Program: gdcm
Module: $RCSfile: gdcmUtil.cxx,v $
Language: C++
- Date: $Date: 2005/01/18 16:19:57 $
- Version: $Revision: 1.112 $
+ Date: $Date: 2005/10/28 15:52:46 $
+ Version: $Revision: 1.172 $
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) || defined(__MINGW32__)
- #include <winsock.h> // for gethostname & gethostbyname
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+ #include <winsock.h> // for gethostname and gethostbyname and GetTickCount...
+// I haven't find a way to determine wether we need to under GetCurrentTime or not...
+// I think the best solution would simply to get rid of this problematic function
+// and use a 'less' common name...
+#if !defined(__BORLANDC__) || (__BORLANDC__ >= 0x0560)
#undef GetCurrentTime
+#endif
#else
-#ifndef __BORLANDC__
#include <unistd.h> // for gethostname
#include <netdb.h> // for gethostbyname
#endif
-#endif
// For GetMACAddress
#ifdef _WIN32
#include <net/if_dl.h>
#endif
#if defined(CMAKE_HAVE_NET_IF_ARP_H) && defined(__sun)
- // This is absolutely necesseray on SunOS
+ // 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;
+/*
+ * File Meta Information Version (0002,0001) shall contain a two byte OB
+ * value consisting of a 0x00 byte, followed by 0x01 byte, and not the
+ * value 0x0001 encoded as a little endian 16 bit short value,
+ * which would be the other way around...
+ */
+const uint16_t Util::FMIV = 0x0100;
+uint8_t *Util::FileMetaInformationVersion = (uint8_t *)&FMIV;
+std::string Util::GDCM_MAC_ADRESS = GetMACAddress();
+
+//-------------------------------------------------------------------------
+// Public
/**
* \brief Provide a better 'c++' approach for sprintf
* For example c code is:
- * sprintf(trash, "%04x|%04x", group , elem);
+ * char result[200]; // hope 200 is enough
+ * sprintf(result, "%04x|%04x", group , elem);
*
* c++ code is
* std::ostringstream buf;
* buf.str();
*
* gdcm style code is
- * Format("%04x|%04x", group , elem);
+ * string result;
+ * result = gdcm::Util::Format("%04x|%04x", group , elem);
*/
-
std::string Util::Format(const char *format, ...)
{
char buffer[2048];
/**
* \brief Because not available in C++ (?)
+ * @param str string to check
+ * @param tokens std::vector to receive the tokenized substrings
+ * @param delimiters string containing the character delimitors
+
*/
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);
/**
* \brief Because not available in C++ (?)
* Counts the number of occurences of a substring within a string
+ * @param str string to check
+ * @param subStr substring to count
*/
int Util::CountSubstring (const std::string &str,
const std::string &subStr)
{
- int count = 0; // counts how many times it appears
- std::string::size_type x = 0; // The index position in the string
+ int count = 0; // counts how many times it appears
+ std::string::size_type x = 0; // The index position in the string
do
{
- x = str.find(subStr,x); // Find the substring
- if (x != std::string::npos) // If present
+ x = str.find(subStr,x); // Find the substring
+ if (x != std::string::npos) // If present
{
- count++; // increase the count
- x += subStr.length(); // Skip this word
+ count++; // increase the count
+ x += subStr.length(); // Skip this word
}
}
- while (x != std::string::npos); // Carry on until not present
+ while (x != std::string::npos);// Carry on until not present
return count;
}
+/**
+ * \brief Checks whether a 'string' is printable or not (in order
+ * to avoid corrupting the terminal of invocation when printing)
+ * @param s string to check
+ */
+bool Util::IsCleanString(std::string const &s)
+{
+ //std::cout<< std::endl << s << std::endl;
