Program: gdcm
Module: $RCSfile: gdcmUtil.cxx,v $
Language: C++
- Date: $Date: 2005/01/17 16:37:00 $
- Version: $Revision: 1.102 $
+ Date: $Date: 2008/01/02 14:58:00 $
+ Version: $Revision: 1.190 $
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>
+#include <stdarg.h> // for va_list
// 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
-#if defined(_MSC_VER)
- #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 <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
#endif
#ifdef CMAKE_HAVE_NET_IF_DL_H
#include <net/if_dl.h>
#endif
-#ifdef __sun
- //#if defined(CMAKE_HAVE_NET_IF_ARP_H) && defined(__sun)
- // This is absolutely necesseray on SunOS
+#if defined(CMAKE_HAVE_NET_IF_ARP_H) && defined(__sun)
+ // This is absolutely necessary on SunOS
#include <net/if_arp.h>
#endif
-namespace gdcm
+// For GetCurrentThreadID()
+#ifdef __linux__
+ #include <sys/types.h>
+ #include <linux/unistd.h>
+#endif
+#ifdef __sun
+ #include <thread.h>
+#endif
+
+namespace GDCM_NAME_SPACE
{
+//-------------------------------------------------------------------------
+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...
+ */
+
+#if defined(GDCM_WORDS_BIGENDIAN) || defined(GDCM_FORCE_BIGENDIAN_EMULATION)
+ const uint16_t Util::FMIV = 0x0001;
+#else
+ const uint16_t Util::FMIV = 0x0100;
+#endif
+ uint8_t *Util::FileMetaInformationVersion = (uint8_t *)&FMIV;
+
+ std::string Util::GDCM_MAC_ADDRESS = GetMACAddress();
+
+//-------------------------------------------------------------------------
+// Public
/**
- * \ingroup Globals
* \brief Provide a better 'c++' approach for sprintf
* For example c code is:
- * sprintf(trash, "%04x|%04x", group , elem);
+ * char result[2048]; // hope 2048 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];
+ char buffer[2048]; // hope 2048 is enough
va_list args;
va_start(args, format);
vsprintf(buffer, format, args); //might be a security flaw
/**
- * \ingroup Globals
* \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);
}
/**
- * \ingroup Globals
* \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;
}
/**
- * \ingroup Globals
+ * \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)
+{
+ 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 Replaces all special characters
+ * @param s string to modify
+ * @param rep replacement char
+ */
+void Util::ReplaceSpecChar(std::string &s, std::string &rep)
+{
+ unsigned int s_size = s.size();
+ for(unsigned int i=0; i<s_size; i++)
+ {
+ if (! ( s[i] == '.' || s[i] == '%' || s[i] == '_'
+ || (s[i] >= '+' && s[i] <= '-')
+ || (s[i] >= 'a' && s[i] <= 'z')
+ || (s[i] >= '0' && s[i] <= '9')
+ || (s[i] >= 'A' && s[i] <= 'Z')))
+ {
+ s.replace(i, 1, rep);
+ }
+ }
+ // deal with Dicom strings trailing '\0'
+ if(s[s_size-1] == rep.c_str()[0])
+ s.erase(s_size-1, 1);
+}
+
/**
- * \ingroup Globals
- * \brief Add a SEPARATOR to the end of the name is necessary
+ * \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 if necessary
* @param pathname file/directory name to normalize
*/
std::string Util::NormalizePath(std::string const &pathname)
{
+/*
const char SEPARATOR_X = '/';
const char SEPARATOR_WIN = '\\';
+#ifdef _WIN32
+ const std::string SEPARATOR = "\\";
+#else
const std::string SEPARATOR = "/";
+#endif
+*/
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 )
+ if ( name[size-1] != GDCM_FILESEPARATOR )
{
- name += SEPARATOR;
+ name += GDCM_FILESEPARATOR;
}
return name;
}
/**
- * \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 res = fullName;
+/*
+
int pos1 = res.rfind("/");
int pos2 = res.rfind("\\");
- if( pos1 > pos2)
+ if ( pos1 > pos2 )
{
res.resize(pos1);
}
{
res.resize(pos2);
}
-
+*/
+ int pos = res.rfind(GDCM_FILESEPARATOR);
+ res.resize(pos);
return res;
}
/**
- * \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 filename = fullName;
-
+/*
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)
+ // At least with my gcc4.0.1, unfound char results in pos =4294967295 ...
