PKG_CHECK_MODULES(LIBUSB, libusb >= 0.1.12)
AC_SUBST(LIBUSB_CFLAGS)
AC_SUBST(LIBUSB_LIBS)
+
+ PKG_CHECK_MODULES(USBUTILS, usbutils >= 0.82)
+ AC_SUBST([USB_DATABASE], [$($PKG_CONFIG --variable=usbids usbutils)])
+
+ AC_CHECK_FILES([/usr/share/pci.ids], [pciids=/usr/share/pci.ids])
+ AC_CHECK_FILES([/usr/share/hwdata/pci.ids], [pciids=/usr/share/hwdata/pci.ids])
+ AC_CHECK_FILES([/usr/share/misc/pci.ids], [pciids=/usr/share/misc/pci.ids])
+ AC_ARG_WITH(pci-ids-path,
+ AS_HELP_STRING([--pci-ids-path=DIR], [Path to pci.ids file]),
+ [PCI_DATABASE=${withval}],
+ [if test -n "$pciids" ; then
+ PCI_DATABASE="$pciids"
+ else
+ AC_MSG_ERROR([pci.ids not found, try --with-pci-ids-path=])
+ fi])
+ AC_SUBST(PCI_DATABASE)
fi
AM_CONDITIONAL([ENABLE_EXTRAS], [test "x$enable_extras" = xyes])
extras/v4l_id/Makefile
extras/hid2hci/Makefile
extras/udev-acl/Makefile
+ extras/usb-db/Makefile
extras/gudev/Makefile
extras/gudev/gudev-1.0.pc
extras/gudev/docs/Makefile
extras: ${enable_extras}
gintrospection: ${enable_introspection}
+ usb.ids: ${USB_DATABASE}
+ pci.ids: ${PCI_DATABASE}
+
xsltproc: ${XSLTPROC}
])
--- /dev/null
+/*-*- linux-c -*-*/
+
+/*
+ * Copyright (C) 2009 Lennart Poettering <lennart@poettering.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details:
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <inttypes.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+#include <libudev.h>
+
+#if defined(BUILD_FOR_USB)
+# define DATABASE USB_DATABASE
+# define SUBSYSTEM "usb"
+# define DEVTYPE "usb_device"
+# define VENDOR_ATTR "idVendor"
+# define PRODUCT_ATTR "idProduct"
+#elif defined(BUILD_FOR_PCI)
+# define DATABASE PCI_DATABASE
+# define SUBSYSTEM "pci"
+# define DEVTYPE NULL
+# define VENDOR_ATTR "vendor"
+# define PRODUCT_ATTR "device"
+#else
+# error "Are you havin' a laugh?"
+#endif
+
+static int get_id_attr(
+ struct udev_device *parent,
+ const char *name,
+ uint16_t *value) {
+
+ const char *t;
+ unsigned u;
+
+ if (!(t = udev_device_get_sysattr_value(parent, name))) {
+ fprintf(stderr, "%s lacks %s.\n", udev_device_get_syspath(parent), name);
+ return -1;
+ }
+
+ if (!strncmp(t, "0x", 2))
+ t += 2;
+
+ if (sscanf(t, "%04x", &u) != 1 || u > 0xFFFFU) {
+ fprintf(stderr, "Failed to parse %s on %s.\n", name, udev_device_get_syspath(parent));
+ return -1;
+ }
+
+ *value = (uint16_t) u;
+ return 0;
+}
+
+static int get_vid_pid(
+ struct udev_device *parent,
+ uint16_t *vid,
+ uint16_t *pid) {
+
+ if (get_id_attr(parent, VENDOR_ATTR, vid) < 0)
+ return -1;
+ else if (*vid <= 0) {
+ fprintf(stderr, "Invalid vendor id.\n");
+ return -1;
+ }
+
+ if (get_id_attr(parent, PRODUCT_ATTR, pid) < 0)
+ return -1;
+
+ return 0;
+}
+
+static void rstrip(char *n) {
+ size_t i;
+
+ for (i = strlen(n); i > 0 && isspace(n[i-1]); i--)
+ n[i-1] = 0;
+}
+
+#define HEXCHARS "0123456789abcdefABCDEF"
+#define WHITESPACE " \t\n\r"
+
+static int lookup_vid_pid(
+ uint16_t vid,
+ uint16_t pid,
+ char **vendor,
+ char **product) {
+
