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khanat-opennel-code/code/nel/src/misc/common.cpp

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initial version
2010-05-06 00:08:41 +00:00
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "stdmisc.h"
#ifdef NL_OS_WINDOWS
# define NOMINMAX
# include <windows.h>
# include <io.h>
# include <tchar.h>
#elif defined NL_OS_UNIX
# include <unistd.h>
# include <cstring>
# include <cerrno>
# include <csignal>
# include <pthread.h>
# include <sched.h>
#endif
#include "nel/misc/command.h"
#include "nel/misc/path.h"
using namespace std;
#ifdef NL_OS_WINDOWS
# pragma message( " " )
# if FINAL_VERSION
# pragma message( "************************" )
# pragma message( "**** FINAL_VERSION *****" )
# pragma message( "************************" )
# else
# pragma message( "Not using FINAL_VERSION")
# endif // FINAL_VERSION
# ifdef ASSERT_THROW_EXCEPTION
# pragma message( "nlassert throws exceptions" )
# else
# pragma message( "nlassert does not throw exceptions" )
# endif // ASSERT_THROW_EXCEPTION
# ifdef _STLPORT_VERSION
# pragma message( "Using STLport" )
# else
# pragma message( "Using standard STL" )
# endif // _STLPORT_VERSION
# pragma message( " " )
# if (_MSC_VER >= 1200) && (_MSC_VER < 1400) && (WINVER < 0x0500)
//Using VC7 and later lib, need this to compile on VC6
extern "C" long _ftol2( double dblSource ) { return _ftol( dblSource ); }
# endif
#endif // NL_OS_WINDOWS
namespace NLMISC
{
/*
* Portable Sleep() function that suspends the execution of the calling thread for a number of milliseconds.
* Note: the resolution of the timer is system-dependant and may be more than 1 millisecond.
*/
void nlSleep( uint32 ms )
{
#ifdef NL_OS_WINDOWS
#ifdef NL_DEBUG
// a Sleep(0) "block" the other thread in DEBUG/_CONSOLE, so we clamp
ms = max(ms, (uint32)1);
#endif
Sleep( ms );
#elif defined NL_OS_UNIX
//usleep( ms*1000 ); // resolution: 20 ms!
timespec ts;
ts.tv_sec = ms/1000;
ts.tv_nsec = (ms%1000)*1000000;
int res;
do
{
res = nanosleep( &ts, &ts ); // resolution: 10 ms (with common scheduling policy)
}
while ( (res != 0) && (errno==EINTR) );
#endif
}
/*
* Returns Thread Id (note: on Linux, Process Id is the same as the Thread Id)
*/
Changed: #872 threadid is now in size_t. patch by rti
2010-05-13 17:00:29 +00:00
size_t getThreadId()
initial version
2010-05-06 00:08:41 +00:00
{
#ifdef NL_OS_WINDOWS
return GetCurrentThreadId();
#elif defined NL_OS_UNIX
Changed: #872 threadid is now in size_t. patch by rti
2010-05-13 17:00:29 +00:00
return size_t(pthread_self());
initial version
2010-05-06 00:08:41 +00:00
// doesnt work on linux kernel 2.6 return getpid();
#endif
}
/*
* Returns a readable string from a vector of bytes. '\0' are replaced by ' '
*/
string stringFromVector( const vector<uint8>& v, bool limited )
{
string s;
if (!v.empty())
{
int size = v.size ();
if (limited && size > 1000)
{
string middle = "...<buf too big,skip middle part>...";
s.resize (1000 + middle.size());
memcpy (&*s.begin(), &*v.begin(), 500);
