1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2022 Garmin Ltd. or its subsidiaries
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Attempts to find and exec the host qemu-bridge-helper program
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <stdio.h>
10*4882a593Smuzhiyun #include <unistd.h>
11*4882a593Smuzhiyun #include <stdlib.h>
12*4882a593Smuzhiyun
try_program(char const * path,char ** args)13*4882a593Smuzhiyun void try_program(char const* path, char** args) {
14*4882a593Smuzhiyun if (access(path, X_OK) == 0) {
15*4882a593Smuzhiyun execv(path, args);
16*4882a593Smuzhiyun }
17*4882a593Smuzhiyun }
18*4882a593Smuzhiyun
main(int argc,char ** argv)19*4882a593Smuzhiyun int main(int argc, char** argv) {
20*4882a593Smuzhiyun char* var;
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun var = getenv("QEMU_BRIDGE_HELPER");
23*4882a593Smuzhiyun if (var && var[0] != '\0') {
24*4882a593Smuzhiyun execvp(var, argv);
25*4882a593Smuzhiyun return 1;
26*4882a593Smuzhiyun }
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun try_program("/usr/libexec/qemu-bridge-helper", argv);
29*4882a593Smuzhiyun try_program("/usr/lib/qemu/qemu-bridge-helper", argv);
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun fprintf(stderr, "No bridge helper found\n");
32*4882a593Smuzhiyun return 1;
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun
35