Program: gdcm
Module: $RCSfile: gdcmUtil.cxx,v $
Language: C++
- Date: $Date: 2004/11/16 02:54:35 $
- Version: $Revision: 1.64 $
+ Date: $Date: 2005/02/11 19:09:30 $
+ Version: $Revision: 1.136 $
Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
l'Image). All rights reserved. See Doc/License.txt or
#include "gdcmUtil.h"
#include "gdcmDebug.h"
+#include <iostream>
// For GetCurrentDate, GetCurrentTime
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+#include <sys/timeb.h>
+#else
+#include <sys/time.h>
+#endif
+
#include <stdarg.h> //only included in implementation file
#include <stdio.h> //only included in implementation file
-#include <unistd.h> // for gethostname
-#include <netdb.h> // for gethostbyname
+#if defined(_MSC_VER) || defined(__MINGW32__)
+ #include <winsock.h> // for gethostname and gethostbyname
+ #undef GetCurrentTime
+#else
+#ifndef __BORLANDC__
+ #include <unistd.h> // for gethostname
+ #include <netdb.h> // for gethostbyname
+#endif
+#endif
+
+// For GetMACAddress
+#ifdef _WIN32
+ #include <snmp.h>
+ #include <conio.h>
+#else
+ #include <unistd.h>
+ #include <stdlib.h>
+ #include <string.h>
+ #include <sys/types.h>
+#endif
+
+#ifdef CMAKE_HAVE_SYS_IOCTL_H
+ #include <sys/ioctl.h> // For SIOCGIFCONF on Linux
+#endif
+#ifdef CMAKE_HAVE_SYS_SOCKET_H
+ #include <sys/socket.h>
+#endif
+#ifdef CMAKE_HAVE_SYS_SOCKIO_H
+ #include <sys/sockio.h> // For SIOCGIFCONF on SunOS
+#endif
+#ifdef CMAKE_HAVE_NET_IF_H
+ #include <net/if.h>
+#endif
+#ifdef CMAKE_HAVE_NETINET_IN_H
+ #include <netinet/in.h> //For IPPROTO_IP
+#endif
+#ifdef CMAKE_HAVE_NET_IF_DL_H
+ #include <net/if_dl.h>
+#endif
+#if defined(CMAKE_HAVE_NET_IF_ARP_H) && defined(__sun)
+ // This is absolutely necessary on SunOS
+ #include <net/if_arp.h>
+#endif
+
+// For GetCurrentThreadID()
+#ifdef __linux__
+ #include <sys/types.h>
+ #include <linux/unistd.h>
+#endif
+#ifdef __sun
+ #include <thread.h>
+#endif
namespace gdcm
{
+//-------------------------------------------------------------------------
+const std::string Util::GDCM_UID = "1.2.826.0.1.3680043.2.1143";
+std::string Util::RootUID = GDCM_UID;
+//-------------------------------------------------------------------------
+// Public
/**
- * \ingroup Globals
* \brief Provide a better 'c++' approach for sprintf
* For example c code is:
- * sprintf(trash, "%04x|%04x", group , element);
+ * sprintf(trash, "%04x|%04x", group , elem);
*
- * c++ is
+ * c++ code is
* std::ostringstream buf;
* buf << std::right << std::setw(4) << std::setfill('0') << std::hex
* << group << "|" << std::right << std::setw(4) << std::setfill('0')
- * << std::hex << element;
+ * << std::hex << elem;
* buf.str();
+ *
+ * gdcm style code is
+ * Format("%04x|%04x", group , elem);
*/
-
-std::string Util::Format(const char* format, ...)
+std::string Util::Format(const char *format, ...)
{
char buffer[2048];
va_list args;
/**
- * \ingroup Globals
* \brief Because not available in C++ (?)
*/
-void Util::Tokenize (const std::string& str,
- std::vector<std::string>& tokens,
- const std::string& delimiters)
+void Util::Tokenize (const std::string &str,
+ std::vector<std::string> &tokens,
+ const std::string &delimiters)
{
std::string::size_type lastPos = str.find_first_not_of(delimiters,0);
std::string::size_type pos = str.find_first_of (delimiters,lastPos);
}
/**
- * \ingroup Globals
* \brief Because not available in C++ (?)