+ //slash_pos = slash_pos > backslash_pos ? slash_pos : backslash_pos;
+ slash_pos = slash_pos < backslash_pos ? slash_pos : backslash_pos;
+*/
+ std::string::size_type slash_pos = filename.rfind(GDCM_FILESEPARATOR);
+ if (slash_pos != std::string::npos )
{
return filename.substr(slash_pos + 1);
}
}
/**
- * \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 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.
*/
}
/**
- * \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
+ * 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++;
}
}
/**
- * \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
- * character of a space
+ * \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;
}
-
-
/**
- * \ingroup Util
- * \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
+#ifdef __sgi
+static int SGIGetMacAddress(unsigned char *addr)
+{
+ FILE *f = popen("/etc/nvram eaddr","r");
+ if(f == 0)
+ {
+ return -1;
+ }
+ unsigned int x[6];
+ if(fscanf(f,"%02x:%02x:%02x:%02x:%02x:%02x",
+ x,x+1,x+2,x+3,x+4,x+5) != 6)
+ {
+ pclose(f);
+ return -1;
+ }
+ for(unsigned int i = 0; i < 6; i++)
+ {
+ addr[i] = static_cast<unsigned char>(x[i]);
+ }
+ return 0;
+}
+#endif
+/// \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); 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;
- 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);
return 0;
#endif //Win32 version
+#if defined(__sgi)
+ return SGIGetMacAddress(addr);
+#endif // __sgi
+
// 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
- 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;
- 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);
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
// 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 (or no Ethernet cable !)
+
+ /// \todo FIXME I wish we don't pollute command line applications when no Ethernet cable !
+ //perror("Probabely your computer is not connected on a network, therefore its MAC adress cannot be found (or there is a configuration problem on your platform)");
+
+ // But the following -> error: invalid use of 'this' in non-member function
+ //gdcmWarningMacro( "Probabely your computer is not connected on a network, therefore its MAC adress cannot be found (or there is a configuration problem on your platform)");
+
+ 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 length 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
// 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");
+ gdcmStaticWarningMacro("Problem in finding the MAC Address");
return "";
}
}
/**
- * \ingroup Util
+ * \brief Creates a new UID. As stipulated in the DICOM ref
+ * each time a DICOM image is created 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 prefix;
+ std::string append;
+ if ( root.empty() )
+ {
+ // gdcm UID prefix, as supplied by http://www.medicalconnections.co.uk
+ assert( !RootUID.empty() );
+ prefix = RootUID;
+ }
+ else
+ {
+ prefix = root;
+ }
+
+ // A root was specified use it to forge our new UID:
+ append += ".";
+ //append += Util::GetMACAddress(); // to save CPU time
+ if( !Util::GDCM_MAC_ADDRESS.empty() ) // When mac address was empty we would end up with a double . which is illegal
+ {
+ append += Util::GDCM_MAC_ADDRESS;
+ 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 )
+ {
+ gdcmStaticErrorMacro( "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 binary_write binary_write
+ * @param os ostream to write to
+ * @param val 16 bits value to write
+ */
+std::ostream &binary_write(std::ostream &os, const uint16_t &val)
+{
+#if defined(GDCM_WORDS_BIGENDIAN) || defined(GDCM_FORCE_BIGENDIAN_EMULATION)
+ uint16_t swap;
+ swap = ( val << 8 | val >> 8 );
+
+ return os.write(reinterpret_cast<const char*>(&swap), 2);
+#else
+ 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 32 bits value to write
+ */
+std::ostream &binary_write(std::ostream &os, const uint32_t &val)
+{
