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authorKay Sievers <kay@vrfy.org>2013-07-01 22:34:43 +0200
committerKay Sievers <kay@vrfy.org>2013-07-01 22:34:43 +0200
commit67410e9f73a6cdd8453c78b966451b5151def14a (patch)
tree1e232d31e4f386b8790bfd62fe4f2d64cbbd2782 /src/udev/udev-builtin-hwdb.c
parentd9b17672ebf335292228fb193a842f410560d7a5 (diff)
hwdb: add --device=<device-id> and --filter=<key name glob>
Diffstat (limited to 'src/udev/udev-builtin-hwdb.c')
-rw-r--r--src/udev/udev-builtin-hwdb.c40
1 files changed, 34 insertions, 6 deletions
diff --git a/src/udev/udev-builtin-hwdb.c b/src/udev/udev-builtin-hwdb.c
index 0b35d799fe..9895f651c5 100644
--- a/src/udev/udev-builtin-hwdb.c
+++ b/src/udev/udev-builtin-hwdb.c
@@ -23,13 +23,15 @@
#include <inttypes.h>
#include <ctype.h>
#include <stdlib.h>
+#include <fnmatch.h>
#include <getopt.h>
#include "udev.h"
static struct udev_hwdb *hwdb;
-int udev_builtin_hwdb_lookup(struct udev_device *dev, const char *modalias, bool test) {
+int udev_builtin_hwdb_lookup(struct udev_device *dev,
+ const char *modalias, const char *filter, bool test) {
struct udev_list_entry *entry;
int n = 0;
@@ -37,6 +39,9 @@ int udev_builtin_hwdb_lookup(struct udev_device *dev, const char *modalias, bool
return -ENOENT;
udev_list_entry_foreach(entry, udev_hwdb_get_properties_list_entry(hwdb, modalias, 0)) {
+ if (filter && fnmatch(filter, udev_list_entry_get_name(entry), FNM_NOESCAPE) != 0)
+ continue;
+
if (udev_builtin_add_property(dev, test,
udev_list_entry_get_name(entry),
udev_list_entry_get_value(entry)) < 0)
@@ -66,12 +71,13 @@ static const char *modalias_usb(struct udev_device *dev, char *s, size_t size) {
return s;
}
-static int udev_builtin_hwdb_search(struct udev_device *dev, const char *subsystem, bool test) {
+static int udev_builtin_hwdb_search(struct udev_device *dev, struct udev_device *srcdev,
+ const char *subsystem, const char *filter, bool test) {
struct udev_device *d;
char s[16];
int n = 0;
- for (d = dev; d; d = udev_device_get_parent(d)) {
+ for (d = srcdev; d; d = udev_device_get_parent(d)) {
const char *dsubsys;
const char *modalias = NULL;
@@ -85,14 +91,15 @@ static int udev_builtin_hwdb_search(struct udev_device *dev, const char *subsyst
/* the usb_device does not have a modalias, compose one */
if (streq(dsubsys, "usb"))
- modalias = modalias_usb(dev, s, sizeof(s));
+ modalias = modalias_usb(d, s, sizeof(s));
if (!modalias)
modalias = udev_device_get_property_value(d, "MODALIAS");
if (!modalias)
continue;
- n = udev_builtin_hwdb_lookup(dev, modalias, test);
+
+ n = udev_builtin_hwdb_lookup(dev, modalias, filter, test);
if (n > 0)
break;
}
@@ -102,10 +109,15 @@ static int udev_builtin_hwdb_search(struct udev_device *dev, const char *subsyst
static int builtin_hwdb(struct udev_device *dev, int argc, char *argv[], bool test) {
static const struct option options[] = {
+ { "filter", required_argument, NULL, 'f' },
+ { "device", required_argument, NULL, 'd' },
{ "subsystem", required_argument, NULL, 's' },
{}
};
+ const char *filter = NULL;
+ const char *device = NULL;
const char *subsystem = NULL;
+ struct udev_device *srcdev;
if (!hwdb)
return EXIT_FAILURE;
@@ -118,13 +130,29 @@ static int builtin_hwdb(struct udev_device *dev, int argc, char *argv[], bool te
break;
switch (option) {
+ case 'f':
+ filter = optarg;
+ break;
+
+ case 'd':
+ device = optarg;
+ break;
+
case 's':
subsystem = optarg;
break;
}
}
- if (udev_builtin_hwdb_search(dev, subsystem, test) < 0)
+ /* read data from another device than the device we will store the data */
+ if (device) {
+ srcdev = udev_device_new_from_device_id(udev_device_get_udev(dev), device);
+ if (!srcdev)
+ return EXIT_FAILURE;
+ } else
+ srcdev = dev;
+
+ if (udev_builtin_hwdb_search(dev, srcdev, subsystem, filter, test) < 0)
return EXIT_FAILURE;
return EXIT_SUCCESS;
}