memcpy (&*s.begin()+500, &*middle.begin(), middle.size());
memcpy (&*s.begin()+500+middle.size(), &*v.begin()+size-500, 500);
}
else
{
s.resize (size);
memcpy( &*s.begin(), &*v.begin(), v.size() );
}
// Replace '\0' characters
string::iterator is;
for ( is=s.begin(); is!=s.end(); ++is )
{
// remplace non printable char and % with '?' chat
if ( ! isprint((uint8)(*is)) || (*is) == '%')
{
(*is) = '?';
}
}
}
/*
if ( ! v.empty() )
{
// Copy contents
s.resize( v.size() );
memcpy( &*s.begin(), &*v.begin(), v.size() );
// Replace '\0' characters
string::iterator is;
for ( is=s.begin(); is!=s.end(); ++is )
{
// remplace non printable char and % with '?' chat
if ( ! isprint((*is)) || (*is) == '%')
{
(*is) = '?';
}
}
}
*/ return s;
}
sint smprintf( char *buffer, size_t count, const char *format, ... )
{
sint ret;
va_list args;
va_start( args, format );
ret = vsnprintf( buffer, count, format, args );
if ( ret == -1 )
{
buffer[count-1] = '\0';
}
va_end( args );
return( ret );
}
sint64 atoiInt64 (const char *ident, sint64 base)
{
sint64 number = 0;
bool neg = false;
// NULL string
nlassert (ident != NULL);
// empty string
if (*ident == '\0') goto end;
// + sign
if (*ident == '+') ident++;
// - sign
if (*ident == '-') { neg = true; ident++; }
while (*ident != '\0')
{
if (isdigit((unsigned char)*ident))
{
number *= base;
number += (*ident)-'0';
}
else if (base > 10 && islower((unsigned char)*ident))
{
number *= base;
number += (*ident)-'a'+10;
}
else if (base > 10 && isupper((unsigned char)*ident))
{
number *= base;
number += (*ident)-'A'+10;
}
else
{
goto end;
}
ident++;
}
end:
if (neg) number = -number;
return number;
}
void itoaInt64 (sint64 number, char *str, sint64 base)
{
str[0] = '\0';
char b[256];
if(!number)
{
str[0] = '0';
str[1] = '\0';
return;
}
memset(b,'\0',255);
memset(b,'0',64);
sint n;
sint64 x = number;
if (x < 0) x = -x;
char baseTable[] = "0123456789abcdefghijklmnopqrstuvwyz";
for(n = 0; n < 64; n ++)
{
sint num = (sint)(x % base);
b[64 - n] = baseTable[num];
if(!x)
{
int k;
int j = 0;
if (number < 0)
{
str[j++] = '-';
}
for(k = 64 - n + 1; k <= 64; k++)
{
str[j ++] = b[k];
}
str[j] = '\0';
break;
}
x /= base;
}
}
uint raiseToNextPowerOf2(uint v)
{
uint res=1;
while(res<v)
res<<=1;
return res;
}
uint getPowerOf2(uint v)
{
uint res=1;
uint ret=0;
while(res<v)
{
ret++;
res<<=1;
}
return ret;
}
bool isPowerOf2(sint32 v)
{
while(v)
{
if(v&1)
{
v>>=1;
if(v)
return false;
}
else
v>>=1;
}
return true;
}
string bytesToHumanReadable (const std::string &bytes)
{
return bytesToHumanReadable (atoiInt64(bytes.c_str()));
}
string bytesToHumanReadable (uint64 bytes)
{
static const char *divTable[]= { "B", "KB", "MB", "GB", "TB" };
uint div = 0;
uint64 res = bytes;
uint64 newres = res;
for(;;)
{
newres /= 1024;
if(newres < 8 || div > 3)
break;
div++;
res = newres;
}
return toString ("%"NL_I64"u%s", res, divTable[div]);
}
uint32 humanReadableToBytes (const string &str)
{
uint32 res;
if(str.empty())
return 0;
// not a number
if(str[0]<'0' || str[0]>'9')
return 0;