+ FILE *f;
+ int ret = -1;
+ int found_vendor = 0;
+ char *line = NULL;
+
+ *vendor = *product = NULL;
+
+ if (!(f = fopen(DATABASE, "r"))) {
+ fprintf(stderr, "Failed to open database file "DATABASE": %s\n", strerror(errno));
+ return -1;
+ }
+
+ for (;;) {
+ size_t n;
+
+ if (line) {
+ free(line);
+ line = NULL;
+ }
+
+ if (getline(&line, &n, f) < 0)
+ break;
+
+ rstrip(line);
+
+ if (line[0] == '#' || line[0] == 0)
+ continue;
+
+ if (strspn(line, HEXCHARS) == 4) {
+ unsigned u;
+
+ if (found_vendor)
+ break;
+
+ if (sscanf(line, "%04x", &u) == 1 && u == vid) {
+ char *t;
+
+ t = line+4;
+ t += strspn(t, WHITESPACE);
+
+ if (!(*vendor = strdup(t))) {
+ fprintf(stderr, "Out of memory.\n");
+ goto finish;
+ }
+
+ found_vendor = 1;
+ }
+
+ continue;
+ }
+
+ if (found_vendor && line[0] == '\t' && strspn(line+1, HEXCHARS) == 4) {
+ unsigned u;
+
+ if (sscanf(line+1, "%04x", &u) == 1 && u == pid) {
+ char *t;
+
+ t = line+5;
+ t += strspn(t, WHITESPACE);
+
+ if (!(*product = strdup(t))) {
+ fprintf(stderr, "Out of memory.\n");
+ goto finish;
+ }
+
+ break;
+ }
+ }
+ }
+
+ ret = 0;
+
+finish:
+ free(line);
+ fclose(f);
+
+ if (ret < 0) {
+ free(*product);
+ free(*vendor);
+
+ *product = *vendor = NULL;
+ }
+
+ return ret;
+}
+
+static struct udev_device *find_device(struct udev_device *dev, const char *subsys, const char *devtype)
+{
+ const char *str;
+
+ str = udev_device_get_subsystem(dev);
+ if (str == NULL)
+ goto try_parent;
+ if (strcmp(str, subsys) != 0)
+ goto try_parent;
+
+ if (devtype != NULL) {
+ str = udev_device_get_devtype(dev);
+ if (str == NULL)
+ goto try_parent;
+ if (strcmp(str, devtype) != 0)
+ goto try_parent;
+ }
+ return dev;
+try_parent:
+ return udev_device_get_parent_with_subsystem_devtype(dev, SUBSYSTEM, DEVTYPE);
+}
+
+int main(int argc, char*argv[]) {
+
+ struct udev *udev = NULL;
+ int ret = 1;
+ char *sp;
+ struct udev_device *dev = NULL, *parent = NULL;
+ uint16_t vid = 0, pid = 0;
+ char *vendor = NULL, *product = NULL;
+
+ if (argc < 2) {
+ fprintf(stderr, "Need to pass sysfs path.\n");
+ goto finish;
+ }
+
+ if (!(udev = udev_new()))
+ goto finish;
+
+ if (asprintf(&sp, "%s/%s", udev_get_sys_path(udev), argv[1]) < 0) {
+ fprintf(stderr, "Failed to allocate sysfs path.\n");
+ goto finish;
+ }
+
+ dev = udev_device_new_from_syspath(udev, sp);
+ free(sp);
+
+ if (!dev) {
+ fprintf(stderr, "Failed to access %s.\n", argv[1]);
+ goto finish;
+ }
+
+ parent = find_device(dev, SUBSYSTEM, DEVTYPE);
+ if (!parent) {
+ fprintf(stderr, "Failed to find device.\n");
+ goto finish;
+ }
+
+ if (get_vid_pid(parent, &vid, &pid) < 0)
+ goto finish;
+
+ if (lookup_vid_pid(vid, pid, &vendor, &product) < 0)
+ goto finish;
+
+ if (vendor)
+ printf("ID_VENDOR_FROM_DATABASE=%s\n", vendor);
+
+ if (product)
+ printf("ID_MODEL_FROM_DATABASE=%s\n", product);
+
+ ret = 0;
+
+finish:
+ udev_device_unref(dev);
+ udev_unref(udev);
+ free(vendor);
+ free(product);
+
+ return ret;
+}
projects / systemd / commitdiff