===================================================================
RCS file: /home/cvs/OpenXM/src/kan96xx/Kan/ext.c,v
retrieving revision 1.6
retrieving revision 1.33
diff -u -p -r1.6 -r1.33
--- OpenXM/src/kan96xx/Kan/ext.c	2001/08/09 22:13:58	1.6
+++ OpenXM/src/kan96xx/Kan/ext.c	2004/11/23 01:37:47	1.33
@@ -1,4 +1,4 @@
-/* $OpenXM: OpenXM/src/kan96xx/Kan/ext.c,v 1.5 2001/05/04 01:06:23 takayama Exp $ */
+/* $OpenXM: OpenXM/src/kan96xx/Kan/ext.c,v 1.32 2004/09/17 12:32:11 takayama Exp $ */
 #include <stdio.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -12,17 +12,26 @@
 #include "extern2.h"
 #include <signal.h>
 #include "plugin.h"
+#include "kclass.h"
+#include <ctype.h>
+#include <errno.h>
+#include <regex.h>
+#include "ox_pathfinder.h"
 
+extern int Quiet;
+extern char **environ;
+
 #define MYCP_SIZE 100
 static int Mychildren[MYCP_SIZE];
 static int Mycp = 0;
+static int Verbose_mywait = 0;
 static void mywait() {
   int status;
   int pid;
   int i,j;
-  signal(SIGCHLD,SIG_IGN);
+  /* signal(SIGCHLD,SIG_IGN); */
   pid = wait(&status);
-  fprintf(stderr,"Child process %d is exiting.\n",pid);
+  if ((!Quiet) && (Verbose_mywait)) fprintf(stderr,"Child process %d is exiting.\n",pid);
   for (i=0; i<Mycp; i++) {
     if (Mychildren[i]  == pid) {
       for (j=i; j<Mycp-1; j++) {
@@ -35,9 +44,14 @@ static void mywait() {
 }
 
 #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 void pushEnv(jmp_buf jb) {
+static void pushEnv(JMP_BUF jb) {
   if (Envp < SIZE_OF_ENVSTACK) {
     *(EnvStack[Envp]) = *jb;
     Envp++;
@@ -46,7 +60,7 @@ static void pushEnv(jmp_buf jb) {
     exit(2);
   }
 }
-static void popEnv(jmp_buf jbp) {
+static void popEnv(JMP_BUF jbp) {
   if (Envp <= 0) {
     fprintf(stderr,"Underflow of EnvStack.\n");
     exit(3);
@@ -74,6 +88,8 @@ static char *ext_generateUniqueFileName(char *s)
   return(NULL);
 }
 
+static struct object oregexec(struct object oregex,struct object ostrArray,struct object oflag);
+
 struct object Kextension(struct object obj)
 {
   char *key;
@@ -81,15 +97,18 @@ struct object Kextension(struct object obj)
   struct object keyo;
   struct object rob = NullObject;
   struct object obj1,obj2,obj3,obj4;
-  int m,i,pid;
+  int m,i,pid, uid;
   int argListc, fdListc;
   char *abc;
   char *abc2;
   extern struct context *CurrentContextp;
+#if (__CYGWIN__)
+  extern sigjmp_buf EnvOfStackMachine;
+#else
   extern jmp_buf EnvOfStackMachine;
+#endif
   extern void ctrlC();
   extern int SigIgn;
-  extern errno;
   extern int DebugCMO;
   extern int OXprintMessage;
   struct stat buf;
@@ -97,6 +116,8 @@ struct object Kextension(struct object obj)
   FILE *fp;
   void (*oldsig)();
   extern SecureMode;
+  extern char *UD_str;
+  extern int UD_attr;
 
   if (obj.tag != Sarray) errorKan1("%s\n","Kextension(): The argument must be an array.");
   size = getoaSize(obj);
@@ -130,10 +151,17 @@ struct object Kextension(struct object obj)
     obj1 = getoa(obj,1);
     if (obj1.tag != Sinteger) errorKan1("%s\n","[(chattrs)  num] extension.");
     m = KopInteger(obj1);
-    if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT))
-      errorKan1("%s\n","The number must be 0, 1 or 2.");
+	/* if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT || m == ATTR_INFIX))