res = atoi (str.c_str());
if(str[str.size()-1] == 'B')
{
if (str.size()<3)
return res;
// there s no break and it's **normal**
switch (str[str.size()-2])
{
case 'G': res *= 1024;
case 'M': res *= 1024;
case 'K': res *= 1024;
default: ;
}
}
return res;
}
NLMISC_CATEGORISED_COMMAND(nel,btohr, "Convert a bytes number into an human readable number", "<int>")
{
if (args.size() != 1)
return false;
log.displayNL("%s -> %s", args[0].c_str(), bytesToHumanReadable(args[0]).c_str());
return true;
}
NLMISC_CATEGORISED_COMMAND(nel,hrtob, "Convert a human readable number into a bytes number", "<hr>")
{
if (args.size() != 1)
return false;
log.displayNL("%s -> %u", args[0].c_str(), humanReadableToBytes(args[0]));
return true;
}
string secondsToHumanReadable (uint32 time)
{
static const char *divTable[] = { "s", "mn", "h", "d" };
static uint divCoef[] = { 60, 60, 24 };
uint div = 0;
uint32 res = time;
uint32 newres = res;
for(;;)
{
if(div > 2)
break;
newres /= divCoef[div];
if(newres < 3)
break;
div++;
res = newres;
}
return toString ("%u%s", res, divTable[div]);
}
uint32 fromHumanReadable (const std::string &str)
{
if (str.size() == 0)
return 0;
uint32 val;
fromString(str, val);
switch (str[str.size()-1])
{
case 's': return val; // second
case 'n': return val*60; // minutes (mn)
case 'h': return val*60*60; // hour
case 'd': return val*60*60*24; // day
case 'b': // bytes
switch (str[str.size()-2])
{
case 'k': return val*1024;
case 'm': return val*1024*1024;
case 'g': return val*1024*1024*1024;
default : return val;
}
default: return val;
}
return 0;
}
NLMISC_CATEGORISED_COMMAND(nel,stohr, "Convert a second number into an human readable time", "<int>")
{
if (args.size() != 1)
return false;
uint32 seconds;
fromString(args[0], seconds);
log.displayNL("%s -> %s", args[0].c_str(), secondsToHumanReadable(seconds).c_str());
return true;
}
std::string toLower(const std::string &str)
{
string res;
res.reserve(str.size());
for(uint i = 0; i < str.size(); i++)
{
if( (str[i] >= 'A') && (str[i] <= 'Z') )
res += str[i] - 'A' + 'a';
else
res += str[i];
}
return res;
}
char toLower(const char ch)
{
if( (ch >= 'A') && (ch <= 'Z') )
{
return ch - 'A' + 'a';
}
else
{
return ch;
}
}
void toLower(char *str)
{
if (str == 0)
return;
while(*str != '\0')
{
if( (*str >= 'A') && (*str <= 'Z') )
{
*str = *str - 'A' + 'a';
}
str++;
}
}
std::string toUpper(const std::string &str)
{
string res;
res.reserve(str.size());
for(uint i = 0; i < str.size(); i++)
{
if( (str[i] >= 'a') && (str[i] <= 'z') )
res += str[i] - 'a' + 'A';
else
res += str[i];
}
return res;
}
void toUpper(char *str)
{
if (str == 0)
return;
while(*str != '\0')
{
if( (*str >= 'a') && (*str <= 'z') )
{
*str = *str - 'a' + 'A';
}
str++;
}
}
//
// Exceptions
//
Exception::Exception() : _Reason("Unknown Exception")
{
// nlinfo("Exception will be launched: %s", _Reason.c_str());
}
Exception::Exception(const std::string &reason) : _Reason(reason)
{
nlinfo("Exception will be launched: %s", _Reason.c_str());
}
Exception::Exception(const char *format, ...)
