===================================================================
RCS file: /home/cvs/OpenXM/src/kxx/oxmain.c,v
retrieving revision 1.1.1.1
retrieving revision 1.30
diff -u -p -r1.1.1.1 -r1.30
--- OpenXM/src/kxx/oxmain.c	1999/10/08 02:12:13	1.1.1.1
+++ OpenXM/src/kxx/oxmain.c	2020/10/07 07:47:23	1.30
@@ -1,37 +1,68 @@
+/*  $OpenXM: OpenXM/src/kxx/oxmain.c,v 1.29 2016/09/26 11:43:38 takayama Exp $  */
+/*  Note on IntelMac. [2006.06.05]
+    SIGINT does not seem to be blocked on the rosetta emulator of ppc
+    on the IntelMac's. "ox" should be universal binary.
+   A dirty hack to generate a universal binary of ox is as follows.
+   (1) Add -arch ppc -arch i386 to CFLAGS in src/kxx/Makefile
+       and src/kan96xx/plugin/Makefile
+   (2) Build ox
+*/
 /* nullserver01 */
 #include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/wait.h>
 #include <netinet/in.h>
 #include <netdb.h>
 #include <signal.h>
 #include <setjmp.h>
+#include <stdlib.h>
 /* -lnsl -lsocket /usr/ucblib/libucb.a */
 #include "ox_kan.h"
 #include "serversm.h"
 
-#define SERVERNAME "/home/nobuki/kxx/ox_sm1"
-/*
-#define SERVERNAME "/home/nobuki/kxx/stdserver00"
-#define SERVERNAME "/home/ftp/pub/OHP/ox_asir"
-*/
+#define SERVERNAME "ox_sm1"
 
+void oxmainUsage();
+void parentServerMain(int fdControl, int fdStream);
+int childServerMain(int fdControl, int fdStream);
+void unlockCtrlCForOx();
+void restoreLockCtrlCForOx();
+
+
+extern char **environ;
 int OxCritical = 0;
 int OxInterruptFlag = 0;
+int OxTerminateMode = 0;
 
 int SerialCurrentControl;
 
 int MyServerPid;
-char ServerName[1024];
+#define SERVERNAME_SIZE 4096
+char ServerName[SERVERNAME_SIZE];
 int PacketMonitor = 0;
 int Quiet = 0;
 
 int LocalMode = 1;
 int NotifyPortnumber = 0;
+int Do_not_use_control_stream_to_tell_no_server = 1;
+int IgnoreSIGINT = 1;
+int Ox_protocol_1999 = 0;
+static void errorToStartEngine(void);
+static int findOxServer(char *server);
+static void couldNotFind(char *s);
+/*  gcc -v -c hoge.c */
+static void mywait(int m);
 
+void *sGC_malloc(int n) {
+  return (void *)malloc(n);
+}
 
-main(int argc, char *argv[]) {
+void main(int argc, char *argv[]) {
   int fd;
   int size;
   char sname[1024];
@@ -43,11 +74,25 @@ main(int argc, char *argv[]) {
   int reverse = 0;
   extern int OpenedSocket;
   char portfile[1024];
-  char *pass;
+  char *pass = NULL;
+  char *passControl = NULL;
+  char *passData = NULL;
+  int result;
+  int sleepingTime = 0;
+  int authEncoding=0;
+  FILE *fp;
+  char *stmp;
+  extern int OxTerminateMode;
 