+	   errorKan1("%s\n","The number must be 0, 1 or 2.");*/
     putUserDictionary2((char *)NULL,0,0,m | SET_ATTR_FOR_ALL_WORDS,
                        CurrentContextp->userDictionary);
+  }else if (strcmp(key,"or_attrs")==0) {
+    if (size != 2) errorKan1("%s\n","[(or_attrs)  num] extension.");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sinteger) errorKan1("%s\n","[(or_attrs)  num] extension.");
+    m = KopInteger(obj1);
+    putUserDictionary2((char *)NULL,0,0,m | OR_ATTR_FOR_ALL_WORDS,
+                       CurrentContextp->userDictionary);
   }else if (strcmp(key,"keywords")==0) {
     if (size != 1) errorKan1("%s\n","[(keywords)] extension.");
     rob = showSystemDictionary(1);
@@ -152,7 +180,17 @@ struct object Kextension(struct object obj)
     obj1 = getoa(obj,1);
     if (obj1.tag != Sdollar) errorKan1("%s\n","[(getenv) envstr] extension");
     abc = getenv(KopString(obj1));
+#if defined(__CYGWIN__)
     if (abc == NULL) {
+	  abc2 = (char *)sGC_malloc(sizeof(char)*(strlen(KopString(obj1))+2));
+      strcpy(abc2,KopString(obj1));
+	  for (i=0; i<strlen(abc2); i++) {
+		abc2[i] = toupper(abc2[i]);
+	  }
+      abc = getenv(abc2);
+    }
+#endif
+    if (abc == NULL) {
       rob = NullObject;
     }else{
       abc2 = (char *)sGC_malloc(sizeof(char)*(strlen(abc)+2));
@@ -180,20 +218,29 @@ struct object Kextension(struct object obj)
       putoa(obj3,0,KpoInteger((int) buf.st_size));
       putoa(rob,1,obj3); /* We have not yet read buf fully */
     }
+  }else if (strcmp(key,"gethostname")==0) {
+    abc = (char *)sGC_malloc(sizeof(char)*1024);
+    if (gethostname(abc,1023) < 0) {
+	  errorKan1("%s\n","hostname could not be obtained.");
+	}
+	rob = KpoString(abc);
   }else if (strcmp(key,"forkExec")==0) {
     if (size != 4) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension.");
     obj1 = getoa(obj,1);
+	if (obj1.tag == Sdollar) {
+	  obj1 = KstringToArgv(obj1);
+	}
     if (obj1.tag != Sarray) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. array argList.");
-    obj2 = getoa(obj,2);
+	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. */
+    m = KopInteger(obj3);  /* m&1 : block ctrl-C. */
     argListc = getoaSize(obj1);
     fdListc =  getoaSize(obj2);
     if ((pid = fork()) > 0) {
       /* parent */
-      if (m&3) {
+      if (m&2) {
          /* Do not call singal to turn around a trouble on cygwin. BUG. */
       }else{
          signal(SIGCHLD,mywait); /* to kill Zombie */
@@ -212,7 +259,7 @@ struct object Kextension(struct object obj)
         close(KopInteger(getoa(obj2,i)));
       }
       /* execl */
-      if ((m&1) == 1) {
+      if (m&1) {
         {
           sigset_t sss;
           sigemptyset(&sss);
@@ -229,7 +276,13 @@ struct object Kextension(struct object obj)
         argv[i] = KopString(getoa(obj1,i));
         argv[i+1] = NULL;
       }
-      execv(argv[0],argv);
+      
+      if (m&4) {
+	fprintf(stderr,"execv %s\n",argv[0]);
+	sleep(5);
+        fprintf(stderr,">>>\n");
+      }
+      execve(argv[0],argv,environ);
       /* This place will never be reached unless execv fails. */
       fprintf(stderr,"forkExec fails: ");
       for (i=0; i<argListc; i++) {
@@ -262,6 +315,18 @@ struct object Kextension(struct object obj)