* Counts the number of occurences of a substring within a string
*/
-int Util::CountSubstring (const std::string& str,
- const std::string& subStr)
+int Util::CountSubstring (const std::string &str,
+ const std::string &subStr)
{
int count = 0; // counts how many times it appears
- unsigned int x = 0; // The index position in the string
+ std::string::size_type x = 0; // The index position in the string
do
{
}
/**
- * \ingroup Globals
* \brief Weed out a string from the non-printable characters (in order
* to avoid corrupting the terminal of invocation when printing)
* @param s string to remove non printable characters from
*/
-std::string Util::CreateCleanString(std::string const & s)
+std::string Util::CreateCleanString(std::string const &s)
{
std::string str = s;
- for(unsigned int i=0;i<str.size();i++)
+ for(unsigned int i=0; i<str.size(); i++)
{
- if(!isprint(str[i]))
+ if(!isprint((unsigned char)str[i]))
{
- str[i]='.';
+ str[i] = '.';
}
}
- if(str.size()>0)
+ if(str.size() > 0)
{
- if(!isprint(s[str.size()-1]))
+ if(!isprint((unsigned char)s[str.size()-1]))
{
- if(s[str.size()-1]==0)
+ if(s[str.size()-1] == 0)
{
- str[str.size()-1]=' ';
+ str[str.size()-1] = ' ';
}
}
}
}
/**
- * \ingroup Globals
* \brief Add a SEPARATOR to the end of the name is necessary
- * @param name file/directory name to normalize
+ * @param pathname file/directory name to normalize
*/
-std::string Util::NormalizePath(std::string const & pathname)
+std::string Util::NormalizePath(std::string const &pathname)
{
const char SEPARATOR_X = '/';
const char SEPARATOR_WIN = '\\';
}
/**
- * \ingroup Globals
* \brief Get the (directory) path from a full path file name
* @param fullName file/directory name to extract Path from
*/
-std::string Util::GetPath(std::string const & fullName)
+std::string Util::GetPath(std::string const &fullName)
{
std::string res = fullName;
int pos1 = res.rfind("/");
}
/**
- * \ingroup Util
* \brief Get the (last) name of a full path file name
* @param fullName file/directory name to extract end name from
*/
-std::string Util::GetName(std::string const & fullName)
+std::string Util::GetName(std::string const &fullName)
{
std::string filename = fullName;
}
/**
- * \ingroup Util
* \brief Get the current date of the system in a dicom string
*/
std::string Util::GetCurrentDate()
}
/**
- * \ingroup Util
* \brief Get the current time of the system in a dicom string
*/
std::string Util::GetCurrentTime()
}
/**
- * \ingroup Util
+ * \brief Get both the date and time at the same time to avoid problem
+ * around midnight where two call could be before and after midnight
+ */
+std::string Util::GetCurrentDateTime()
+{
+ char tmp[40];
+ long milliseconds;
+ time_t timep;
+
+ // We need implementation specific functions to obtain millisecond precision
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+ struct timeb tb;
+ ::ftime(&tb);
+ timep = tb.time;
+ milliseconds = tb.millitm;
+#else
+ struct timeval tv;
+ gettimeofday (&tv, NULL);
+ timep = tv.tv_sec;
+ // Compute milliseconds from microseconds.
+ milliseconds = tv.tv_usec / 1000;
+#endif
+ // Obtain the time of day, and convert it to a tm struct.
+ struct tm *ptm = localtime (&timep);
+ // Format the date and time, down to a single second.
+ strftime (tmp, sizeof (tmp), "%Y%m%d%H%M%S", ptm);
+
+ // Add milliseconds
+ std::string r = tmp;
+ r += Format("%03ld", milliseconds);
+
+ return r;
+}
+
+unsigned int Util::GetCurrentThreadID()
+{
+// FIXME the implementation is far from complete
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+ return (unsigned int)GetCurrentThreadId();
+#endif
+#ifdef __linux__
+ return 0;
+ // Doesn't work on fedora, but is in the man page...
+ //return (unsigned int)gettid();
+#endif
+#ifdef __sun
+ return (unsigned int)thr_self();
+#else
+ //default implementation
+ return 0;
+#endif
+}
+
+unsigned int Util::GetCurrentProcessID()
+{
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+ // NOTE: There is also a _getpid()...
+ return (unsigned int)GetCurrentProcessId();
+#else
+ // get process identification, POSIX
+ return (unsigned int)getpid();
+#endif
+}
+
+/**
+ * \brief tells us if the processor we are working with is BigEndian or not
+ */
+bool Util::IsCurrentProcessorBigEndian()
+{
+#ifdef GDCM_WORDS_BIGENDIAN
+ return true;
+#else
+ return false;
+#endif
+}
+
+/**
* \brief Create a /DICOM/ string:
* It should a of even length (no odd length ever)
- * It can contains as many \0 as you want.
