+++ /dev/null
-/*
- * usb-db, pci-db - lookup vendor/product database
- *
- * Copyright (C) 2009 Lennart Poettering <lennart@poettering.net>
- * Copyright (C) 2011 Kay Sievers <kay.sievers@vrfy.org>
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <inttypes.h>
-#include <ctype.h>
-#include <stdlib.h>
-
-#include "udev.h"
-
-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,
- const char *vendor_attr,
- const char *product_attr,
- 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(const char *database,
- 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, "rme"))) {
- fprintf(stderr, "Failed to open database file '%s': %s\n", database, strerror(errno));
- return -1;
- }
-
- for (;;) {
- size_t n;
-
- 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, subsys, devtype);
-}
-
-
-static int builtin_db(struct udev_device *dev, bool test,
- const char *database,
- const char *vendor_attr, const char *product_attr,
- const char *subsys, const char *devtype)
-{
- struct udev_device *parent;
- uint16_t vid = 0, pid = 0;
- char *vendor = NULL, *product = NULL;
-
- parent = find_device(dev, subsys, devtype);
- if (!parent) {
- fprintf(stderr, "Failed to find device.\n");
- goto finish;
- }
-
- if (get_vid_pid(parent, vendor_attr, product_attr, &vid, &pid) < 0)
- goto finish;
-
- if (lookup_vid_pid(database, vid, pid, &vendor, &product) < 0)
- goto finish;
-
- if (vendor)
- udev_builtin_add_property(dev, test, "ID_VENDOR_FROM_DATABASE", vendor);
- if (product)
- udev_builtin_add_property(dev, test, "ID_MODEL_FROM_DATABASE", product);
-
-finish:
- free(vendor);
- free(product);
- return 0;
-}
-
-static int builtin_usb_db(struct udev_device *dev, int argc, char *argv[], bool test)
-{
- return builtin_db(dev, test, USB_DATABASE, "idVendor", "idProduct", "usb", "usb_device");
-}
-
-static int builtin_pci_db(struct udev_device *dev, int argc, char *argv[], bool test)
-{
- return builtin_db(dev, test, PCI_DATABASE, "vendor", "device", "pci", NULL);
-}
-
-const struct udev_builtin udev_builtin_usb_db = {
- .name = "usb-db",
- .cmd = builtin_usb_db,
- .help = "USB vendor/product database",
- .run_once = true,
-};
-
-const struct udev_builtin udev_builtin_pci_db = {
- .name = "pci-db",
- .cmd = builtin_pci_db,
- .help = "PCI vendor/product database",
- .run_once = true,
-};
~ianmdlvl / elogind.git / blobdiff