   }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,"nobody") == 0) {
+      uid = getuid();
+	  if (uid == 0) {
+#define NOBODY 65534
+		/* If I'm a super user, then change uid to nobody. */
+		if (setuid(NOBODY) != 0) {
+		  fprintf(stderr,"Failed to change uid to nobody (%d)\n",NOBODY);
+		  exit(10);
+		}
+		fprintf(stderr,"uid is changed to nobody (%d).\n",NOBODY);
+		rob.tag = Snull;
+	  }
   }else if (strcmp(key,"chattr")==0) {
     if (size != 3) errorKan1("%s\n","[(chattr)  num symbol] extension.");
     obj1 = getoa(obj,1);
@@ -269,17 +334,263 @@ struct object Kextension(struct object obj)
     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.");
+	/* if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT || m == ATTR_INFIX))
+	   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,"or_attr")==0) {
+    if (size != 3) errorKan1("%s\n","[(or_attr)  num symbol] extension.");
+    obj1 = getoa(obj,1);
+    obj2 = getoa(obj,2);
+    if (obj1.tag != Sinteger) errorKan1("%s\n","[(or_attr)  num symbol] extension.");
+    if (obj2.tag != Sstring)  errorKan1("%s\n","[(or_attr)  num symbol] extension.");
+    m = KopInteger(obj1);
+    rob = KfindUserDictionary(obj2.lc.str);
+    if (rob.tag != NoObject.tag) {
+      if (strcmp(UD_str,obj2.lc.str) == 0) {
+        m |= UD_attr;
+      }else errorKan1("%s\n","or_attr: internal error.");
+    }
+    rob = KpoInteger(m);
+    putUserDictionary2(obj2.lc.str,(obj2.rc.op->lc).ival,(obj2.rc.op->rc).ival,
+                       m,CurrentContextp->userDictionary);
+  }else if (strcmp(key,"getattr")==0) {
+    if (size != 2) errorKan1("%s\n","[(getattr) symbol] extension.");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sstring)  errorKan1("%s\n","[(getattr) symbol] extension.");
+    rob = KfindUserDictionary(obj1.lc.str);
+	if (rob.tag != NoObject.tag) {
+	  if (strcmp(UD_str,obj1.lc.str) == 0) {
+		rob = KpoInteger(UD_attr);
+	  }else errorKan1("%s\n","getattr: internal error.");
+	}else rob = NullObject;
+  }else if (strcmp(key,"getServerEnv")==0) {
+    if (size != 2) errorKan1("%s\n","[(getServerEnv) serverName] extension.");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sdollar) errorKan1("%s\n","[(getServerEnv) serverName] extension.");
+    {
+      char **se; int ii; int nn;
+      se = getServerEnv(KopString(obj1));
+      if (se == NULL) {
+        debugServerEnv(KopString(obj1));
+        rob = NullObject;
+      }else{
+        for (ii=0,nn=0; se[ii] != NULL; ii++) nn++;
+        rob = newObjectArray(nn);
+        for (ii=0; ii<nn; ii++) {
+          putoa(rob,ii,KpoString(se[ii]));
+        }
+      }
+    }
+  }else if (strcmp(key,"read")==0) {
+    if (size != 3) errorKan1("%s\n","[(read) fd size] extension.");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sinteger) errorKan1("%s\n","[(read) fd size] extension. fd must be an integer.");
+    obj2 = getoa(obj,2);
+    if (obj2.tag != Sinteger) errorKan1("%s\n","[(read) fd size] extension. size must be an integer.");
+    {
+      int total, n, fd;
+      char *s; char *s0;
+      fd = KopInteger(obj1);
+      total = KopInteger(obj2);
+      if (total <= 0) errorKan1("%s\n","[(read) ...]; negative size has not yet been implemented.");
+      /* Return a string. todo: implement SbyteArray case. */
+      s0 = s = (char *) sGC_malloc(total+1);
+      if (s0 == NULL) errorKan1("%s\n","[(read) ...]; no more memory."); 
+      while (total >0) {
+        n = read(fd, s, total);
+        if (n < 0) { perror("read"); errorKan1("%s\n","[(read) ...]; read error.");}
+        s[n] = 0;
+        total -= n;  s = &(s[n]);
+      }
+      rob = KpoString(s0);
+    }
+  }else if (strcmp(key,"regionMatches")==0) {
+    if (size != 3) errorKan1("%s\n","[(regionMatches) str strArray] extension.");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sdollar) errorKan1("%s\n","[(regionMatches) str strArray] extension. str must be a string.");
+	obj2 = getoa(obj,2);
+    if (obj2.tag != Sarray) errorKan1("%s\n","[(regionMatches) str strArray] extension. strArray must be an array.");
+    rob = KregionMatches(obj1,obj2);
+  }else if (strcmp(key,"newVector")==0) {
+    if (size != 2) errorKan1("%s\n","[(newVector) m] extension.");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sinteger) errorKan1("%s\n","[(newVector) m] extension. m must be an integer.");
+    rob = newObjectArray(KopInteger(obj1));
+  }else if (strcmp(key,"newMatrix")==0) {
+    if (size != 3) errorKan1("%s\n","[(newMatrix) m n] extension.");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sinteger) errorKan1("%s\n","[(newMatrix) m n] extension. m must be an integer.");
+	obj2 = getoa(obj,2);
+    if (obj2.tag != Sinteger) errorKan1("%s\n","[(newMatrix) m n] extension. n must be an integer.");
+    rob = newObjectArray(KopInteger(obj1));
+	for (i=0; i<KopInteger(obj1); i++) {
+      putoa(rob,i,newObjectArray(KopInteger(obj2)));
+	}
+  }else if (strcmp(key,"ooPower")==0) {
+    if (size != 3) errorKan1("%s\n","[(ooPower) a b] extension.");
+    obj1 = getoa(obj,1);
+	obj2 = getoa(obj,2);
+    rob = KooPower(obj1,obj2);
+  }else if (strcmp(key,"Krest")==0) {
+    if (size != 2) errorKan1("%s\n","[(Krest) a] extension b");
+    obj1 = getoa(obj,1);
+    rob = Krest(obj1);
+  }else if (strcmp(key,"Kjoin")==0) {
+    if (size != 3) errorKan1("%s\n","[(Kjoin) a b] extension c");
+    obj1 = getoa(obj,1);
+	obj2 = getoa(obj,2);
+    rob = Kjoin(obj1,obj2);
+  }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
+  }else if (strcmp(key,"traceClearStack")==0) {
+    traceClearStack();
+    rob = NullObject;
+  }else if (strcmp(key,"traceShowStack")==0) {
+    char *ssst;
+    ssst = traceShowStack();
+    if (ssst != NULL) {
+      rob = KpoString(ssst);
+    }else{
+      rob = NullObject;
+    }
+  }else if (strcmp(key,"regexec")==0) {
+    if ((size != 3) && (size != 4)) errorKan1("%s\n","[(regexec) reg strArray flag(optional)] extension b");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sdollar) errorKan1("%s\n","regexec, the first argument should be a string (regular expression).");
+    obj2 = getoa(obj,2); 
+    if (obj2.tag != Sarray) errorKan1("%s\n","regexec, the second argument should be an array of a string.");
+    if (size == 3) obj3 = newObjectArray(0);
+    else obj3 = getoa(obj,3);
+    rob = oregexec(obj1,obj2,obj3);
+
   }
 #include "plugin.hh"
+#include "Kclass/tree.hh"
   else{
-    errorKan1("%s\n","Unknown tag for extension.");
+	fprintf(stderr,"key=%s; ",key);
+    errorKan1("%s\n","Unknown key for extension.");
   }
 
 
   return(rob);
 }
 
+struct object KregionMatches(struct object sobj, struct object keyArray)
+{
+  struct object rob;
+  int n,i,j,m,keyn;
+  char *s,*key;
+  rob = newObjectArray(3);
+  getoa(rob,0) = KpoInteger(-1);
+  getoa(rob,1) = NullObject;
+  getoa(rob,2) = NullObject;
+
+  if (sobj.tag != Sdollar) return rob;
+  if (keyArray.tag != Sarray) return rob;
+  n = getoaSize(keyArray);
+  for (i=0; i<n; i++) {
+	if (getoa(keyArray,i).tag != Sdollar) { return rob; }
+  }
+
+  s = KopString(sobj);
+  m = strlen(s);
+
+  for (i=0; i<n; i++) {
+	key = KopString(getoa(keyArray,i));
+	keyn = strlen(key);
+	for (j=0; j<m; j++) {
+	  if (strncmp(&(s[j]),key,keyn) == 0) {
+		getoa(rob,0) = KpoInteger(j);
+		getoa(rob,1) = KpoString(key);
+		getoa(rob,2) = KpoInteger(i);
+		return rob;
+	  }
+	}
+  }
+  return rob;
+}
+
+static struct object oregexec(struct object oregex,struct object ostrArray,struct object oflag) {
+  struct object rob;
+  struct object ob;
+  int n,i,j,m,keyn,cflag,eflag,er;
+  char *regex;
+  regex_t preg;
+  char *s;
+  char *mbuf; int mbufSize;
+#define REGMATCH_SIZE 100
+  regmatch_t pmatch[100]; size_t nmatch;
+  int size;
+
+  nmatch = (size_t) REGMATCH_SIZE;
+  rob = newObjectArray(0);
+  mbufSize = 1024;
+
+  if (oregex.tag != Sdollar) return rob;
+  if (ostrArray.tag != Sarray) return rob;
+  n = getoaSize(ostrArray);
+  for (i=0; i<n; i++) {
+    if (getoa(ostrArray,i).tag != Sdollar) { return rob; }
+  }
+  if (oflag.tag != Sarray) errorKan1("%s\n","oregexec: oflag should be an array of integers.");
+  cflag = eflag = 0;
+  oflag = Kto_int32(oflag);
+  for (i=0; i<getoaSize(oflag); i++) {
+    ob = getoa(oflag,i);
+    if (ob.tag != Sinteger) errorKan1("%s\n","oregexec: oflag is not an array of integers.");
+    if (i == 0) cflag = KopInteger(ob);
+    if (i == 1) eflag = KopInteger(ob);
+  }
+
+  regex = KopString(oregex);
+  if (er=regcomp(&preg,regex,cflag)) {
+    mbuf = (char *) sGC_malloc(mbufSize);
+    if (mbuf == NULL) errorKan1("%s\n","No more memory.");
+    regerror(er,&preg,mbuf,mbufSize-1);
+    errorKan1("regcomp error: %s\n",mbuf);
+  }
+
+  size = 0; /* We should use list instead of counting the size. */
+  for (i=0; i<n; i++) {
+    s = KopString(getoa(ostrArray,i));
+    er=regexec(&preg,s,nmatch,pmatch,eflag);
+    if ((er != 0) && (er != REG_NOMATCH)) { 
+      mbuf = (char *) sGC_malloc(mbufSize);
+      if (mbuf == NULL) errorKan1("%s\n","No more memory.");
+      regerror(er,&preg,mbuf,mbufSize-1);
+      errorKan1("regcomp error: %s\n",mbuf);
+    }
+    if (er == 0) size++;
+  }
+
+  rob = newObjectArray(size);
+  size = 0;
+  for (i=0; i<n; i++) {
+    s = KopString(getoa(ostrArray,i));
+    er=regexec(&preg,s,nmatch,pmatch,eflag);
+    if ((er != 0) && (er != REG_NOMATCH)) { 
+      mbuf = (char *) sGC_malloc(mbufSize);
+      if (mbuf == NULL) errorKan1("%s\n","No more memory.");
+      regerror(er,&preg,mbuf,mbufSize-1);
+      errorKan1("regcomp error: %s\n",mbuf);
+    }
+    if (er == 0) {
+      ob = newObjectArray(3);
+      putoa(ob,0,KpoString(s));
+      /* temporary */
+      putoa(ob,1,KpoInteger((int) (pmatch[0].rm_so)));
+      putoa(ob,2,KpoInteger((int) (pmatch[0].rm_eo)));
+      putoa(rob,size,ob);
+      size++;
+    }
+  }
+  regfree(&preg);
+  return rob;
+}