+ for(unsigned int i=0; i<s.size(); i++)
+ {
+ if (!isprint((unsigned char)s[i]) )
+ {
+ return false;
+ }
+ }
+ return true;
+}
+
+/**
+ * \brief Checks whether an 'area' is printable or not (in order
+ * to avoid corrupting the terminal of invocation when printing)
+ * @param s area to check (uint8_t is just for prototyping. feel free to cast)
+ * @param l area length to check
+ */
+bool Util::IsCleanArea(uint8_t *s, int l)
+{
+ for( int i=0; i<l; i++)
+ {
+ if (!isprint((unsigned char)s[i]) )
+ {
+ return false;
+ }
+ }
+ return true;
+}
/**
* \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
+ * @param s string to check (uint8_t is just for prototyping. feel free to cast)
*/
std::string Util::CreateCleanString(std::string const &s)
{
for(unsigned int i=0; i<str.size(); i++)
{
- if(!isprint((unsigned char)str[i]))
+ if (!isprint((unsigned char)str[i]) )
{
str[i] = '.';
}
}
- if(str.size() > 0)
+ if (str.size() > 0 )
{
- if(!isprint((unsigned char)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] = ' ';
}
return str;
}
+/**
+ * \brief Weed out a string from the non-printable characters (in order
+ * to avoid corrupting the terminal of invocation when printing)
+ * @param s area to process (uint8_t is just for prototyping. feel free to cast)
+ * @param l area length to check
+ */
+std::string Util::CreateCleanString(uint8_t *s, int l)
+{
+ std::string str;
+
+ for( int i=0; i<l; i++)
+ {
+ if (!isprint((unsigned char)s[i]) )
+ {
+ str = str + '.';
+ }
+ else
+ {
+ str = str + (char )s[i];
+ }
+ }
+
+ return str;
+}
/**
* \brief Add a SEPARATOR to the end of the name is necessary
* @param pathname file/directory name to normalize
std::string name = pathname;
int size = name.size();
- if( name[size-1] != SEPARATOR_X && name[size-1] != SEPARATOR_WIN )
+ if ( name[size-1] != SEPARATOR_X && name[size-1] != SEPARATOR_WIN )
{
name += SEPARATOR;
}
std::string res = fullName;
int pos1 = res.rfind("/");
int pos2 = res.rfind("\\");
- if( pos1 > pos2)
+ if ( pos1 > pos2 )
{
res.resize(pos1);
}
std::string::size_type slash_pos = filename.rfind("/");
std::string::size_type backslash_pos = filename.rfind("\\");
slash_pos = slash_pos > backslash_pos ? slash_pos : backslash_pos;
- if(slash_pos != std::string::npos)
+ if (slash_pos != std::string::npos )
{
return filename.substr(slash_pos + 1);
}
return tmp;
}
+/**
+ * \brief Get both the date and time at the same time to avoid problem
+ * around midnight where the two calls 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
+ // Don't use Util::Format to accelerate execution of code
+ char tmpAll[80];
+ sprintf(tmpAll,"%s%03ld",tmp,milliseconds);
+
+ return tmpAll;
+}
+
+unsigned int Util::GetCurrentThreadID()
+{
+// FIXME the implementation is far from complete
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
+ return (unsigned int)GetCurrentThreadId();
+#else
+#ifdef __linux__
+ return 0;
+ // Doesn't work on fedora, but is in the man page...
+ //return (unsigned int)gettid();
+#else
+#ifdef __sun
+ return (unsigned int)thr_self();
+#else
+ //default implementation
+ return 0;
+#endif // __sun
+#endif // __linux__
+#endif // Win32
+}
+
+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 whether the processor we are working with is BigEndian or not
+ */
+bool Util::IsCurrentProcessorBigEndian()
+{
+#if defined(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 contain as many (if you are reading this from your
- * editor the following character is is backslash followed by zero
+ * editor the following character is backslash followed by zero
* that needed to be escaped with an extra backslash for doxygen) \\0
* as you want.
*/
/**
* \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
+ * editor the following character 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)
{
size_t l = strlen(s);
- if( l%2 )
+ if ( l%2 )
{
l++;
}
}
/**
- * \brief Safely compare two Dicom String:
- * - Both string should be of even lenght
- * - We allow padding of even lenght string by either a null
+ * \brief Safely check the equality of two Dicom String:
+ * - Both strings 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)
{
- // s2 is the string from the DICOM reference: 'MONOCHROME1'
+ // s2 is the string from the DICOM reference e.g. : 'MONOCHROME1'
std::string s1_even = s1; //Never change input parameter
std::string s2_even = DicomString( s2 );
- if( s1_even[s1_even.size()-1] == ' ')
+ if ( s1_even[s1_even.size()-1] == ' ' )
{
s1_even[s1_even.size()-1] = '\0'; //replace space character by null
}
return s1_even == s2_even;
}
-
-
/**
- * \brief tells us if the processor we are working with is BigEndian or not
+ * \brief Safely compare two Dicom String:
+ * - Both strings should be of even length
+ * - We allow padding of even length string by either a null
+ * character of a space
*/
-bool Util::IsCurrentProcessorBigEndian()
+bool Util::CompareDicomString(const std::string &s1, const char *s2, int op)
{
-#ifdef GDCM_WORDS_BIGENDIAN
- return true;
-#else
- return false;
-#endif
+ // s2 is the string from the DICOM reference e.g. : 'MONOCHROME1'
+ std::string s1_even = s1; //Never change input parameter
+ std::string s2_even = DicomString( s2 );
+ if ( s1_even[s1_even.size()-1] == ' ' )
+ {
+ s1_even[s1_even.size()-1] = '\0'; //replace space character by null
+ }
+ switch (op)
+ {
+ case GDCM_EQUAL :
+ return s1_even == s2_even;
+ case GDCM_DIFFERENT :
+ return s1_even != s2_even;
+ case GDCM_GREATER :
+ return s1_even > s2_even;
+ case GDCM_GREATEROREQUAL :
+ return s1_even >= s2_even;
+ case GDCM_LESS :
+ return s1_even < s2_even;
+ case GDCM_LESSOREQUAL :
+ return s1_even <= s2_even;
+ default :
+ gdcmDebugMacro(" Wrong operator : " << op);
+ return false;
+ }
}
-
-
#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
-
+/// \brief gets current M.A.C adress (for internal use only)
+int GetMacAddrSys ( unsigned char *addr );
int GetMacAddrSys ( unsigned char *addr )
{
#ifdef _WIN32
WSADATA WinsockData;
- if (WSAStartup(MAKEWORD(2, 0), &WinsockData) != 0)
+ if ( (WSAStartup(MAKEWORD(2, 0), &WinsockData)) != 0 )
{
- std::cerr << "This program requires Winsock 2.x!" << std::endl;
+ std::cerr << "in Get MAC Adress (internal) : This program requires Winsock 2.x!"
+ << std::endl;
return -1;
}
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);
{
j++;
dtmp = varBind[0].value.asnValue.number;
- std::cerr << "Interface #" << j << " type : " << dtmp << std::endl;
// Type 6 describes ethernet interfaces
if (dtmp == 6)
&& (varBind[1].value.asnValue.address.stream[4] == 0x00) )
{
// Ignore all dial-up networking adapters
- std::cerr << "Interface #" << j << " is a DUN adapter\n";
+ std::cerr << "in Get MAC Adress (internal) : 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
- std::cerr << "Interface #" << j << " is a NULL address\n";
+ std::cerr << "in Get MAC Adress (internal) : Interface #"
+ << j << " is a NULL address\n";
continue;
}
memcpy( addr, varBind[1].value.asnValue.address.stream, 6);
// implementation for POSIX system
-#ifdef __sun
+#if defined(CMAKE_HAVE_NET_IF_ARP_H) && defined(__sun)
//The POSIX version is broken anyway on Solaris, plus would require full
//root power
struct arpreq parpreq;
char **paddrs;
int sock, status=0;
- if(gethostname(hostname, MAXHOSTNAMELEN) != 0)
+ if (gethostname(hostname, MAXHOSTNAMELEN) != 0 )
{
- perror("gethostname");
+ perror("in Get MAC Adress (internal) : gethostname");
return -1;
}
phost = gethostbyname(hostname);
paddrs = phost->h_addr_list;
sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
- if(sock == -1)
+ if (sock == -1 )
{
- perror("sock");
+ perror("in Get MAC Adress (internal) : sock");
return -1;
}
memset(&parpreq, 0, sizeof(struct arpreq));
memcpy(&psa->sin_addr, *paddrs, sizeof(struct in_addr));
status = ioctl(sock, SIOCGARP, &parpreq);
- if(status == -1)
+ if (status == -1 )
{
- perror("SIOCGARP");
+ perror("in Get MAC Adress (internal) : SIOCGARP");
return -1;
}
memcpy(addr, parpreq.arp_ha.sa_data, 6);
// 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
+// We should investigate 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 )
+ if ( (sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0 )
{
return -1;
}
continue;
a = (unsigned char *) &sdlp->sdl_data[sdlp->sdl_nlen];
#else
- perror("No way to access hardware");
+ perror("in Get MAC Adress (internal) : 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");
+ // Not implemented platforms (or no cable !)
+ perror("in Get MAC Adress (internal) : There was a configuration problem on your plateform");
memset(addr,0,6);
return -1;
#endif //__sun
}
/**
- * \brief Gets the M.A.C. adress of the machine writting the DICOM image
+ * \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()
{
// 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];
- std::string macaddr;
-
+
int stat = GetMacAddrSys(addr);
- if (0 == stat)
+ if (stat == 0)
{
- 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)
{
- macaddr += Format("%2.2x", addr[i]);
- //if(i) macaddr += ".";
- //macaddr += Format("%i", (int)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);
}
- return macaddr;
+
+ return sres;
}
else
{
- gdcmVerboseMacro("Problem in finding the MAC Address");
+ gdcmWarningMacro("Problem in finding the MAC Address");
return "";
}
}
-/**
- * \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 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 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;
-}
-
/**
* \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 radical = root;
- if( !root.size() )
+ std::string prefix;
+ std::string append;
+ if ( root.empty() )
+ {
+ // gdcm UID prefix, as supplied by http://www.medicalconnections.co.uk
+ prefix = RootUID;
+ }
+ else
{
- // No root was specified use "GDCM" then
- // echo "gdcm" | od -b
- // 0000000 147 144 143 155 012
- radical = "147.144.143.155"; // special easter egg
+ prefix = root;
}
- // else
+
// A root was specified use it to forge our new UID:
- radical += Util::GetMACAddress();
- radical += ".";
- radical += Util::GetCurrentDate();
- radical += ".";
- radical += Util::GetCurrentTime();
+ append += ".";
+ //append += Util::GetMACAddress(); // to save CPU time
+ append += Util::GDCM_MAC_ADRESS;
+ append += ".";
+ append += Util::GetCurrentDateTime();
+ append += ".";
+ //Also add a mini random number just in case:
+ char tmp[10];
+ int r = (int) (100.0*rand()/RAND_MAX);
+ // Don't use Util::Format to accelerate the execution
+ sprintf(tmp,"%02d", r);
+ append += tmp;
+
+ // 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 radical;
+ return prefix + append;
}
-/**
- * \brief
- * @param os ostream to write to
- * @param val val
- */
-template <class T>
-std::ostream &binary_write(std::ostream &os, const T &val)
+void Util::SetRootUID(const std::string &root)
+{
+ if ( root.empty() )
+ RootUID = GDCM_UID;
+ else
+ RootUID = root;
+}
+
+const std::string &Util::GetRootUID()
{
- return os.write(reinterpret_cast<const char*>(&val), sizeof val);
+ return RootUID;
}
+//-------------------------------------------------------------------------
/**
* \brief binary_write binary_write
* @param os ostream to write to
- * @param val val
+ * @param val 16 bits value to write
*/
std::ostream &binary_write(std::ostream &os, const uint16_t &val)
{
-#ifdef GDCM_WORDS_BIGENDIAN
+#if defined(GDCM_WORDS_BIGENDIAN) || defined(GDCM_FORCE_BIGENDIAN_EMULATION)
uint16_t swap;
- swap = ((( val << 8 ) & 0x0ff00 ) | (( val >> 8 ) & 0x00ff ) );
+ swap = ( val << 8 | val >> 8 );
+
return os.write(reinterpret_cast<const char*>(&swap), 2);
#else
return os.write(reinterpret_cast<const char*>(&val), 2);
/**
* \brief binary_write binary_write
* @param os ostream to write to
- * @param val val
+ * @param val 32 bits value to write
*/
std::ostream &binary_write(std::ostream &os, const uint32_t &val)
{
-#ifdef GDCM_WORDS_BIGENDIAN
+#if defined(GDCM_WORDS_BIGENDIAN) || defined(GDCM_FORCE_BIGENDIAN_EMULATION)
uint32_t swap;
- swap = ( ((val<<24) & 0xff000000) | ((val<<8) & 0x00ff0000) |
- ((val>>8) & 0x0000ff00) | ((val>>24) & 0x000000ff) );
+ swap = ( (val<<24) | ((val<<8) & 0x00ff0000) |
+ ((val>>8) & 0x0000ff00) | (val>>24) );
return os.write(reinterpret_cast<const char*>(&swap), 4);
#else
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 double (64 bits) value to write
+ */
+std::ostream &binary_write(std::ostream &os, const double &val)
+{
+#if defined(GDCM_WORDS_BIGENDIAN) || defined(GDCM_FORCE_BIGENDIAN_EMULATION)
+ double swap;
+
+ char *beg = (char *)&swap;
+ char *end = beg + 7;
+ char t;
+ for (unsigned int i = 0; i<7; i++)
+ {
+ t = *beg;
+ *beg = *end;
+ *end = t;
+ beg++,
+ end--;
+ }
+ return os.write(reinterpret_cast<const char*>(&swap), 8);
+#else
+ return os.write(reinterpret_cast<const char*>(&val), 8);
+#endif //GDCM_WORDS_BIGENDIAN
+}
+
+
/**
* \brief binary_write binary_write
* @param os ostream to write to
- * @param val val
+ * @param val 8 bits characters aray to write
*/
std::ostream &binary_write(std::ostream &os, const char *val)
{
}
/**
- * \brief
+ * \brief binary_write binary_write
* @param os ostream to write to
- * @param val val
+ * @param val std::string value to write
*/
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 8 bits 'characters' aray to write
+ * @param len length of the 'value' to be written
+ */
+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 16 bits words aray to write
+ * @param len length (in bytes) of the 'value' to be written
+ */
+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
+// intermediate result before writting it.
+#if defined(GDCM_WORDS_BIGENDIAN) || defined(GDCM_FORCE_BIGENDIAN_EMULATION)
+ const int BUFFER_SIZE = 4096;
+ static char buffer[BUFFER_SIZE];
+ uint16_t *binArea16 = (uint16_t*)val; //for the const
+
+ // 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++)
+ {
+ uint16_t *pbuffer = (uint16_t*)buffer; //reinitialize pbuffer
+ for (int i = 0; i < BUFFER_SIZE/2; i++)
+ {
+ *pbuffer = *binArea16 >> 8 | *binArea16 << 8;
+ pbuffer++;
+ binArea16++;
+ }
+ os.write ( buffer, BUFFER_SIZE );
+ }
+ if ( remainingSize > 0)
+ {
+ uint16_t *pbuffer = (uint16_t*)buffer; //reinitialize pbuffer
+ for (int i = 0; i < remainingSize/2; i++)
+ {
+ *pbuffer = *binArea16 >> 8 | *binArea16 << 8;
+ pbuffer++;
+ binArea16++;
+ }
+ os.write ( buffer, remainingSize );
+ }
+ return os;
+#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