https://github.com/Kitware/CMake
Tip revision: 74c99d11bc62048a069bd6c89b48cf4f94884210 authored by Brad King on 26 June 2015, 12:44:27 UTC
CMake 3.3.0-rc3
CMake 3.3.0-rc3
Tip revision: 74c99d1
cmSystemTools.cxx
/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#include "cmSystemTools.h"
#include "cmAlgorithms.h"
#include <ctype.h>
#include <errno.h>
#include <time.h>
#include <string.h>
#include <stdlib.h>
#ifdef __QNX__
# include <malloc.h> /* for malloc/free on QNX */
#endif
#include <cmsys/Glob.hxx>
#include <cmsys/RegularExpression.hxx>
#include <cmsys/Directory.hxx>
#include <cmsys/System.h>
#include <cmsys/Encoding.hxx>
#if defined(CMAKE_BUILD_WITH_CMAKE)
# include "cmArchiveWrite.h"
# include "cmLocale.h"
# include <cm_libarchive.h>
#endif
#include <cmsys/stl/algorithm>
#include <cmsys/FStream.hxx>
#include <cmsys/Terminal.h>
#if defined(_WIN32)
# include <windows.h>
# include <wincrypt.h>
#else
# include <sys/time.h>
# include <sys/types.h>
# include <unistd.h>
# include <utime.h>
# include <sys/wait.h>
#endif
#if defined(__APPLE__)
# include <mach-o/dyld.h>
#endif
#include <sys/stat.h>
#if defined(_WIN32) && \
(defined(_MSC_VER) || defined(__WATCOMC__) || defined(__MINGW32__))
# include <io.h>
#endif
#if defined(CMAKE_BUILD_WITH_CMAKE)
# include <fcntl.h>
# include "cmCryptoHash.h"
#endif
#if defined(CMAKE_USE_ELF_PARSER)
# include "cmELF.h"
#endif
#if defined(CMAKE_USE_MACH_PARSER)
# include "cmMachO.h"
#endif
class cmSystemToolsFileTime
{
public:
#if defined(_WIN32) && !defined(__CYGWIN__)
FILETIME timeCreation;
FILETIME timeLastAccess;
FILETIME timeLastWrite;
#else
struct utimbuf timeBuf;
#endif
};
#if !defined(HAVE_ENVIRON_NOT_REQUIRE_PROTOTYPE)
// For GetEnvironmentVariables
# if defined(_WIN32)
extern __declspec( dllimport ) char** environ;
# else
extern char** environ;
# endif
#endif
#if defined(CMAKE_BUILD_WITH_CMAKE)
static std::string
cm_archive_entry_pathname(struct archive_entry *entry)
{
#if cmsys_STL_HAS_WSTRING
return cmsys::Encoding::ToNarrow(
archive_entry_pathname_w(entry));
#else
return archive_entry_pathname(entry);
#endif
}
static int cm_archive_read_open_file(struct archive* a,
const char* file,
int block_size)
{
#if cmsys_STL_HAS_WSTRING
std::wstring wfile = cmsys::Encoding::ToWide(file);
return archive_read_open_filename_w(a, wfile.c_str(), block_size);
#else
return archive_read_open_filename(a, file, block_size);
#endif
}
#endif
#ifdef _WIN32
class cmSystemToolsWindowsHandle
{
public:
cmSystemToolsWindowsHandle(HANDLE h): handle_(h) {}
~cmSystemToolsWindowsHandle()
{
if(this->handle_ != INVALID_HANDLE_VALUE)
{
CloseHandle(this->handle_);
}
}
operator bool() const { return this->handle_ != INVALID_HANDLE_VALUE; }
bool operator !() const { return this->handle_ == INVALID_HANDLE_VALUE; }
operator HANDLE() const { return this->handle_; }
private:
HANDLE handle_;
};
#elif defined(__APPLE__)
#include <crt_externs.h>
#define environ (*_NSGetEnviron())
#endif
bool cmSystemTools::s_RunCommandHideConsole = false;
bool cmSystemTools::s_DisableRunCommandOutput = false;
bool cmSystemTools::s_ErrorOccured = false;
bool cmSystemTools::s_FatalErrorOccured = false;
bool cmSystemTools::s_DisableMessages = false;
bool cmSystemTools::s_ForceUnixPaths = false;
cmSystemTools::MessageCallback cmSystemTools::s_MessageCallback;
cmSystemTools::OutputCallback cmSystemTools::s_StdoutCallback;
cmSystemTools::OutputCallback cmSystemTools::s_StderrCallback;
cmSystemTools::InterruptCallback cmSystemTools::s_InterruptCallback;
void* cmSystemTools::s_MessageCallbackClientData;
void* cmSystemTools::s_StdoutCallbackClientData;
void* cmSystemTools::s_StderrCallbackClientData;
void* cmSystemTools::s_InterruptCallbackClientData;
// replace replace with with as many times as it shows up in source.
// write the result into source.
#if defined(_WIN32) && !defined(__CYGWIN__)
void cmSystemTools::ExpandRegistryValues(std::string& source, KeyWOW64 view)
{
// Regular expression to match anything inside [...] that begins in HKEY.
// Note that there is a special rule for regular expressions to match a
// close square-bracket inside a list delimited by square brackets.
// The "[^]]" part of this expression will match any character except
// a close square-bracket. The ']' character must be the first in the
// list of characters inside the [^...] block of the expression.
cmsys::RegularExpression regEntry("\\[(HKEY[^]]*)\\]");
// check for black line or comment
while (regEntry.find(source))
{
// the arguments are the second match
std::string key = regEntry.match(1);
std::string val;
if (ReadRegistryValue(key.c_str(), val, view))
{
std::string reg = "[";
reg += key + "]";
cmSystemTools::ReplaceString(source, reg.c_str(), val.c_str());
}
else
{
std::string reg = "[";
reg += key + "]";
cmSystemTools::ReplaceString(source, reg.c_str(), "/registry");
}
}
}
#else
void cmSystemTools::ExpandRegistryValues(std::string& source, KeyWOW64)
{
cmsys::RegularExpression regEntry("\\[(HKEY[^]]*)\\]");
while (regEntry.find(source))
{
// the arguments are the second match
std::string key = regEntry.match(1);
std::string val;
std::string reg = "[";
reg += key + "]";
cmSystemTools::ReplaceString(source, reg.c_str(), "/registry");
}
}
#endif
std::string cmSystemTools::EscapeQuotes(const std::string& str)
{
std::string result;
result.reserve(str.size());
for(const char* ch = str.c_str(); *ch != '\0'; ++ch)
{
if(*ch == '"')
{
result += '\\';
}
result += *ch;
}
return result;
}
std::string cmSystemTools::HelpFileName(std::string name)
{
cmSystemTools::ReplaceString(name, "<", "");
cmSystemTools::ReplaceString(name, ">", "");
return name;
}
std::string cmSystemTools::TrimWhitespace(const std::string& s)
{
std::string::const_iterator start = s.begin();
while(start != s.end() && *start <= ' ')
++start;
if (start == s.end())
return "";
std::string::const_iterator stop = s.end()-1;
while(*stop <= ' ')
--stop;
return std::string(start, stop+1);
}
void cmSystemTools::Error(const char* m1, const char* m2,
const char* m3, const char* m4)
{
std::string message = "CMake Error: ";
if(m1)
{
message += m1;
}
if(m2)
{
message += m2;
}
if(m3)
{
message += m3;
}
if(m4)
{
message += m4;
}
cmSystemTools::s_ErrorOccured = true;
cmSystemTools::Message(message.c_str(),"Error");
}
void cmSystemTools::SetInterruptCallback(InterruptCallback f, void* clientData)
{
s_InterruptCallback = f;
s_InterruptCallbackClientData = clientData;
}
bool cmSystemTools::GetInterruptFlag()
{
if(s_InterruptCallback)
{
return (*s_InterruptCallback)(s_InterruptCallbackClientData);
}
return false;
}
void cmSystemTools::SetMessageCallback(MessageCallback f, void* clientData)
{
s_MessageCallback = f;
s_MessageCallbackClientData = clientData;
}
void cmSystemTools::SetStdoutCallback(OutputCallback f, void* clientData)
{
s_StdoutCallback = f;
s_StdoutCallbackClientData = clientData;
}
void cmSystemTools::SetStderrCallback(OutputCallback f, void* clientData)
{
s_StderrCallback = f;
s_StderrCallbackClientData = clientData;
}
void cmSystemTools::Stdout(const char* s)
{
cmSystemTools::Stdout(s, strlen(s));
}
void cmSystemTools::Stderr(const char* s)
{
cmSystemTools::Stderr(s, strlen(s));
}
void cmSystemTools::Stderr(const char* s, size_t length)
{
if(s_StderrCallback)
{
(*s_StderrCallback)(s, length, s_StderrCallbackClientData);
}
else
{
std::cerr.write(s, length);
std::cerr.flush();
}
}
void cmSystemTools::Stdout(const char* s, size_t length)
{
if(s_StdoutCallback)
{
(*s_StdoutCallback)(s, length, s_StdoutCallbackClientData);
}
else
{
std::cout.write(s, length);
std::cout.flush();
}
}
void cmSystemTools::Message(const char* m1, const char *title)
{
if(s_DisableMessages)
{
return;
}
if(s_MessageCallback)
{
(*s_MessageCallback)(m1, title, s_DisableMessages,
s_MessageCallbackClientData);
return;
}
else
{
std::cerr << m1 << std::endl << std::flush;
}
}
void cmSystemTools::ReportLastSystemError(const char* msg)
{
std::string m = msg;
m += ": System Error: ";
m += Superclass::GetLastSystemError();
cmSystemTools::Error(m.c_str());
}
bool cmSystemTools::IsInternallyOn(const char* val)
{
if (!val)
{
return false;
}
std::basic_string<char> v = val;
if (v.size() > 4)
{
return false;
}
for(std::basic_string<char>::iterator c = v.begin();
c != v.end(); c++)
{
*c = static_cast<char>(toupper(*c));
}
return v == "I_ON";
}
bool cmSystemTools::IsOn(const char* val)
{
if (!val)
{
return false;
}
size_t len = strlen(val);
if (len > 4)
{
return false;
}
std::basic_string<char> v(val, len);
static std::set<std::string> onValues;
if(onValues.empty())
{
onValues.insert("ON");
onValues.insert("1");
onValues.insert("YES");
onValues.insert("TRUE");
onValues.insert("Y");
}
for(std::basic_string<char>::iterator c = v.begin();
c != v.end(); c++)
{
*c = static_cast<char>(toupper(*c));
}
return (onValues.count(v) > 0);
}
bool cmSystemTools::IsNOTFOUND(const char* val)
{
if(strcmp(val, "NOTFOUND") == 0)
{
return true;
}
return cmHasLiteralSuffix(val, "-NOTFOUND");
}
bool cmSystemTools::IsOff(const char* val)
{
if (!val || !*val)
{
return true;
}
size_t len = strlen(val);
// Try and avoid toupper() for large strings.