+ * It can contain as many (if you are reading this from your
+ * editor the following character is is backslash followed by zero
+ * that needed to be escaped with an extra backslash for doxygen) \\0
+ * as you want.
*/
-std::string Util::DicomString(const char* s, size_t l)
+std::string Util::DicomString(const char *s, size_t l)
{
std::string r(s, s+l);
- assert( !(r.size() % 2) ); // == basically 'l' is even
+ gdcmAssertMacro( !(r.size() % 2) ); // == basically 'l' is even
return r;
}
/**
- * \ingroup Util
* \brief Create a /DICOM/ string:
- * It should a of even lenght (no odd length ever)
- * It can contains as many \0 as you want.
+ * It should a of even length (no odd length ever)
+ * It can contain as many (if you are reading this from your
+ * editor the following character is is backslash followed by zero
+ * that needed to be escaped with an extra backslash for doxygen) \\0
+ * as you want.
* This function is similar to DicomString(const char*),
- * except it doesn't take a lenght.
+ * except it doesn't take a length.
* It only pad with a null character if length is odd
*/
-std::string Util::DicomString(const char* s)
+std::string Util::DicomString(const char *s)
{
size_t l = strlen(s);
if( l%2 )
l++;
}
std::string r(s, s+l);
- assert( !(r.size() % 2) );
+ gdcmAssertMacro( !(r.size() % 2) );
return r;
}
/**
- * \ingroup Util
* \brief Safely compare two Dicom String:
- * - Both string should be of even lenght
- * - We allow padding of even lenght string by either a null
+ * - Both string should be of even length
+ * - We allow padding of even length string by either a null
* character of a space
*/
-bool Util::DicomStringEqual(const std::string& s1, const char *s2)
+bool Util::DicomStringEqual(const std::string &s1, const char *s2)
{
// s2 is the string from the DICOM reference: 'MONOCHROME1'
std::string s1_even = s1; //Never change input parameter
return s1_even == s2_even;
}
-/**
- * \ingroup Util
- * \brief Return the IP adress of the machine writting the DICOM image
- */
-std::string Util::GetIPAddress()
+#ifdef _WIN32
+ typedef BOOL(WINAPI * pSnmpExtensionInit) (
+ IN DWORD dwTimeZeroReference,
+ OUT HANDLE * hPollForTrapEvent,
+ OUT AsnObjectIdentifier * supportedView);
+
+ typedef BOOL(WINAPI * pSnmpExtensionTrap) (
+ OUT AsnObjectIdentifier * enterprise,
+ OUT AsnInteger * genericTrap,
+ OUT AsnInteger * specificTrap,
+ OUT AsnTimeticks * timeStamp,
+ OUT RFC1157VarBindList * variableBindings);
+
+ typedef BOOL(WINAPI * pSnmpExtensionQuery) (
+ IN BYTE requestType,
+ IN OUT RFC1157VarBindList * variableBindings,
+ OUT AsnInteger * errorStatus,
+ OUT AsnInteger * errorIndex);
+
+ typedef BOOL(WINAPI * pSnmpExtensionInitEx) (
+ OUT AsnObjectIdentifier * supportedView);
+#endif //_WIN32
+
+/// \brief gets current M.A.C adress (for internal use only)
+int GetMacAddrSys ( unsigned char *addr )
{
- // This is a rip from http://www.codeguru.com/Cpp/I-N/internet/network/article.php/c3445/
-#ifndef HOST_NAME_MAX
- // SUSv2 guarantees that `Host names are limited to 255 bytes'.
- // POSIX 1003.1-2001 guarantees that `Host names (not including the
- // terminating NUL) are limited to HOST_NAME_MAX bytes'.
-# define HOST_NAME_MAX 255
- // In this case we should maybe check the string was not truncated.
- // But I don't known how to check that...