+  int sighup[]={SIGHUP,-1};
+  block_signal(sighup);  /* ignore x of xterm */
   strcpy(sname,"localhost");
   strcpy(ServerName,SERVERNAME);
   i = 1;
+  if (argc == 1) {
+    oxmainUsage();
+    exit(10);
+  }
   while (i<argc) {
     if (strcmp(argv[i],"-host") == 0) {
       i++;
@@ -67,19 +112,51 @@ main(int argc, char *argv[]) {
       LocalMode = 0;
     }else if (strcmp(argv[i],"-reverse") == 0) {
       reverse = 1;
+    }else if (strcmp(argv[i],"-finish") == 0) {
+      OxTerminateMode = 1;
     }else if (strcmp(argv[i],"-portfile") == 0) {
       i++;
       if (i<argc) {
-	sscanf(argv[i],"%s",portfile);
-	portControl = 0;
-	portStream = 0;
-	NotifyPortnumber = 1;
+        sscanf(argv[i],"%s",portfile);
+        portControl = 0;
+        portStream = 0;
+        NotifyPortnumber = 1;
       }
     }else if (strcmp(argv[i],"-pass") == 0) {
       i++;
       if (i<argc) {
-	pass = argv[i];
+        pass = argv[i];
       }
+    }else if (strcmp(argv[i],"-passData") == 0) {
+      i++;
+      if (i<argc) {
+        passData = argv[i];
+      }
+    }else if (strcmp(argv[i],"-passControl") == 0) {
+      i++;
+      if (i<argc) {
+        passControl = argv[i];
+      }
+    }else if (strcmp(argv[i],"-wait") == 0) {
+      i++;
+      if (i<argc) {
+        sscanf(argv[i],"%d",&sleepingTime);
+      }
+    }else if (strcmp(argv[i],"-authEncoding") == 0) {
+      i++;
+      if (strcmp(argv[i],"file") == 0) {
+        authEncoding = 1;
+      }else{
+        fprintf(stderr,"Unknown -authEncoding %s.\n",argv[i]);
+        oxmainUsage(); exit(10);
+      }
+    }else if (strcmp(argv[i],"-ignoreSIGINT") == 0) {
+      i++;
+      if (i<argc) {
+        sscanf(argv[i],"%d",&IgnoreSIGINT);
+      }
+    }else if (strcmp(argv[i],"-protocol_1999") == 0) {
+      Ox_protocol_1999=1;
     }else {
       fprintf(stderr,"Unknown option %s.\n",argv[i]);
       oxmainUsage(); exit(10);
@@ -87,20 +164,69 @@ main(int argc, char *argv[]) {
     i++;
   }
 
+  if (Do_not_use_control_stream_to_tell_no_server) {
+    if (findOxServer(ServerName) < 0) {
+      fprintf(stderr,"Sleeping five seconds...\n");
+      sleep(5);
+      exit(-1);
+    }
+  }
+
+  if (sleepingTime) {
+    fprintf(stderr,"Waiting to connect for %d seconds...\n",sleepingTime);
+    sleep(sleepingTime);
+    fprintf(stderr,"\nTrying to connect\n");
+  }
+
+  if ((pass != NULL) && (passData == NULL)) {
+	passData = pass;
+  }
+  if ((pass != NULL) && (passControl == NULL)) {
+    passControl = pass;
+  }
+
+  /* Decrypt passControl and passData, here. Lookup cryptmethod. */
+  if (authEncoding == 1) {
+	stmp = (char *)sGC_malloc(strlen(getenv("HOME"))+strlen(passControl)+
+							  strlen(passData)+128);
+	sprintf(stmp,"%s/.openxm/tmp.opt/%s",(char *)getenv("HOME"),passControl);
+	fp = fopen(stmp,"r");
+	if (fp == NULL) { fprintf(stderr,"passControl file %s is not found.\n",stmp); exit(1);}
+	{char *rrr; rrr=fgets(stmp,127,fp);} passControl = stmp; fclose(fp);
+
+	stmp = (char *)sGC_malloc(strlen(getenv("HOME"))+strlen(passControl)+
+							  strlen(passData)+128);
+	sprintf(stmp,"%s/.openxm/tmp.opt/%s",(char *)getenv("HOME"),passData);
+	fp = fopen(stmp,"r");
+	if (fp == NULL) { fprintf(stderr,"passData file %s is not found.\n",stmp); exit(1);}
+	{char *rrr; rrr=fgets(stmp,127,fp);} passData = stmp; fclose(fp);
+  }
+
   if (reverse) {
     /* The order is very important. */
-    fdControl = socketConnectWithPass(sname,portControl,pass);
-    fdStream = socketConnectWithPass(sname,portStream,pass);
+    fdControl = socketConnectWithPass(sname,portControl,passControl);
+    fdStream = socketConnectWithPass(sname,portStream,passData);
 