+#if defined(GDCM_WORDS_BIGENDIAN) || defined(GDCM_FORCE_BIGENDIAN_EMULATION)
+ uint32_t swap;
+ 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 = val;
+
+ 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 8 bits characters aray to write
+ */
+std::ostream &binary_write(std::ostream &os, const char *val)
+{
+ return os.write(val, strlen(val));
+}
+
+/**
+ * \brief binary_write binary_write
+ * @param os ostream to write to
+ * @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
+}
+
+std::string Util::ConvertToMD5 (std::string &inPszToCrypt)
+{
+ char *szChar = new char[ inPszToCrypt.size()+1 ];
+ char *szHexOutput = new char[ 16 * 2 + 1 ];
+ int nLen,nDi;
+ strcpy( szChar, inPszToCrypt.c_str() );
+ // création du code md5
+ nLen = strlen( szChar );
+ md5_state_t state;
+ uint8_t digest[ 16 ];
+ md5_init ( &state );
+ md5_append ( &state, (const uint8_t *)szChar, nLen);
+ md5_finish ( &state, digest );
+ for ( nDi = 0; nDi < 16; nDi++)
+ sprintf( szHexOutput + nDi * 2, "%02x", digest[ nDi ] );
+ szHexOutput[16 * 2]=0;
+ delete [] szChar;
+ std::string md5String=szHexOutput;
+ delete [] szHexOutput;
+ return md5String;
+}
+
+//-------------------------------------------------------------------------
+// Protected
+
+//-------------------------------------------------------------------------
+// Private
+/**
* \brief Return the IP adress of the machine writting the DICOM image
*/
std::string Util::GetIPAddress()
// 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
+#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
+#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);
char szHostName[HOST_NAME_MAX+1];
int r = gethostname(szHostName, HOST_NAME_MAX);
- if( r == 0 )
+ if ( r == 0 )
{
// Get host adresses
struct hostent *pHost = gethostbyname(szHostName);
{
for( int j = 0; j<pHost->h_length; j++ )
{
- if( j > 0 ) str += ".";
+ 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__)
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
WSACleanup();
#endif
return str;
}
-/**
- * \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)
+void Util::hfpswap(double *a, double *b)
{
- std::string radical = root;
- if( !root.size() )
- {
- // 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
- }
- // else
- // A root was specified use it to forge our new UID:
- radical += Util::GetMACAddress();
- radical += ".";
- radical += Util::GetCurrentDate();
- radical += ".";
- radical += Util::GetCurrentTime();
-
- return radical;
+ double tmp;
+ tmp=*a;
+ *a=*b;
+ *b=tmp;
}
-template <class T>
-std::ostream &binary_write(std::ostream &os, const T &val)
-{
- return os.write(reinterpret_cast<const char*>(&val), sizeof val);
-}
+// for MD5
+/*
+ Copyright (C) 1999, 2000, 2002 Aladdin Enterprises. All rights reserved.
-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);
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+
+ L. Peter Deutsch
+
+ ghost@aladdin.com
+ */
+
+/* $Id: gdcmUtil.cxx,v 1.190 2008/01/02 14:58:00 malaterre Exp $ */
+
+/*
+ Independent implementation of MD5 (RFC 1321).
+ This code implements the MD5 Algorithm defined in RFC 1321, whose
+ text is available at
+
+ http://www.ietf.org/rfc/rfc1321.txt
+
+ The code is derived from the text of the RFC, including the test suite
+ (section A.5) but excluding the rest of Appendix A. It does not include
+ any code or documentation that is identified in the RFC as being
+ copyrighted.
+
+ The original and principal author of md5.c is L. Peter Deutsch
+ <ghost@aladdin.com>. Other authors are noted in the change history
+ that follows (in reverse chronological order):
+
+ 2002-04-13 lpd Clarified derivation from RFC 1321; now handles byte order
+ either statically or dynamically; added missing #include <string.h>
+ in library.
+ 2002-03-11 lpd Corrected argument list for main(), and added int return
+ type, in test program and T value program.
+ 2002-02-21 lpd Added missing #include <stdio.h> in test program.
