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Diff for /OpenXM_contrib2/asir2000/builtin/ctrl.c between version 1.28 and 1.60

version 1.28, 2004/01/07 06:25:42 version 1.60, 2018/09/13 19:20:47
Line 45 
Line 45 
  * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,   * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
  * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.   * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
  *   *
  * $OpenXM: OpenXM_contrib2/asir2000/builtin/ctrl.c,v 1.27 2003/12/02 06:56:47 noro Exp $   * $OpenXM: OpenXM_contrib2/asir2000/builtin/ctrl.c,v 1.59 2018/03/29 01:32:50 noro Exp $
 */  */
 #include "ca.h"  #include "ca.h"
 #include "parse.h"  #include "parse.h"
   #include <string.h>
   #if defined(VISUAL) || defined(__MINGW32__)
   #include <windows.h>
   #include <winnls.h>
   #else
   #include <locale.h>
   #include <unistd.h>
   #include <sys/types.h>
   #include <sys/socket.h>
   #include <sys/wait.h>
   #include <sys/utsname.h>
   #endif
   
   static struct {
     char *type;
     char *kernel;
     char *name;
     char *arch;
     char *release;
     char *full;
     char *lang;
   #if defined(VISUAL)
     int ver_major;
     int ver_minor;
     int ver_build;
   #endif
   } sysinfo;
   
 void Pctrl();  void Pctrl();
   void Psysinfo(LIST *rp);
   static void get_sysinfo();
   
 struct ftab ctrl_tab[] = {  struct ftab ctrl_tab[] = {
         {"ctrl",Pctrl,-2},    {"ctrl",Pctrl,-2},
         {0,0,0},    {"asir_env",Pctrl,-2},
     {"sysinfo", Psysinfo, 0},
     {0,0,0},
 };  };
   
 extern int prtime,nez,echoback,bigfloat;  extern int error_in_timer;
 extern int GC_free_space_numerator,GC_free_space_divisor,debug_up;  extern int prtime,nez,echoback,bigfloat,evalef;
   extern int debug_up;
 extern int GC_max_heap_size,Verbose,hideargs,hex_output,do_server_in_X11;  extern int GC_max_heap_size,Verbose,hideargs,hex_output,do_server_in_X11;
 extern int do_message;  extern int do_message,do_terse;
 extern int ox_batch,ox_check,ox_exchange_mathcap;  extern int ox_batch,ox_check,ox_exchange_mathcap;
 extern int f4_nocheck;  extern int f4_nocheck;
 extern int StrassenSize;  extern int StrassenSize;
Line 68  extern int outputstyle;
Line 100  extern int outputstyle;
 extern int fortran_output;  extern int fortran_output;
 extern int real_digit;  extern int real_digit;
 extern int real_binary;  extern int real_binary;
   extern int allow_laurent;
 #if defined(INTERVAL)  #if defined(INTERVAL)
 extern int zerorewrite;  extern int zerorewrite;
   extern int Itvplot;
 #endif  #endif
 extern int double_output;  extern int double_output;
 extern int use_new_hensel;  extern int use_new_hensel;
Line 77  extern int print_quote;
Line 111  extern int print_quote;
 extern int show_crossref;  extern int show_crossref;
 extern Obj user_defined_prompt;  extern Obj user_defined_prompt;
 extern int asir_setenv;  extern int asir_setenv;
   extern int show_orderspec;
   extern int no_debug_on_error;
   extern int diag_period;
   extern int weight_check;
   extern char **ASIRLOADPATH;
   extern int ASIRLOADPATH_LEN;
   extern int No_ox_reset;
   extern int plot_by_bigfloat;
   extern int debug_plot;
   
