Program: gdcm
Module: $RCSfile: gdcmUtil.cxx,v $
Language: C++
- Date: $Date: 2005/01/07 23:44:46 $
- Version: $Revision: 1.80 $
+ Date: $Date: 2005/01/17 17:26:55 $
+ Version: $Revision: 1.106 $
Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
l'Image). All rights reserved. See Doc/License.txt or
#endif
#endif
+// For GetMACAddress
+#ifdef _WIN32
+ #include <snmp.h>
+ #include <conio.h>
+#else
+ #include <unistd.h>
+ #include <stdlib.h>
+ #include <string.h>
+ #include <sys/types.h>
+#endif
+
+// How do I do that in CMake ?
+#ifdef __APPLE__
+ #define HAVE_SA_LEN
+#endif //APPLE
+
+#ifdef CMAKE_HAVE_SYS_IOCTL_H
+ #include <sys/ioctl.h> // For SIOCGIFCONF on Linux
+#endif
+#ifdef CMAKE_HAVE_SYS_SOCKET_H
+ #include <sys/socket.h>
+#endif
+#ifdef CMAKE_HAVE_SYS_SOCKIO_H
+ #include <sys/sockio.h> // For SIOCGIFCONF on SunOS
+#endif
+#ifdef CMAKE_HAVE_NET_IF_H
+ #include <net/if.h>
+#endif
+#ifdef CMAKE_HAVE_NETINET_IN_H
+ #include <netinet/in.h> //For IPPROTO_IP
+#endif
+#ifdef CMAKE_HAVE_NET_IF_DL_H
+ #include <net/if_dl.h>
+#endif
+#if defined(CMAKE_HAVE_NET_IF_ARP_H) && defined(__sun)
+ // This is absolutely necesseray on SunOS
+ #include <net/if_arp.h>
+#endif
+
namespace gdcm
{
/**
* \ingroup Globals
* \brief Provide a better 'c++' approach for sprintf
* For example c code is:
- * sprintf(trash, "%04x|%04x", group , element);
+ * sprintf(trash, "%04x|%04x", group , elem);
*
- * c++ is
+ * c++ code is
* std::ostringstream buf;
* buf << std::right << std::setw(4) << std::setfill('0') << std::hex
* << group << "|" << std::right << std::setw(4) << std::setfill('0')
- * << std::hex << element;
+ * << std::hex << elem;
* buf.str();
+ *
+ * gdcm style code is
+ * Format("%04x|%04x", group , elem);
*/
std::string Util::Format(const char *format, ...)
*/
bool Util::IsCurrentProcessorBigEndian()
{
- uint16_t intVal = 1;
- uint8_t bigEndianRepr[4] = { 0x00, 0x00, 0x00, 0x01 };
- int res = memcmp(reinterpret_cast<const void*>(&intVal),
- reinterpret_cast<const void*>(bigEndianRepr), 4);
- if (res == 0)
- return true;
- else
- return false;
+#ifdef GDCM_WORDS_BIGENDIAN
+ return true;
+#else
+ return false;
+#endif
}
-#include <fcntl.h>
-#include <stdlib.h>
-#include <string.h>
#ifdef _WIN32
-#include <snmp.h>
-#include <conio.h>
typedef BOOL(WINAPI * pSnmpExtensionInit) (
IN DWORD dwTimeZeroReference,
OUT HANDLE * hPollForTrapEvent,
typedef BOOL(WINAPI * pSnmpExtensionInitEx) (
OUT AsnObjectIdentifier * supportedView);
-#else
-#include <strings.h> //for bzero on unix
#endif //_WIN32
-#ifdef __linux__
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <linux/if.h>
-#endif
-
-#ifdef __HP_aCC
-#include <netio.h>
-#endif
-#ifdef _AIX
-#include <sys/ndd_var.h>
-#include <sys/kinfo.h>
-#endif
-
-long GetMacAddrSys ( u_char *addr)
+int GetMacAddrSys ( unsigned char *addr )
{
#ifdef _WIN32
WSADATA WinsockData;
- if (WSAStartup(MAKEWORD(2, 0), &WinsockData) != 0) {
- fprintf(stderr, "This program requires Winsock 2.x!\n");
- return -1;
+ if (WSAStartup(MAKEWORD(2, 0), &WinsockData) != 0)
+ {
+ std::cerr << "This program requires Winsock 2.x!" << std::endl;
+ return -1;
}
- HINSTANCE m_hInst;
- pSnmpExtensionInit m_Init;