     fprintf(stderr,"Connected: control = %d, data = %d.\n",fdControl,fdStream);
+    result = 0;
+
+
+    if ((fdControl < 0) ||  (fdStream < 0)) {
+      fprintf(stderr,"Waiting for 10 seconds to show an error.\n");
+      sleep(10);
+    }
+
     if (portControl != -1) {
       MyServerPid = fork();
       if (MyServerPid > 0 ) parentServerMain(fdControl,fdStream);
-      else childServerMain(fdControl,fdStream);
+      else result=childServerMain(fdControl,fdStream);
     }else{
-      childServerMain(fdControl,fdStream);
+      result=childServerMain(fdControl,fdStream);
     }
-    /* This line will be never executed. */
+    /* This line will be never executed in case of success */
+    if (result < 0 ) {
+      errorToStartEngine();
+    }
   }
 
   /* non-reverse case. */
@@ -115,7 +241,7 @@ main(int argc, char *argv[]) {
       fdControl = socketOpen(sname,portControl);
       portControl = OpenedSocket;
       if (NotifyPortnumber) {
-	oxWritePortFile(0,portControl,portfile);
+        oxWritePortFile(0,portControl,portfile);
       }
       fdControl = socketAcceptLocal(fdControl);
       fprintf(stderr,"\n control port %d : Connected.\n",portControl);
@@ -124,7 +250,7 @@ main(int argc, char *argv[]) {
       fdStream = socketOpen(sname,portStream);
       portStream = OpenedSocket;
       if (NotifyPortnumber) {
-	oxWritePortFile(1,portStream,portfile);
+        oxWritePortFile(1,portStream,portfile);
       }
       fdStream = socketAcceptLocal(fdStream);
       fprintf(stderr,"\n stream port %d : Connected.\n",portStream);
@@ -134,7 +260,7 @@ main(int argc, char *argv[]) {
       fdControl = socketOpen(sname,portControl);
       portControl = OpenedSocket;
       if (NotifyPortnumber) {
-	oxWritePortFile(0,portControl,portfile);
+        oxWritePortFile(0,portControl,portfile);
       }
       fdControl = socketAccept(fdControl);
       fprintf(stderr,"\n control port %d : Connected.\n",portControl);
@@ -143,36 +269,108 @@ main(int argc, char *argv[]) {
       fdStream = socketOpen(sname,portStream);
       portStream = OpenedSocket;
       if (NotifyPortnumber) {
-	oxWritePortFile(1,portStream,portfile);
+        oxWritePortFile(1,portStream,portfile);
       }
       fdStream = socketAccept(fdStream);
       fprintf(stderr,"\n stream port %d : Connected.\n",portStream);
     }
   }
 
+  if (passControl != NULL) {
+	char *s; int mm;
+	fprintf(stderr,"passControl\n");
+	mm = strlen(passControl);
+	s = (char *) malloc(mm+1);
+    if (s == NULL) {fprintf(stderr,"No more memory.\n"); exit(1); }
+	if (read(fdControl,s,mm+1) < 0) {
+	  fprintf(stderr,"Read error to read passControl\n"); sleep(5); exit(1);
+	}
+    s[mm] = 0;
+	if (strcmp(s,passControl) != 0) {
+	  fprintf(stderr,"s=%s and passControl=%s  do not match.\n",s,passControl); sleep(5); exit(1);
+	}
+	free(s);
+  }
+  if (passData != NULL) {
+	char *s; int mm;
+	mm = strlen(passData);
+	fprintf(stderr,"passData\n");
+	s = (char *) malloc(mm+1);
+    if (s == NULL) {fprintf(stderr,"No more memory.\n"); exit(1); }
+	if (read(fdStream,s,mm+1) < 0) {
+	  fprintf(stderr,"Read error to read passData\n");
+	  errorToStartEngine();
+	}
+	if (strcmp(s,passData) != 0) {
+	  fprintf(stderr,"s=%s and passData=%s  do not match.\n",s,passData); 
+	  errorToStartEngine();
+	}
+    free(s);
+  }
 
+  if ((fdControl < 0) ||  (fdStream < 0)) {
+    fprintf(stderr,"Waiting for 10 seconds to show an error.\n");
+    sleep(10);
+  }
 