-#endif //HOST_NAME_MAX
-
- std::string str;
- char szHostName[HOST_NAME_MAX+1];
- int r = gethostname(szHostName, HOST_NAME_MAX);
+#ifdef _WIN32
+ WSADATA WinsockData;
+ if (WSAStartup(MAKEWORD(2, 0), &WinsockData) != 0)
+ {
+ std::cerr << "This program requires Winsock 2.x!" << std::endl;
+ return -1;
+ }
- if( r == 0 )
- {
- // Get host adresses
- struct hostent * pHost = gethostbyname(szHostName);
+ HANDLE PollForTrapEvent;
+ AsnObjectIdentifier SupportedView;
+ UINT OID_ifEntryType[] = { 1, 3, 6, 1, 2, 1, 2, 2, 1, 3 };
+ UINT OID_ifEntryNum[] = { 1, 3, 6, 1, 2, 1, 2, 1 };
+ UINT OID_ipMACEntAddr[] = { 1, 3, 6, 1, 2, 1, 2, 2, 1, 6 };
+ AsnObjectIdentifier MIB_ifMACEntAddr = {
+ sizeof(OID_ipMACEntAddr) / sizeof(UINT), OID_ipMACEntAddr };
+ AsnObjectIdentifier MIB_ifEntryType = {
+ sizeof(OID_ifEntryType) / sizeof(UINT), OID_ifEntryType };
+ AsnObjectIdentifier MIB_ifEntryNum = {
+ sizeof(OID_ifEntryNum) / sizeof(UINT), OID_ifEntryNum };
+ RFC1157VarBindList varBindList;
+ RFC1157VarBind varBind[2];
+ AsnInteger errorStatus;
+ AsnInteger errorIndex;
+ AsnObjectIdentifier MIB_NULL = { 0, 0 };
+ int ret;
+ int dtmp;
+ int j = 0;
+
+ // Load the SNMP dll and get the addresses of the functions necessary
+ HINSTANCE m_hInst = LoadLibrary("inetmib1.dll");
+ if (m_hInst < (HINSTANCE) HINSTANCE_ERROR)
+ {
+ return -1;
+ }
+ pSnmpExtensionInit m_Init =
+ (pSnmpExtensionInit) GetProcAddress(m_hInst, "SnmpExtensionInit");
+ pSnmpExtensionQuery m_Query =
+ (pSnmpExtensionQuery) GetProcAddress(m_hInst, "SnmpExtensionQuery");
+ m_Init(GetTickCount(), &PollForTrapEvent, &SupportedView);
+
+ /* Initialize the variable list to be retrieved by m_Query */
+ varBindList.list = varBind;
+ varBind[0].name = MIB_NULL;
+ varBind[1].name = MIB_NULL;
+
+ // Copy in the OID to find the number of entries in the
+ // Inteface table
+ varBindList.len = 1; // Only retrieving one item
+ SNMP_oidcpy(&varBind[0].name, &MIB_ifEntryNum);
+ m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
+ &errorIndex);
+// printf("# of adapters in this system : %i\n",
+// varBind[0].value.asnValue.number);
+ varBindList.len = 2;
+
+ // Copy in the OID of ifType, the type of interface
+ SNMP_oidcpy(&varBind[0].name, &MIB_ifEntryType);
+
+ // Copy in the OID of ifPhysAddress, the address
+ SNMP_oidcpy(&varBind[1].name, &MIB_ifMACEntAddr);
- for( int i = 0; pHost!= NULL && pHost->h_addr_list[i]!= NULL; i++ )
- {
- for( int j = 0; j<pHost->h_length; j++ )
+ do
+ {
+ // Submit the query. Responses will be loaded into varBindList.
+ // We can expect this call to succeed a # of times corresponding
+ // to the # of adapters reported to be in the system
+ ret = m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
+ &errorIndex);
+ if (!ret)
{
- if( j > 0 ) str += ".";
+ ret = 1;
+ }
+ else
+ {
+ // Confirm that the proper type has been returned
+ ret = SNMP_oidncmp(&varBind[0].name, &MIB_ifEntryType,
+ MIB_ifEntryType.idLength);
+ }
+ if (!ret)
+ {
+ j++;
+ dtmp = varBind[0].value.asnValue.number;
- str += Util::Format("%u",
- (unsigned int)((unsigned char*)pHost->h_addr_list[i])[j]);
+ // Type 6 describes ethernet interfaces
+ if (dtmp == 6)
+ {
+ // Confirm that we have an address here
+ ret = SNMP_oidncmp(&varBind[1].name, &MIB_ifMACEntAddr,
+ MIB_ifMACEntAddr.idLength);
+ if ( !ret && varBind[1].value.asnValue.address.stream != NULL )
+ {
+ if ( (varBind[1].value.asnValue.address.stream[0] == 0x44)