 static struct {  static struct keyval {
         char *key;    char *key;
         int *val;    int *val;
     char *desc;
 } ctrls[] = {  } ctrls[] = {
         {"cputime",&prtime},    {"StrassenSize",&StrassenSize,"Determines the parameter in Strassen-Winograd matrix multiplication algorithm."},
         {"nez",&nez},    {"allow_laurent",&allow_laurent,"If set to 1, negative exponents are allowed in monomials."},
         {"echo",&echoback},    {"asir_setenv",&asir_setenv,"Not used."},
     {"bigfloat",&bigfloat,"If set to 1, MPFR bigfloat functions are used for floating point evaluation." },
     {"cputime",&prtime,"If set to 1, the CPU time at the toplevel is shown." },
     {"debug_up",&debug_up,"If set to 1, some debug messages are printed in special functions for univariate polynomials."},
     {"debug_window",&do_server_in_X11,"If set to 1, an input window for debugging remote server are shown."},
     {"diag_period",&diag_period,"Determines the frequency of the intermediate inter-reduction in nd_gr()."},
     {"double_output",&double_output,"If set to 1, floating point numbers are printed in the style ddd.ddd."},
     {"echo",&echoback,"If set to 1, characters read by the input function are printed."  },
     {"error_in_timer",&error_in_timer,"If set to 1, the usual error handler is executed when the timer is expired."},
     {"evalef",&evalef,"If set to 1, elementary functions are evaluated immediately."},
     {"f4_nocheck",&f4_nocheck,"If set to 1, correctness check of the result of modular computation are omitted in nd_f4()."},
     {"fake_ox_reset",&No_ox_reset,"Determines the treatment of OX reset request for a server which does not implement the reset protocol."},
     {"fortran_output",&fortran_output,"If set to 1, ** is used instead of ^ for representing the power."},
     {"hex",&hex_output,"If set to 1, integers are printed by the hexadecimal notation."},
     {"hideargs",&hideargs,"If set to 1, the arguments of a function call are not printed."},
     {"message",&do_message,"If set to 1, an opening message is printed in ox_asir and ox_plot."},
     {"new_hensel",&use_new_hensel,"If set to 1, a function hensel2() is used in the univariate factorizer over Q."},
     {"nez",&nez,"If set to 1, a new version of EZGCD implementation is used."  },
     {"no_debug_on_error",&no_debug_on_error,"If set to 1, the debug mode is not used."},
     {"no_ox_reset",&No_ox_reset,"Determines the treatment of OX reset request for a server which does not implement the reset protocol."},
     {"no_prompt",&do_quiet,"If set to 1, prompts are not shown."},
     {"outputstyle",&outputstyle,"If set to 1, structured data such as matrices and vectors are printed in the style mat(...), vect(...)."},
     {"ox_batch",&ox_batch,"If set to 1, the OX stream are not flushed at each sending of an OX data."},
     {"ox_check",&ox_check,"If set to 1, mathcap check is done for OpenXM date communication."},
     {"ox_exchange_mathcap",&ox_exchange_mathcap,"If set to 1, mathcaps are exchanged."},
     {"print_quote",&print_quote,"Determines the behavior of the printed form of a quote."},
     {"quiet_mode",&do_quiet,"If set to 1, the copyright notices are not printed at the beginning of the session."},
     {"real_binary",&real_binary,"If set to 1, a floating point number is printed by the binary notation."},
     {"real_digit",&real_digit,"Determines the number of digits to appear after the decimal point."},
     {"show_crossref",&show_crossref,"If set to 1, cross-references are shown when a program file is loaded."},
     {"show_orderspec",&show_orderspec,"If set to 1, the specification of a composite term order is printed upon its creation."},
     {"terse",&do_terse,"If set to 1, messages are not printed when user-defined callbacks are executed."},
     {"verbose",&Verbose,"If set to 1, a warning is printed if a function is redefined."},
     {"weight_check",&weight_check,"If set to 1, an overflow check for the given weight vector is done before starting the Groebner basis computation."},
 #if defined(DO_PLOT)  #if defined(DO_PLOT)
         {"bigfloat",&bigfloat},    {"plot_by_bigfloat",&plot_by_bigfloat,"If set to 1, computation is done by using MPFR bigfloat functions in ox_plot."},
     {"debug_plot",&debug_plot,"If set to 1, ox_plot is executed with the message window."},
 #endif  #endif
         {"verbose",&Verbose},  
         {"quiet_mode",&do_quiet},  
         {"hideargs",&hideargs},  
         {"hex",&hex_output},  
         {"debug_window",&do_server_in_X11},  
         {"message",&do_message},  
         {"debug_up",&debug_up},  
         {"no_prompt",&do_quiet},  
         {"asir_setenv",&asir_setenv},  
         {"ox_batch",&ox_batch},  
         {"ox_check",&ox_check},  
         {"ox_exchange_mathcap",&ox_exchange_mathcap},  
         {"f4_nocheck",&f4_nocheck},  
         {"StrassenSize",&StrassenSize},  
         {"outputstyle",&outputstyle},  
         {"double_output",&double_output},  
         {"real_digit",&real_digit},  
         {"real_binary",&real_binary},  
         {"fortran_output",&fortran_output},  
         {"new_hensel",&use_new_hensel},  
         {"print_quote",&print_quote},  
         {"show_crossref",&show_crossref},  
 #if defined(INTERVAL)  #if defined(INTERVAL)
         {"zerorewrite",&zerorewrite},    {"zerorewrite",&zerorewrite,""},
     {"itvplotsize",&Itvplot,""},
 #endif  #endif
         {0,0},    {0,0},
 };  };
   
