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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "LSBUtils.h"
#include <unistd.h>
#include "base/process_util.h"
namespace mozilla {
namespace widget {
namespace lsb {
static const char* gLsbReleasePath = "/usr/bin/lsb_release";
bool
GetLSBRelease(nsACString& aDistributor,
nsACString& aDescription,
nsACString& aRelease,
nsACString& aCodename)
{
if (access(gLsbReleasePath, R_OK) != 0)
return false;
int pipefd[2];
if (pipe(pipefd) == -1) {
NS_WARNING("pipe() failed!");
return false;
}
std::vector<std::string> argv = {
gLsbReleasePath, "-idrc"
};
std::vector<std::pair<int, int>> fdMap = {
{ pipefd[1], STDOUT_FILENO }
};
base::ProcessHandle process;
base::LaunchApp(argv, fdMap, true, &process);
close(pipefd[1]);
if (!process) {
NS_WARNING("Failed to spawn lsb_release!");
close(pipefd[0]);
return false;
}
FILE* stream = fdopen(pipefd[0], "r");
if (!stream) {
NS_WARNING("Could not wrap fd!");
close(pipefd[0]);
return false;
}
char dist[256], desc[256], release[256], codename[256];
if (fscanf(stream, "Distributor ID:\t%255[^\n]\n"
"Description:\t%255[^\n]\n"
"Release:\t%255[^\n]\n"
"Codename:\t%255[^\n]\n",
dist, desc, release, codename) != 4)
{
NS_WARNING("Failed to parse lsb_release!");
fclose(stream);
close(pipefd[0]);
return false;
}
fclose(stream);
close(pipefd[0]);
aDistributor.Assign(dist);
aDescription.Assign(desc);
aRelease.Assign(release);
aCodename.Assign(codename);
return true;
}
} // namespace lsb
} // namespace widget
} // namespace mozilla
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