if (len > 6)
{
return cmSystemTools::IsNOTFOUND(val);
}
static std::set<std::string> offValues;
if(offValues.empty())
{
offValues.insert("OFF");
offValues.insert("0");
offValues.insert("NO");
offValues.insert("FALSE");
offValues.insert("N");
offValues.insert("IGNORE");
}
// Try and avoid toupper().
std::basic_string<char> v(val, len);
for(std::basic_string<char>::iterator c = v.begin();
c != v.end(); c++)
{
*c = static_cast<char>(toupper(*c));
}
return (offValues.count(v) > 0);
}
//----------------------------------------------------------------------------
void cmSystemTools::ParseWindowsCommandLine(const char* command,
std::vector<std::string>& args)
{
// See the MSDN document "Parsing C Command-Line Arguments" at
// http://msdn2.microsoft.com/en-us/library/a1y7w461.aspx for rules
// of parsing the windows command line.
bool in_argument = false;
bool in_quotes = false;
int backslashes = 0;
std::string arg;
for(const char* c = command;*c; ++c)
{
if(*c == '\\')
{
++backslashes;
in_argument = true;
}
else if(*c == '"')
{
int backslash_pairs = backslashes >> 1;
int backslash_escaped = backslashes & 1;
arg.append(backslash_pairs, '\\');
backslashes = 0;
if(backslash_escaped)
{
/* An odd number of backslashes precede this quote.
It is escaped. */
arg.append(1, '"');
}
else
{
/* An even number of backslashes precede this quote.
It is not escaped. */
in_quotes = !in_quotes;
}
in_argument = true;
}
else
{
arg.append(backslashes, '\\');
backslashes = 0;
if(((*c & 0x80) == 0 ) && isspace(*c))
{
if(in_quotes)
{
arg.append(1, *c);
}
else if(in_argument)
{
args.push_back(arg);
arg = "";
in_argument = false;
}
}
else
{
in_argument = true;
arg.append(1, *c);
}
}
}
arg.append(backslashes, '\\');
if(in_argument)
{
args.push_back(arg);
}
}
//----------------------------------------------------------------------------
class cmSystemToolsArgV
{
char** ArgV;
public:
cmSystemToolsArgV(char** argv): ArgV(argv) {}
~cmSystemToolsArgV()
{
for(char** arg = this->ArgV; arg && *arg; ++arg)
{
free(*arg);
}
free(this->ArgV);
}
void Store(std::vector<std::string>& args) const
{
for(char** arg = this->ArgV; arg && *arg; ++arg)
{
args.push_back(*arg);
}
}
};
//----------------------------------------------------------------------------
void cmSystemTools::ParseUnixCommandLine(const char* command,
std::vector<std::string>& args)
{
// Invoke the underlying parser.
cmSystemToolsArgV argv = cmsysSystem_Parse_CommandForUnix(command, 0);
argv.Store(args);
}
std::string cmSystemTools::EscapeWindowsShellArgument(const char* arg,
int shell_flags)
{
char local_buffer[1024];
char* buffer = local_buffer;
int size = cmsysSystem_Shell_GetArgumentSizeForWindows(arg, shell_flags);
if(size > 1024)
{
buffer = new char[size];
}
cmsysSystem_Shell_GetArgumentForWindows(arg, buffer, shell_flags);
std::string result(buffer);
if(buffer != local_buffer)
{
delete [] buffer;
}
return result;
}
std::vector<std::string> cmSystemTools::ParseArguments(const char* command)
{
std::vector<std::string> args;
std::string arg;
bool win_path = false;
if ((command[0] != '/' && command[1] == ':' && command[2] == '\\') ||
(command[0] == '\"' && command[1] != '/' && command[2] == ':'
&& command[3] == '\\') ||
(command[0] == '\'' && command[1] != '/' && command[2] == ':'
&& command[3] == '\\') ||
(command[0] == '\\' && command[1] == '\\'))
{
win_path = true;
}
// Split the command into an argv array.
for(const char* c = command; *c;)
{
// Skip over whitespace.
while(*c == ' ' || *c == '\t')
{
++c;
}
arg = "";
if(*c == '"')
{
// Parse a quoted argument.
++c;
while(*c && *c != '"')
{
arg.append(1, *c);
++c;
}
if(*c)
{
++c;
}
args.push_back(arg);
}
else if(*c == '\'')
{
// Parse a quoted argument.
++c;
while(*c && *c != '\'')
{
arg.append(1, *c);
++c;
}
if(*c)
{
++c;
}
args.push_back(arg);
}
else if(*c)
{
// Parse an unquoted argument.
while(*c && *c != ' ' && *c != '\t')
{
if(*c == '\\' && !win_path)
{
++c;
if(*c)
{
arg.append(1, *c);
++c;
}
}
else
{
arg.append(1, *c);
++c;
}
}
args.push_back(arg);
}
}
return args;
}
bool cmSystemTools::RunSingleCommand(std::vector<std::string>const& command,
std::string* captureStdOut,
std::string* captureStdErr,
int* retVal , const char* dir ,
OutputOption outputflag ,
double timeout )
{
std::vector<const char*> argv;
for(std::vector<std::string>::const_iterator a = command.begin();
a != command.end(); ++a)
{
argv.push_back(a->c_str());
}
argv.push_back(0);
if ( captureStdOut )
{
*captureStdOut = "";
}
if (captureStdErr && captureStdErr != captureStdOut)
{
*captureStdErr = "";
}
cmsysProcess* cp = cmsysProcess_New();
cmsysProcess_SetCommand(cp, &*argv.begin());
cmsysProcess_SetWorkingDirectory(cp, dir);
if(cmSystemTools::GetRunCommandHideConsole())
{
cmsysProcess_SetOption(cp, cmsysProcess_Option_HideWindow, 1);
}
if (outputflag == OUTPUT_PASSTHROUGH)
{
cmsysProcess_SetPipeShared(cp, cmsysProcess_Pipe_STDOUT, 1);
cmsysProcess_SetPipeShared(cp, cmsysProcess_Pipe_STDERR, 1);
}
cmsysProcess_SetTimeout(cp, timeout);
cmsysProcess_Execute(cp);
std::vector<char> tempStdOut;
std::vector<char> tempStdErr;
char* data;
int length;
int pipe;
if(outputflag != OUTPUT_PASSTHROUGH &&
(captureStdOut || captureStdErr || outputflag != OUTPUT_NONE))
{
while((pipe = cmsysProcess_WaitForData(cp, &data, &length, 0)) > 0)
{
if(captureStdOut || captureStdErr || outputflag != OUTPUT_NONE)
{
// Translate NULL characters in the output into valid text.
// Visual Studio 7 puts these characters in the output of its
// build process.