 void Pctrl(arg,rp)  LIST create_control_value(char *keystr,Obj value,char *descstr,int withdesc)
 NODE arg;  
 Q *rp;  
 {  {
         int t,i,n;    STRING key,desc;
         N num,den;    NODE nd;
         Q c;    LIST list;
         char *key;  
         char buf[BUFSIZ];  
         char *str;  
   
         if ( !arg ) {    MKSTR(key,keystr);
                 *rp = 0;    if ( withdesc ) {
                 return;      MKSTR(desc,descstr);
         }      nd = mknode(3,key,value,desc);
         key = BDY((STRING)ARG0(arg));    } else nd = mknode(2,key,value);
         if ( !strcmp(key,"adj") ) {    MKLIST(list,nd);
                 /* special treatment is necessary for "adj" */    return list;
                 if ( argc(arg) == 1 ) {  }
                         UTON(GC_free_space_divisor,num);  
                         UTON(GC_free_space_numerator,den);  extern Q ox_pari_stream;
                 } else {  extern int ox_pari_stream_initialized;
                         c = (Q)ARG1(arg);  extern P ox_pari_starting_function;
                         if ( !c )  
                                 error("ctrl : adj : invalid argument");  LIST create_control_values(int withdesc)
                         num = NM(c);  {
                         den = !DN(c)?ONEN:DN(c);    int n,i;
                         GC_free_space_divisor = BD(num)[0];    NODE top,top1,nd,node,p;
                         GC_free_space_numerator = BD(den)[0];    LIST list,l;
                 }    STRING s;
                 NDTOQ(num,den,1,*rp);    char *descstr;
                 return;    Q val,adj;
         } else if ( !strcmp(key,"prompt") ) {    int nm,dv;
                 /* special treatment is necessary for "prompt" */    N num,den;
                 if ( argc(arg) == 1 ) {  
                   if ((!do_quiet) && (user_defined_prompt == (Obj)0)) *rp=ONE;    n = sizeof(ctrls)/sizeof(struct keyval)-1;
     top = 0;
     for ( i = n-1; i >= 0; i-- ) {
       STOQ(*(ctrls[i].val),val);
       list = create_control_value(ctrls[i].key,val,ctrls[i].desc,withdesc);
       MKNODE(top1,list,top); top = top1;
     }
   /* adj */
     Risa_GC_get_adj(&nm,&dv); UTON(nm,num); UTON(dv,den); NDTOQ(num,den,1,adj);
     descstr = "Determines the parameter for Boehm's GC.";
     list = create_control_value("adj",adj,descstr,withdesc);
     MKNODE(top1,list,top); top = top1;
   
