Program: gdcm
Module: $RCSfile: gdcmUtil.cxx,v $
Language: C++
- Date: $Date: 2005/01/15 22:44:11 $
- Version: $Revision: 1.97 $
+ 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 <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
-#if defined(_MSC_VER)
- #include <winsock.h> // for gethostname & gethostbyname
+#if defined(_MSC_VER) || defined(__MINGW32__)
+ #include <winsock.h> // for gethostname and gethostbyname
#undef GetCurrentTime
#else
#ifndef __BORLANDC__
// For GetMACAddress
#ifdef _WIN32
-#include <snmp.h>
-#include <conio.h>
+ #include <snmp.h>
+ #include <conio.h>
#else
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
+ #include <unistd.h>
+ #include <stdlib.h>
+ #include <string.h>
+ #include <sys/types.h>
#endif
-// How do I do that in CMake ?
-#ifdef __APPLE__
-#define HAVE_SA_LEN
-#define CMAKE_HAVE_NET_IF_DL_H
-#define CMAKE_HAVE_NETINET_IN_H
-#define CMAKE_HAVE_NET_IF_H
-#endif //APPLE
-
#ifdef CMAKE_HAVE_SYS_IOCTL_H
-#include <sys/ioctl.h> // For SIOCGIFCONF on Linux
+ #include <sys/ioctl.h> // For SIOCGIFCONF on Linux
#endif
#ifdef CMAKE_HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
+ #include <sys/socket.h>
#endif
#ifdef CMAKE_HAVE_SYS_SOCKIO_H
-#include <sys/sockio.h> // For SIOCGIFCONF on SunOS
+ #include <sys/sockio.h> // For SIOCGIFCONF on SunOS
#endif
#ifdef CMAKE_HAVE_NET_IF_H
-#include <net/if.h>
+ #include <net/if.h>
#endif
#ifdef CMAKE_HAVE_NETINET_IN_H
-#include <netinet/in.h> //For IPPROTO_IP
+ #include <netinet/in.h> //For IPPROTO_IP
#endif
#ifdef CMAKE_HAVE_NET_IF_DL_H
-#include <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
-//#if defined(CMAKE_HAVE_NET_IF_ARP_H) && defined(__sun)
-// This is absolutely necesseray on SunOS
-#include <net/if_arp.h>
+ #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 , elem);
* gdcm style code is
* Format("%04x|%04x", group , elem);
*/
-
std::string Util::Format(const char *format, ...)
{
char buffer[2048];
/**
- * \ingroup Globals
* \brief Because not available in C++ (?)
*/
void Util::Tokenize (const std::string &str,
std::vector<std::string> &tokens,
- const std::string& delimiters)
+ 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
*/
}
/**
- * \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
}
/**
- * \ingroup Globals
* \brief Add a SEPARATOR to the end of the name is necessary
* @param pathname file/directory name to normalize
*/
}
/**
- * \ingroup Globals
* \brief Get the (directory) path from a full path file name
* @param fullName file/directory name to extract Path from
*/
}
/**
- * \ingroup Util
* \brief Get the (last) name of a full path file name
* @param fullName file/directory name to extract end name from
*/
}
/**
- * \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()
return tmp;
}
+/**
+ * \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)
}
/**
- * \ingroup Util
* \brief Create a /DICOM/ string:
- * It should a of even lenght (no odd length ever)
+ * 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)
}
/**
- * \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)
return s1_even == s2_even;
}
-
-
-/**
- * \ingroup Util
- * \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
-}
-
-
-
#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);
+ 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
-
-long GetMacAddrSys ( unsigned char *addr)
+/// \brief gets current M.A.C adress (for internal use only)
+int GetMacAddrSys ( unsigned char *addr )
{
#ifdef _WIN32
WSADATA WinsockData;
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_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_NULL = { 0, 0 };
int ret;
int dtmp;
- int i = 0, j = 0;
- BOOL found = FALSE;
+ 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)
{
- m_hInst = NULL;
return -1;
}
pSnmpExtensionInit m_Init =
(pSnmpExtensionInit) GetProcAddress(m_hInst, "SnmpExtensionInit");
- pSnmpExtensionInitEx m_InitEx =
- (pSnmpExtensionInitEx) GetProcAddress(m_hInst, "SnmpExtensionInitEx");
pSnmpExtensionQuery m_Query =
(pSnmpExtensionQuery) GetProcAddress(m_hInst, "SnmpExtensionQuery");
- pSnmpExtensionTrap m_Trap =
- (pSnmpExtensionTrap) GetProcAddress(m_hInst, "SnmpExtensionTrap");
m_Init(GetTickCount(), &PollForTrapEvent, &SupportedView);
/* Initialize the variable list to be retrieved by m_Query */
// Inteface table
varBindList.len = 1; // Only retrieving one item
SNMP_oidcpy(&varBind[0].name, &MIB_ifEntryNum);
- ret = m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
+ m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
&errorIndex);
// printf("# of adapters in this system : %i\n",
-// varBind[0].value.asnValue.number); varBindList.len = 2;
+// 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);
{
j++;
dtmp = varBind[0].value.asnValue.number;
- printf("Interface #%i type : %i\n", j, dtmp);
// Type 6 describes ethernet interfaces
if (dtmp == 6)
&& (varBind[1].value.asnValue.address.stream[4] == 0x00) )
{
// Ignore all dial-up networking adapters
- printf("Interface #%i is a DUN adapter\n", j);
+ std::cerr << "Interface #" << j << " is a DUN adapter\n";
continue;
}
if ( (varBind[1].value.asnValue.address.stream[0] == 0x00)
{
// Ignore NULL addresses returned by other network
// interfaces
- printf("Interface #%i is a NULL address\n", j);
