libx52/libusbx52/util/create_device_list.c

45 lines
1.1 KiB
C

/*
* LibUSB test utility library
*
* This program generates a list of USB devices for use by libusbx52.so
*
* Copyright (C) Nirenjan Krishnan (nirenjan@nirenjan.org)
*
* SPDX-License-Identifier: GPL-2.0-only WITH Classpath-exception-2.0
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "libusbx52.h"
int main(int argc, char *argv[])
{
FILE *data;
unsigned int vid;
unsigned int pid;
int i;
data = fopen_env(INPUT_DEVICE_LIST_ENV, DEFAULT_INPUT_DEVICE_LIST_FILE, "w");
if (data == NULL) {
fprintf(stderr, "Unable to open device list file for writing\n");
fprintf(stderr, "%s\n", strerror(errno));
}
/* Process arguments until there are fewer than 2 remaining */
for (i = 1; i < argc && (argc - i) >= 2; i += 2) {
int parsed;
parsed = sscanf(argv[i], "%x", &vid);
if (parsed != 1) break;
parsed = sscanf(argv[i+1], "%x", &pid);
if (parsed != 1) break;
fprintf(data, "%04x %04x\n", vid, pid);
}
fclose(data);
return 0;
}