for(int i=0; i < length; ++i)
{
if(data[i] == '\0')
{
data[i] = ' ';
}
}
}
if(pipe == cmsysProcess_Pipe_STDOUT ||
(pipe == cmsysProcess_Pipe_STDERR &&
captureStdOut == captureStdErr))
{
if (captureStdOut)
{
tempStdOut.insert(tempStdOut.end(), data, data+length);
}
}
else if(pipe == cmsysProcess_Pipe_STDERR)
{
if (captureStdErr)
{
tempStdErr.insert(tempStdErr.end(), data, data+length);
}
}
if(outputflag != OUTPUT_NONE)
{
if(outputflag == OUTPUT_MERGE)
{
cmSystemTools::Stdout(data, length);
}
else
{
if(pipe == cmsysProcess_Pipe_STDERR)
{
cmSystemTools::Stderr(data, length);
}
else if(pipe == cmsysProcess_Pipe_STDOUT)
{
cmSystemTools::Stdout(data, length);
}
}
}
}
}
cmsysProcess_WaitForExit(cp, 0);
if ( captureStdOut && tempStdOut.begin() != tempStdOut.end())
{
captureStdOut->append(&*tempStdOut.begin(), tempStdOut.size());
}
if ( captureStdErr && captureStdErr != captureStdOut &&
tempStdErr.begin() != tempStdErr.end())
{
captureStdErr->append(&*tempStdErr.begin(), tempStdErr.size());
}
bool result = true;
if(cmsysProcess_GetState(cp) == cmsysProcess_State_Exited)
{
if ( retVal )
{
*retVal = cmsysProcess_GetExitValue(cp);
}
else
{
if ( cmsysProcess_GetExitValue(cp) != 0 )
{
result = false;
}
}
}
else if(cmsysProcess_GetState(cp) == cmsysProcess_State_Exception)
{
const char* exception_str = cmsysProcess_GetExceptionString(cp);
if ( outputflag != OUTPUT_NONE )
{
std::cerr << exception_str << std::endl;
}
if ( captureStdErr )
{
captureStdErr->append(exception_str, strlen(exception_str));
}
result = false;
}
else if(cmsysProcess_GetState(cp) == cmsysProcess_State_Error)
{
const char* error_str = cmsysProcess_GetErrorString(cp);
if ( outputflag != OUTPUT_NONE )
{
std::cerr << error_str << std::endl;
}
if ( captureStdErr )
{
captureStdErr->append(error_str, strlen(error_str));
}
result = false;
}
else if(cmsysProcess_GetState(cp) == cmsysProcess_State_Expired)
{
const char* error_str = "Process terminated due to timeout\n";
if ( outputflag != OUTPUT_NONE )
{
std::cerr << error_str << std::endl;
}
if ( captureStdErr )
{
captureStdErr->append(error_str, strlen(error_str));
}
result = false;
}
cmsysProcess_Delete(cp);
return result;
}
bool cmSystemTools::RunSingleCommand(
const char* command,
std::string* captureStdOut,
std::string* captureStdErr,
int *retVal,
const char* dir,
OutputOption outputflag,
double timeout)
{
if(s_DisableRunCommandOutput)
{
outputflag = OUTPUT_NONE;
}
std::vector<std::string> args = cmSystemTools::ParseArguments(command);
if(args.size() < 1)
{
return false;
}
return cmSystemTools::RunSingleCommand(args, captureStdOut, captureStdErr,
retVal, dir, outputflag, timeout);
}
std::string
cmSystemTools::PrintSingleCommand(std::vector<std::string> const& command)
{
if (command.empty())
{
return std::string();
}
return cmWrap('"', command, '"', " ");
}
bool cmSystemTools::DoesFileExistWithExtensions(
const char* name,
const std::vector<std::string>& headerExts)
{
std::string hname;
for( std::vector<std::string>::const_iterator ext = headerExts.begin();
ext != headerExts.end(); ++ext )
{
hname = name;
hname += ".";
hname += *ext;
if(cmSystemTools::FileExists(hname.c_str()))
{
return true;
}
}
return false;
}
std::string cmSystemTools::FileExistsInParentDirectories(const char* fname,
const char* directory, const char* toplevel)
{
std::string file = fname;
cmSystemTools::ConvertToUnixSlashes(file);
std::string dir = directory;
cmSystemTools::ConvertToUnixSlashes(dir);
std::string prevDir;
while(dir != prevDir)
{
std::string path = dir + "/" + file;
if ( cmSystemTools::FileExists(path.c_str()) )
{
return path;
}
if ( dir.size() < strlen(toplevel) )
{
break;
}
prevDir = dir;
dir = cmSystemTools::GetParentDirectory(dir);
}
return "";
}
bool cmSystemTools::cmCopyFile(const char* source, const char* destination)
{
return Superclass::CopyFileAlways(source, destination);
}
bool cmSystemTools::CopyFileIfDifferent(const char* source,
const char* destination)
{
return Superclass::CopyFileIfDifferent(source, destination);
}
//----------------------------------------------------------------------------
#ifdef _WIN32
cmSystemTools::WindowsFileRetry cmSystemTools::GetWindowsFileRetry()
{
static WindowsFileRetry retry = {0,0};
if(!retry.Count)
{
unsigned int data[2] = {0,0};
HKEY const keys[2] = {HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE};
wchar_t const* const values[2] = {L"FilesystemRetryCount",
L"FilesystemRetryDelay"};
for(int k=0; k < 2; ++k)
{
HKEY hKey;
if(RegOpenKeyExW(keys[k], L"Software\\Kitware\\CMake\\Config",
0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
{
for(int v=0; v < 2; ++v)
{
DWORD dwData, dwType, dwSize = 4;
if(!data[v] &&
RegQueryValueExW(hKey, values[v], 0, &dwType, (BYTE *)&dwData,
&dwSize) == ERROR_SUCCESS &&
dwType == REG_DWORD && dwSize == 4)
{
data[v] = static_cast<unsigned int>(dwData);
}
}
RegCloseKey(hKey);
}
}
retry.Count = data[0]? data[0] : 5;
retry.Delay = data[1]? data[1] : 500;
}
return retry;
}
#endif
//----------------------------------------------------------------------------
bool cmSystemTools::RenameFile(const char* oldname, const char* newname)
{
#ifdef _WIN32
# ifndef INVALID_FILE_ATTRIBUTES
# define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
# endif
/* Windows MoveFileEx may not replace read-only or in-use files. If it
fails then remove the read-only attribute from any existing destination.
Try multiple times since we may be racing against another process
creating/opening the destination file just before our MoveFileEx. */
WindowsFileRetry retry = cmSystemTools::GetWindowsFileRetry();
while(!MoveFileExW(cmsys::Encoding::ToWide(oldname).c_str(),
cmsys::Encoding::ToWide(newname).c_str(),
MOVEFILE_REPLACE_EXISTING) && --retry.Count)
{
DWORD last_error = GetLastError();
// Try again only if failure was due to access/sharing permissions.
if(last_error != ERROR_ACCESS_DENIED &&
last_error != ERROR_SHARING_VIOLATION)
{
return false;
}
DWORD attrs =
GetFileAttributesW(cmsys::Encoding::ToWide(newname).c_str());
if((attrs != INVALID_FILE_ATTRIBUTES) &&
(attrs & FILE_ATTRIBUTE_READONLY))
{
// Remove the read-only attribute from the destination file.
SetFileAttributesW(cmsys::Encoding::ToWide(newname).c_str(),
attrs & ~FILE_ATTRIBUTE_READONLY);
}
else
{
// The file may be temporarily in use so wait a bit.
cmSystemTools::Delay(retry.Delay);
}
}
return retry.Count > 0;
#else
/* On UNIX we have an OS-provided call to do this atomically. */
return rename(oldname, newname) == 0;
#endif
}
bool cmSystemTools::ComputeFileMD5(const std::string& source, char* md5out)
{
#if defined(CMAKE_BUILD_WITH_CMAKE)
cmCryptoHashMD5 md5;
std::string str = md5.HashFile(source);
strncpy(md5out, str.c_str(), 32);
return !str.empty();
#else
(void)source;
(void)md5out;
cmSystemTools::Message("md5sum not supported in bootstrapping mode","Error");
return false;
#endif
}
std::string cmSystemTools::ComputeStringMD5(const std::string& input)
{
#if defined(CMAKE_BUILD_WITH_CMAKE)
cmCryptoHashMD5 md5;
return md5.HashString(input);
#else
(void)input;
cmSystemTools::Message("md5sum not supported in bootstrapping mode","Error");
return "";
#endif
}
void cmSystemTools::Glob(const std::string& directory,
const std::string& regexp,
std::vector<std::string>& files)
{
cmsys::Directory d;
cmsys::RegularExpression reg(regexp.c_str());
if (d.Load(directory))
{
size_t numf;
unsigned int i;
numf = d.GetNumberOfFiles();
for (i = 0; i < numf; i++)
{
std::string fname = d.GetFile(i);
if (reg.find(fname))
{
files.push_back(fname);
}
}
}
}
void cmSystemTools::GlobDirs(const std::string& path,
std::vector<std::string>& files)
{
std::string::size_type pos = path.find("/*");
if(pos == std::string::npos)
{
files.push_back(path);
return;
}
std::string startPath = path.substr(0, pos);
std::string finishPath = path.substr(pos+2);
cmsys::Directory d;
if (d.Load(startPath))
{
for (unsigned int i = 0; i < d.GetNumberOfFiles(); ++i)
{
if((std::string(d.GetFile(i)) != ".")
&& (std::string(d.GetFile(i)) != ".."))
{
std::string fname = startPath;
fname +="/";
fname += d.GetFile(i);
if(cmSystemTools::FileIsDirectory(fname))
{
fname += finishPath;
cmSystemTools::GlobDirs(fname, files);
}
}
}
}
}
void cmSystemTools::ExpandList(std::vector<std::string> const& arguments,
std::vector<std::string>& newargs)
{
std::vector<std::string>::const_iterator i;
for(i = arguments.begin();i != arguments.end(); ++i)
{
cmSystemTools::ExpandListArgument(*i, newargs);
}
}
void cmSystemTools::ExpandListArgument(const std::string& arg,
std::vector<std::string>& newargs,
bool emptyArgs)
{
// If argument is empty, it is an empty list.
if(!emptyArgs && arg.empty())
{
return;
}
// if there are no ; in the name then just copy the current string
if(arg.find(';') == std::string::npos)
{
newargs.push_back(arg);
return;
}
std::string newArg;
const char *last = arg.c_str();
// Break the string at non-escaped semicolons not nested in [].
int squareNesting = 0;
for(const char* c = last; *c; ++c)
{
switch(*c)
{
case '\\':
{
// We only want to allow escaping of semicolons. Other
// escapes should not be processed here.
const char* next = c + 1;
if(*next == ';')
{
newArg.append(last, c - last);
// Skip over the escape character
last = c = next;
}
} break;
case '[':
{
++squareNesting;
} break;
case ']':
{
--squareNesting;
} break;
case ';':
{
// Break the string here if we are not nested inside square
// brackets.
if(squareNesting == 0)
{
newArg.append(last, c - last);
// Skip over the semicolon
last = c + 1;
if ( !newArg.empty() || emptyArgs )
{
// Add the last argument if the string is not empty.
newargs.push_back(newArg);
newArg = "";
}
}
} break;
default:
{
// Just append this character.
} break;
}
}
newArg.append(last);
if ( !newArg.empty() || emptyArgs )
{
// Add the last argument if the string is not empty.
newargs.push_back(newArg);
}
}
bool cmSystemTools::SimpleGlob(const std::string& glob,
std::vector<std::string>& files,
int type /* = 0 */)
{
files.clear();
if ( glob[glob.size()-1] != '*' )
{
return false;
}
std::string path = cmSystemTools::GetFilenamePath(glob);
std::string ppath = cmSystemTools::GetFilenameName(glob);
ppath = ppath.substr(0, ppath.size()-1);
if (path.empty())
{
path = "/";
}
bool res = false;
cmsys::Directory d;
if (d.Load(path))
{
for (unsigned int i = 0; i < d.GetNumberOfFiles(); ++i)
{
if((std::string(d.GetFile(i)) != ".")