   /* prompt */
     descstr = "Determines the user-defined prompt.";
     list = create_control_value("prompt",user_defined_prompt,descstr,withdesc);
     MKNODE(top1,list,top); top = top1;
   
   /* loadpath */
     node = 0;
     if( ASIRLOADPATH[0] ) {
       for(i=0; ASIRLOADPATH[i]; i++);
       for(i--,p=NULL; i>=0; i--,p=node) {
         MKSTR(s,ASIRLOADPATH[i]);
         MKNODE(node,s,p);
       }
     }
     MKLIST(l,node);
     descstr = "List of paths in ASIRLOADPATHt.";
     list = create_control_value("loadpath",l,descstr,withdesc);
     MKNODE(top1,list,top); top = top1;
   
   /* oxpari_id */
     if(!ox_pari_stream_initialized) {
       STOQ(-1,val);
     } else val = ox_pari_stream;
     descstr = "Id of ox_pari.";
     list = create_control_value("oxpari_id",val,descstr,withdesc);
     MKNODE(top1,list,top); top = top1;
   
   /* oxpari_start */
     val = (Q)ox_pari_starting_function;
     descstr = "oxpari starting function.";
     list = create_control_value("oxpari_start",val,descstr,withdesc);
     MKNODE(top1,list,top); top = top1;
   
     MKLIST(list,top);
     return list;
   }
   
   void Pctrl(NODE arg,Q *rp)
   {
     int t,i,n,desc=0;
     int nm,dv;
     N num,den;
     Q c;
     char *key;
     char buf[BUFSIZ];
     char *str;
     STRING s;
     NODE node,p,opt;
     LIST list;
     P f;
     Obj value;
   
     if ( !arg ) {
       if ( current_option ) {
         for ( opt = current_option; opt; opt = NEXT(opt) ) {
           p = BDY((LIST)BDY(opt));
           key = BDY((STRING)BDY(p));
           value = (Obj)BDY(NEXT(p));
           if ( !strcmp(key,"desc") && value ) {
             desc = value ? 1 : 0;
             break;
           }
         }
       }
       *rp = create_control_values(desc);
       return;
     }
     key = BDY((STRING)ARG0(arg));
     if ( !strcmp(key,"adj") ) {
       /* special treatment is necessary for "adj" */
       if ( argc(arg) == 1 ) {
         Risa_GC_get_adj(&nm,&dv);
         UTON(dv,num);
         UTON(nm,den);
       } else {
         c = (Q)ARG1(arg);
         if ( !c )
           error("ctrl : adj : invalid argument");
         num = NM(c);
         den = !DN(c)?ONEN:DN(c);
         dv = BD(num)[0];
         nm = BD(den)[0];
         Risa_GC_set_adj(nm,dv);
       }
       NDTOQ(num,den,1,*rp);
       return;
     } else if ( !strcmp(key,"prompt") ) {
       /* special treatment is necessary for "prompt" */
       if ( argc(arg) == 1 ) {
         if ((!do_quiet) && (user_defined_prompt == (Obj)0)) *rp=ONE;
           else *rp = (Q)user_defined_prompt;            else *rp = (Q)user_defined_prompt;
                 } else {      } else {
                         c = (Q)ARG1(arg);        c = (Q)ARG1(arg);
                         if ( !c ) {        if ( !c ) {
                                 do_quiet = 1;          do_quiet = 1;
                                 user_defined_prompt = 0;          user_defined_prompt = 0;
                                 *rp = 0;          *rp = 0;
                         } else if ( OID(c) == O_STR ) {        } else if ( OID(c) == O_STR ) {
                                 str = BDY((STRING)c);          str = BDY((STRING)c);
                                 for ( i = 0, n = 0; str[i]; i++ )           for ( i = 0, n = 0; str[i]; i++ )
                                         if ( str[i] == '%' )            if ( str[i] == '%' )
                                                 n++;              n++;
                                 if ( n >= 2 )          if ( n >= 2 )
                                         error("ctrl : prompt : invalid prompt specification");            error("ctrl : prompt : invalid prompt specification");
                                 do_quiet = 1;          do_quiet = 1;
                                 user_defined_prompt = (Obj)c;          user_defined_prompt = (Obj)c;
                                 *rp = c;          *rp = c;
                         } else if ( NUM(c) && RATN(c) && UNIQ(c) ) {        } else if ( NUM(c) && RATN(c) && UNIQ(c) ) {
                                 user_defined_prompt = 0;          user_defined_prompt = 0;
                                 do_quiet = 0;          do_quiet = 0;
                         } else {        } else {
                                 error("ctrl : prompt : invalid argument");          error("ctrl : prompt : invalid argument");
                         }        }
                 }      }
                 return;      return;
         }    } else if ( !strcmp(key,"loadpath") ) {
         for ( i = 0; ctrls[i].key; i++ )      *rp = 0;
                 if ( !strcmp(key,ctrls[i].key) )      if ( argc(arg) == 1 ) {
                         break;        if( ASIRLOADPATH[0] ) {
         if ( ctrls[i].key ) {          for(i=0; ASIRLOADPATH[i]; i++) {
                 if ( argc(arg) == 1 )          }
                         t = *ctrls[i].val;          for(i--,p=NULL; i>=0; i--,p=node) {
                 else            MKSTR(s,ASIRLOADPATH[i]);
                         *ctrls[i].val = t = QTOS((Q)ARG1(arg));            MKNODE(node,s,p);
                 STOQ(t,*rp);          }
         } else {          MKLIST(list,node);
                 sprintf(buf,"ctrl : %s : no such key",key);          *rp = (Q)list;
                 error(buf);        }
         }      } else {
         list = (LIST)ARG1(arg);
         if ( OID(list) == O_LIST ) {
           for(i=0,p=BDY(list); p; i++,p=NEXT(p)) {
             s=(STRING)BDY(p);
             if(!s || OID(s)!=O_STR) {
               error("ctrl : loadpath : invalid argument");
             }
           }
           if(i >= ASIRLOADPATH_LEN) {
             ASIRLOADPATH_LEN = i+1;
             ASIRLOADPATH = (char **)MALLOC(sizeof(char *)*ASIRLOADPATH_LEN);
           }
           for(i=0,p=BDY(list); p; i++,p=NEXT(p)) {
             ASIRLOADPATH[i] = (char *)BDY((STRING)BDY(p));
           }
           ASIRLOADPATH[i] = NULL;
         }else {
           error("ctrl : loadpath : invalid argument");
         }
       }
       return;
     } else if ( !strcmp(key,"oxpari_id") ) {
           if ( argc(arg) == 1 ) {
               if(!ox_pari_stream_initialized) {
                   t=-1;
                   STOQ(t,*rp);
               }else {
                   *rp = ox_pari_stream;
               }
           }else {
         c = (Q)ARG1(arg);
         if ( !c || ( NUM(c) && INT(c) && SGN(c)>0 ) ) {
           ox_pari_stream_initialized = 1;
           ox_pari_stream = c;
           *rp = c;
         }else {
                   t=-1;
                   STOQ(t,*rp);
         }
       }
       return;
     } else if ( !strcmp(key,"oxpari_start") ) {
           if ( argc(arg) == 1 ) {
         *rp = (Q)ox_pari_starting_function;
       } else {
         f = (P)ARG1(arg);
         if ( !f || OID(f) == O_P) {
           ox_pari_starting_function = f;
           *rp = (Q)f;
         }else {
           *rp = 0;
         }
       }
       return;
     }
     for ( i = 0; ctrls[i].key; i++ )
       if ( !strcmp(key,ctrls[i].key) )
         break;
     if ( ctrls[i].key ) {
       if ( argc(arg) == 1 )
         t = *ctrls[i].val;
       else
         *ctrls[i].val = t = QTOS((Q)ARG1(arg));
       STOQ(t,*rp);
     } else {
       sprintf(buf,"ctrl : %s : no such key",key);
       error(buf);
     }
 }  }
   
   void Psysinfo(LIST *rp)
   {
       int i;
       NODE n,p;
       STRING s[7];
   
       get_sysinfo();
       MKSTR(s[0],sysinfo.type);  MKSTR(s[1],sysinfo.kernel);   MKSTR(s[2],sysinfo.name);
       MKSTR(s[3],sysinfo.arch);  MKSTR(s[4],sysinfo.release);  MKSTR(s[5],sysinfo.full);
       MKSTR(s[6],sysinfo.lang);
       for(i=6,p=NULL; i>=0; i--,p=n) {
           MKNODE(n,s[i],p);
       }
       MKLIST(*rp,n);
   }
   
   #if !defined(VISUAL) && !defined(__MINGW32__)
   
   static char *get_lang()
   {
       char *c, *p, *q;
       c = setlocale(LC_ALL, NULL); /* saving current locale */
       p = setlocale(LC_ALL, "");
       q = (char *)MALLOC(strlen(p)+1);
       strcpy(q,p);
       setlocale(LC_ALL, c);        /* restoring current locale */
       return q;
   }
   
   static char *myuname(char *option)
   {
       char buf[BUFSIZ];
       char *s;
       int fd[2], status, pid;
       *buf = 0;
       if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0) {
           *buf = 0; return NULL;
       }
       pid = fork();
       if (pid < 0) {
           return NULL;
       }else if (pid == 0) {
           dup2(fd[1], 1);
           close(2);
           execlp("uname", "uname", option, NULL);
       }
       waitpid(pid, &status, 0);
       if (status) { /* error */
           return NULL;
       }
       s = buf;
       if( !read(fd[0], s, BUFSIZ-1) || (s = strchr(s, '\n')) ) {
           *s = 0;
       }
       close(fd[0]);
       close(fd[1]);
       s = (char *)MALLOC(strlen(buf)+1);
       strcpy(s, buf);
       return s;
   }
   
   static void get_sysinfo()
   {
       static struct utsname u;
       static int initialized = 0;
       if (initialized) {
           return;
       }
       initialized = 1;
       uname(&u);
       sysinfo.kernel = u.sysname;
   #if defined(__DARWIN__)
       sysinfo.type   = "macosx";
       sysinfo.name   = sysinfo.kernel;
   #else
       sysinfo.type   = "unix";
       sysinfo.name   = myuname("-o"); // not work on Darwin
       if (!sysinfo.name) {
           sysinfo.name = sysinfo.kernel;
       }
   #endif
       sysinfo.arch   = u.machine;
       sysinfo.release= u.release;
       sysinfo.full   = myuname("-a");
       sysinfo.lang   = get_lang();
   }
   
   #else
   
   /* http://msdn.microsoft.com/ja-jp/library/windows/desktop/ms724834%28v=vs.85%29.aspx */
   static char *osnameNT(int major, int minor)
   {
       if ((major == 3 && minor == 51) || (major == 4 && minor == 0)) {
           return "WindowsNT";
       }else if (major == 5 && minor == 0) {
           return "Windows2000";
       }else if (major == 5 && minor == 1) {
           return "WindowsXP";
       }else if (major == 5 && minor == 2) {
           return "Windows2003 Server";
       }else if (major == 6 && minor == 0) {
           return "WindowsVista";
       }else if (major == 6 && minor == 1) {
           return "Windows7";
       }else if (major == 6 && minor == 2) {
           return "Windows8";
       }else if (major == 6 && minor == 3) {
           return "Windows8.1";
       }else if (major == 10 && minor == 0) {
           return "Windows10";
       }
       return "unknown";
   }
   
   static char *osname95(int major, int minor)
   {
       if (major == 4 && minor == 0) {
           return "Windows95";
       }else if (major == 4 && minor == 10) {
           return "Windows98";
       }else if (major == 4 && minor == 90) {
           return "WindowsMe";
       }
       return "unknown";
   }
   
   static char *get_lang()
   {
       char lang[BUFSIZ];
       char *s;
       if(GetLocaleInfo(GetUserDefaultLCID(), LOCALE_SISO639LANGNAME, lang, BUFSIZ)) {
           s = (char *)MALLOC(strlen(lang)+1);
           strcpy(s,lang);
           return s;
       }
       return "en"; // English
   }
   
   void get_version_win8(int *major,int *minor,int *build)
   {
       char *res;
       char fname[4096]; /* fullpath of kernel32.dll (_MAX_PATH==260)*/
       char cmd[4096];
       int size;
       char *version_string;
       struct LANGANDCODEPAGE {
           WORD language;
           WORD codepage;
       }* lang;
       sprintf(fname,"%s\\system32\\kernel32.dll", getenv("SYSTEMROOT"));
       size=GetFileVersionInfoSize(fname,0);
       res = (char *)MALLOC(size+1);
       if(GetFileVersionInfo(fname,0,size+1,res)) {
           VerQueryValue(res,"\\VarFileInfo\\Translation",&lang,&size);
           sprintf(cmd,"\\StringFileInfo\\%04x%04x\\ProductVersion",lang->language,lang->codepage);
           VerQueryValue(res,cmd,&version_string,&size);
           sscanf(version_string,"%d.%d.%d.",major,minor,build);
       }
   }
   
   static void get_sysinfo()
   {
       int arch64 = 0;
       char buf[BUFSIZ];
       OSVERSIONINFO v;
       char *s;
       static int initialized = 0;
   
       if (initialized) {
           return;
       }
       initialized = 1;
   
       v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
       GetVersionEx(&v);
       /* Windows8 == version 6.2 */
       if (v.dwPlatformId == VER_PLATFORM_WIN32_NT
           && v.dwMajorVersion == 6 && v.dwMinorVersion >= 2) {
           get_version_win8(&v.dwMajorVersion, &v.dwMinorVersion, &v.dwBuildNumber);
       }
       sysinfo.ver_major=v.dwMajorVersion;
       sysinfo.ver_minor=v.dwMinorVersion;
       sysinfo.ver_build=v.dwBuildNumber;
   
       sysinfo.type = "windows";
       sysinfo.arch = "x86";
       sprintf(buf, "%d.%d.%d", v.dwMajorVersion, v.dwMinorVersion, v.dwBuildNumber);
       s = (char *)MALLOC(strlen(buf)+1);
       strcpy(s, buf);
       sysinfo.release = s;
   
       if (v.dwPlatformId == VER_PLATFORM_WIN32_NT) {
           sysinfo.kernel = "WindowsNT";
           sysinfo.name = osnameNT(v.dwMajorVersion, v.dwMinorVersion);
   
   #if defined(_WIN64)
           sysinfo.arch = "x86_64";
   #else
           // IsWow64Process exists on WindowsXP SP2 or later
           if(GetProcAddress(GetModuleHandle("kernel32.dll"), "IsWow64Process")) {
               IsWow64Process(GetCurrentProcess(),&arch64);
               if(arch64) {
                   sysinfo.arch = "x86_64";
               }
           }
   #endif
       }else { /* v.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS */
           sysinfo.kernel = "Windows95";
           sysinfo.name = osname95(v.dwMajorVersion, v.dwMinorVersion);
       }
       sprintf(buf, "%s %s %s %s %s", sysinfo.kernel, sysinfo.release, sysinfo.name, v.szCSDVersion, sysinfo.arch);
       s = (char *)MALLOC(strlen(buf)+1);
       strcpy(s, buf);
       sysinfo.full = s;
       sysinfo.lang = get_lang();
   }
   
   #endif
Legend:
Removed from v.1.28  
changed lines
  Added in v.1.60
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