+ 2000-07-03 lpd Patched to eliminate warnings about "constant is
+ unsigned in ANSI C, signed in traditional"; made test program
+ self-checking.
+ 1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
+ 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5).
+ 1999-05-03 lpd Original version.
+ */
+
+//#include "md5.h"
+//#include <string.h>
+
+#undef BYTE_ORDER /* 1 = big-endian, -1 = little-endian, 0 = unknown */
+#ifdef ARCH_IS_BIG_ENDIAN
+# define BYTE_ORDER (ARCH_IS_BIG_ENDIAN ? 1 : -1)
#else
- return os.write(reinterpret_cast<const char*>(&val), 2);
-#endif //GDCM_WORDS_BIGENDIAN
-}
+# define BYTE_ORDER 0
+#endif
-std::ostream &binary_write(std::ostream &os, const uint32_t &val)
+
+#define T_MASK ((uint16_t)~0)
+#define T1 /* 0xd76aa478 */ (T_MASK ^ 0x28955b87)
+#define T2 /* 0xe8c7b756 */ (T_MASK ^ 0x173848a9)
+#define T3 0x242070db
+#define T4 /* 0xc1bdceee */ (T_MASK ^ 0x3e423111)
+#define T5 /* 0xf57c0faf */ (T_MASK ^ 0x0a83f050)
+#define T6 0x4787c62a
+#define T7 /* 0xa8304613 */ (T_MASK ^ 0x57cfb9ec)
+#define T8 /* 0xfd469501 */ (T_MASK ^ 0x02b96afe)
+#define T9 0x698098d8
+#define T10 /* 0x8b44f7af */ (T_MASK ^ 0x74bb0850)
+#define T11 /* 0xffff5bb1 */ (T_MASK ^ 0x0000a44e)
+#define T12 /* 0x895cd7be */ (T_MASK ^ 0x76a32841)
+#define T13 0x6b901122
+#define T14 /* 0xfd987193 */ (T_MASK ^ 0x02678e6c)
+#define T15 /* 0xa679438e */ (T_MASK ^ 0x5986bc71)
+#define T16 0x49b40821
+#define T17 /* 0xf61e2562 */ (T_MASK ^ 0x09e1da9d)
+#define T18 /* 0xc040b340 */ (T_MASK ^ 0x3fbf4cbf)
+#define T19 0x265e5a51
+#define T20 /* 0xe9b6c7aa */ (T_MASK ^ 0x16493855)
+#define T21 /* 0xd62f105d */ (T_MASK ^ 0x29d0efa2)
+#define T22 0x02441453
+#define T23 /* 0xd8a1e681 */ (T_MASK ^ 0x275e197e)
+#define T24 /* 0xe7d3fbc8 */ (T_MASK ^ 0x182c0437)
+#define T25 0x21e1cde6
+#define T26 /* 0xc33707d6 */ (T_MASK ^ 0x3cc8f829)
+#define T27 /* 0xf4d50d87 */ (T_MASK ^ 0x0b2af278)
+#define T28 0x455a14ed
+#define T29 /* 0xa9e3e905 */ (T_MASK ^ 0x561c16fa)
+#define T30 /* 0xfcefa3f8 */ (T_MASK ^ 0x03105c07)
+#define T31 0x676f02d9
+#define T32 /* 0x8d2a4c8a */ (T_MASK ^ 0x72d5b375)
+#define T33 /* 0xfffa3942 */ (T_MASK ^ 0x0005c6bd)
+#define T34 /* 0x8771f681 */ (T_MASK ^ 0x788e097e)
+#define T35 0x6d9d6122
+#define T36 /* 0xfde5380c */ (T_MASK ^ 0x021ac7f3)
+#define T37 /* 0xa4beea44 */ (T_MASK ^ 0x5b4115bb)
+#define T38 0x4bdecfa9
+#define T39 /* 0xf6bb4b60 */ (T_MASK ^ 0x0944b49f)