&& (std::string(d.GetFile(i)) != ".."))
{
std::string fname = path;
if ( path[path.size()-1] != '/' )
{
fname +="/";
}
fname += d.GetFile(i);
std::string sfname = d.GetFile(i);
if ( type > 0 && cmSystemTools::FileIsDirectory(fname) )
{
continue;
}
if ( type < 0 && !cmSystemTools::FileIsDirectory(fname) )
{
continue;
}
if ( sfname.size() >= ppath.size() &&
sfname.substr(0, ppath.size()) ==
ppath )
{
files.push_back(fname);
res = true;
}
}
}
}
return res;
}
cmSystemTools::FileFormat cmSystemTools::GetFileFormat(const char* cext)
{
if ( ! cext || *cext == 0 )
{
return cmSystemTools::NO_FILE_FORMAT;
}
//std::string ext = cmSystemTools::LowerCase(cext);
std::string ext = cext;
if ( ext == "c" || ext == ".c" ||
ext == "m" || ext == ".m"
) { return cmSystemTools::C_FILE_FORMAT; }
if (
ext == "C" || ext == ".C" ||
ext == "M" || ext == ".M" ||
ext == "c++" || ext == ".c++" ||
ext == "cc" || ext == ".cc" ||
ext == "cpp" || ext == ".cpp" ||
ext == "cxx" || ext == ".cxx" ||
ext == "mm" || ext == ".mm"
) { return cmSystemTools::CXX_FILE_FORMAT; }
if (
ext == "f" || ext == ".f" ||
ext == "F" || ext == ".F" ||
ext == "f77" || ext == ".f77" ||
ext == "f90" || ext == ".f90" ||
ext == "for" || ext == ".for" ||
ext == "f95" || ext == ".f95"
) { return cmSystemTools::FORTRAN_FILE_FORMAT; }
if ( ext == "java" || ext == ".java" )
{ return cmSystemTools::JAVA_FILE_FORMAT; }
if (
ext == "H" || ext == ".H" ||
ext == "h" || ext == ".h" ||
ext == "h++" || ext == ".h++" ||
ext == "hm" || ext == ".hm" ||
ext == "hpp" || ext == ".hpp" ||
ext == "hxx" || ext == ".hxx" ||
ext == "in" || ext == ".in" ||
ext == "txx" || ext == ".txx"
) { return cmSystemTools::HEADER_FILE_FORMAT; }
if ( ext == "rc" || ext == ".rc" )
{ return cmSystemTools::RESOURCE_FILE_FORMAT; }
if ( ext == "def" || ext == ".def" )
{ return cmSystemTools::DEFINITION_FILE_FORMAT; }
if ( ext == "lib" || ext == ".lib" ||
ext == "a" || ext == ".a")
{ return cmSystemTools::STATIC_LIBRARY_FILE_FORMAT; }
if ( ext == "o" || ext == ".o" ||
ext == "obj" || ext == ".obj")
{ return cmSystemTools::OBJECT_FILE_FORMAT; }
#ifdef __APPLE__
if ( ext == "dylib" || ext == ".dylib" )
{ return cmSystemTools::SHARED_LIBRARY_FILE_FORMAT; }
if ( ext == "so" || ext == ".so" ||
ext == "bundle" || ext == ".bundle" )
{ return cmSystemTools::MODULE_FILE_FORMAT; }
#else // __APPLE__
if ( ext == "so" || ext == ".so" ||
ext == "sl" || ext == ".sl" ||
ext == "dll" || ext == ".dll" )
{ return cmSystemTools::SHARED_LIBRARY_FILE_FORMAT; }
#endif // __APPLE__
return cmSystemTools::UNKNOWN_FILE_FORMAT;
}
bool cmSystemTools::Split(const char* s, std::vector<std::string>& l)
{
std::vector<std::string> temp;
bool res = Superclass::Split(s, temp);
l.insert(l.end(), temp.begin(), temp.end());
return res;
}
std::string cmSystemTools::ConvertToOutputPath(const char* path)
{
#if defined(_WIN32) && !defined(__CYGWIN__)
if(s_ForceUnixPaths)
{
return cmSystemTools::ConvertToUnixOutputPath(path);
}
return cmSystemTools::ConvertToWindowsOutputPath(path);
#else
return cmSystemTools::ConvertToUnixOutputPath(path);
#endif
}
void cmSystemTools::ConvertToOutputSlashes(std::string& path)
{
#if defined(_WIN32) && !defined(__CYGWIN__)
if(!s_ForceUnixPaths)
{
// Convert to windows slashes.
std::string::size_type pos = 0;
while((pos = path.find('/', pos)) != std::string::npos)
{
path[pos++] = '\\';
}
}
#else
static_cast<void>(path);
#endif
}
std::string cmSystemTools::ConvertToRunCommandPath(const char* path)
{
#if defined(_WIN32) && !defined(__CYGWIN__)
return cmSystemTools::ConvertToWindowsOutputPath(path);
#else
return cmSystemTools::ConvertToUnixOutputPath(path);
#endif
}
bool cmSystemTools::StringEndsWith(const char* str1, const char* str2)
{
if ( !str1 || !str2 || strlen(str1) < strlen(str2) )
{
return 0;
}
return !strncmp(str1 + (strlen(str1)-strlen(str2)), str2, strlen(str2));
}
// compute the relative path from here to there
std::string cmSystemTools::RelativePath(const char* local, const char* remote)
{
if(!cmSystemTools::FileIsFullPath(local))
{
cmSystemTools::Error("RelativePath must be passed a full path to local: ",
local);
}
if(!cmSystemTools::FileIsFullPath(remote))
{
cmSystemTools::Error
("RelativePath must be passed a full path to remote: ", remote);
}
return cmsys::SystemTools::RelativePath(local, remote);
}
std::string cmSystemTools::CollapseCombinedPath(std::string const& dir,
std::string const& file)
{
if(dir.empty() || dir == ".")
{
return file;
}
std::vector<std::string> dirComponents;
std::vector<std::string> fileComponents;
cmSystemTools::SplitPath(dir, dirComponents);
cmSystemTools::SplitPath(file, fileComponents);
if(fileComponents.empty())
{
return dir;
}
if(fileComponents[0] != "")
{
// File is not a relative path.
return file;
}
std::vector<std::string>::iterator i = fileComponents.begin()+1;
while(i != fileComponents.end() && *i == ".." && dirComponents.size() > 1)
{
++i; // Remove ".." file component.
dirComponents.pop_back(); // Remove last dir component.
}
dirComponents.insert(dirComponents.end(), i, fileComponents.end());
return cmSystemTools::JoinPath(dirComponents);
}
#ifdef CMAKE_BUILD_WITH_CMAKE
//----------------------------------------------------------------------
bool cmSystemTools::UnsetEnv(const char* value)
{
#if !defined(HAVE_UNSETENV)
std::string var = value;
var += "=";
return cmSystemTools::PutEnv(var.c_str());
#else
unsetenv(value);
return true;
#endif
}
//----------------------------------------------------------------------
std::vector<std::string> cmSystemTools::GetEnvironmentVariables()
{
std::vector<std::string> env;
int cc;
for ( cc = 0; environ[cc]; ++ cc )
{
env.push_back(environ[cc]);
}
return env;
}
//----------------------------------------------------------------------
void cmSystemTools::AppendEnv(std::vector<std::string> const& env)
{
for(std::vector<std::string>::const_iterator eit = env.begin();
eit != env.end(); ++eit)
{
cmSystemTools::PutEnv(*eit);
}
}
//----------------------------------------------------------------------
cmSystemTools::SaveRestoreEnvironment::SaveRestoreEnvironment()
{
this->Env = cmSystemTools::GetEnvironmentVariables();
}
//----------------------------------------------------------------------
cmSystemTools::SaveRestoreEnvironment::~SaveRestoreEnvironment()
{
// First clear everything in the current environment:
std::vector<std::string> currentEnv = GetEnvironmentVariables();
for(std::vector<std::string>::const_iterator
eit = currentEnv.begin(); eit != currentEnv.end(); ++eit)
{
std::string var(*eit);
std::string::size_type pos = var.find("=");
if (pos != std::string::npos)
{
var = var.substr(0, pos);
}
cmSystemTools::UnsetEnv(var.c_str());
}
// Then put back each entry from the original environment:
cmSystemTools::AppendEnv(this->Env);
}
#endif
void cmSystemTools::EnableVSConsoleOutput()
{
#ifdef _WIN32
// Visual Studio 8 2005 (devenv.exe or VCExpress.exe) will not
// display output to the console unless this environment variable is
// set. We need it to capture the output of these build tools.