+
+  result = 0;
   if (portControl != -1) {
     MyServerPid = fork();
     if (MyServerPid > 0 ) parentServerMain(fdControl,fdStream);
-    else childServerMain(fdControl,fdStream);
+    else result = childServerMain(fdControl,fdStream);
   }else{
-    childServerMain(fdControl,fdStream);
+    result = childServerMain(fdControl,fdStream);
   }
+  if (result < 0) errorToStartEngine();
+}
 
+static void errorToStartEngine(void) {
+  fprintf(stderr,"Failed to start the engine. Childing process is terminating.\n");
+  /* You have to tell to the control server that there is no engine.
+     And, the control server must tell the client that there is no
+     engine.
+     This part has not yet been implemented.
+     If you implement this, set Do_not_use_control_stream_to_tell_no_server to
+     zero.
+  */
+  sleep(10);
+  exit(-1);
 }
 
-oxmainUsage() {
+void oxmainUsage() {
   fprintf(stderr,"Usage: \n");
   fprintf(stderr,"  ox [-ox serverprogram -host name -data portnum -control portnum -monitor]\n");
-  fprintf(stderr," [-insecure -portfile fname -reverse -pass xxxyyyzzz]");
+  fprintf(stderr," [-insecure -portfile fname -reverse -passControl xxxyyyzzz -passData pppqqqrrr]");
+  fprintf(stderr," [-finish]  [-wait seconds] [-authEncoding [file]]");
+  fprintf(stderr," [-ignoreSIGINT [1|0]]");
   fprintf(stderr,"\n");
-  fprintf(stderr,"Example 1: dc1% ./ox -ox ox_sm1 -host dc1.math.kobe-u.ac.jp -insecure -control 1300 -data 1200\n");
+  fprintf(stderr,"-reverse: ox server connects to the client.\n");
+  fprintf(stderr,"          The client must give a one time password to ox server to connect to the client with -pass* option.\n");
+  fprintf(stderr,"          The one time password can be seen by ps command, so you must not use this one time password system on an untrustful host.\n");
+  fprintf(stderr,"          The one time password should be sent by a safe communication line like ssh and the ox server should be started by ssh. Do not use rsh\n");
+  fprintf(stderr,"          (The option -pass is obsolete.)\n");
+  fprintf(stderr,"          If -reverse is not given, the client connect to the ox server\n");
+  fprintf(stderr,"          See OpenXM/src/SSkan/Doc/ox.sm1, /sm1connectr\n");
+  fprintf(stderr,"-insecure : \n");
+  fprintf(stderr,"          If you access to the server from a localhost, you do not need one time password. However, if you access outside of the localhost, a one time password is required. To turn off this restriction, -insecure option is used.\n");
+  fprintf(stderr,"\n");
+  fprintf(stderr,"If ox fails to find the serverprogram, it tries to look for it in /usr/local/OpenXM/bin and $OpenXM_HOME/bin.\n");
+  fprintf(stderr,"\n");
+  fprintf(stderr,"Example 1:\n");
+  fprintf(stderr,"(Start the ox server): dc1%% ox -ox ~/OpenXM/bin/ox_sm1 -host dc1.math.kobe-u.ac.jp -insecure -control 1200 -data 1300\n");
+  fprintf(stderr,"(client):  sm1\n ");
+  fprintf(stderr,"           (ox.sm1) run ; \n");
   fprintf(stderr,"           sm1>[(dc1.math.kobe-u.ac.jp) 1300 1200] oxconnect /ox.ccc set\n");
+  fprintf(stderr,"Example 2:\n");
+  fprintf(stderr,"(Start the ox server): dc1%% ox -ox ~/OpenXM/bin/ox_sm1\n");
+  fprintf(stderr,"(client): dc1%% sm1\n ");
+  fprintf(stderr,"           (ox.sm1) run ; \n");
+  fprintf(stderr,"           sm1>[(localhost) 1300 1200] oxconnect /ox.ccc set\n");
   fprintf(stderr,"\n");
 }
 
-parentServerMain(int fdControl, int fdStream) {
+void parentServerMain(int fdControl, int fdStream) {
   int id;
   int mtag;
   int size;
@@ -180,15 +378,31 @@ parentServerMain(int fdControl, int fdStream) {
   int r;
   int message = 1;
   int controlByteOrder;
+  extern int OxTerminateMode;
+  extern void myServerExit(int m);
 
-  extern void myServerExit();
-
-  controlByteOrder = oxTellMyByteOrder(fdControl);
+  int sigchld[]={SIGCHLD,-1};
+  unblock_signal(sigchld);
+  if (OxTerminateMode) {
+	/*
+	  OxTerminateMode cannot be used if you run ox by xterm -exec ox ...
+	 */
+	if (fork()) {
+	  close(fdControl); close(fdStream);
+	  /* Parent */
+	  exit(0);  /*Tell the caller that launching is successfully finished.*/
+	}
+  }
+  
+  controlByteOrder = oxTellMyByteOrder(fdControl,fdControl);
   /* Set the network byte order. */
   fprintf(stderr,"controlByteOrder=%x\n",controlByteOrder);
 
-
-  signal(SIGINT,myServerExit);
+  /*  int sigint[]={SIGINT,-1};
+  set_signal(sigint[0],myServerExit);
+  unblock_signal(sigint);
+  */
+  mysignal(SIGINT,SIG_IGN);
   while(1) {
     mtag = oxfdGetOXheader(fdControl,&SerialCurrentControl);
     /* get the message_tag */
@@ -198,61 +412,161 @@ parentServerMain(int fdControl, int fdStream) {
     switch( id ) {
     case SM_control_kill:
       if (message) printf("[control] control_kill\n");
-      oxSendResultOfControl(fdControl);
+      /* oxSendResultOfControl(fdControl); */
       sleep(2);
-      myServerExit();
+      myServerExit(0);
       break;
     case SM_control_reset_connection:
       if (message) printf("[control] control_reset_connection.\n");
       if (message) printf("Sending the SIGUSR1 signal to %d:  ",MyServerPid);
       r=kill(MyServerPid,SIGUSR1);
       if (message) printf("Result = %d\n",r);
+      if (Ox_protocol_1999) {
+	if (message) printf("[obsolete protocol of ox-rfc-100 in 1999] Sending the result packet to the control channel. r=%d\n",r);
+        oxSendResultOfControlInt32(fdControl,0); 
+      }
       fflush(NULL);
-      oxSendResultOfControlInt32(fdControl,0);
+      /*      oxSendResultOfControlInt32(fdControl,0); */
       break;
     default:
       fprintf(stderr,"[control] Unknown control message.\n");
       fprintf(stderr,"Shutdown the server.");
-      myServerExit();
+      myServerExit(0);
       break;
     }
   }
 }
 
-void myServerExit() {
+void myServerExit(int m) {
   printf("Sending the kill signal to the child.\n");
   kill(MyServerPid,SIGKILL);
-  exit();
+  exit(0);
 }
 