- pSnmpExtensionInitEx m_InitEx;
- pSnmpExtensionQuery m_Query;
- pSnmpExtensionTrap m_Trap;
HANDLE PollForTrapEvent;
AsnObjectIdentifier SupportedView;
- UINT OID_ifEntryType[] = {
- 1, 3, 6, 1, 2, 1, 2, 2, 1, 3
- };
- UINT OID_ifEntryNum[] = {
- 1, 3, 6, 1, 2, 1, 2, 1
- };
- UINT OID_ipMACEntAddr[] = {
- 1, 3, 6, 1, 2, 1, 2, 2, 1, 6
- }; //, 1 ,6 };
- AsnObjectIdentifier MIB_ifMACEntAddr =
- { sizeof(OID_ipMACEntAddr) / sizeof(UINT), OID_ipMACEntAddr };
+ UINT OID_ifEntryType[] = { 1, 3, 6, 1, 2, 1, 2, 2, 1, 3 };
+ UINT OID_ifEntryNum[] = { 1, 3, 6, 1, 2, 1, 2, 1 };
+ UINT OID_ipMACEntAddr[] = { 1, 3, 6, 1, 2, 1, 2, 2, 1, 6 };
+ AsnObjectIdentifier MIB_ifMACEntAddr = {
+ sizeof(OID_ipMACEntAddr) / sizeof(UINT), OID_ipMACEntAddr };
AsnObjectIdentifier MIB_ifEntryType = {
- sizeof(OID_ifEntryType) / sizeof(UINT), OID_ifEntryType
- };
+ sizeof(OID_ifEntryType) / sizeof(UINT), OID_ifEntryType };
AsnObjectIdentifier MIB_ifEntryNum = {
- sizeof(OID_ifEntryNum) / sizeof(UINT), OID_ifEntryNum
- };
+ sizeof(OID_ifEntryNum) / sizeof(UINT), OID_ifEntryNum };
RFC1157VarBindList varBindList;
RFC1157VarBind varBind[2];
AsnInteger errorStatus;
AsnInteger errorIndex;
- AsnObjectIdentifier MIB_NULL = {
- 0, 0
- };
+ AsnObjectIdentifier MIB_NULL = { 0, 0 };
int ret;
int dtmp;
int i = 0, j = 0;
BOOL found = FALSE;
- char TempEthernet[13];
- m_Init = NULL;
- m_InitEx = NULL;
- m_Query = NULL;
- m_Trap = NULL;
-
- /* Load the SNMP dll and get the addresses of the functions
- necessary */
- m_hInst = LoadLibrary("inetmib1.dll");
- if (m_hInst < (HINSTANCE) HINSTANCE_ERROR) {
- m_hInst = NULL;
- return -1;
+
+ // 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;
}
- m_Init =
+ pSnmpExtensionInit m_Init =
(pSnmpExtensionInit) GetProcAddress(m_hInst, "SnmpExtensionInit");
- m_InitEx =
- (pSnmpExtensionInitEx) GetProcAddress(m_hInst,
- "SnmpExtensionInitEx");
- m_Query =
- (pSnmpExtensionQuery) GetProcAddress(m_hInst,
- "SnmpExtensionQuery");
- m_Trap =
+ 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);
varBind[0].name = MIB_NULL;
varBind[1].name = MIB_NULL;
- /* Copy in the OID to find the number of entries in the
- Inteface table */
- varBindList.len = 1; /* Only retrieving one item */
+ // Copy in the OID to find the number of entries in the
+ // Inteface table
+ varBindList.len = 1; // Only retrieving one item
SNMP_oidcpy(&varBind[0].name, &MIB_ifEntryNum);
- ret =
- m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
- &errorIndex);
- printf("# of adapters in this system : %i\n",
- varBind[0].value.asnValue.number); varBindList.len = 2;
+ ret = m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
+ &errorIndex);
+// printf("# of adapters in this system : %i\n",
+// varBind[0].value.asnValue.number);
+ varBindList.len = 2;
- /* Copy in the OID of ifType, the type of interface */
+ // Copy in the OID of ifType, the type of interface
SNMP_oidcpy(&varBind[0].name, &MIB_ifEntryType);
- /* Copy in the OID of ifPhysAddress, the address */
+ // Copy in the OID of ifPhysAddress, the address
SNMP_oidcpy(&varBind[1].name, &MIB_ifMACEntAddr);
- do {
-
- /* Submit the query. Responses will be loaded into varBindList.
