sys/types.h>
+#include <grp.h>
+#ifndef __KLIBC__
+#include <pwd.h>
+#endif
 
 #include "udev.h"
 #include "udev_version.h"
 #include "namedev.h"
 #include "udevdb.h"
 #include "libsysfs/libsysfs.h"
+#include "klibc_fixups.h"
 
 /* 
  * Right now the major/minor of a device is stored in a file called
@@ -44,7 +50,7 @@
  *             mm is the minor
  *             The value is in decimal.
  */
-static int get_major_minor(struct sysfs_class_device *class_dev, int *major, int *minor)
+static int get_major_minor(struct sysfs_class_device *class_dev, struct udevice *udev)
 {
        int retval = -ENODEV;
 
@@ -54,12 +60,12 @@ static int get_major_minor(struct sysfs_class_device *class_dev, int *major, int
        if (dev == NULL)
                goto exit;
 
-       dbg("dev = %s", dev);
+       dbg("dev='%s'", dev);
 
-       if (sscanf(dev, "%u:%u", major, minor) != 2)
+       if (sscanf(dev, "%u:%u", &udev->major, &udev->minor) != 2)
                goto exit;
 
-       dbg("found major = %d, minor = %d", *major, *minor);
+       dbg("found major=%d, minor=%d", udev->major, udev->minor);
 
        retval = 0;
 exit:
@@ -74,6 +80,8 @@ static int create_node(struct udevice *dev)
 {
        char filename[255];
        int retval = 0;
+       uid_t uid = 0;
+       gid_t gid = 0;
        dev_t res;
 
        strncpy(filename, udev_root, sizeof(filename));
@@ -121,7 +129,7 @@ static int create_node(struct udevice *dev)
                                            path, strerror(errno));
                                        return retval;
                                }
-                               dbg("created %s", path);
+                               dbg("created '%s'", path);
                        }
                        *pos = '/';
                }
@@ -133,16 +141,24 @@ static int create_node(struct udevice *dev)
                dbg("mknod(%s, %#o, %u, %u) failed with error '%s'",
                    filename, dev->mode, dev->major, dev->minor, strerror(errno));
 
-       uid_t uid = 0;
-       gid_t gid = 0;
+       dbg("chmod(%s, %#o)", filename, dev->mode);
+       retval = chmod(filename, dev->mode);
+       if (retval)
+               dbg("chmod(%s, %#o) failed with error '%s'",
+                   filename, dev->mode, strerror(errno));
 
        if (*dev->owner) {
                char *endptr;
                unsigned long id = strtoul(dev->owner, &endptr, 10);
                if (*endptr == 0x00)
                        uid = (uid_t) id;
-               else
-                       dbg("only numeric owner id supported: %s", dev->owner);
+               else {
+                       struct passwd *pw = getpwnam(dev->owner);
+                       if (!pw)
+                               dbg("user unknown '%s'", dev->owner);
+                       else
+                               uid = pw->pw_uid;
+               }
        }
 
        if (*dev->group) {
@@ -150,8 +166,13 @@ static int create_node(struct udevice *dev)
                unsigned long id = strtoul(dev->group, &endptr, 10);
                if (*endptr == 0x00)
                        gid = (gid_t) id;
-               else
-                       dbg("only numeric group id supported: %s", dev->group);
+               else {
+                       struct group *gr = getgrnam(dev->group);
+                       if (!gr)
+                               dbg("group unknown '%s'", dev->group);
+                       else
+                               gid = gr->gr_gid;
+               }
        }
 
        if (uid || gid) {
@@ -173,7 +194,7 @@ static struct sysfs_class_device *get_class_dev(char *device_name)
        strcpy(dev_path, sysfs_path);
        strcat(dev_path, device_name);
 
-       dbg("looking at %s", dev_path);
+       dbg("looking at '%s'", dev_path);
 
        /* open up the sysfs class device for this thing... */
        class_dev = sysfs_open_class_device(dev_path);
@@ -181,7 +202,7 @@ static struct sysfs_class_device *get_class_dev(char *device_name)
                dbg ("sysfs_open_class_device failed");
                goto exit;
        }
-       dbg("class_dev->name = %s", class_dev->name);
+       dbg("class_dev->name='%s'", class_dev->name);
 
 exit:
        return class_dev;
@@ -204,13 +225,12 @@ static int sleep_for_dev(char *path)
        while (loop--) {
                struct stat buf;
 
-               dbg("looking for %s", filename);
+               dbg("looking for '%s'", filename);
                retval = stat(filename, &buf);
                if (!retval)
                        goto exit;
 
-               /* sleep for a second or two to give the kernel a chance to
-                * create the dev file */
+               /* sleep to give the kernel a chance to create the dev file */
                sleep(1);
        }
        retval = -ENODEV;
@@ -220,10 +240,12 @@ exit:
 
 int udev_add_device(char *path, char *subsystem)
 {
-       struct sysfs_class_device *class_dev;
+       struct sysfs_class_device *class_dev = NULL;
        struct udevice dev;
        int retval = -EINVAL;
 
+       memset(&dev, 0x00, sizeof(dev));
+
        /* for now, the block layer is the only place where block devices are */
        if (strcmp(subsystem, "block") == 0)
                dev.type = 'b';
@@ -238,32 +260,27 @@ int udev_add_device(char *path, char *subsystem)
        if (class_dev == NULL)
                goto exit;
 
-       retval = namedev_name_device(class_dev, &dev);
-       if (retval)
-               return retval;
-
-       retval = get_major_minor(class_dev, &dev.major, &dev.minor);
+       retval = get_major_minor(class_dev, &dev);
        if (retval) {
                dbg("get_major_minor failed");
                goto exit;
        }
 
-//     strcpy(dev.name, attr.name);
-//     strcpy(dev.owner, attr.owner);
-//     strcpy(dev.group, attr.group);
-//     dev.mode = attr.mode;
-       
+       retval = namedev_name_device(class_dev, &dev);
+       if (retval)
+               goto exit;
+
        retval = udevdb_add_dev(path, &dev);
        if (retval != 0)
                dbg("udevdb_add_dev failed, but we are going to try to create the node anyway. "
                    "But remove might not work properly for this device.");
 
-       sysfs_close_class_device(class_dev);
-
-       dbg("name = %s", dev.name);
+       dbg("name='%s'", dev.name);
        retval = create_node(&dev);
 
 exit:
+       if (class_dev)
+               sysfs_close_class_device(class_dev);
+
        return retval;
 }
-