+ && (varBind[1].value.asnValue.address.stream[1] == 0x45)
+ && (varBind[1].value.asnValue.address.stream[2] == 0x53)
+ && (varBind[1].value.asnValue.address.stream[3] == 0x54)
+ && (varBind[1].value.asnValue.address.stream[4] == 0x00) )
+ {
+ // Ignore all dial-up networking adapters
+ std::cerr << "Interface #" << j << " is a DUN adapter\n";
+ continue;
+ }
+ if ( (varBind[1].value.asnValue.address.stream[0] == 0x00)
+ && (varBind[1].value.asnValue.address.stream[1] == 0x00)
+ && (varBind[1].value.asnValue.address.stream[2] == 0x00)
+ && (varBind[1].value.asnValue.address.stream[3] == 0x00)
+ && (varBind[1].value.asnValue.address.stream[4] == 0x00)
+ && (varBind[1].value.asnValue.address.stream[5] == 0x00) )
+ {
+ // Ignore NULL addresses returned by other network
+ // interfaces
+ std::cerr << "Interface #" << j << " is a NULL address\n";
+ continue;
+ }
+ memcpy( addr, varBind[1].value.asnValue.address.stream, 6);
+ }
+ }
}
- // str now contains one local IP address
+ } while (!ret);
+
+ // Free the bindings
+ SNMP_FreeVarBind(&varBind[0]);
+ SNMP_FreeVarBind(&varBind[1]);
+ return 0;
+#endif //Win32 version
+
+
+// implementation for POSIX system
+#ifdef __sun
+ //The POSIX version is broken anyway on Solaris, plus would require full
+ //root power
+ struct arpreq parpreq;
+ struct sockaddr_in *psa;
+ struct hostent *phost;
+ char hostname[MAXHOSTNAMELEN];
+ char **paddrs;
+ int sock, status=0;
+
+ if(gethostname(hostname, MAXHOSTNAMELEN) != 0)
+ {
+ perror("gethostname");
+ return -1;
+ }
+ phost = gethostbyname(hostname);
+ paddrs = phost->h_addr_list;
+
+ sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+ if(sock == -1)
+ {
+ perror("sock");
+ return -1;
+ }
+ memset(&parpreq, 0, sizeof(struct arpreq));
+ psa = (struct sockaddr_in *) &parpreq.arp_pa;
+
+ memset(psa, 0, sizeof(struct sockaddr_in));
+ psa->sin_family = AF_INET;
+ memcpy(&psa->sin_addr, *paddrs, sizeof(struct in_addr));
+
+ status = ioctl(sock, SIOCGARP, &parpreq);
+ if(status == -1)
+ {
+ perror("SIOCGARP");
+ return -1;
+ }
+ memcpy(addr, parpreq.arp_ha.sa_data, 6);
+
+ return 0;
+#else
+#ifdef CMAKE_HAVE_NET_IF_H
+ int sd;
+ struct ifreq ifr, *ifrp;
+ struct ifconf ifc;
+ char buf[1024];
+ int n, i;
+ unsigned char *a;
+#if defined(AF_LINK) && (!defined(SIOCGIFHWADDR) && !defined(SIOCGENADDR))
+ struct sockaddr_dl *sdlp;
+#endif
+
+//
+// BSD 4.4 defines the size of an ifreq to be
+// max(sizeof(ifreq), sizeof(ifreq.ifr_name)+ifreq.ifr_addr.sa_len
+// However, under earlier systems, sa_len isn't present, so the size is
+// just sizeof(struct ifreq)
+// We should investiage the use of SIZEOF_ADDR_IFREQ
+//
+#ifdef HAVE_SA_LEN
+ #ifndef max
+ #define max(a,b) ((a) > (b) ? (a) : (b))
+ #endif
+ #define ifreq_size(i) max(sizeof(struct ifreq),\
+ sizeof((i).ifr_name)+(i).ifr_addr.sa_len)
+#else
+ #define ifreq_size(i) sizeof(struct ifreq)
+#endif // HAVE_SA_LEN
+
+ if( (sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0 )
+ {
+ return -1;
+ }
+ memset(buf, 0, sizeof(buf));
+ ifc.ifc_len = sizeof(buf);
+ ifc.ifc_buf = buf;
+ if (ioctl (sd, SIOCGIFCONF, (char *)&ifc) < 0)
+ {
+ close(sd);
+ return -1;
+ }
+ n = ifc.ifc_len;
+ for (i = 0; i < n; i+= ifreq_size(*ifrp) )
+ {
+ ifrp = (struct ifreq *)((char *) ifc.ifc_buf+i);
+ strncpy(ifr.ifr_name, ifrp->ifr_name, IFNAMSIZ);
+#ifdef SIOCGIFHWADDR
+ if (ioctl(sd, SIOCGIFHWADDR, &ifr) < 0)