- We can expect this call to succeed a # of times corresponding
- to the # of adapters reported to be in the system */
- ret =
- m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
- &errorIndex); if (!ret) ret = 1;
-
- else
- /* Confirm that the proper type has been returned */
- ret =
- SNMP_oidncmp(&varBind[0].name, &MIB_ifEntryType,
- MIB_ifEntryType.idLength); if (!ret) {
- j++;
- dtmp = varBind[0].value.asnValue.number;
- printf("Interface #%i type : %i\n", j, dtmp);
-
- /* Type 6 describes ethernet interfaces */
- if (dtmp == 6) {
-
- /* Confirm that we have an address here */
- ret =
- SNMP_oidncmp(&varBind[1].name, &MIB_ifMACEntAddr,
- MIB_ifMACEntAddr.idLength);
- if ((!ret)
- && (varBind[1].value.asnValue.address.stream != NULL)) {
- if (
- (varBind[1].value.asnValue.address.stream[0] ==
- 0x44)
- && (varBind[1].value.asnValue.address.stream[1] ==
- 0x45)
- && (varBind[1].value.asnValue.address.stream[2] ==
- 0x53)
- && (varBind[1].value.asnValue.address.stream[3] ==
- 0x54)
- && (varBind[1].value.asnValue.address.stream[4] ==
- 0x00)) {
-
- /* Ignore all dial-up networking adapters */
- printf("Interface #%i is a DUN adapter\n", j);
- continue;
- }
- if (
- (varBind[1].value.asnValue.address.stream[0] ==
- 0x00)
- && (varBind[1].value.asnValue.address.stream[1] ==
- 0x00)
- && (varBind[1].value.asnValue.address.stream[2] ==
- 0x00)
- && (varBind[1].value.asnValue.address.stream[3] ==
- 0x00)
- && (varBind[1].value.asnValue.address.stream[4] ==
- 0x00)
- && (varBind[1].value.asnValue.address.stream[5] ==
- 0x00)) {
-
- /* Ignore NULL addresses returned by other network
- interfaces */
- printf("Interface #%i is a NULL address\n", j);
- continue;
- }
- //sprintf((char*)addr, "%02x%02x%02x%02x%02x%02x",
- // varBind[1].value.asnValue.address.stream[0],
- // varBind[1].value.asnValue.address.stream[1],
- // varBind[1].value.asnValue.address.stream[2],
- // varBind[1].value.asnValue.address.stream[3],
- // varBind[1].value.asnValue.address.stream[4],
- // varBind[1].value.asnValue.address.stream[5]);
- memcpy( addr, varBind[1].value.asnValue.address.stream, 6);
- //printf("MAC Address of interface #%i: %s\n", j, addr);
- }
- }
- }
- } while (!ret); /* Stop only on an error. An error will occur
- when we go exhaust the list of interfaces to
- be examined */
- //getch();
-
- /* Free the bindings */
- SNMP_FreeVarBind(&varBind[0]);
- SNMP_FreeVarBind(&varBind[1]);
- return 0;
-#endif //_WIN32
-
-/* implementation for Linux */
-#ifdef __linux__
- struct ifreq ifr;
- struct ifreq *IFR;
- struct ifconf ifc;
- char buf[1024];
- int s, i;
- int ok = 0;
-
- s = socket(AF_INET, SOCK_DGRAM, 0);
- if (s==-1) {
- return -1;
- }
+ do
+ {
+ // Submit the query. Responses will be loaded into varBindList.