-childServerMain(int fdControl, int fdStream) {
+int childServerMain(int fdControl, int fdStream) {
   int i;
+  struct rlimit res;
   close(fdControl);   /* close(0); dup(fdStream); */
   dup2(fdStream,3);
   dup2(fdStream,4);  
-/*close(0);
-  #include <sys/param.h>
-  for (i=5; i<NOFILE; i++) close(i); 
-*/
+  /*close(0);
+    #include <sys/param.h>
+    for (i=5; i<NOFILE; i++) close(i); 
+  */
+  if (!Do_not_use_control_stream_to_tell_no_server) {
+    if (findOxServer(ServerName) < 0) {
+      return(-1);
+    }
+  }
+  fprintf(stderr,"childServerMain: Starting the server %s\n",ServerName); fflush(NULL);
+
+  /*  
+  {
+	int i;
+	i=0;
+	while (environ[i] != NULL) {
+	  fprintf(stderr,"%s ",environ[i++]);
+	}
+	fprintf(stderr,"\n");
+  }
+  */
+  /* bug: xterm of potato does not seem to pass the LD_LIBRARY_PATH.
+      So, the new gc does not work.
+     it is an workaround for OpenXM */
+  if (getenv("LD_LIBRARY_PATH") == (char *)NULL) {
+	char *s,*o;
+    fprintf(stderr,"Hmm... LD_LIBRARY_PATH does not seem to be set.\n");
+    o = getenv("OpenXM_HOME");
+	if (o == NULL) {
+	  fprintf(stderr,"Giving up to set the LD_LIBRARY_PATH variable.\n");
+	}else{
+	  s = (char *)malloc(strlen(o)+64);
+	  sprintf(s,"LD_LIBRARY_PATH=%s/lib",o);
+	  putenv(s);
+	}
+  }
+  getrlimit(RLIMIT_STACK,&res);
+  if (res.rlim_cur < 65536000) {
+    fprintf(stderr,"RLIMIT_STACK is increased to 65Mbytes by setrlimit.\n");
+	res.rlim_cur = 65536000;
+	setrlimit(RLIMIT_STACK,&res);
+  }
+
+  //  int sigint[]={SIGINT,-1};
+  //  if (IgnoreSIGINT) { block_signal(sigint); fprintf(stderr,"SIGING\n");}
+  if (IgnoreSIGINT) { mysignal(SIGINT,SIG_IGN); fprintf(stderr,"SIG_ING\n");}
+
   if (PacketMonitor) {
-    if (execl(ServerName,ServerName,"-monitor",NULL)) {
+    if (execle(ServerName,ServerName,"-monitor",NULL,environ)) {
       fprintf(stderr,"%s cannot be executed with -monitor.\n",ServerName);
+      fflush(NULL);
+      return(-1);
     }
   }else {
-    if (execl(ServerName,ServerName,NULL)) {
+    if (execle(ServerName,ServerName,NULL,environ)) {
       fprintf(stderr,"%s cannot be executed.\n",ServerName);
+      fflush(NULL);
+      return(-1);
     }
   }
+  /* never reached. */
 }
 
 
 /* These are dummy.  It is defined in stackmachine.c */
-unlockCtrlCForOx() { ; }
-restoreLockCtrlCForOx() { ; }
+void unlockCtrlCForOx() { ; }
+void restoreLockCtrlCForOx() { ; }
 
+static int findOxServer(char *server) {
+  char *p;
+  char *p2;
+  if (strlen(server) == 0) return(-1);
+  /* fd = open(server,O_RDONLY); */
+  if (access(server,X_OK&R_OK) == 0) {
+    fprintf(stderr,"Starting OX server : %s\n",server);
+    return(0);
+  }
+  if (server[0] == '/') {
+    couldNotFind(server);
+    return(-1);
+  }
+  fprintf(stderr,"The server %s was not found. Trying to find it under OpenXM/bin\n",server);
+  p = getenv("OpenXM_HOME");
+  if (p == NULL) {
+    p = "/usr/local/OpenXM";
+  }
+  p2 = (char *) malloc(sizeof(char)*(strlen(p)+strlen("/bin/")+3+strlen(server)));
+  if (p2 == NULL) { fprintf(stderr,"No more memory.\n"); exit(10); }
+  strcpy(p2,p); strcat(p2,"/bin/"); strcat(p2,server);
+  /* fd = open(p2,O_RDONLY); */
+  if (access(p2,X_OK&R_OK) == 0) {
+    fprintf(stderr,"Starting OX server : %s\n",p2);
+    if (strlen(p2) < SERVERNAME_SIZE) strcpy(server,p2);
+    else {
+      couldNotFind("Too long ox server name.");
+      return(-1);
+    }
+    return(0);
+  }
+  couldNotFind(p2);
+  return(-1);
+}
 
+static void couldNotFind(char *s) {
+  fprintf(stderr,"OX server %s could not be found.\n",s);
+}
 
 
-
+static void mywait(int m) {
+  int status;
+  int pid;
+  int i,j;
+  /* signal(SIGCHLD,SIG_IGN); */
+  pid = wait(&status);
+  fprintf(stderr,"Control: child process %d is exiting.\n",pid);
+  fprintf(stderr,"Control: Shutting down the control server.\n");
+  sleep(2);
+  exit(0);
+}