+ continue;
+ a = (unsigned char *) &ifr.ifr_hwaddr.sa_data;
+#else
+#ifdef SIOCGENADDR
+ // In theory this call should also work on Sun Solaris, but apparently
+ // SIOCGENADDR is not implemented properly thus the call
+ // ioctl(sd, SIOCGENADDR, &ifr) always returns errno=2
+ // (No such file or directory)
+ // Furthermore the DLAPI seems to require full root access
+ if (ioctl(sd, SIOCGENADDR, &ifr) < 0)
+ continue;
+ a = (unsigned char *) ifr.ifr_enaddr;
+#else
+#ifdef AF_LINK
+ sdlp = (struct sockaddr_dl *) &ifrp->ifr_addr;
+ if ((sdlp->sdl_family != AF_LINK) || (sdlp->sdl_alen != 6))
+ continue;
+ a = (unsigned char *) &sdlp->sdl_data[sdlp->sdl_nlen];
+#else
+ perror("No way to access hardware");
+ close(sd);
+ return -1;
+#endif // AF_LINK
+#endif // SIOCGENADDR
+#endif // SIOCGIFHWADDR
+ if (!a[0] && !a[1] && !a[2] && !a[3] && !a[4] && !a[5]) continue;
+
+ if (addr)
+ {
+ memcpy(addr, a, 6);
+ close(sd);
+ return 0;
+ }
+ }
+ close(sd);
+#endif
+ // Not implemented platforms
+ perror("There was a configuration problem on your plateform");
+ memset(addr,0,6);
+ return -1;
+#endif //__sun
+}
+
+/**
+ * \brief Mini function to return the last digit from a number express in base 256
+ * pre condition data contain an array of 6 unsigned char
+ * post condition carry contain the last digit
+ */
+inline int getlastdigit(unsigned char *data)
+{
+ int extended, carry = 0;
+ for(int i=0;i<6;i++)
+ {
+ extended = (carry << 8) + data[i];
+ data[i] = extended / 10;
+ carry = extended % 10;
}
- }
- // If an error occur r == -1
- // Most of the time it will return 127.0.0.1...
- return str;
+ return carry;
+}
+
+/**
+ * \brief Encode the mac address on a fixed lenght string of 15 characters.
+ * we save space this way.
+ */
+std::string Util::GetMACAddress()
+{
+ // This code is the result of a long internet search to find something
+ // as compact as possible (not OS independant). We only have to separate
+ // 3 OS: Win32, SunOS and 'real' POSIX
+ // http://groups-beta.google.com/group/comp.unix.solaris/msg/ad36929d783d63be
+ // http://bdn.borland.com/article/0,1410,26040,00.html
+ unsigned char addr[6];
+
+ int stat = GetMacAddrSys(addr);
+ if (stat == 0)
+ {
+ // We need to convert a 6 digit number from base 256 to base 10, using integer
+ // would requires a 48bits one. To avoid this we have to reimplement the div + modulo
+ // with string only
+ bool zero = false;
+ int res;
+ std::string sres;
+ while(!zero)
+ {
+ res = getlastdigit(addr);
+ sres.insert(sres.begin(), '0' + res);
+ zero = (addr[0] == 0) && (addr[1] == 0) && (addr[2] == 0) && (addr[3] == 0) && (addr[4] == 0) && (addr[5] == 0);
+ }
+
+ return sres;
+ }
+ else
+ {
+ gdcmWarningMacro("Problem in finding the MAC Address");
+ return "";
+ }
}
/**
- * \ingroup Util
* \brief Creates a new UID. As stipulate in the DICOM ref
* each time a DICOM image is create it should have
* a unique identifier (URI)
+ * @param root is the DICOM prefix assigned by IOS group
*/
-std::string Util::CreateUniqueUID(const std::string& root)
+std::string Util::CreateUniqueUID(const std::string &root)
{
- // The code works as follow:
- // echo "gdcm" | od -b
- // 0000000 147 144 143 155 012
- // Therefore we return
- // radical + 147.144.143.155 + IP + time()
- std::string radical = root;
- if( !root.size() ) //anything better ?
- {
- radical = "0.0."; // Is this really usefull ?