+ std::cerr << "Interface #" << j << " is a NULL address\n";
continue;
}
memcpy( addr, varBind[1].value.asnValue.address.stream, 6);
#ifdef __sun
//The POSIX version is broken anyway on Solaris, plus would require full
//root power
- int i;
struct arpreq parpreq;
- struct sockaddr_in sa, *psa;
- struct in_addr inaddr;
+ struct sockaddr_in *psa;
struct hostent *phost;
char hostname[MAXHOSTNAMELEN];
- unsigned char *ptr;
char **paddrs;
int sock, status=0;
- gethostname(hostname, MAXHOSTNAMELEN);
+ if(gethostname(hostname, MAXHOSTNAMELEN) != 0)
+ {
+ perror("gethostname");
+ return -1;
+ }
phost = gethostbyname(hostname);
paddrs = phost->h_addr_list;
- //memcpy(&inaddr.s_addr, *paddrs, sizeof(inaddr.s_addr));
sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
-
if(sock == -1)
{
perror("sock");
}
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");
- //exit(-1);
return -1;
}
-
- memcpy(addr, parpreq.arp_ha.sa_data, 6);
-// printf("MAC Address: %x:%x:%x:%x:%x:%x\n",
-//
-// parpreq.arp_ha.sa_data[0],
-// parpreq.arp_ha.sa_data[1],
-// parpreq.arp_ha.sa_data[2],
-// parpreq.arp_ha.sa_data[3],
-// parpreq.arp_ha.sa_data[4],
-//
-// parpreq.arp_ha.sa_data[5]);
+ memcpy(addr, parpreq.arp_ha.sa_data, 6);
return 0;
#else
char buf[1024];
int n, i;
unsigned char *a;
-#ifdef AF_LINK
+#if defined(AF_LINK) && (!defined(SIOCGIFHWADDR) && !defined(SIOCGENADDR))
struct sockaddr_dl *sdlp;
#endif
// 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)
+ #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)
+ #define ifreq_size(i) sizeof(struct ifreq)
#endif // HAVE_SA_LEN
if( (sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0 )
continue;
a = (unsigned char *) &sdlp->sdl_data[sdlp->sdl_nlen];
#else
- /*
- * XXX we don't have a way of getting the hardware
- * address
- */
+ perror("No way to access hardware");
close(sd);
return -1;
#endif // AF_LINK
}
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;
+ }
+ 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
// 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
- u_char addr[6];
- std::string macaddr;
-
- long stat = GetMacAddrSys(addr);
- if (0 == stat)
+ unsigned char addr[6];
+
+ int stat = GetMacAddrSys(addr);
+ if (stat == 0)
{
- //printf( "MAC address = ");
- for (int i=0; i<6; ++i)
+ // 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)
{
- //printf("%2.2x", addr[i]);
- macaddr += Format("%2.2x", addr[i]);
+ 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);
}
- //printf( "\n");
- return macaddr;
+
+ return sres;
}
else
{
- //printf( "No MAC address !\n" );
+ gdcmWarningMacro("Problem in finding the MAC Address");
return "";
}
}
/**
- * \ingroup Util
- * \brief Return the IP adress of the machine writting the DICOM image
+ * \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::GetIPAddress()
+std::string Util::CreateUniqueUID(const std::string &root)
{
- // 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__)
- // with WinSock DLL we need to initialise 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 prefix;
+ std::string append;
+ if( root.empty() )
+ {
+ // gdcm UID prefix, as supplied by http://www.medicalconnections.co.uk
+ prefix = RootUID;
+ }
+ else
+ {
+ prefix = root;
+ }
- std::string str;
- char szHostName[HOST_NAME_MAX+1];
- int r = gethostname(szHostName, HOST_NAME_MAX);
+ // A root was specified use it to forge our new UID:
+ append += ".";
+ append += Util::GetMACAddress();
+ append += ".";
+ append += Util::GetCurrentDateTime();
- if( r == 0 )
- {
- // Get host adresses
- struct hostent *pHost = gethostbyname(szHostName);
+ //Also add a mini random number just in case:
+ int r = (int) (100.0*rand()/RAND_MAX);
+ append += Format("%02d", r);
- 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 += ".";
+ // 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);
+ }
- str += Util::Format("%u",
- (unsigned int)((unsigned char*)pHost->h_addr_list[i])[j]);
- }
- // str now contains one local IP address
+ return prefix + append;
+}
-#if defined(_MSC_VER) || defined(__BORLANDC__)
- WSACleanup();
-#endif
-
- }
- }
- // If an error occur r == -1
- // Most of the time it will return 127.0.0.1...
- return str;
+void Util::SetRootUID(const std::string &root)
+{
+ if( root.empty() )
+ RootUID = GDCM_UID;
+ else
+ RootUID = root;
}
-/**
- * \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)
- */
-std::string Util::CreateUniqueUID(const std::string &root)
+const std::string &Util::GetRootUID()
{
- // 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;
+ 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)
{
- return os.write(reinterpret_cast<const char*>(&val), sizeof val);
+ return os.write(reinterpret_cast<const char*>(&val), sizeof 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
}
+/**
+ * \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
}
+/**
+ * \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));
+ 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());
+ 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)
+{
+ // We are writting sizeof(char) thus no need to swap bytes
+ return os.write(reinterpret_cast<const char*>(val), len);
+}
+
+/**
+ * \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)
+{
+// 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