+#define T40 /* 0xbebfbc70 */ (T_MASK ^ 0x4140438f)
+#define T41 0x289b7ec6
+#define T42 /* 0xeaa127fa */ (T_MASK ^ 0x155ed805)
+#define T43 /* 0xd4ef3085 */ (T_MASK ^ 0x2b10cf7a)
+#define T44 0x04881d05
+#define T45 /* 0xd9d4d039 */ (T_MASK ^ 0x262b2fc6)
+#define T46 /* 0xe6db99e5 */ (T_MASK ^ 0x1924661a)
+#define T47 0x1fa27cf8
+#define T48 /* 0xc4ac5665 */ (T_MASK ^ 0x3b53a99a)
+#define T49 /* 0xf4292244 */ (T_MASK ^ 0x0bd6ddbb)
+#define T50 0x432aff97
+#define T51 /* 0xab9423a7 */ (T_MASK ^ 0x546bdc58)
+#define T52 /* 0xfc93a039 */ (T_MASK ^ 0x036c5fc6)
+#define T53 0x655b59c3
+#define T54 /* 0x8f0ccc92 */ (T_MASK ^ 0x70f3336d)
+#define T55 /* 0xffeff47d */ (T_MASK ^ 0x00100b82)
+#define T56 /* 0x85845dd1 */ (T_MASK ^ 0x7a7ba22e)
+#define T57 0x6fa87e4f
+#define T58 /* 0xfe2ce6e0 */ (T_MASK ^ 0x01d3191f)
+#define T59 /* 0xa3014314 */ (T_MASK ^ 0x5cfebceb)
+#define T60 0x4e0811a1
+#define T61 /* 0xf7537e82 */ (T_MASK ^ 0x08ac817d)
+#define T62 /* 0xbd3af235 */ (T_MASK ^ 0x42c50dca)
+#define T63 0x2ad7d2bb
+#define T64 /* 0xeb86d391 */ (T_MASK ^ 0x14792c6e)
+
+
+void
+Util::md5_process(md5_state_t *pms, const uint8_t *data /*[64]*/)
{
-#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);
+ uint16_t
+ a = pms->abcd[0], b = pms->abcd[1],
+ c = pms->abcd[2], d = pms->abcd[3];
+ uint16_t t;
+
+#if BYTE_ORDER > 0
+ /* Define storage only for big-endian CPUs. */
+ uint16_t X[16];
#else
- return os.write(reinterpret_cast<const char*>(&val), 4);
-#endif //GDCM_WORDS_BIGENDIAN
+ /* Define storage for little-endian or both types of CPUs. */
+ uint16_t xbuf[16];
+ const uint16_t *X;
+#endif
+ {
+#if BYTE_ORDER == 0
+/*
+ * Determine dynamically whether this is a big-endian or
+ * little-endian machine, since we can use a more efficient
+ * algorithm on the latter.
+ */
+static const int w = 1;
+
+if (*((const uint8_t *)&w)) /* dynamic little-endian */
+#endif
+#if BYTE_ORDER <= 0 /* little-endian */
+{
+ /*
+ * On little-endian machines, we can process properly aligned
+ * data without copying it.
+ */
+ if (!((data - (const uint8_t *)0) & 3)) {
+ /* data are properly aligned */
+ X = (const uint16_t *)data;
+ } else {
+ /* not aligned */
+ memcpy(xbuf, data, 64);
+ X = xbuf;
+ }
}
+#endif
+#if BYTE_ORDER == 0
+else /* dynamic big-endian */
+#endif
+#if BYTE_ORDER >= 0 /* big-endian */
+{
+ /*
+ * On big-endian machines, we must arrange the bytes in the
+ * right order.