+ // We can expect this call to succeed a # of times corresponding
+ // to the # of adapters reported to be in the system
+ ret = m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
+ &errorIndex);
+ if (!ret)
+ {
+ ret = 1;
+ }
+ else
+ {
+ // Confirm that the proper type has been returned
+ ret = SNMP_oidncmp(&varBind[0].name, &MIB_ifEntryType,
+ MIB_ifEntryType.idLength);
+ }
+ if (!ret)
+ {
+ j++;
+ dtmp = varBind[0].value.asnValue.number;
+ std::cerr << "Interface #" << j << " type : " << dtmp << std::endl;
- ifc.ifc_len = sizeof(buf);
- ifc.ifc_buf = buf;
- ioctl(s, SIOCGIFCONF, &ifc);
-
- IFR = ifc.ifc_req;
- for (i = ifc.ifc_len / sizeof(struct ifreq); --i >= 0; IFR++) {
-
- strcpy(ifr.ifr_name, IFR->ifr_name);
- if (ioctl(s, SIOCGIFFLAGS, &ifr) == 0) {
- if (! (ifr.ifr_flags & IFF_LOOPBACK)) {
- if (ioctl(s, SIOCGIFHWADDR, &ifr) == 0) {
- ok = 1;
- break;
- }
+ // Type 6 describes ethernet interfaces
+ if (dtmp == 6)
+ {
+ // Confirm that we have an address here
+ ret = SNMP_oidncmp(&varBind[1].name, &MIB_ifMACEntAddr,
+ MIB_ifMACEntAddr.idLength);
+ if ( !ret && varBind[1].value.asnValue.address.stream != NULL )
+ {
+ if ( (varBind[1].value.asnValue.address.stream[0] == 0x44)
+ && (varBind[1].value.asnValue.address.stream[1] == 0x45)
+ && (varBind[1].value.asnValue.address.stream[2] == 0x53)
+ && (varBind[1].value.asnValue.address.stream[3] == 0x54)
+ && (varBind[1].value.asnValue.address.stream[4] == 0x00) )
+ {
+ // Ignore all dial-up networking adapters
+ std::cerr << "Interface #" << j << " is a DUN adapter\n";
+ continue;
+ }
+ if ( (varBind[1].value.asnValue.address.stream[0] == 0x00)
+ && (varBind[1].value.asnValue.address.stream[1] == 0x00)
+ && (varBind[1].value.asnValue.address.stream[2] == 0x00)
+ && (varBind[1].value.asnValue.address.stream[3] == 0x00)
+ && (varBind[1].value.asnValue.address.stream[4] == 0x00)
+ && (varBind[1].value.asnValue.address.stream[5] == 0x00) )
+ {
+ // Ignore NULL addresses returned by other network
+ // interfaces
+ std::cerr << "Interface #" << j << " is a NULL address\n";
+ continue;
+ }
+ memcpy( addr, varBind[1].value.asnValue.address.stream, 6);
}
- }
- }
-
- close(s);
- if (ok) {
- bcopy( ifr.ifr_hwaddr.sa_data, addr, 6);
- }
- else {
- return -1;
- }
- return 0;
-#endif
-
-/* implementation for HP-UX */
-#ifdef __HP_aCC
-
-#define LAN_DEV0 "/dev/lan0"
-
- int fd;
- struct fis iocnt_block;
- int i;
- char net_buf[sizeof(LAN_DEV0)+1];
- char *p;
-
- (void)sprintf(net_buf, "%s", LAN_DEV0);
- p = net_buf + strlen(net_buf) - 1;
-
- /*
- * Get 802.3 address from card by opening the driver and interrogating it.
- */
- for (i = 0; i < 10; i++, (*p)++) {
- if ((fd = open (net_buf, O_RDONLY)) != -1) {
- iocnt_block.reqtype = LOCAL_ADDRESS;
- ioctl (fd, NETSTAT, &iocnt_block);
- close (fd);
-
- if (iocnt_block.vtype == 6)
- break;
- }
- }
+ }
+ }
+ } while (!ret);
- if (fd == -1 || iocnt_block.vtype != 6) {
- return -1;
- }
+ // Free the bindings
+ SNMP_FreeVarBind(&varBind[0]);
+ SNMP_FreeVarBind(&varBind[1]);
+ return 0;
+#endif //Win32 version
+
+
+// implementation for POSIX system
+#ifdef __sun
+ //The POSIX version is broken anyway on Solaris, plus would require full
+ //root power
+ int i;
+ struct arpreq parpreq;
+ struct sockaddr_in sa, *psa;
+ struct in_addr inaddr;
+ struct hostent *phost;
+ char hostname[MAXHOSTNAMELEN];
+ unsigned char *ptr;
+ char **paddrs;
+ int sock, status=0;
+
+ if(gethostname(hostname, MAXHOSTNAMELEN) != 0)
+ {
+ perror("gethostname");
+ return -1;
+ }
+ phost = gethostbyname(hostname);
+ paddrs = phost->h_addr_list;
- bcopy( &iocnt_block.value.s[0], addr, 6);