// Note for future work that one could pass "/out \\.\pipe\NAME" to
// either of these executables where NAME is created with
// CreateNamedPipe. This would bypass the internal buffering of the
// output and allow it to be captured on the fly.
cmSystemTools::PutEnv("vsconsoleoutput=1");
# ifdef CMAKE_BUILD_WITH_CMAKE
// VS sets an environment variable to tell MS tools like "cl" to report
// output through a backdoor pipe instead of stdout/stderr. Unset the
// environment variable to close this backdoor for any path of process
// invocations that passes through CMake so we can capture the output.
cmSystemTools::UnsetEnv("VS_UNICODE_OUTPUT");
# endif
#endif
}
bool cmSystemTools::IsPathToFramework(const char* path)
{
return (cmSystemTools::FileIsFullPath(path) &&
cmHasLiteralSuffix(path, ".framework"));
}
bool cmSystemTools::CreateTar(const char* outFileName,
const std::vector<std::string>& files,
cmTarCompression compressType,
bool verbose, std::string const& mtime,
std::string const& format)
{
#if defined(CMAKE_BUILD_WITH_CMAKE)
std::string cwd = cmSystemTools::GetCurrentWorkingDirectory();
cmsys::ofstream fout(outFileName, std::ios::out | cmsys_ios_binary);
if(!fout)
{
std::string e = "Cannot open output file \"";
e += outFileName;
e += "\": ";
e += cmSystemTools::GetLastSystemError();
cmSystemTools::Error(e.c_str());
return false;
}
cmArchiveWrite::Compress compress = cmArchiveWrite::CompressNone;
switch (compressType)
{
case TarCompressGZip:
compress = cmArchiveWrite::CompressGZip;
break;
case TarCompressBZip2:
compress = cmArchiveWrite::CompressBZip2;
break;
case TarCompressXZ:
compress = cmArchiveWrite::CompressXZ;
break;
case TarCompressNone:
compress = cmArchiveWrite::CompressNone;
break;
}
cmArchiveWrite a(fout, compress,
format.empty() ? "paxr" : format);
a.SetMTime(mtime);
a.SetVerbose(verbose);
for(std::vector<std::string>::const_iterator i = files.begin();
i != files.end(); ++i)
{
std::string path = *i;
if(cmSystemTools::FileIsFullPath(path.c_str()))
{
// Get the relative path to the file.
path = cmSystemTools::RelativePath(cwd.c_str(), path.c_str());
}
if(!a.Add(path))
{
break;
}
}
if(!a)
{
cmSystemTools::Error(a.GetError().c_str());
return false;
}
return true;
#else
(void)outFileName;
(void)files;
(void)verbose;
return false;
#endif
}
#if defined(CMAKE_BUILD_WITH_CMAKE)
namespace{
#define BSDTAR_FILESIZE_PRINTF "%lu"
#define BSDTAR_FILESIZE_TYPE unsigned long
void
list_item_verbose(FILE *out, struct archive_entry *entry)
{
char tmp[100];
size_t w;
const char *p;
const char *fmt;
time_t tim;
static time_t now;
size_t u_width = 6;
size_t gs_width = 13;
/*
* We avoid collecting the entire list in memory at once by
* listing things as we see them. However, that also means we can't
* just pre-compute the field widths. Instead, we start with guesses
* and just widen them as necessary. These numbers are completely
* arbitrary.
*/
if (!now)
{
time(&now);
}
fprintf(out, "%s %d ",
archive_entry_strmode(entry),
archive_entry_nlink(entry));
/* Use uname if it's present, else uid. */
p = archive_entry_uname(entry);
if ((p == NULL) || (*p == '\0'))
{
sprintf(tmp, "%lu ",
(unsigned long)archive_entry_uid(entry));
p = tmp;
}
w = strlen(p);
if (w > u_width)
{
u_width = w;
}
fprintf(out, "%-*s ", (int)u_width, p);
/* Use gname if it's present, else gid. */
p = archive_entry_gname(entry);
if (p != NULL && p[0] != '\0')
{
fprintf(out, "%s", p);
w = strlen(p);
}
else
{
sprintf(tmp, "%lu",
(unsigned long)archive_entry_gid(entry));
w = strlen(tmp);
fprintf(out, "%s", tmp);
}
/*
* Print device number or file size, right-aligned so as to make
* total width of group and devnum/filesize fields be gs_width.
* If gs_width is too small, grow it.
*/
if (archive_entry_filetype(entry) == AE_IFCHR
|| archive_entry_filetype(entry) == AE_IFBLK)
{
sprintf(tmp, "%lu,%lu",
(unsigned long)archive_entry_rdevmajor(entry),
(unsigned long)archive_entry_rdevminor(entry));
}
else
{
/*
* Note the use of platform-dependent macros to format
* the filesize here. We need the format string and the
* corresponding type for the cast.
*/
sprintf(tmp, BSDTAR_FILESIZE_PRINTF,
(BSDTAR_FILESIZE_TYPE)archive_entry_size(entry));
}
if (w + strlen(tmp) >= gs_width)
{
gs_width = w+strlen(tmp)+1;
}
fprintf(out, "%*s", (int)(gs_width - w), tmp);
/* Format the time using 'ls -l' conventions. */
tim = archive_entry_mtime(entry);
#define HALF_YEAR (time_t)365 * 86400 / 2
#if defined(_WIN32) && !defined(__CYGWIN__)
/* Windows' strftime function does not support %e format. */
#define DAY_FMT "%d"
#else
#define DAY_FMT "%e" /* Day number without leading zeros */
#endif
if (tim < now - HALF_YEAR || tim > now + HALF_YEAR)
{
fmt = DAY_FMT " %b %Y";
}
else
{
fmt = DAY_FMT " %b %H:%M";
}
strftime(tmp, sizeof(tmp), fmt, localtime(&tim));
fprintf(out, " %s ", tmp);
fprintf(out, "%s", cm_archive_entry_pathname(entry).c_str());
/* Extra information for links. */
if (archive_entry_hardlink(entry)) /* Hard link */
{
fprintf(out, " link to %s",
archive_entry_hardlink(entry));
}
else if (archive_entry_symlink(entry)) /* Symbolic link */
{
fprintf(out, " -> %s", archive_entry_symlink(entry));
}
}
long copy_data(struct archive *ar, struct archive *aw)
{
long r;
const void *buff;
size_t size;
#if defined(ARCHIVE_VERSION_NUMBER) && ARCHIVE_VERSION_NUMBER >= 3000000
__LA_INT64_T offset;
#else
off_t offset;
#endif
for (;;)
{
r = archive_read_data_block(ar, &buff, &size, &offset);
if (r == ARCHIVE_EOF)
{
return (ARCHIVE_OK);
}
if (r != ARCHIVE_OK)
{
return (r);
}
r = archive_write_data_block(aw, buff, size, offset);
if (r != ARCHIVE_OK)
{
cmSystemTools::Message("archive_write_data_block()",
archive_error_string(aw));
return (r);
}
}
#if !defined(__clang__) && !defined(__HP_aCC)
return r; /* this should not happen but it quiets some compilers */
#endif
}
bool extract_tar(const char* outFileName, bool verbose,
bool extract)
{
cmLocaleRAII localeRAII;
static_cast<void>(localeRAII);
struct archive* a = archive_read_new();
struct archive *ext = archive_write_disk_new();
archive_read_support_compression_all(a);
archive_read_support_format_all(a);
struct archive_entry *entry;
int r = cm_archive_read_open_file(a, outFileName, 10240);
if(r)
{
cmSystemTools::Error("Problem with archive_read_open_file(): ",
archive_error_string(a));
archive_write_free(ext);
archive_read_close(a);
return false;
}
for (;;)
{
r = archive_read_next_header(a, &entry);
if (r == ARCHIVE_EOF)
{
break;
}
if (r != ARCHIVE_OK)
{
cmSystemTools::Error("Problem with archive_read_next_header(): ",
archive_error_string(a));
break;
}
if(verbose)
{
if(extract)
{
cmSystemTools::Stdout("x ");
cmSystemTools::Stdout(cm_archive_entry_pathname(entry).c_str());
}
else
{
list_item_verbose(stdout, entry);
}
cmSystemTools::Stdout("\n");
}
else if(!extract)
{
cmSystemTools::Stdout(cm_archive_entry_pathname(entry).c_str());
cmSystemTools::Stdout("\n");
}
if(extract)
{
r = archive_write_disk_set_options(ext, ARCHIVE_EXTRACT_TIME);
if (r != ARCHIVE_OK)
{
cmSystemTools::Error(
"Problem with archive_write_disk_set_options(): ",
archive_error_string(ext));
break;
}
r = archive_write_header(ext, entry);
if (r == ARCHIVE_OK)
{
copy_data(a, ext);
r = archive_write_finish_entry(ext);
if (r != ARCHIVE_OK)
{
cmSystemTools::Error("Problem with archive_write_finish_entry(): ",
archive_error_string(ext));
break;
}
}
#ifdef _WIN32
else if(const char* linktext = archive_entry_symlink(entry))
{
std::cerr << "cmake -E tar: warning: skipping symbolic link \""
<< cm_archive_entry_pathname(entry)
<< "\" -> \""
<< linktext << "\"." << std::endl;
}
#endif
else
{
cmSystemTools::Error("Problem with archive_write_header(): ",
archive_error_string(ext));
cmSystemTools::Error("Current file: ",
cm_archive_entry_pathname(entry).c_str());
break;
}
}
}
archive_write_free(ext);
archive_read_close(a);
archive_read_finish(a);
return r == ARCHIVE_EOF || r == ARCHIVE_OK;
}
}
#endif
bool cmSystemTools::ExtractTar(const char* outFileName,
bool verbose)
{
#if defined(CMAKE_BUILD_WITH_CMAKE)
return extract_tar(outFileName, verbose, true);
#else
(void)outFileName;
(void)verbose;
return false;
#endif
}
bool cmSystemTools::ListTar(const char* outFileName,
bool verbose)
{
#if defined(CMAKE_BUILD_WITH_CMAKE)
return extract_tar(outFileName, verbose, false);
#else
(void)outFileName;
(void)verbose;
return false;
#endif
}
int cmSystemTools::WaitForLine(cmsysProcess* process, std::string& line,
double timeout,
std::vector<char>& out,
std::vector<char>& err)
{
line = "";
std::vector<char>::iterator outiter = out.begin();
std::vector<char>::iterator erriter = err.begin();
while(1)
{
// Check for a newline in stdout.
for(;outiter != out.end(); ++outiter)
{
if((*outiter == '\r') && ((outiter+1) == out.end()))
{
break;
}
else if(*outiter == '\n' || *outiter == '\0')
{
std::vector<char>::size_type length = outiter-out.begin();
if(length > 1 && *(outiter-1) == '\r')
{
--length;
}
if(length > 0)
{
line.append(&out[0], length);
}
out.erase(out.begin(), outiter+1);
return cmsysProcess_Pipe_STDOUT;
}
}
// Check for a newline in stderr.
for(;erriter != err.end(); ++erriter)
{
if((*erriter == '\r') && ((erriter+1) == err.end()))
{
break;
}
else if(*erriter == '\n' || *erriter == '\0')
{
std::vector<char>::size_type length = erriter-err.begin();
if(length > 1 && *(erriter-1) == '\r')
{
--length;
}
if(length > 0)
{
line.append(&err[0], length);
}
err.erase(err.begin(), erriter+1);
return cmsysProcess_Pipe_STDERR;
}
}
// No newlines found. Wait for more data from the process.
int length;
char* data;
int pipe = cmsysProcess_WaitForData(process, &data, &length, &timeout);
if(pipe == cmsysProcess_Pipe_Timeout)
{
// Timeout has been exceeded.
return pipe;
}
else if(pipe == cmsysProcess_Pipe_STDOUT)
{
// Append to the stdout buffer.
std::vector<char>::size_type size = out.size();
out.insert(out.end(), data, data+length);
outiter = out.begin()+size;
}
else if(pipe == cmsysProcess_Pipe_STDERR)
{
// Append to the stderr buffer.
std::vector<char>::size_type size = err.size();
err.insert(err.end(), data, data+length);
erriter = err.begin()+size;
}
else if(pipe == cmsysProcess_Pipe_None)
{
// Both stdout and stderr pipes have broken. Return leftover data.
if(!out.empty())
{
line.append(&out[0], outiter-out.begin());
out.erase(out.begin(), out.end());
return cmsysProcess_Pipe_STDOUT;
}
else if(!err.empty())
{
line.append(&err[0], erriter-err.begin());
err.erase(err.begin(), err.end());
return cmsysProcess_Pipe_STDERR;
}
else
{
return cmsysProcess_Pipe_None;
}
}
}
}
void cmSystemTools::DoNotInheritStdPipes()
{
#ifdef _WIN32
// Check to see if we are attached to a console
// if so, then do not stop the inherited pipes
// or stdout and stderr will not show up in dos
// shell windows
CONSOLE_SCREEN_BUFFER_INFO hOutInfo;
HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
if(GetConsoleScreenBufferInfo(hOut, &hOutInfo))
{
return;
}
{
HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
DuplicateHandle(GetCurrentProcess(), out,
GetCurrentProcess(), &out, 0, FALSE,
DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
SetStdHandle(STD_OUTPUT_HANDLE, out);
}
{
HANDLE out = GetStdHandle(STD_ERROR_HANDLE);
DuplicateHandle(GetCurrentProcess(), out,
GetCurrentProcess(), &out, 0, FALSE,
DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
SetStdHandle(STD_ERROR_HANDLE, out);
}
#endif
}
//----------------------------------------------------------------------------
bool cmSystemTools::CopyFileTime(const char* fromFile, const char* toFile)
{
#if defined(_WIN32) && !defined(__CYGWIN__)
cmSystemToolsWindowsHandle hFrom =
CreateFileW(cmsys::Encoding::ToWide(fromFile).c_str(),
GENERIC_READ, FILE_SHARE_READ, 0,
OPEN_EXISTING, 0, 0);
cmSystemToolsWindowsHandle hTo =
CreateFileW(cmsys::Encoding::ToWide(toFile).c_str(),
GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, 0);
if(!hFrom || !hTo)
{
return false;
}
FILETIME timeCreation;
FILETIME timeLastAccess;
FILETIME timeLastWrite;
if(!GetFileTime(hFrom, &timeCreation, &timeLastAccess, &timeLastWrite))
{
return false;
}
if(!SetFileTime(hTo, &timeCreation, &timeLastAccess, &timeLastWrite))
{
return false;
}
#else
struct stat fromStat;
if(stat(fromFile, &fromStat) < 0)
{
return false;
}
struct utimbuf buf;
buf.actime = fromStat.st_atime;
buf.modtime = fromStat.st_mtime;
if(utime(toFile, &buf) < 0)
{
return false;
}
#endif
return true;
}
//----------------------------------------------------------------------------
cmSystemToolsFileTime* cmSystemTools::FileTimeNew()
{
return new cmSystemToolsFileTime;
}
//----------------------------------------------------------------------------
void cmSystemTools::FileTimeDelete(cmSystemToolsFileTime* t)
{
delete t;
}
//----------------------------------------------------------------------------
bool cmSystemTools::FileTimeGet(const char* fname, cmSystemToolsFileTime* t)
{
#if defined(_WIN32) && !defined(__CYGWIN__)
cmSystemToolsWindowsHandle h =
CreateFileW(cmsys::Encoding::ToWide(fname).c_str(),
GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0);
if(!h)
{
return false;
}
if(!GetFileTime(h, &t->timeCreation, &t->timeLastAccess, &t->timeLastWrite))
{
return false;
}
#else
struct stat st;
if(stat(fname, &st) < 0)
{
return false;
}
t->timeBuf.actime = st.st_atime;
t->timeBuf.modtime = st.st_mtime;
#endif
return true;
}
//----------------------------------------------------------------------------
bool cmSystemTools::FileTimeSet(const char* fname, cmSystemToolsFileTime* t)
{
#if defined(_WIN32) && !defined(__CYGWIN__)
cmSystemToolsWindowsHandle h =
CreateFileW(cmsys::Encoding::ToWide(fname).c_str(),
GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, 0);
if(!h)
{
return false;
}
if(!SetFileTime(h, &t->timeCreation, &t->timeLastAccess, &t->timeLastWrite))
{
return false;
}
#else
if(utime(fname, &t->timeBuf) < 0)
{
return false;
}
#endif
return true;
}
//----------------------------------------------------------------------------
#ifdef _WIN32
# ifndef CRYPT_SILENT
# define CRYPT_SILENT 0x40 /* Not defined by VS 6 version of header. */
# endif
static int WinCryptRandom(void* data, size_t size)
{
int result = 0;
HCRYPTPROV hProvider = 0;
if(CryptAcquireContextW(&hProvider, 0, 0, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT | CRYPT_SILENT))
{
result = CryptGenRandom(hProvider, (DWORD)size, (BYTE*)data)? 1:0;
CryptReleaseContext(hProvider, 0);
}
return result;
}
#endif
//----------------------------------------------------------------------------
unsigned int cmSystemTools::RandomSeed()
{
#if defined(_WIN32) && !defined(__CYGWIN__)
unsigned int seed = 0;
// Try using a real random source.
if(WinCryptRandom(&seed, sizeof(seed)))
{
return seed;
}
// Fall back to the time and pid.
FILETIME ft;
GetSystemTimeAsFileTime(&ft);
unsigned int t1 = static_cast<unsigned int>(ft.dwHighDateTime);
unsigned int t2 = static_cast<unsigned int>(ft.dwLowDateTime);
unsigned int pid = static_cast<unsigned int>(GetCurrentProcessId());
return t1 ^ t2 ^ pid;
#else
union
{
unsigned int integer;
char bytes[sizeof(unsigned int)];
} seed;
// Try using a real random source.
cmsys::ifstream fin("/dev/urandom");
if(fin && fin.read(seed.bytes, sizeof(seed)) &&
fin.gcount() == sizeof(seed))
{
return seed.integer;
}
// Fall back to the time and pid.
struct timeval t;
gettimeofday(&t, 0);
unsigned int pid = static_cast<unsigned int>(getpid());
unsigned int tv_sec = static_cast<unsigned int>(t.tv_sec);
unsigned int tv_usec = static_cast<unsigned int>(t.tv_usec);
// Since tv_usec never fills more than 11 bits we shift it to fill
// in the slow-changing high-order bits of tv_sec.
return tv_sec ^ (tv_usec << 21) ^ pid;
#endif
}
//----------------------------------------------------------------------------
static std::string cmSystemToolsCMakeCommand;
static std::string cmSystemToolsCTestCommand;
static std::string cmSystemToolsCPackCommand;
static std::string cmSystemToolsCMakeCursesCommand;
static std::string cmSystemToolsCMakeGUICommand;
static std::string cmSystemToolsCMakeRoot;
void cmSystemTools::FindCMakeResources(const char* argv0)
{
std::string exe_dir;
#if defined(_WIN32) && !defined(__CYGWIN__)
(void)argv0; // ignore this on windows
wchar_t modulepath[_MAX_PATH];
::GetModuleFileNameW(NULL, modulepath, sizeof(modulepath));
exe_dir =
cmSystemTools::GetFilenamePath(cmsys::Encoding::ToNarrow(modulepath));
#elif defined(__APPLE__)
(void)argv0; // ignore this on OS X
# define CM_EXE_PATH_LOCAL_SIZE 16384
char exe_path_local[CM_EXE_PATH_LOCAL_SIZE];
# if defined(MAC_OS_X_VERSION_10_3) && !defined(MAC_OS_X_VERSION_10_4)
unsigned long exe_path_size = CM_EXE_PATH_LOCAL_SIZE;
# else
uint32_t exe_path_size = CM_EXE_PATH_LOCAL_SIZE;
# endif
# undef CM_EXE_PATH_LOCAL_SIZE
char* exe_path = exe_path_local;
if(_NSGetExecutablePath(exe_path, &exe_path_size) < 0)
{
exe_path = (char*)malloc(exe_path_size);
_NSGetExecutablePath(exe_path, &exe_path_size);
}
exe_dir =
cmSystemTools::GetFilenamePath(
cmSystemTools::GetRealPath(exe_path));
if(exe_path != exe_path_local)
{
free(exe_path);
}
if(cmSystemTools::GetFilenameName(exe_dir) == "MacOS")
{
// The executable is inside an application bundle.
// Look for ../bin (install tree) and then fall back to
// ../../../bin (build tree).
exe_dir = cmSystemTools::GetFilenamePath(exe_dir);
if(cmSystemTools::FileExists((exe_dir+"/bin/cmake").c_str()))
{
exe_dir += "/bin";
}
else
{
exe_dir = cmSystemTools::GetFilenamePath(exe_dir);
exe_dir = cmSystemTools::GetFilenamePath(exe_dir);
}
}
#else
std::string errorMsg;
std::string exe;
if(cmSystemTools::FindProgramPath(argv0, exe, errorMsg))
{
// remove symlinks
exe = cmSystemTools::GetRealPath(exe);
exe_dir =
cmSystemTools::GetFilenamePath(exe);
}
else
{
// ???
}
#endif
cmSystemToolsCMakeCommand = exe_dir;
cmSystemToolsCMakeCommand += "/cmake";
cmSystemToolsCMakeCommand += cmSystemTools::GetExecutableExtension();
#ifndef CMAKE_BUILD_WITH_CMAKE
// The bootstrap cmake does not provide the other tools,
// so use the directory where they are about to be built.
exe_dir = CMAKE_BOOTSTRAP_BINARY_DIR "/bin";
#endif
cmSystemToolsCTestCommand = exe_dir;
cmSystemToolsCTestCommand += "/ctest";
cmSystemToolsCTestCommand += cmSystemTools::GetExecutableExtension();
cmSystemToolsCPackCommand = exe_dir;
cmSystemToolsCPackCommand += "/cpack";
cmSystemToolsCPackCommand += cmSystemTools::GetExecutableExtension();
cmSystemToolsCMakeGUICommand = exe_dir;
cmSystemToolsCMakeGUICommand += "/cmake-gui";
cmSystemToolsCMakeGUICommand += cmSystemTools::GetExecutableExtension();
if(!cmSystemTools::FileExists(cmSystemToolsCMakeGUICommand.c_str()))
{
cmSystemToolsCMakeGUICommand = "";
}
cmSystemToolsCMakeCursesCommand = exe_dir;
cmSystemToolsCMakeCursesCommand += "/ccmake";
cmSystemToolsCMakeCursesCommand += cmSystemTools::GetExecutableExtension();
if(!cmSystemTools::FileExists(cmSystemToolsCMakeCursesCommand.c_str()))
{
cmSystemToolsCMakeCursesCommand = "";
}
#ifdef CMAKE_BUILD_WITH_CMAKE
// Install tree has "<prefix>/bin/cmake" and "<prefix><CMAKE_DATA_DIR>".
std::string dir = cmSystemTools::GetFilenamePath(exe_dir);
cmSystemToolsCMakeRoot = dir + CMAKE_DATA_DIR;
if(!cmSystemTools::FileExists(
(cmSystemToolsCMakeRoot+"/Modules/CMake.cmake").c_str()))
{
// Build tree has "<build>/bin[/<config>]/cmake" and
// "<build>/CMakeFiles/CMakeSourceDir.txt".
std::string src_dir_txt = dir + "/CMakeFiles/CMakeSourceDir.txt";
cmsys::ifstream fin(src_dir_txt.c_str());
std::string src_dir;
if(fin && cmSystemTools::GetLineFromStream(fin, src_dir) &&
cmSystemTools::FileIsDirectory(src_dir))
{
cmSystemToolsCMakeRoot = src_dir;
}
else
{
dir = cmSystemTools::GetFilenamePath(dir);
src_dir_txt = dir + "/CMakeFiles/CMakeSourceDir.txt";
cmsys::ifstream fin2(src_dir_txt.c_str());
if(fin2 && cmSystemTools::GetLineFromStream(fin2, src_dir) &&
cmSystemTools::FileIsDirectory(src_dir))
{
cmSystemToolsCMakeRoot = src_dir;
}
}
}
#else
// Bootstrap build knows its source.
cmSystemToolsCMakeRoot = CMAKE_BOOTSTRAP_SOURCE_DIR;
#endif
}
//----------------------------------------------------------------------------
std::string const& cmSystemTools::GetCMakeCommand()
{
return cmSystemToolsCMakeCommand;
}
//----------------------------------------------------------------------------
std::string const& cmSystemTools::GetCTestCommand()
{
return cmSystemToolsCTestCommand;
}
//----------------------------------------------------------------------------
std::string const& cmSystemTools::GetCPackCommand()
{
return cmSystemToolsCPackCommand;
}
//----------------------------------------------------------------------------
std::string const& cmSystemTools::GetCMakeCursesCommand()
{
return cmSystemToolsCMakeCursesCommand;
}
//----------------------------------------------------------------------------
std::string const& cmSystemTools::GetCMakeGUICommand()
{
return cmSystemToolsCMakeGUICommand;
}
//----------------------------------------------------------------------------
std::string const& cmSystemTools::GetCMakeRoot()
{
return cmSystemToolsCMakeRoot;
}
//----------------------------------------------------------------------------
void cmSystemTools::MakefileColorEcho(int color, const char* message,
bool newline, bool enabled)
{
// On some platforms (an MSYS prompt) cmsysTerminal may not be able
// to determine whether the stream is displayed on a tty. In this
// case it assumes no unless we tell it otherwise. Since we want
// color messages to be displayed for users we will assume yes.
// However, we can test for some situations when the answer is most
// likely no.
int assumeTTY = cmsysTerminal_Color_AssumeTTY;
if(cmSystemTools::GetEnv("DART_TEST_FROM_DART") ||
cmSystemTools::GetEnv("DASHBOARD_TEST_FROM_CTEST") ||
cmSystemTools::GetEnv("CTEST_INTERACTIVE_DEBUG_MODE"))
{
// Avoid printing color escapes during dashboard builds.
assumeTTY = 0;
}
if(enabled)
{
// Print with color. Delay the newline until later so that
// all color restore sequences appear before it.
cmsysTerminal_cfprintf(color | assumeTTY, stdout, "%s", message);
}
else
{
// Color is disabled. Print without color.
fprintf(stdout, "%s", message);
}
if(newline)
{
fprintf(stdout, "\n");
}
}
//----------------------------------------------------------------------------
bool cmSystemTools::GuessLibrarySOName(std::string const& fullPath,
std::string& soname)
{
// For ELF shared libraries use a real parser to get the correct
// soname.
#if defined(CMAKE_USE_ELF_PARSER)
cmELF elf(fullPath.c_str());
if(elf)
{
return elf.GetSOName(soname);
}
#endif
// If the file is not a symlink we have no guess for its soname.
if(!cmSystemTools::FileIsSymlink(fullPath))
{
return false;
}
if(!cmSystemTools::ReadSymlink(fullPath, soname))
{
return false;
}
// If the symlink has a path component we have no guess for the soname.
if(!cmSystemTools::GetFilenamePath(soname).empty())
{
return false;
}
// If the symlink points at an extended version of the same name
// assume it is the soname.
std::string name = cmSystemTools::GetFilenameName(fullPath);
if(soname.length() > name.length() &&
soname.substr(0, name.length()) == name)
{
return true;
}
return false;
}
//----------------------------------------------------------------------------
bool cmSystemTools::GuessLibraryInstallName(std::string const& fullPath,
std::string& soname)
{
#if defined(CMAKE_USE_MACH_PARSER)
cmMachO macho(fullPath.c_str());
if(macho)
{
return macho.GetInstallName(soname);
}
#else
(void)fullPath;
(void)soname;
#endif
return false;
}
//----------------------------------------------------------------------------
#if defined(CMAKE_USE_ELF_PARSER)
std::string::size_type cmSystemToolsFindRPath(std::string const& have,
std::string const& want)
{
// Search for the desired rpath.
std::string::size_type pos = have.find(want);
// If the path is not present we are done.
if(pos == std::string::npos)
{
return pos;
}
// Build a regex to match a properly separated path instance.
std::string regex_str = "(^|:)(";
for(std::string::const_iterator i = want.begin(); i != want.end(); ++i)
{
int ch = *i;
if(!(('a' <= ch && ch <= 'z') ||
('A' <= ch && ch <= 'Z') ||
('0' <= ch && ch <= '9')))
{
// Escape the non-alphanumeric character.
regex_str += "\\";
}
// Store the character.
regex_str.append(1, static_cast<char>(ch));
}
regex_str += ")(:|$)";
// Look for the separated path.
cmsys::RegularExpression regex(regex_str.c_str());
if(regex.find(have))
{
// Return the position of the path portion.
return regex.start(2);
}
else
{
// The desired rpath was not found.
return std::string::npos;
}
}
#endif
#if defined(CMAKE_USE_ELF_PARSER)
struct cmSystemToolsRPathInfo
{
unsigned long Position;
unsigned long Size;
std::string Name;
std::string Value;
};
#endif
//----------------------------------------------------------------------------
bool cmSystemTools::ChangeRPath(std::string const& file,
std::string const& oldRPath,
std::string const& newRPath,
std::string* emsg,
bool* changed)
{
#if defined(CMAKE_USE_ELF_PARSER)
if(changed)
{
*changed = false;
}
int rp_count = 0;
cmSystemToolsRPathInfo rp[2];
{
// Parse the ELF binary.
cmELF elf(file.c_str());
// Get the RPATH and RUNPATH entries from it.
int se_count = 0;
cmELF::StringEntry const* se[2] = {0, 0};
const char* se_name[2] = {0, 0};
if(cmELF::StringEntry const* se_rpath = elf.GetRPath())
{
se[se_count] = se_rpath;
se_name[se_count] = "RPATH";
++se_count;
}
if(cmELF::StringEntry const* se_runpath = elf.GetRunPath())
{
se[se_count] = se_runpath;
se_name[se_count] = "RUNPATH";
++se_count;
}
if(se_count == 0)
{
if(newRPath.empty())
{
// The new rpath is empty and there is no rpath anyway so it is
// okay.
return true;
}
else
{
if(emsg)
{
*emsg = "No valid ELF RPATH or RUNPATH entry exists in the file; ";
*emsg += elf.GetErrorMessage();
}
return false;
}
}
for(int i=0; i < se_count; ++i)
{
// If both RPATH and RUNPATH refer to the same string literal it
// needs to be changed only once.
if(rp_count && rp[0].Position == se[i]->Position)
{
continue;
}
// Make sure the current rpath contains the old rpath.
std::string::size_type pos =
cmSystemToolsFindRPath(se[i]->Value, oldRPath);
if(pos == std::string::npos)
{
// If it contains the new rpath instead then it is okay.
if(cmSystemToolsFindRPath(se[i]->Value, newRPath) != std::string::npos)
{
continue;
}
if(emsg)
{
std::ostringstream e;
e << "The current " << se_name[i] << " is:\n"
<< " " << se[i]->Value << "\n"
<< "which does not contain:\n"
<< " " << oldRPath << "\n"
<< "as was expected.";
*emsg = e.str();
}
return false;
}
// Store information about the entry in the file.
rp[rp_count].Position = se[i]->Position;
rp[rp_count].Size = se[i]->Size;
rp[rp_count].Name = se_name[i];
// Construct the new value which preserves the part of the path
// not being changed.
rp[rp_count].Value = se[i]->Value.substr(0, pos);
rp[rp_count].Value += newRPath;
rp[rp_count].Value += se[i]->Value.substr(pos+oldRPath.length(),
oldRPath.npos);
// Make sure there is enough room to store the new rpath and at
// least one null terminator.
if(rp[rp_count].Size < rp[rp_count].Value.length()+1)
{
if(emsg)
{
*emsg = "The replacement path is too long for the ";
*emsg += se_name[i];
*emsg += " entry.";
}
return false;
}
// This entry is ready for update.