{
NLMISC_CONVERT_VARGS (_Reason, format, NLMISC::MaxCStringSize);
nlinfo("Exception will be launched: %s", _Reason.c_str());
}
const char *Exception::what() const throw()
{
return _Reason.c_str();
}
bool killProgram(uint32 pid)
{
#ifdef NL_OS_UNIX
int res = kill(pid, SIGKILL);
if(res == -1)
{
char *err = strerror (errno);
nlwarning("Failed to kill '%d' err %d: '%s'", pid, errno, err);
}
return res == 0;
/*#elif defined(NL_OS_WINDOWS)
// it doesn't work because pid != handle and i don't know how to kill a pid or know the real handle of another service (not -1)
int res = TerminateProcess((HANDLE)pid, 888);
LPVOID lpMsgBuf;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &lpMsgBuf, 0, NULL);
nlwarning("Failed to kill '%d' err %d: '%s'", pid, GetLastError (), lpMsgBuf);
LocalFree(lpMsgBuf);
return res != 0;
*/
#else
nlwarning("kill not implemented on this OS");
return false;
#endif
}
bool abortProgram(uint32 pid)
{
#ifdef NL_OS_UNIX
int res = kill(pid, SIGABRT);
if(res == -1)
{
char *err = strerror (errno);
nlwarning("Failed to abort '%d' err %d: '%s'", pid, errno, err);
}
return res == 0;
#else
nlwarning("abort not implemented on this OS");
return false;
#endif
}
bool launchProgram (const std::string &programName, const std::string &arguments)
{
#ifdef NL_OS_WINDOWS
STARTUPINFOA si;
PROCESS_INFORMATION pi;
memset(&si, 0, sizeof(si));
memset(&pi, 0, sizeof(pi));
si.cb = sizeof(si);
/* SECURITY_ATTRIBUTES sa;
sa.nLength = sizeof (sa);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = FALSE;
STARTUPINFO si;
si.cb = sizeof (si);
si.lpReserved = NULL;
si.lpDesktop = NULL;
si.lpTitle = NULL;
si.dwFlags = STARTF_USESHOWWINDOW;
si.cbReserved2 = 0;
si.wShowWindow = SW_MINIMIZE;
si.lpReserved2 = NULL;
PROCESS_INFORMATION pi;
*/
// Enable nlassert/nlstop to display the error reason & callstack
const TCHAR *SE_TRANSLATOR_IN_MAIN_MODULE = _T("NEL_SE_TRANS");
TCHAR envBuf [2];
if ( GetEnvironmentVariable( SE_TRANSLATOR_IN_MAIN_MODULE, envBuf, 2 ) != 0)
{
SetEnvironmentVariable( SE_TRANSLATOR_IN_MAIN_MODULE, NULL );
}
string arg = " " + arguments;
BOOL res = CreateProcessA(programName.c_str(), (char*)arg.c_str(), 0, 0, FALSE, CREATE_DEFAULT_ERROR_MODE | CREATE_NO_WINDOW, 0, 0, &si, &pi);
if (res)
{
//nldebug("LAUNCH: Successful launch '%s' with arg '%s'", programName.c_str(), arguments.c_str());
CloseHandle( pi.hProcess );
CloseHandle( pi.hThread );
return true;
}
else
{
LPVOID lpMsgBuf;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &lpMsgBuf, 0, NULL);
nlwarning("LAUNCH: Failed launched '%s' with arg '%s' err %d: '%s'", programName.c_str(), arguments.c_str(), GetLastError (), lpMsgBuf);
LocalFree(lpMsgBuf);
CloseHandle( pi.hProcess );
CloseHandle( pi.hThread );
}
#elif defined(NL_OS_UNIX)
static bool firstLaunchProgram = true;
if (firstLaunchProgram)
{
// The aim of this is to avoid defunct process.
//
// From "man signal":
//------
// According to POSIX (3.3.1.3) it is unspecified what happens when SIGCHLD is set to SIG_IGN. Here
// the BSD and SYSV behaviours differ, causing BSD software that sets the action for SIGCHLD to
// SIG_IGN to fail on Linux.
//------
//
// But it works fine on my GNU/Linux so I do this because it's easier :) and I don't know exactly
// what to do to be portable.
signal(SIGCHLD,SIG_IGN);
firstLaunchProgram = false;
}
// convert one arg into several args
vector<string> args;
string::size_type pos1 = 0, pos2 = 0;
do
{
pos1 = arguments.find_first_not_of (" ", pos2);
if (pos1 == string::npos) break;
pos2 = arguments.find_first_of (" ", pos1);
args.push_back (arguments.substr (pos1, pos2-pos1));
}
while (pos2 != string::npos);
// Store the size of each arg
vector<char *> argv(args.size()+2);
uint i = 0;
argv[i] = (char *)programName.c_str();
for (; i < args.size(); i++)
{
argv[i+1] = (char *) args[i].c_str();
}
argv[i+1] = NULL;
int status = vfork ();
/////////////////////////////////////////////////////////
/// WARNING : NO MORE INSTRCUTION AFTER VFORK !