- return 0;
+ sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+ if(sock == -1)
+ {
+ perror("sock");
+ return -1;
+ }
+ memset(&parpreq, 0, sizeof(struct arpreq));
+ psa = (struct sockaddr_in *) &parpreq.arp_pa;
-#endif /* HPUX */
+ memset(psa, 0, sizeof(struct sockaddr_in));
+ psa->sin_family = AF_INET;
+ memcpy(&psa->sin_addr, *paddrs, sizeof(struct in_addr));
-/* implementation for AIX */
-#ifdef _AIX
+ status = ioctl(sock, SIOCGARP, &parpreq);
+ if(status == -1)
+ {
+ perror("SIOCGARP");
+ return -1;
+ }
+ memcpy(addr, parpreq.arp_ha.sa_data, 6);
- int size;
- struct kinfo_ndd *nddp;
+ return 0;
+#else
+#ifdef CMAKE_HAVE_NET_IF_H
+ int sd;
+ struct ifreq ifr, *ifrp;
+ struct ifconf ifc;
+ char buf[1024];
+ int n, i;
+ unsigned char *a;
+#ifdef AF_LINK
+ struct sockaddr_dl *sdlp;
+#endif
- size = getkerninfo(KINFO_NDD, 0, 0, 0);
- if (size <= 0) {
- return -1;
- }
- nddp = (struct kinfo_ndd *)malloc(size);
-
- if (!nddp) {
- return -1;
- }
- if (getkerninfo(KINFO_NDD, nddp, &size, 0) < 0) {
- free(nddp);
- return -1;
- }
- bcopy(nddp->ndd_addr, addr, 6);
- free(nddp);
- return 0;
-#endif //_AIX
+//
+// BSD 4.4 defines the size of an ifreq to be
+// max(sizeof(ifreq), sizeof(ifreq.ifr_name)+ifreq.ifr_addr.sa_len
+// However, under earlier systems, sa_len isn't present, so the size is
+// just sizeof(struct ifreq)
+// We should investiage the use of SIZEOF_ADDR_IFREQ
+//
+#ifdef HAVE_SA_LEN
+#ifndef max
+#define max(a,b) ((a) > (b) ? (a) : (b))
+#endif
+#define ifreq_size(i) max(sizeof(struct ifreq),\
+ sizeof((i).ifr_name)+(i).ifr_addr.sa_len)
+#else
+#define ifreq_size(i) sizeof(struct ifreq)
+#endif // HAVE_SA_LEN
-/* Not implemented platforms */
- return -1;
+ if( (sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0 )
+ {
+ return -1;
+ }
+ memset(buf, 0, sizeof(buf));
+ ifc.ifc_len = sizeof(buf);
+ ifc.ifc_buf = buf;
+ if (ioctl (sd, SIOCGIFCONF, (char *)&ifc) < 0)
+ {
+ close(sd);
+ return -1;
+ }
+ n = ifc.ifc_len;
+ for (i = 0; i < n; i+= ifreq_size(*ifrp) )
+ {
+ ifrp = (struct ifreq *)((char *) ifc.ifc_buf+i);
+ strncpy(ifr.ifr_name, ifrp->ifr_name, IFNAMSIZ);
+#ifdef SIOCGIFHWADDR
+ if (ioctl(sd, SIOCGIFHWADDR, &ifr) < 0)
+ continue;
+ a = (unsigned char *) &ifr.ifr_hwaddr.sa_data;
+#else
+#ifdef SIOCGENADDR
+ // In theory this call should also work on Sun Solaris, but apparently
+ // SIOCGENADDR is not implemented properly thus the call
+ // ioctl(sd, SIOCGENADDR, &ifr) always returns errno=2
+ // (No such file or directory)
+ // Furthermore the DLAPI seems to require full root access
+ if (ioctl(sd, SIOCGENADDR, &ifr) < 0)
+ continue;
+ a = (unsigned char *) ifr.ifr_enaddr;
+#else
+#ifdef AF_LINK
+ sdlp = (struct sockaddr_dl *) &ifrp->ifr_addr;
+ if ((sdlp->sdl_family != AF_LINK) || (sdlp->sdl_alen != 6))
+ continue;
+ a = (unsigned char *) &sdlp->sdl_data[sdlp->sdl_nlen];
+#else
+ perror("No way to access hardware");
+ close(sd);
+ return -1;
+#endif // AF_LINK
+#endif // SIOCGENADDR
+#endif // SIOCGIFHWADDR
+ if (!a[0] && !a[1] && !a[2] && !a[3] && !a[4] && !a[5]) continue;
+
+ if (addr)
+ {
+ memcpy(addr, a, 6);
+ close(sd);
+ return 0;
+ }
+ }
+ close(sd);
+#endif
+ /* Not implemented platforms */
+ perror("There was a configuration problem on your plateform");
+ memset(addr,0,6);
+ return -1;
+#endif //__sun
}
std::string Util::GetMACAddress()
{
- // This is a rip from: http://cplus.kompf.de/macaddr.html for Linux, HPUX and AIX
- // and http://tangentsoft.net/wskfaq/examples/src/snmpmac.cpp for windows version
- long stat;
- u_char addr[6];
+ // This code is the result of a long internet search to find something