- }
- // else
- // A root was specified use it to forge our new UID:
- radical += "147.144.143.155"; // gdcm
- radical += ".";
- radical += Util::GetIPAddress();
- radical += ".";
- radical += Util::GetCurrentDate();
- radical += ".";
- radical += Util::GetCurrentTime();
-
- return radical;
+ std::string prefix;
+ std::string append;
+ if( root.empty() )
+ {
+ // gdcm UID prefix, as supplied by http://www.medicalconnections.co.uk
+ prefix = RootUID;
+ }
+ else
+ {
+ prefix = root;
+ }
+
+ // A root was specified use it to forge our new UID:
+ append += ".";
+ append += Util::GetMACAddress();
+ append += ".";
+ append += Util::GetCurrentDateTime();
+
+ //Also add a mini random number just in case:
+ int r = (int) (100.0*rand()/RAND_MAX);
+ append += Format("%02d", r);
+
+ // If append is too long we need to rehash it
+ if( (prefix + append).size() > 64 )
+ {
+ gdcmErrorMacro( "Size of UID is too long." );
+ // we need a hash function to truncate this number
+ // if only md5 was cross plateform
+ // MD5(append);
+ }
+
+ return prefix + append;
+}
+
+void Util::SetRootUID(const std::string &root)
+{
+ if( root.empty() )
+ RootUID = GDCM_UID;
+ else
+ RootUID = root;
+}
+
+const std::string &Util::GetRootUID()
+{
+ return RootUID;
}
+//-------------------------------------------------------------------------
+/**
+ * \brief class for binary write
+ * @param os ostream to write to
+ * @param val val
+ */
template <class T>
-std::ostream& binary_write(std::ostream& os, const T& val)
+std::ostream &binary_write(std::ostream &os, const T &val)
{
- return os.write(reinterpret_cast<const char*>(&val), sizeof val);
+ return os.write(reinterpret_cast<const char*>(&val), sizeof val);
}
-std::ostream& binary_write(std::ostream& os, const uint16_t& val)
+/**
+ * \brief binary_write binary_write
+ * @param os ostream to write to
+ * @param val val
+ */
+std::ostream &binary_write(std::ostream &os, const uint16_t &val)
{
#ifdef GDCM_WORDS_BIGENDIAN
- uint16_t swap;
- swap = ((( val << 8 ) & 0x0ff00 ) | (( val >> 8 ) & 0x00ff ) );
- return os.write(reinterpret_cast<const char*>(&swap), 2);
+ uint16_t swap;
+ swap = ((( val << 8 ) & 0xff00 ) | (( val >> 8 ) & 0x00ff ) );
+ return os.write(reinterpret_cast<const char*>(&swap), 2);
#else
- return os.write(reinterpret_cast<const char*>(&val), 2);
+ return os.write(reinterpret_cast<const char*>(&val), 2);
#endif //GDCM_WORDS_BIGENDIAN
}
-std::ostream& binary_write(std::ostream& os, const uint32_t& val)
+/**
+ * \brief binary_write binary_write
+ * @param os ostream to write to
+ * @param val val
+ */
+std::ostream &binary_write(std::ostream &os, const uint32_t &val)
{
#ifdef GDCM_WORDS_BIGENDIAN
- uint32_t swap;
- swap = ( ((val<<24) & 0xff000000) | ((val<<8) & 0x00ff0000) |
- ((val>>8) & 0x0000ff00) | ((val>>24) & 0x000000ff) );
- return os.write(reinterpret_cast<const char*>(&swap), 4);
+ uint32_t swap;
+ swap = ( ((val<<24) & 0xff000000) | ((val<<8) & 0x00ff0000) |
+ ((val>>8) & 0x0000ff00) | ((val>>24) & 0x000000ff) );
+ return os.write(reinterpret_cast<const char*>(&swap), 4);
#else
- return os.write(reinterpret_cast<const char*>(&val), 4);
+ return os.write(reinterpret_cast<const char*>(&val), 4);
#endif //GDCM_WORDS_BIGENDIAN
}
-std::ostream& binary_write(std::ostream& os, const char* val)
+/**
+ * \brief binary_write binary_write
+ * @param os ostream to write to
+ * @param val val
+ */
+std::ostream &binary_write(std::ostream &os, const char *val)
+{
+ return os.write(val, strlen(val));
+}
+
+/**
+ * \brief
+ * @param os ostream to write to
+ * @param val val
+ */
+std::ostream &binary_write(std::ostream &os, std::string const &val)
+{
+ return os.write(val.c_str(), val.size());
+}
+
+/**
+ * \brief binary_write binary_write
+ * @param os ostream to write to
+ * @param val val
+ */
+std::ostream &binary_write(std::ostream &os, const uint8_t *val, size_t len)
{
- return os.write(val, strlen(val));
+ // We are writting sizeof(char) thus no need to swap bytes
+ return os.write(reinterpret_cast<const char*>(val), len);
}
-std::ostream& binary_write(std::ostream& os, std::string const & val)
+/**
+ * \brief binary_write binary_write
+ * @param os ostream to write to
+ * @param val val
+ */
+std::ostream &binary_write(std::ostream &os, const uint16_t *val, size_t len)
{
- return os.write(val.c_str(), val.size());
+// This is tricky since we are writting two bytes buffer. Be carefull with little endian
+// vs big endian. Also this other trick is to allocate a small (efficient) buffer that store
+// intermidiate result before writting it.