++rp_count;
}
}
// If no runtime path needs to be changed, we are done.
if(rp_count == 0)
{
return true;
}
{
// Open the file for update.
cmsys::ofstream f(file.c_str(),
std::ios::in | std::ios::out | std::ios::binary);
if(!f)
{
if(emsg)
{
*emsg = "Error opening file for update.";
}
return false;
}
// Store the new RPATH and RUNPATH strings.
for(int i=0; i < rp_count; ++i)
{
// Seek to the RPATH position.
if(!f.seekp(rp[i].Position))
{
if(emsg)
{
*emsg = "Error seeking to ";
*emsg += rp[i].Name;
*emsg += " position.";
}
return false;
}
// Write the new rpath. Follow it with enough null terminators to
// fill the string table entry.
f << rp[i].Value;
for(unsigned long j=rp[i].Value.length(); j < rp[i].Size; ++j)
{
f << '\0';
}
// Make sure it wrote correctly.
if(!f)
{
if(emsg)
{
*emsg = "Error writing the new ";
*emsg += rp[i].Name;
*emsg += " string to the file.";
}
return false;
}
}
}
// Everything was updated successfully.
if(changed)
{
*changed = true;
}
return true;
#else
(void)file;
(void)oldRPath;
(void)newRPath;
(void)emsg;
(void)changed;
return false;
#endif
}
//----------------------------------------------------------------------------
bool cmSystemTools::VersionCompare(cmSystemTools::CompareOp op,
const char* lhss, const char* rhss)
{
const char *endl = lhss;
const char *endr = rhss;
unsigned long lhs, rhs;
while (((*endl >= '0') && (*endl <= '9')) ||
((*endr >= '0') && (*endr <= '9')))
{
// Do component-wise comparison.
lhs = strtoul(endl, const_cast<char**>(&endl), 10);
rhs = strtoul(endr, const_cast<char**>(&endr), 10);
if(lhs < rhs)
{
// lhs < rhs, so true if operation is LESS
return op == cmSystemTools::OP_LESS;
}
else if(lhs > rhs)
{
// lhs > rhs, so true if operation is GREATER
return op == cmSystemTools::OP_GREATER;
}
if (*endr == '.')
{
endr++;
}
if (*endl == '.')
{
endl++;
}
}
// lhs == rhs, so true if operation is EQUAL
return op == cmSystemTools::OP_EQUAL;
}
//----------------------------------------------------------------------------
bool cmSystemTools::RemoveRPath(std::string const& file, std::string* emsg,
bool* removed)
{
#if defined(CMAKE_USE_ELF_PARSER)
if(removed)
{
*removed = false;
}
int zeroCount = 0;
unsigned long zeroPosition[2] = {0,0};
unsigned long zeroSize[2] = {0,0};
unsigned long bytesBegin = 0;
std::vector<char> bytes;
{
// Parse the ELF binary.
cmELF elf(file.c_str());
// Get the RPATH and RUNPATH entries from it and sort them by index
// in the dynamic section header.
int se_count = 0;
cmELF::StringEntry const* se[2] = {0, 0};
if(cmELF::StringEntry const* se_rpath = elf.GetRPath())
{
se[se_count++] = se_rpath;
}
if(cmELF::StringEntry const* se_runpath = elf.GetRunPath())
{
se[se_count++] = se_runpath;
}
if(se_count == 0)
{
// There is no RPATH or RUNPATH anyway.
return true;
}
if(se_count == 2 && se[1]->IndexInSection < se[0]->IndexInSection)
{
std::swap(se[0], se[1]);
}
// Get the size of the dynamic section header.
unsigned int count = elf.GetDynamicEntryCount();
if(count == 0)
{
// This should happen only for invalid ELF files where a DT_NULL
// appears before the end of the table.
if(emsg)
{
*emsg = "DYNAMIC section contains a DT_NULL before the end.";
}
return false;
}
// Save information about the string entries to be zeroed.
zeroCount = se_count;
for(int i=0; i < se_count; ++i)
{
zeroPosition[i] = se[i]->Position;
zeroSize[i] = se[i]->Size;
}
// Get the range of file positions corresponding to each entry and
// the rest of the table after them.
unsigned long entryBegin[3] = {0,0,0};
unsigned long entryEnd[2] = {0,0};
for(int i=0; i < se_count; ++i)
{
entryBegin[i] = elf.GetDynamicEntryPosition(se[i]->IndexInSection);
entryEnd[i] = elf.GetDynamicEntryPosition(se[i]->IndexInSection+1);
}
entryBegin[se_count] = elf.GetDynamicEntryPosition(count);
// The data are to be written over the old table entries starting at
// the first one being removed.
bytesBegin = entryBegin[0];
unsigned long bytesEnd = entryBegin[se_count];
// Allocate a buffer to hold the part of the file to be written.
// Initialize it with zeros.
bytes.resize(bytesEnd - bytesBegin, 0);
// Read the part of the DYNAMIC section header that will move.
// The remainder of the buffer will be left with zeros which
// represent a DT_NULL entry.
char* data = &bytes[0];
for(int i=0; i < se_count; ++i)
{
// Read data between the entries being removed.
unsigned long sz = entryBegin[i+1] - entryEnd[i];
if(sz > 0 && !elf.ReadBytes(entryEnd[i], sz, data))
{
if(emsg)
{
*emsg = "Failed to read DYNAMIC section header.";
}
return false;
}
data += sz;
}
}
// Open the file for update.
cmsys::ofstream f(file.c_str(),
std::ios::in | std::ios::out | std::ios::binary);
if(!f)
{
if(emsg)
{
*emsg = "Error opening file for update.";
}
return false;
}
// Write the new DYNAMIC table header.
if(!f.seekp(bytesBegin))
{
if(emsg)
{
*emsg = "Error seeking to DYNAMIC table header for RPATH.";
}
return false;
}
if(!f.write(&bytes[0], bytes.size()))
{
if(emsg)
{
*emsg = "Error replacing DYNAMIC table header.";
}
return false;
}
// Fill the RPATH and RUNPATH strings with zero bytes.
for(int i=0; i < zeroCount; ++i)
{
if(!f.seekp(zeroPosition[i]))
{
if(emsg)
{
*emsg = "Error seeking to RPATH position.";
}
return false;
}
for(unsigned long j=0; j < zeroSize[i]; ++j)
{
f << '\0';
}
if(!f)
{
if(emsg)
{
*emsg = "Error writing the empty rpath string to the file.";
}
return false;
}
}
// Everything was updated successfully.
if(removed)
{
*removed = true;
}
return true;
#else
(void)file;
(void)emsg;
(void)removed;
return false;
#endif
}
//----------------------------------------------------------------------------
bool cmSystemTools::CheckRPath(std::string const& file,
std::string const& newRPath)
{
#if defined(CMAKE_USE_ELF_PARSER)
// Parse the ELF binary.
cmELF elf(file.c_str());
// Get the RPATH or RUNPATH entry from it.
cmELF::StringEntry const* se = elf.GetRPath();
if(!se)
{
se = elf.GetRunPath();
}
// Make sure the current rpath contains the new rpath.
if(newRPath.empty())
{
if(!se)
{
return true;
}
}
else
{
if(se &&
cmSystemToolsFindRPath(se->Value, newRPath) != std::string::npos)
{
return true;
}
}
return false;
#else
(void)file;
(void)newRPath;
return false;
#endif
}
//----------------------------------------------------------------------------
bool cmSystemTools::RepeatedRemoveDirectory(const char* dir)
{
// Windows sometimes locks files temporarily so try a few times.
for(int i = 0; i < 10; ++i)
{
if(cmSystemTools::RemoveADirectory(dir))
{
return true;
}
cmSystemTools::Delay(100);
}
return false;
}
//----------------------------------------------------------------------------
std::vector<std::string> cmSystemTools::tokenize(const std::string& str,
const std::string& sep)
{
std::vector<std::string> tokens;
std::string::size_type tokend = 0;
do
{
std::string::size_type tokstart=str.find_first_not_of(sep, tokend);
if (tokstart==std::string::npos)
{
break; // no more tokens
}
tokend=str.find_first_of(sep,tokstart);
if (tokend==std::string::npos)
{
tokens.push_back(str.substr(tokstart));
}
else
{
tokens.push_back(str.substr(tokstart,tokend-tokstart));
}
} while (tokend!=std::string::npos);
if (tokens.empty())
{
tokens.push_back("");
}
return tokens;
}
//----------------------------------------------------------------------------
bool cmSystemTools::StringToLong(const char* str, long* value)
{
errno = 0;
char *endp;
*value = strtol(str, &endp, 10);
return (*endp == '\0') && (endp != str) && (errno == 0);
}