+ // as compact as possible (not OS independant). We only have to separate
+ // 3 OS: Win32, SunOS and 'real' POSIX
+ // http://groups-beta.google.com/group/comp.unix.solaris/msg/ad36929d783d63be
+ // http://bdn.borland.com/article/0,1410,26040,00.html
+ unsigned char addr[6];
std::string macaddr;
- stat = GetMacAddrSys( addr);
+ int stat = GetMacAddrSys(addr);
if (0 == stat)
{
- //printf( "MAC address = ");
- for (int i=0; i<6; ++i)
- {
- //printf("%2.2x", addr[i]);
- macaddr += Format("%2.2x", addr[i]);
- }
- // printf( "\n");
+ for (int i=0; i<6; ++i)
+ {
+ macaddr += Format("%2.2x", addr[i]);
+ //if(i) macaddr += ".";
+ //macaddr += Format("%i", (int)addr[i]);
+ }
return macaddr;
}
else
{
- //printf( "No MAC address !\n" );
+ gdcmVerboseMacro("Problem in finding the MAC Address");
return "";
}
}
*/
std::string Util::GetIPAddress()
{
- // This is a rip from http://www.codeguru.com/Cpp/I-N/internet/network/article.php/c3445/
+ // 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'.
+ // 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...
+ // 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. */
+ // 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++ )
+ 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++ )
{
- 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
-
+ 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__)
- WSACleanup();
+ WSACleanup();
#endif
-
- }
- }
- // If an error occur r == -1
- // Most of the time it will return 127.0.0.1...
- return str;
+
+ }
+ }
+ // If an error occur r == -1
+ // Most of the time it will return 127.0.0.1...
+ return str;
}
/**
*/
std::string Util::CreateUniqueUID(const std::string &root)
{
- // The code works as follow:
- // echo "gdcm" | od -b
- // 0000000 147 144 143 155 012
- // Therefore we return
- // radical + 147.144.143.155 + IP + time()
- std::string radical = root;
- if( !root.size() ) //anything better ?
- {
- radical = "0.0."; // Is this really usefull ?
- }
- // else
- // A root was specified use it to forge our new UID:
- radical += "147.144.143.155"; // gdcm
- radical += ".";
- radical += Util::GetIPAddress();
- radical += ".";
- radical += Util::GetCurrentDate();
- radical += ".";
- radical += Util::GetCurrentTime();
-
- return radical;
+ std::string 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;
}
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);
}
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 ) & 0x0ff00 ) | (( val >> 8 ) & 0x00ff ) );
+ return os.write(reinterpret_cast<const char*>(&swap), 2);
#else
- return os.write(reinterpret_cast<const char*>(&val), 2);
+ return os.write(reinterpret_cast<const char*>(&val), 2);
#endif //GDCM_WORDS_BIGENDIAN
}
std::ostream &binary_write(std::ostream &os, const uint32_t &val)
{
#ifdef GDCM_WORDS_BIGENDIAN
- uint32_t swap;
- swap = ( ((val<<24) & 0xff000000) | ((val<<8) & 0x00ff0000) |
- ((val>>8) & 0x0000ff00) | ((val>>24) & 0x000000ff) );
- return os.write(reinterpret_cast<const char*>(&swap), 4);
+ uint32_t swap;
+ swap = ( ((val<<24) & 0xff000000) | ((val<<8) & 0x00ff0000) |
+ ((val>>8) & 0x0000ff00) | ((val>>24) & 0x000000ff) );
+ return os.write(reinterpret_cast<const char*>(&swap), 4);
#else
- return os.write(reinterpret_cast<const char*>(&val), 4);
+ return os.write(reinterpret_cast<const char*>(&val), 4);
#endif //GDCM_WORDS_BIGENDIAN
}
std::ostream &binary_write(std::ostream &os, const char *val)
{
- return os.write(val, strlen(val));
+ return os.write(val, strlen(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());
}
} // end namespace gdcm