+#ifdef GDCM_WORDS_BIGENDIAN
+ const int BUFFER_SIZE = 4096;
+ uint16_t *buffer = new uint16_t[BUFFER_SIZE/2];
+ uint16_t *binArea16 = val;
+
+ // how many BUFFER_SIZE long pieces in binArea ?
+ int nbPieces = len/BUFFER_SIZE; //(16 bits = 2 Bytes)
+ int remainingSize = len%BUFFER_SIZE;
+
+ for (int j=0;j<nbPieces;j++)
+ {
+ for (int i = 0; i < BUFFER_SIZE/2; i++)
+ {
+ //buffer[i] = (binArea16[i] >> 8) | (binArea16[i] << 8);
+ uint16_t val16 = binArea16[i];
+ buffer[i] = ((( val16 << 8 ) & 0xff00 ) | (( val16 >> 8 ) & 0x00ff ) );
+ }
+ fp->write ( (char*)buffer, BUFFER_SIZE );
+ binArea16 += BUFFER_SIZE/2;
+ }
+ if ( remainingSize > 0)
+ {
+ for (int i = 0; i < remainingSize/2; i++)
+ {
+ //buffer[i] = (binArea16[i] >> 8) | (binArea16[i] << 8);
+ uint16_t val16 = binArea16[i];
+ buffer[i] = ((( val16 << 8 ) & 0xff00 ) | (( val16 >> 8 ) & 0x00ff ) );
+ }
+ fp->write ( (char*)buffer, remainingSize );
+ }
+ delete[] buffer;
+#else
+ return os.write(reinterpret_cast<const char*>(val), len);
+#endif
+}
+
+//-------------------------------------------------------------------------
+// Protected
+
+//-------------------------------------------------------------------------
+// Private
+/**
+ * \brief Return the IP adress of the machine writting the DICOM image
+ */
+std::string Util::GetIPAddress()
+{
+ // This is a rip from
+ // http://www.codeguru.com/Cpp/I-N/internet/network/article.php/c3445/
+#ifndef HOST_NAME_MAX
+ // SUSv2 guarantees that `Host names are limited to 255 bytes'.
+ // POSIX 1003.1-2001 guarantees that `Host names (not including the
+ // terminating NUL) are limited to HOST_NAME_MAX bytes'.
+#define HOST_NAME_MAX 255
+ // In this case we should maybe check the string was not truncated.
+ // But I don't known how to check that...
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+ // with WinSock DLL we need to initialize the WinSock before using gethostname
+ WORD wVersionRequested = MAKEWORD(1,0);
+ WSADATA WSAData;
+ int err = WSAStartup(wVersionRequested,&WSAData);
+ if (err != 0)
+ {
+ // Tell the user that we could not find a usable
+ // WinSock DLL.
+ WSACleanup();
+ return "127.0.0.1";
+ }
+#endif
+
+#endif //HOST_NAME_MAX
+
+ std::string str;
+ char szHostName[HOST_NAME_MAX+1];
+ int r = gethostname(szHostName, HOST_NAME_MAX);
+
+ if( r == 0 )
+ {
+ // Get host adresses
+ struct hostent *pHost = gethostbyname(szHostName);
+
+ for( int i = 0; pHost!= NULL && pHost->h_addr_list[i]!= NULL; i++ )
+ {
+ for( int j = 0; j<pHost->h_length; j++ )
+ {
+ if( j > 0 ) str += ".";
+
+ str += Util::Format("%u",
+ (unsigned int)((unsigned char*)pHost->h_addr_list[i])[j]);
+ }
+ // str now contains one local IP address
+
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+ WSACleanup();
+#endif
+
+ }
+ }
+ // If an error occur r == -1
+ // Most of the time it will return 127.0.0.1...
+ return str;
}
+//-------------------------------------------------------------------------
} // end namespace gdcm
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff