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Diff for /OpenXM/src/kan96xx/Kan/ext.c between version 1.1 and 1.9

version 1.1, 1999/10/08 02:12:02 version 1.9, 2002/02/24 10:27:18
Line 1 
Line 1 
   /* $OpenXM: OpenXM/src/kan96xx/Kan/ext.c,v 1.8 2001/08/21 14:12:46 takayama Exp $ */
 #include <stdio.h>  #include <stdio.h>
 #include <sys/types.h>  #include <sys/types.h>
 #include <sys/stat.h>  #include <sys/stat.h>
Line 25  static void mywait() {
Line 26  static void mywait() {
   for (i=0; i<Mycp; i++) {    for (i=0; i<Mycp; i++) {
     if (Mychildren[i]  == pid) {      if (Mychildren[i]  == pid) {
       for (j=i; j<Mycp-1; j++) {        for (j=i; j<Mycp-1; j++) {
         Mychildren[j] = Mychildren[j+1];          Mychildren[j] = Mychildren[j+1];
       }        }
       if (Mycp > 0) Mycp--;        if (Mycp > 0) Mycp--;
     }      }
Line 34  static void mywait() {
Line 35  static void mywait() {
 }  }
   
 #define SIZE_OF_ENVSTACK 5  #define SIZE_OF_ENVSTACK 5
 static jmp_buf EnvStack[SIZE_OF_ENVSTACK];  #if defined(__CYGWIN__)
   #define JMP_BUF sigjmp_buf
   #else
   #define JMP_BUF jmp_buf
   #endif
   static JMP_BUF EnvStack[SIZE_OF_ENVSTACK];
 static int Envp = 0;  static int Envp = 0;
 static void pushEnv(jmp_buf jb) {  static void pushEnv(JMP_BUF jb) {
   if (Envp < SIZE_OF_ENVSTACK) {    if (Envp < SIZE_OF_ENVSTACK) {
     *(EnvStack[Envp]) = *jb;      *(EnvStack[Envp]) = *jb;
     Envp++;      Envp++;
Line 45  static void pushEnv(jmp_buf jb) {
Line 51  static void pushEnv(jmp_buf jb) {
     exit(2);      exit(2);
   }    }
 }  }
 static void popEnv(jmp_buf jbp) {  static void popEnv(JMP_BUF jbp) {
   if (Envp <= 0) {    if (Envp <= 0) {
     fprintf(stderr,"Underflow of EnvStack.\n");      fprintf(stderr,"Underflow of EnvStack.\n");
     exit(3);      exit(3);
Line 80  struct object Kextension(struct object obj)
Line 86  struct object Kextension(struct object obj)
   struct object keyo;    struct object keyo;
   struct object rob = NullObject;    struct object rob = NullObject;
   struct object obj1,obj2,obj3,obj4;    struct object obj1,obj2,obj3,obj4;
   int m,i;    int m,i,pid;
   int argListc, fdListc;    int argListc, fdListc;
   char *abc;    char *abc;
   char *abc2;    char *abc2;
   extern struct context *CurrentContextp;    extern struct context *CurrentContextp;
   #if (__CYGWIN__)
     extern sigjmp_buf EnvOfStackMachine;
   #else
   extern jmp_buf EnvOfStackMachine;    extern jmp_buf EnvOfStackMachine;
   #endif
   extern void ctrlC();    extern void ctrlC();
   extern int SigIgn;    extern int SigIgn;
   extern errno;    extern errno;
Line 94  struct object Kextension(struct object obj)
Line 104  struct object Kextension(struct object obj)
   struct stat buf;    struct stat buf;
   char **argv;    char **argv;
   FILE *fp;    FILE *fp;
   void (*oldsig)();    void (*oldsig)();
     extern SecureMode;
   
   if (obj.tag != Sarray) errorKan1("%s\n","Kextension(): The argument must be an array.");    if (obj.tag != Sarray) errorKan1("%s\n","Kextension(): The argument must be an array.");
   size = getoaSize(obj);    size = getoaSize(obj);
Line 131  struct object Kextension(struct object obj)
Line 142  struct object Kextension(struct object obj)
     if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT))      if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT))
       errorKan1("%s\n","The number must be 0, 1 or 2.");        errorKan1("%s\n","The number must be 0, 1 or 2.");
     putUserDictionary2((char *)NULL,0,0,m | SET_ATTR_FOR_ALL_WORDS,      putUserDictionary2((char *)NULL,0,0,m | SET_ATTR_FOR_ALL_WORDS,
                        CurrentContextp->userDictionary);                         CurrentContextp->userDictionary);
   }else if (strcmp(key,"keywords")==0) {    }else if (strcmp(key,"keywords")==0) {
     if (size != 1) errorKan1("%s\n","[(keywords)] extension.");      if (size != 1) errorKan1("%s\n","[(keywords)] extension.");
     rob = showSystemDictionary(1);      rob = showSystemDictionary(1);
     /*  }else if (strcmp(key,"fork0")==0) {      /*  }else if (strcmp(key,"fork0")==0) {
         if (size != 2) errorKan1("%s\n","[(fork0) sss] extension.");          if (size != 2) errorKan1("%s\n","[(fork0) sss] extension.");
         m = fork();          m = fork();
         if (m>0) { rob = KpoInteger(m); }          if (m>0) { rob = KpoInteger(m); }
         else {          else {
           system(KopString(getoa(obj,1))); exit(0);          system(KopString(getoa(obj,1))); exit(0);
         } */          } */
     }else if (strcmp(key,"defaultPolyRing")==0) {    }else if (strcmp(key,"defaultPolyRing")==0) {
       if (size != 2) errorKan1("%s\n","[(defaultPolyRing) n] extension.");      if (size != 2) errorKan1("%s\n","[(defaultPolyRing) n] extension.");
       rob = KdefaultPolyRing(getoa(obj,1));      rob = KdefaultPolyRing(getoa(obj,1));
     }else if (strcmp(key,"getenv")==0) {    }else if (strcmp(key,"getenv")==0) {
       if (size != 2) errorKan1("%s\n","[(getenv) envstr] extension.");      if (size != 2) errorKan1("%s\n","[(getenv) envstr] extension.");
       obj1 = getoa(obj,1);      obj1 = getoa(obj,1);
       if (obj1.tag != Sdollar) errorKan1("%s\n","[(getenv) envstr] extension");      if (obj1.tag != Sdollar) errorKan1("%s\n","[(getenv) envstr] extension");
       abc = getenv(KopString(obj1));      abc = getenv(KopString(obj1));
       if (abc == NULL) {      if (abc == NULL) {
         rob = NullObject;        rob = NullObject;
       }else{
         abc2 = (char *)sGC_malloc(sizeof(char)*(strlen(abc)+2));
         strcpy(abc2,abc);
         rob = KpoString(abc2);
       }
     }else if (strcmp(key,"stat")==0) {
       if (size != 2) errorKan1("%s\n","[(stat) fname] extension.");
       obj1 = getoa(obj,1);
       if (obj1.tag != Sdollar) errorKan1("%s\n","[(stat) fname] extension ; string fname.");
       m = stat(KopString(obj1),&buf);
       rob = newObjectArray(2);
       if (m == -1) {
         /* fail */
         obj2 = NullObject;
         putoa(rob,0,obj2);
         obj3 = newObjectArray(2);
         putoa(obj3,0,KpoString("error no"));
         putoa(obj3,1,KpoInteger(errno));
         putoa(rob,1,obj3);
       }else{
         /* success */
         putoa(rob,0,KpoInteger(0));
         obj3 = newObjectArray(1);
         putoa(obj3,0,KpoInteger((int) buf.st_size));
         putoa(rob,1,obj3); /* We have not yet read buf fully */
       }
     }else if (strcmp(key,"forkExec")==0) {
       if (size != 4) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension.");
       obj1 = getoa(obj,1);
       if (obj1.tag != Sarray) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. array argList.");
       obj2 = getoa(obj,2);
       if (obj2.tag != Sarray) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. array fdList.");
       obj3 = getoa(obj,3);
       if (obj3.tag != Sinteger) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. integer sigblock.");
       m = KopInteger(obj3);  /* m&1 : block ctrl-C. */
       argListc = getoaSize(obj1);
       fdListc =  getoaSize(obj2);
       if ((pid = fork()) > 0) {
         /* parent */
         if (m&2) {
            /* Do not call singal to turn around a trouble on cygwin. BUG. */
       }else{        }else{
         abc2 = (char *)sGC_malloc(sizeof(char)*(strlen(abc)+2));           signal(SIGCHLD,mywait); /* to kill Zombie */
         strcpy(abc2,abc);  
         rob = KpoString(abc2);  
       }        }
     }else if (strcmp(key,"stat")==0) {        Mychildren[Mycp++] = pid;
       if (size != 2) errorKan1("%s\n","[(stat) fname] extension.");        if (Mycp >= MYCP_SIZE-1) {
       obj1 = getoa(obj,1);          errorKan1("%s\n","Child process table is full.\n");
       if (obj1.tag != Sdollar) errorKan1("%s\n","[(stat) fname] extension ; string fname.");          Mycp = 0;
       m = stat(KopString(obj1),&buf);  
       rob = newObjectArray(2);  
       if (m == -1) {  
         /* fail */  
         obj2 = NullObject;  
         putoa(rob,0,obj2);  
         obj3 = newObjectArray(2);  
         putoa(obj3,0,KpoString("error no"));  
         putoa(obj3,1,KpoInteger(errno));  
         putoa(rob,1,obj3);  
       }else{  
         /* success */  
         putoa(rob,0,KpoInteger(0));  
         putoa(rob,1,newObjectArray(0)); /* We have not yet read buf */  
       }        }
     }else if (strcmp(key,"forkExec")==0) {        rob = KpoInteger(pid);
       if (size != 4) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension.");        /* Done */
       obj1 = getoa(obj,1);      }else{
       if (obj1.tag != Sarray) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. array argList.");        /* Child */
       obj2 = getoa(obj,2);        for (i=0; i<fdListc; i++) {
       if (obj2.tag != Sarray) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. array fdList.");          /* close the specified files */
       obj3 = getoa(obj,3);          close(KopInteger(getoa(obj2,i)));
       if (obj3.tag != Sinteger) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. integer sigblock.");  
       m = KopInteger(obj3);  /* m == 1 : block ctrl-C. */  
       argListc = getoaSize(obj1);  
       fdListc =  getoaSize(obj2);  
       if ((m = fork()) > 0) {  
         /* parent */  
         signal(SIGCHLD,mywait); /* to kill Zombie */  
         Mychildren[Mycp++] = m;  
         if (Mycp >= MYCP_SIZE-1) {  
           errorKan1("%s\n","Child process table is full.\n");  
           Mycp = 0;  
         }  
         rob = KpoInteger(m);  
         /* Done */  
       }else{  
         /* Child */  
         for (i=0; i<fdListc; i++) {  
           /* close the specified files */  
           close(KopInteger(getoa(obj2,i)));  
         }  
         /* execl */  
         if (m == 1) {  
           {  
             sigset_t sss;  
             sigemptyset(&sss);  
             sigaddset(&sss,SIGINT);  
             sigprocmask(SIG_BLOCK,&sss,NULL);  
           }  
         }  
         argv = (char **) sGC_malloc(sizeof(char *)*(argListc+1));  
         if (argv == NULL) {  
           fprintf(stderr," no more momory. forkExec --- exiting.\n");  
           _exit(10);  
         }  
         for (i=0; i<argListc; i++) {  
           argv[i] = KopString(getoa(obj1,i));  
           argv[i+1] = NULL;  
         }  
         execv(argv[0],argv);  
         /* This place will never be reached unless execv fails. */  
         fprintf(stderr,"forkExec fails: ");  
         for (i=0; i<argListc; i++) {  
           fprintf(stderr,"%s ",argv[i]);  
         }  
         fprintf(stderr,"\nExiting, but staying as Zombie.\n");  
         _exit(10);  
       }        }
     }else if (strcmp(key,"getchild")==0) {        /* execl */
       if (size != 1) errorKan1("%s\n","[(getchild)] extension.");        if (m&1) {
       rob = newObjectArray(Mycp);          {
       for (i=0; i<Mycp; i++) {            sigset_t sss;
         putoa(rob,i,KpoInteger(Mychildren[i]));            sigemptyset(&sss);
             sigaddset(&sss,SIGINT);
             sigprocmask(SIG_BLOCK,&sss,NULL);
           }
       }        }
     }else if (strcmp(key,"getUniqueFileName")==0) {        argv = (char **) sGC_malloc(sizeof(char *)*(argListc+1));
       if (size != 2) errorKan1("%s\n","[(getUniqueFileName) path] extension.");        if (argv == NULL) {
       obj1 = getoa(obj,1);          fprintf(stderr," no more momory. forkExec --- exiting.\n");
       if (obj1.tag != Sdollar) errorKan1("%s\n","[(getUniqueFileName) path] extension. path must be a string.");          _exit(10);
       rob = KpoString(ext_generateUniqueFileName(KopString(obj1)));        }
     }else if (strcmp(key,"outputObjectToFile")==0) {        for (i=0; i<argListc; i++) {
       if (size != 3) errorKan1("%s\n","[(outputObjectToFile) path obj] extension.");          argv[i] = KopString(getoa(obj1,i));
       obj1 = getoa(obj,1);          argv[i+1] = NULL;
       if (obj1.tag != Sdollar) errorKan1("%s\n","[(outputObjectToFile) path obj] extension. path must be a string.");        }
       obj2 = getoa(obj,2);  
       fp = fopen(KopString(obj1),"w");        if (m&4) {
       if (fp == NULL) errorKan1("%s\n","[(outputObjectToFile) path object] extension : could not open the path.");          fprintf(stderr,"execv %s\n",argv[0]);
       printObject(obj2,0,fp);          sleep(5);
       fclose(fp);          fprintf(stderr,">>>\n");
       rob = NullObject;        }
     }else if (strcmp(key,"hilbert")==0) {        execv(argv[0],argv);
       if (size != 3) errorKan1("%s\n","[(hilbert) obgb obvlist] extension.");        /* This place will never be reached unless execv fails. */
       rob = hilberto(getoa(obj,1),getoa(obj,2));        fprintf(stderr,"forkExec fails: ");
     }else if (strcmp(key,"chattr")==0) {        for (i=0; i<argListc; i++) {
       if (size != 3) errorKan1("%s\n","[(chattr)  num symbol] extension.");          fprintf(stderr,"%s ",argv[i]);
       obj1 = getoa(obj,1);        }
       obj2 = getoa(obj,2);        fprintf(stderr,"\nExiting, but staying as Zombie.\n");
       if (obj1.tag != Sinteger) errorKan1("%s\n","[(chattr)  num symbol] extension.");        _exit(10);
       if (obj2.tag != Sstring)  errorKan1("%s\n","[(chattr)  num symbol] extension.");  
       m = KopInteger(obj1);  
       if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT))  
         errorKan1("%s\n","The number must be 0, 1 or 2.");  
       putUserDictionary2(obj2.lc.str,(obj2.rc.op->lc).ival,(obj2.rc.op->rc).ival,  
                          m,CurrentContextp->userDictionary);  
     }      }
     }else if (strcmp(key,"getchild")==0) {
       if (size != 1) errorKan1("%s\n","[(getchild)] extension.");
       rob = newObjectArray(Mycp);
       for (i=0; i<Mycp; i++) {
         putoa(rob,i,KpoInteger(Mychildren[i]));
       }
     }else if (strcmp(key,"getUniqueFileName")==0) {
       if (size != 2) errorKan1("%s\n","[(getUniqueFileName) path] extension.");
       obj1 = getoa(obj,1);
       if (obj1.tag != Sdollar) errorKan1("%s\n","[(getUniqueFileName) path] extension. path must be a string.");
       rob = KpoString(ext_generateUniqueFileName(KopString(obj1)));
     }else if (strcmp(key,"outputObjectToFile")==0) {
       if (size != 3) errorKan1("%s\n","[(outputObjectToFile) path obj] extension.");
       obj1 = getoa(obj,1);
       if (obj1.tag != Sdollar) errorKan1("%s\n","[(outputObjectToFile) path obj] extension. path must be a string.");
       obj2 = getoa(obj,2);
       fp = fopen(KopString(obj1),"w");
       if (fp == NULL) errorKan1("%s\n","[(outputObjectToFile) path object] extension : could not open the path.");
       printObject(obj2,0,fp);
       fclose(fp);
       rob = NullObject;
     }else if (strcmp(key,"hilbert")==0) {
       if (size != 3) errorKan1("%s\n","[(hilbert) obgb obvlist] extension.");
       rob = hilberto(getoa(obj,1),getoa(obj,2));
     }else if (strcmp(key,"chattr")==0) {
       if (size != 3) errorKan1("%s\n","[(chattr)  num symbol] extension.");
       obj1 = getoa(obj,1);
       obj2 = getoa(obj,2);
       if (obj1.tag != Sinteger) errorKan1("%s\n","[(chattr)  num symbol] extension.");
       if (obj2.tag != Sstring)  errorKan1("%s\n","[(chattr)  num symbol] extension.");
       m = KopInteger(obj1);
       if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT))
         errorKan1("%s\n","The number must be 0, 1 or 2.");
       putUserDictionary2(obj2.lc.str,(obj2.rc.op->lc).ival,(obj2.rc.op->rc).ival,
                          m,CurrentContextp->userDictionary);
     }else if (strcmp(key,"ostype")==0) {
       rob = newObjectArray(1);
       /* Hard encode the OS type. */
   #if defined(__CYGWIN__)
       putoa(rob,0,KpoString("windows"));
   #else
       putoa(rob,0,KpoString("unix"));
   #endif
     }
 #include "plugin.hh"  #include "plugin.hh"
   else{    else{
     errorKan1("%s\n","Unknown tag for extension.");      errorKan1("%s\n","Unknown tag for extension.");
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