X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/ff94be47f5dbdcf99cea23fad8c9b992a8e5a67e..b58e2c7c56b1416a343e81f9f80cb1f02c128e25:/test/libapt/fileutl_test.cc?ds=sidebyside diff --git a/test/libapt/fileutl_test.cc b/test/libapt/fileutl_test.cc index 643c02297..8cd5132ce 100644 --- a/test/libapt/fileutl_test.cc +++ b/test/libapt/fileutl_test.cc @@ -4,7 +4,9 @@ #include #include #include +#include +#include #include #include #include @@ -53,11 +55,16 @@ static void TestFileFd(mode_t const a_umask, mode_t const ExpectedFilePermission // ensure the memory is as predictably messed up #define APT_INIT_READBACK \ char readback[20]; \ - memset(readback, 'D', sizeof(readback)/sizeof(readback[0])); \ + memset(readback, 'D', sizeof(readback)*sizeof(readback[0])); \ readback[19] = '\0'; #define EXPECT_N_STR(expect, actual) \ EXPECT_EQ(0, strncmp(expect, actual, strlen(expect))); - + { + APT_INIT_READBACK + char const * const expect = "DDDDDDDDDDDDDDDDDDD"; + EXPECT_STREQ(expect,readback); + EXPECT_N_STR(expect, readback); + } { APT_INIT_READBACK char const * const expect = "This"; @@ -77,6 +84,18 @@ static void TestFileFd(mode_t const a_umask, mode_t const ExpectedFilePermission EXPECT_N_STR(expect, readback); EXPECT_EQ(test.size(), f.Tell()); } + // Non-zero backwards seek + { + APT_INIT_READBACK + char const * const expect = "is"; + EXPECT_EQ(test.size(), f.Tell()); + EXPECT_TRUE(f.Seek(5)); + EXPECT_TRUE(f.Read(readback, strlen(expect))); + EXPECT_FALSE(f.Failed()); + EXPECT_FALSE(f.Eof()); + EXPECT_N_STR(expect, readback); + EXPECT_EQ(7, f.Tell()); + } { APT_INIT_READBACK EXPECT_TRUE(f.Seek(0)); @@ -145,26 +164,34 @@ static void TestFileFd(mode_t const a_umask, mode_t const ExpectedFilePermission static void TestFileFd(unsigned int const filemode) { - std::vector compressors = APT::Configuration::getCompressors(); - - // testing the (un)compress via pipe, as the 'real' compressors are usually built in via libraries - compressors.push_back(APT::Configuration::Compressor("rev", ".reversed", "rev", NULL, NULL, 42)); - //compressors.push_back(APT::Configuration::Compressor("cat", ".ident", "cat", NULL, NULL, 42)); - - for (std::vector::const_iterator c = compressors.begin(); c != compressors.end(); ++c) + auto const compressors = APT::Configuration::getCompressors(); + EXPECT_EQ(7, compressors.size()); + bool atLeastOneWasTested = false; + for (auto const &c: compressors) { if ((filemode & FileFd::ReadWrite) == FileFd::ReadWrite && - (c->Name.empty() != true && c->Binary.empty() != true)) + (c.Name.empty() != true && c.Binary.empty() != true)) continue; - TestFileFd(0002, 0664, filemode, *c); - TestFileFd(0022, 0644, filemode, *c); - TestFileFd(0077, 0600, filemode, *c); - TestFileFd(0026, 0640, filemode, *c); + atLeastOneWasTested = true; + TestFileFd(0002, 0664, filemode, c); + TestFileFd(0022, 0644, filemode, c); + TestFileFd(0077, 0600, filemode, c); + TestFileFd(0026, 0640, filemode, c); } + EXPECT_TRUE(atLeastOneWasTested); } TEST(FileUtlTest, FileFD) { + // testing the (un)compress via pipe, as the 'real' compressors are usually built in via libraries + _config->Set("APT::Compressor::rev::Name", "rev"); + _config->Set("APT::Compressor::rev::Extension", ".reversed"); + _config->Set("APT::Compressor::rev::Binary", "rev"); + _config->Set("APT::Compressor::rev::Cost", 10); + auto const compressors = APT::Configuration::getCompressors(false); + EXPECT_EQ(7, compressors.size()); + EXPECT_TRUE(std::any_of(compressors.begin(), compressors.end(), [](APT::Configuration::Compressor const &c) { return c.Name == "rev"; })); + std::string const startdir = SafeGetCWD(); EXPECT_FALSE(startdir.empty()); std::string tempdir; @@ -217,10 +244,113 @@ TEST(FileUtlTest, GetTempDir) setenv("TMPDIR", "/not-there-no-really-not", 1); EXPECT_EQ("/tmp", GetTempDir()); - setenv("TMPDIR", "/usr", 1); - EXPECT_EQ("/usr", GetTempDir()); + // root can access everything, so /usr will be accepted + if (geteuid() != 0) + { + // here but not accessible for non-roots + setenv("TMPDIR", "/usr", 1); + EXPECT_EQ("/tmp", GetTempDir()); + } + + // files are no good for tmpdirs, too + setenv("TMPDIR", "/dev/null", 1); + EXPECT_EQ("/tmp", GetTempDir()); + + setenv("TMPDIR", "/var/tmp", 1); + EXPECT_EQ("/var/tmp", GetTempDir()); unsetenv("TMPDIR"); if (old_tmpdir.empty() == false) setenv("TMPDIR", old_tmpdir.c_str(), 1); } +TEST(FileUtlTest, Popen) +{ + FileFd Fd; + pid_t Child; + char buf[1024]; + std::string s; + unsigned long long n = 0; + std::vector OpenFds; + + // count Fds to ensure we don't have a resource leak + if(FileExists("/proc/self/fd")) + OpenFds = Glob("/proc/self/fd/*"); + + // output something + const char* Args[10] = {"/bin/echo", "meepmeep", NULL}; + EXPECT_TRUE(Popen(Args, Fd, Child, FileFd::ReadOnly)); + EXPECT_TRUE(Fd.Read(buf, sizeof(buf)-1, &n)); + buf[n] = 0; + EXPECT_NE(n, 0); + EXPECT_STREQ(buf, "meepmeep\n"); + + // wait for the child to exit and cleanup + EXPECT_TRUE(ExecWait(Child, "PopenRead")); + EXPECT_TRUE(Fd.Close()); + + // ensure that after a close all is good again + if(FileExists("/proc/self/fd")) + EXPECT_EQ(Glob("/proc/self/fd/*").size(), OpenFds.size()); + + // ReadWrite is not supported + _error->PushToStack(); + EXPECT_FALSE(Popen(Args, Fd, Child, FileFd::ReadWrite)); + EXPECT_FALSE(Fd.IsOpen()); + EXPECT_FALSE(Fd.Failed()); + EXPECT_TRUE(_error->PendingError()); + _error->RevertToStack(); + + // write something + Args[0] = "/bin/bash"; + Args[1] = "-c"; + Args[2] = "read"; + Args[3] = NULL; + EXPECT_TRUE(Popen(Args, Fd, Child, FileFd::WriteOnly)); + s = "\n"; + EXPECT_TRUE(Fd.Write(s.c_str(), s.length())); + EXPECT_TRUE(Fd.Close()); + EXPECT_FALSE(Fd.IsOpen()); + EXPECT_FALSE(Fd.Failed()); + EXPECT_TRUE(ExecWait(Child, "PopenWrite")); +} +TEST(FileUtlTest, flAbsPath) +{ + std::string cwd = SafeGetCWD(); + int res = chdir("/etc/"); + EXPECT_EQ(res, 0); + std::string p = flAbsPath("passwd"); + EXPECT_EQ(p, "/etc/passwd"); + + res = chdir(cwd.c_str()); + EXPECT_EQ(res, 0); +} + +static void TestDevNullFileFd(unsigned int const filemode) +{ + FileFd f("/dev/null", filemode); + EXPECT_FALSE(f.Failed()); + EXPECT_TRUE(f.IsOpen()); + EXPECT_TRUE(f.IsOpen()); + + std::string test = "This is a test!\n"; + EXPECT_TRUE(f.Write(test.c_str(), test.size())); + EXPECT_TRUE(f.IsOpen()); + EXPECT_FALSE(f.Failed()); + + f.Close(); + EXPECT_FALSE(f.IsOpen()); + EXPECT_FALSE(f.Failed()); +} +TEST(FileUtlTest, WorkingWithDevNull) +{ + TestDevNullFileFd(FileFd::WriteOnly | FileFd::Create); + TestDevNullFileFd(FileFd::WriteOnly | FileFd::Create | FileFd::Empty); + TestDevNullFileFd(FileFd::WriteOnly | FileFd::Create | FileFd::Exclusive); + TestDevNullFileFd(FileFd::WriteOnly | FileFd::Atomic); + TestDevNullFileFd(FileFd::WriteOnly | FileFd::Create | FileFd::Atomic); + // short-hands for ReadWrite with these modes + TestDevNullFileFd(FileFd::WriteEmpty); + TestDevNullFileFd(FileFd::WriteAny); + TestDevNullFileFd(FileFd::WriteTemp); + TestDevNullFileFd(FileFd::WriteAtomic); +}