+ */
+ const uint8_t *xp = data;
+ int i;
+
+# if BYTE_ORDER == 0
+ X = xbuf; /* (dynamic only) */
+# else
+# define xbuf /* (static only) */
+# endif
+ for (i = 0; i < 16; ++i, xp += 4)
+ xbuf[i] = xp[0] + (xp[1] << 8) + (xp[2] << 16) + (xp[3] << 24);
+ }
+#endif
+ }
-std::ostream &binary_write(std::ostream &os, const char *val)
+#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
+
+ /* Round 1. */
+ /* Let [abcd k s i] denote the operation
+ a = b + ((a + F(b,c,d) + X[k] + T[i]) <<< s). */
+
+#define F(x, y, z) (((x) & (y)) | (~(x) & (z)))
+#define SET(a, b, c, d, k, s, Ti) \
+ t = a + F(b,c,d) + X[k] + Ti;\
+ a = ROTATE_LEFT(t, s) + b
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 0, 7, T1);
+ SET(d, a, b, c, 1, 12, T2);
+ SET(c, d, a, b, 2, 17, T3);
+ SET(b, c, d, a, 3, 22, T4);
+ SET(a, b, c, d, 4, 7, T5);
+ SET(d, a, b, c, 5, 12, T6);
+ SET(c, d, a, b, 6, 17, T7);
+ SET(b, c, d, a, 7, 22, T8);
+ SET(a, b, c, d, 8, 7, T9);
+ SET(d, a, b, c, 9, 12, T10);
+ SET(c, d, a, b, 10, 17, T11);
+ SET(b, c, d, a, 11, 22, T12);
+ SET(a, b, c, d, 12, 7, T13);
+ SET(d, a, b, c, 13, 12, T14);
+ SET(c, d, a, b, 14, 17, T15);
+ SET(b, c, d, a, 15, 22, T16);
+#undef SET
+ /* Round 2. */
+ /* Let [abcd k s i] denote the operation
+ a = b + ((a + G(b,c,d) + X[k] + T[i]) <<< s). */
+
+#define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))
+#define SET(a, b, c, d, k, s, Ti)\
+ t = a + G(b,c,d) + X[k] + Ti; \
+ a = ROTATE_LEFT(t, s) + b
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 1, 5, T17);
+ SET(d, a, b, c, 6, 9, T18);
+ SET(c, d, a, b, 11, 14, T19);
+ SET(b, c, d, a, 0, 20, T20);
+ SET(a, b, c, d, 5, 5, T21);
+ SET(d, a, b, c, 10, 9, T22);
+ SET(c, d, a, b, 15, 14, T23);
+ SET(b, c, d, a, 4, 20, T24);
+ SET(a, b, c, d, 9, 5, T25);
+ SET(d, a, b, c, 14, 9, T26);
+ SET(c, d, a, b, 3, 14, T27);
+ SET(b, c, d, a, 8, 20, T28);
+ SET(a, b, c, d, 13, 5, T29);
+ SET(d, a, b, c, 2, 9, T30);
+ SET(c, d, a, b, 7, 14, T31);
+ SET(b, c, d, a, 12, 20, T32);
+#undef SET
+ /* Round 3. */
+ /* Let [abcd k s t] denote the operation
+ a = b + ((a + H(b,c,d) + X[k] + T[i]) <<< s). */
+#define H(x, y, z) ((x) ^ (y) ^ (z))
+#define SET(a, b, c, d, k, s, Ti)\
+ t = a + H(b,c,d) + X[k] + Ti; \
+ a = ROTATE_LEFT(t, s) + b
+
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 5, 4, T33);
+ SET(d, a, b, c, 8, 11, T34);
+ SET(c, d, a, b, 11, 16, T35);
+ SET(b, c, d, a, 14, 23, T36);
+ SET(a, b, c, d, 1, 4, T37);
+ SET(d, a, b, c, 4, 11, T38);
+ SET(c, d, a, b, 7, 16, T39);
+ SET(b, c, d, a, 10, 23, T40);
+ SET(a, b, c, d, 13, 4, T41);
+ SET(d, a, b, c, 0, 11, T42);
+ SET(c, d, a, b, 3, 16, T43);
+ SET(b, c, d, a, 6, 23, T44);
+ SET(a, b, c, d, 9, 4, T45);
+ SET(d, a, b, c, 12, 11, T46);
+ SET(c, d, a, b, 15, 16, T47);
+ SET(b, c, d, a, 2, 23, T48);
+#undef SET
+ /* Round 4. */
+ /* Let [abcd k s t] denote the operation
