1 #include "software_utils.hpp"
2
3 #include <phosphor-logging/lg2.hpp>
4
5 PHOSPHOR_LOG2_USING;
6
7 namespace phosphor::software::utils
8 {
9
writeToFile(int imageFd,FILE * outStream)10 static bool writeToFile(int imageFd, FILE* outStream)
11 {
12 const int bSize = 100;
13 ssize_t nRead = 0;
14 unsigned char buf[bSize];
15
16 while ((nRead = read(imageFd, buf, bSize)) > 0)
17 {
18 if (fwrite(buf, 1, nRead, outStream) != (size_t)nRead)
19 {
20 error("Failed to write to file");
21 return false;
22 }
23 }
24 if (nRead < 0)
25 {
26 error("Failed to read from input file");
27 return false;
28 }
29 return true;
30 }
31
unTar(int imageFd,const std::string & extractDirPath)32 bool unTar(int imageFd, const std::string& extractDirPath)
33 {
34 std::string tarCmd = "tar -xf - -C " + extractDirPath + " --no-same-owner";
35 info("Executing command: {CMD}", "CMD", tarCmd);
36 FILE* outStream = popen(tarCmd.c_str(), "w");
37 if (outStream == nullptr)
38 {
39 error("Failed to open pipe to execute command: {CMD}", "CMD", tarCmd);
40 return false;
41 }
42
43 if (!writeToFile(imageFd, outStream))
44 {
45 error("Failed to write to file");
46 pclose(outStream);
47 return false;
48 }
49
50 if (pclose(outStream) != 0)
51 {
52 error("Failed to close pipe");
53 return false;
54 }
55 return true;
56 }
57
58 } // namespace phosphor::software::utils
59
getIOContext()60 boost::asio::io_context& getIOContext()
61 {
62 static boost::asio::io_context io;
63 return io;
64 }
65