/// READ VFORK manual
/////////////////////////////////////////////////////////
if (status == -1)
{
char *err = strerror (errno);
nlwarning("LAUNCH: Failed launched '%s' with arg '%s' err %d: '%s'", programName.c_str(), arguments.c_str(), errno, err);
}
else if (status == 0)
{
// Exec (the only allowed instruction after vfork)
status = execvp(programName.c_str(), &argv.front());
if (status == -1)
{
perror("Failed launched");
_exit(EXIT_FAILURE);
}
}
else
{
//nldebug("LAUNCH: Successful launch '%s' with arg '%s'", programName.c_str(), arguments.c_str());
return true;
}
#else
nlwarning ("LAUNCH: launchProgram() not implemented");
#endif
return false;
}
/*
* Display the bits (with 0 and 1) composing a byte (from right to left)
*/
void displayByteBits( uint8 b, uint nbits, sint beginpos, bool displayBegin, NLMISC::CLog *log )
{
string s1, s2;
sint i;
for ( i=nbits-1; i!=-1; --i )
{
s1 += ( (b >> i) & 1 ) ? '1' : '0';
}
log->displayRawNL( "%s", s1.c_str() );
if ( displayBegin )
{
for ( i=nbits; i>beginpos+1; --i )
{
s2 += " ";
}
s2 += "^";
log->displayRawNL( "%s beginpos=%u", s2.c_str(), beginpos );
}
}
//#define displayDwordBits(a,b,c)
/*
* Display the bits (with 0 and 1) composing a number (uint32) (from right to left)
*/
void displayDwordBits( uint32 b, uint nbits, sint beginpos, bool displayBegin, NLMISC::CLog *log )
{
string s1, s2;
sint i;
for ( i=nbits-1; i!=-1; --i )
{
s1 += ( (b >> i) & 1 ) ? '1' : '0';
}
log->displayRawNL( "%s", s1.c_str() );
if ( displayBegin )
{
for ( i=nbits; i>beginpos+1; --i )
{
s2 += " ";
}
s2 += "^";
log->displayRawNL( "%s beginpos=%u", s2.c_str(), beginpos );
}
}
int nlfseek64( FILE *stream, sint64 offset, int origin )
{
#ifdef NL_OS_WINDOWS
//
fpos_t pos64 = 0;
switch (origin)
{
case SEEK_CUR:
if (fgetpos(stream, &pos64) != 0)
return -1;
case SEEK_END:
pos64 = _filelengthi64(_fileno(stream));
if (pos64 == -1L)
return -1;
};
// Seek
pos64 += offset;
// Set the final position
return fsetpos (stream, &pos64);
#else // NL_OS_WINDOWS
// This code doesn't work under windows : fseek() implementation uses a signed 32 bits offset. What ever we do, it can't seek more than 2 Go.
// For the moment, i don't know if it works under linux for seek of more than 2 Go.
nlassert ((offset < SINT64_CONSTANT(2147483647)) && (offset > SINT64_CONSTANT(-2147483648)));
bool first = true;
do
{
// Get the size of the next fseek
sint nextSeek;
if (offset > 0)
nextSeek = (sint)std::min ((sint64)SINT64_CONSTANT(2147483647), offset);
else
nextSeek = (sint)std::max ((sint64)-SINT64_CONSTANT(2147483648), offset);
// Make a seek
int result = fseek ( stream, nextSeek, first?origin:SEEK_CUR );
if (result != 0)
return result;
// Remaining
offset -= nextSeek;
first = false;
}
while (offset);
return 0;
#endif // NL_OS_WINDOWS
}
sint64 nlftell64(FILE *stream)
{
#ifdef NL_OS_WINDOWS
fpos_t pos64 = 0;
if (fgetpos(stream, &pos64) == 0)
{
return (sint64) pos64;
}
else return -1;
#else
nlerror("Not implemented");
return -1;
#endif
}
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
/// Commands
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
NLMISC_CATEGORISED_COMMAND(nel, sleep, "Freeze the service for N seconds (for debug purpose)", "<N>")
{
if(args.size() != 1) return false;
sint32 n = atoi (args[0].c_str());
log.displayNL ("Sleeping during %d seconds", n);
nlSleep(n * 1000);
return true;
}
NLMISC_CATEGORISED_COMMAND(nel, system, "Execute the command line using system() function call (wait until the end of the command)", "<commandline>")
{
if(args.size() != 1) return false;
string cmd = args[0];
log.displayNL ("Executing '%s'", cmd.c_str());
system(cmd.c_str());
log.displayNL ("End of Execution of '%s'", cmd.c_str());
return true;
}
NLMISC_CATEGORISED_COMMAND(nel, launchProgram, "Execute the command line using launcProgram() function call (launch in background task without waiting the end of the execution)", "<programName> <arguments>")
{
if(args.size() != 2) return false;
string cmd = args[0];
string arg = args[1];
log.displayNL ("Executing '%s' with argument '%s'", cmd.c_str(), arg.c_str());
launchProgram(cmd, arg);
log.displayNL ("End of Execution of '%s' with argument '%s'", cmd.c_str(), arg.c_str());
return true;
}
NLMISC_CATEGORISED_COMMAND(nel, killProgram, "kill a program given the pid", "<pid>")
{
if(args.size() != 1) return false;
uint32 pid;
fromString(args[0], pid);
killProgram(pid);
return true;
}
#ifdef NL_OS_WINDOWS
LONG GetRegKey(HKEY key, LPCSTR subkey, LPSTR retdata)
{
HKEY hkey;
LONG retval = RegOpenKeyExA(key, subkey, 0, KEY_QUERY_VALUE, &hkey);
if (retval == ERROR_SUCCESS)
{
long datasize = MAX_PATH;
char data[MAX_PATH];
RegQueryValueA(hkey, NULL, data, &datasize);
lstrcpyA(retdata,data);
RegCloseKey(hkey);
}
return retval;
}
#endif // NL_OS_WINDOWS
bool openURL (const char *url)
{
#ifdef NL_OS_WINDOWS
char key[1024];
if (GetRegKey(HKEY_CLASSES_ROOT, ".html", key) == ERROR_SUCCESS)
{
lstrcatA(key, "\\shell\\open\\command");
if (GetRegKey(HKEY_CLASSES_ROOT,key,key) == ERROR_SUCCESS)
{
char *pos;
pos = strstr(key, "\"%1\"");
if (pos == NULL) { // No quotes found
pos = strstr(key, "%1"); // Check for %1, without quotes
if (pos == NULL) // No parameter at all...
pos = key+lstrlenA(key)-1;
else
*pos = '\0'; // Remove the parameter
}
else
*pos = '\0'; // Remove the parameter
lstrcatA(pos, " ");
lstrcatA(pos, url);
int res = WinExec(key,SW_SHOWDEFAULT);
return (res>31);
}
}
#elif defined(NL_OS_MAC)
return launchProgram("open", url);
#elif defined(NL_OS_UNIX)
return launchProgram("/etc/alternatives/x-www-browser", url);
#else
nlwarning("openURL() is not implemented for this OS");
#endif // NL_OS_WINDOWS
return false;
}
bool openDoc (const char *document)
{
#ifdef NL_OS_WINDOWS
string ext = CFile::getExtension (document);
char key[MAX_PATH + MAX_PATH];
// First try ShellExecute()
HINSTANCE result = ShellExecuteA(NULL, "open", document, NULL,NULL, SW_SHOWDEFAULT);
// If it failed, get the .htm regkey and lookup the program
if ((UINT)result <= HINSTANCE_ERROR)
{
if (GetRegKey(HKEY_CLASSES_ROOT, ext.c_str(), key) == ERROR_SUCCESS)
{
lstrcatA(key, "\\shell\\open\\command");
if (GetRegKey(HKEY_CLASSES_ROOT,key,key) == ERROR_SUCCESS)
{
char *pos;
pos = strstr(key, "\"%1\"");
if (pos == NULL) { // No quotes found
pos = strstr(key, "%1"); // Check for %1, without quotes
if (pos == NULL) // No parameter at all...
pos = key+lstrlenA(key)-1;
else
*pos = '\0'; // Remove the parameter
}
else
*pos = '\0'; // Remove the parameter
lstrcatA(pos, " ");
lstrcatA(pos, document);
int res = WinExec(key,SW_SHOWDEFAULT);
return (res>31);
}
}
}
else
return true;
#endif // NL_OS_WINDOWS
return false;
}
} // NLMISC
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