+ a = b + ((a + I(b,c,d) + X[k] + T[i]) <<< s). */
+#define I(x, y, z) ((y) ^ ((x) | ~(z)))
+#define SET(a, b, c, d, k, s, Ti)\
+ t = a + I(b,c,d) + X[k] + Ti; \
+ a = ROTATE_LEFT(t, s) + b
+
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 0, 6, T49);
+ SET(d, a, b, c, 7, 10, T50);
+ SET(c, d, a, b, 14, 15, T51);
+ SET(b, c, d, a, 5, 21, T52);
+ SET(a, b, c, d, 12, 6, T53);
+ SET(d, a, b, c, 3, 10, T54);
+ SET(c, d, a, b, 10, 15, T55);
+ SET(b, c, d, a, 1, 21, T56);
+ SET(a, b, c, d, 8, 6, T57);
+ SET(d, a, b, c, 15, 10, T58);
+ SET(c, d, a, b, 6, 15, T59);
+ SET(b, c, d, a, 13, 21, T60);
+ SET(a, b, c, d, 4, 6, T61);
+ SET(d, a, b, c, 11, 10, T62);
+ SET(c, d, a, b, 2, 15, T63);
+ SET(b, c, d, a, 9, 21, T64);
+
+#undef SET
+ /* Then perform the following additions. (That is increment each
+ of the four registers by the value it had before this block
+ was started.) */
+ pms->abcd[0] += a;
+ pms->abcd[1] += b;
+ pms->abcd[2] += c;
+ pms->abcd[3] += d;
+}
+void
+Util::md5_init(md5_state_t *pms)
{
- return os.write(val, strlen(val));
+ pms->count[0] = pms->count[1] = 0;
+ pms->abcd[0] = 0x67452301;
+ pms->abcd[1] = /*0xefcdab89*/ T_MASK ^ 0x10325476;
+ pms->abcd[2] = /*0x98badcfe*/ T_MASK ^ 0x67452301;
+ pms->abcd[3] = 0x10325476;
}
-std::ostream &binary_write(std::ostream &os, std::string const &val)
+
+void
+Util::md5_append(md5_state_t *pms, const uint8_t *data, int nbytes)
{
- return os.write(val.c_str(), val.size());
+ const uint8_t *p = data;
+ int left = nbytes;
+ int offset = (pms->count[0] >> 3) & 63;
+ uint16_t nbits = (uint16_t)(nbytes << 3);
+ if (nbytes <= 0)
+ return;
+ /* Update the message length. */
+ pms->count[1] += nbytes >> 29;
+ pms->count[0] += nbits;
+ if (pms->count[0] < nbits)
+ pms->count[1]++;
+ /* Process an initial partial block. */
+ if (offset) {
+ int copy = (offset + nbytes > 64 ? 64 - offset : nbytes);
+ memcpy(pms->buf + offset, p, copy);
+ if (offset + copy < 64)
+ return;
+ p += copy;
+ left -= copy;
+ md5_process(pms, pms->buf);
+ }
+ /* Process full blocks. */
+ for (; left >= 64; p += 64, left -= 64)
+ md5_process(pms, p);
+ /* Process a final partial block. */
+ if (left)
+ memcpy(pms->buf, p, left);
+}
+void
+Util::md5_finish(md5_state_t *pms, uint8_t digest[16])
+{
+ static const uint8_t pad[64] = {
+ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ };
+
+ uint8_t data[8];
+ int i;
+ /* Save the length before padding. */
+ for (i = 0; i < 8; ++i)
+ data[i] = (uint8_t)(pms->count[i >> 2] >> ((i & 3) << 3));
+ /* Pad to 56 bytes mod 64. */
+ md5_append(pms, pad, ((55 - (pms->count[0] >> 3)) & 63) + 1);
+ /* Append the length. */
+ md5_append(pms, data, 8);
+ for (i = 0; i < 16; ++i)
+ digest[i] = (uint8_t)(pms->abcd[i >> 2] >> ((i & 3) << 3));
}
+//-------------------------------------------------------------------------
} // end namespace gdcm
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff