===================================================================
RCS file: /home/cvs/OpenXM/src/kan96xx/plugin/mytcpio.c,v
retrieving revision 1.2
retrieving revision 1.14
diff -u -p -r1.2 -r1.14
--- OpenXM/src/kan96xx/plugin/mytcpio.c	1999/10/30 02:22:16	1.2
+++ OpenXM/src/kan96xx/plugin/mytcpio.c	2004/02/28 13:39:42	1.14
@@ -1,4 +1,4 @@
-/*  $OpenXM$ */
+/*  $OpenXM: OpenXM/src/kan96xx/plugin/mytcpio.c,v 1.13 2004/02/25 23:14:35 takayama Exp $ */
 #include <stdio.h>
 #include <sys/types.h>
 #include <sys/socket.h>
@@ -6,6 +6,7 @@
 #include <netinet/in.h>
 #include <netdb.h>
 #include <setjmp.h>
+#include <errno.h>
 /* -lnsl -lsocket /usr/ucblib/libucb.a */
 #include "ox_kan.h"
 /* 
@@ -15,15 +16,21 @@
 #if defined(sun)
 int MyEnv_oxmisc[2000];
 #else
+#if defined(__CYGWIN__)
+sigjmp_buf MyEnv_oxmisc; /* may cause a trouble in Solaris. */
+#else
 jmp_buf MyEnv_oxmisc; /* may cause a trouble in Solaris. */
 #endif
+#endif
 
 #define READBUFSIZE 10000
+#define MAX_LISTEN_QUEUE 3
 static void errorMsg1s(char *s) {
   fprintf(stderr,"%s\n",s);
 }
 
-FILE *TcpioError = stdout;
+#define SET_TCPIOERROR  { if (TcpioError == NULL) TcpioError = stdout; }
+FILE *TcpioError = NULL;
 int OpenedSocket = 0;
 extern int Quiet;
 
@@ -32,12 +39,11 @@ socketOpen(char *serverName,int portNumber) {
   static struct sockaddr_in me;
   static int s_waiting;
   static int on;
-  extern int errno;
   int tt;
 
-
-  fprintf(TcpioError,"Hello from open. serverName is %s and portnumber is %d\n",
-	  serverName,portNumber);
+  SET_TCPIOERROR;
+  if (!Quiet) fprintf(TcpioError,"Hello from open. serverName is %s and portnumber is %d\n",
+          serverName,portNumber);
   if ((myhost = gethostbyname(serverName)) == NULL) {
     errorMsg1s("Bad server name.");
     return(-1);
@@ -46,7 +52,7 @@ socketOpen(char *serverName,int portNumber) {
   me.sin_family = AF_INET;
   me.sin_port = htons(portNumber);
   bcopy(myhost->h_addr,
-	&me.sin_addr,myhost->h_length);
+        &me.sin_addr,myhost->h_length);
 
   if ((s_waiting = socket(AF_INET,SOCK_STREAM,0)) < 0) {
     errorMsg1s("Socket allocation is failed.");
@@ -68,11 +74,11 @@ socketOpen(char *serverName,int portNumber) {
     return(-1);
   }
 
-  if (listen(s_waiting,1) < 0) {
+  if (listen(s_waiting,MAX_LISTEN_QUEUE) < 0) {
     errorMsg1s("Listen failed");
     return(-1);
   }
-  fprintf(TcpioError,"Done the initialization. port =%d\n",ntohs(me.sin_port));
+  if (!Quiet) fprintf(TcpioError,"Done the initialization. port =%d\n",ntohs(me.sin_port));
   OpenedSocket = ntohs(me.sin_port);
   return(s_waiting);
 }
@@ -81,13 +87,18 @@ socketOpen(char *serverName,int portNumber) {
 socketAccept(int snum) {
   int s, news;
     
+  SET_TCPIOERROR;
   s = snum;
-  fprintf(TcpioError,"Trying to accept... "); fflush(TcpioError);
+  if (!Quiet) fprintf(TcpioError,"Trying to accept... "); fflush(TcpioError);
   if ((news = accept(s,NULL,NULL)) < 0) {
-    errorMsg1s("Error in accept.");
-    return(-1);
+    errorMsg1s("Error in accept. Retrying (socketAccept).");
+    /* Code added for strange behavior on cygwin. */
+    if ((news = accept(s,NULL,NULL)) < 0) {
+      errorMsg1s("Error in accept. Retry failed.");
+      return (-1);
+    }
   }
-  fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);
+  if (!Quiet) fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);
   if (close(s) < 0) {
     errorMsg1s("Error in closing the old socket.");
     return(-1);
@@ -100,33 +111,38 @@ socketAcceptLocal(int snum) {
   struct sockaddr peer;
   int len;
   int i;
-    
+
+  SET_TCPIOERROR;
   s = snum;
-  fprintf(TcpioError,"Trying to accept from localhost... "); fflush(TcpioError);
+  if (!Quiet) fprintf(TcpioError,"Trying to accept from localhost... "); fflush(TcpioError);
   len = sizeof(struct sockaddr);
   if ((news = accept(s,&peer,&len)) < 0) {
-    errorMsg1s("Error in accept.");
-    return(-1);
+    errorMsg1s("Error in accept. Retrying");
+    /* Code added for strange behavior on cygwin. */
+   if ((news = accept(s,&peer,&len)) < 0) {
+      errorMsg1s("Error in accept. Retry failed.");
+      return (-1);
+   }
   }
 
   len = sizeof(struct sockaddr);
   getpeername(news,&peer,&len);
-  printf("len= %d\n",len);
+  if (!Quiet) printf("len= %d\n",len);
   for (i=0; i<len; i++) {
-    printf(" %x ",peer.sa_data[i]);
+    if (!Quiet) printf(" %x ",peer.sa_data[i]);
   }
   printf("\n");
   if (peer.sa_data[2] == 0x7f && peer.sa_data[3] == 0 &&
       peer.sa_data[4] == 0    && peer.sa_data[5] == 1) {
-    fprintf(stderr,"Authentification: localhost is allowed to be accepted.\n");
+    if (!Quiet) fprintf(stderr,"Authentication: localhost is allowed to be accepted.\n");
   }else{
-    errorMsg1s("Authentification: The connection is not from the localhost.");
+    errorMsg1s("Authentication: The connection is not from the localhost.");
     close(s);
     fprintf(stderr,"The connection is refused.");
     return(-1);
   }
 
-  fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);
+  if (!Quiet) fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);
   if (close(s) < 0) {
     errorMsg1s("Error in closing the old socket.");
     return(-1);
@@ -134,11 +150,51 @@ socketAcceptLocal(int snum) {
   return(news);
 }
 
+/* It does not close the socket for listening. */
+socketAcceptLocal2(int snum) {
+  int s, news;
+  struct sockaddr peer;
+  int len;
+  int i;
+
+  SET_TCPIOERROR;
+  s = snum;
+  if (!Quiet) fprintf(TcpioError,"Trying to accept from localhost... "); fflush(TcpioError);
+  len = sizeof(struct sockaddr);
+  if ((news = accept(s,&peer,&len)) < 0) {
+    errorMsg1s("Error in accept. Retrying (socketAcceptLocal2).");
+    /* Code added for strange behavior on cygwin. */
+    if ((news = accept(s,&peer,&len)) < 0) {
+      errorMsg1s("Error in accept. Retry failed.");
+      return (-1);
+    }
+  }
+
+  len = sizeof(struct sockaddr);
+  getpeername(news,&peer,&len);
+  if (!Quiet) printf("len= %d\n",len);
+  for (i=0; i<len; i++) {
+    if (!Quiet) printf(" %x ",peer.sa_data[i]);
+  }
+  printf("\n");
+  if (peer.sa_data[2] == 0x7f && peer.sa_data[3] == 0 &&
+      peer.sa_data[4] == 0    && peer.sa_data[5] == 1) {
+    if (!Quiet) fprintf(stderr,"Authentication: localhost is allowed to be accepted.\n");
+  }else{
+    errorMsg1s("Authentication: The connection is not from the localhost.");
+    fprintf(stderr,"The connection is refused.");
+    return(-1);
+  }
+
+  if (!Quiet) fprintf(TcpioError,"Accepted.\n"); fflush(TcpioError);
+  return(news);
+}
+
 int oxSocketSelect0(int fd,int t) {
   fd_set readfds;
   struct timeval timeout;
   int debug = 0;
-  extern int errno;
+  SET_TCPIOERROR;
   FD_ZERO(&readfds);
   FD_SET(fd,&readfds);
   timeout.tv_sec = 0;
@@ -169,8 +225,8 @@ oxSocketMultiSelect(int sid[],int size,int t,int resul
   fd_set readfds;
   struct timeval timeout;
   int isdata = 0;
-  extern errno;
 
+  SET_TCPIOERROR;
   FD_ZERO(&readfds);
   timeout.tv_sec = 0;
   timeout.tv_usec = (long)t;
@@ -220,6 +276,7 @@ socketConnect(char *serverName,int portNumber) {
   int socketid;
   int on;
 
+  SET_TCPIOERROR;
   if ((servhost = gethostbyname(serverName)) == NULL) {
     errorMsg1s("bad server name.\n");
     return(-1);
@@ -228,7 +285,7 @@ socketConnect(char *serverName,int portNumber) {
   server.sin_family = AF_INET;
   server.sin_port = htons(portNumber);
   bcopy(servhost->h_addr,
-	(char *)&server.sin_addr,servhost->h_length);
+        (char *)&server.sin_addr,servhost->h_length);
 
   if ((socketid = socket(AF_INET,SOCK_STREAM,0)) <0) {
     errorMsg1s("socket allocation is failed.\n");
@@ -250,7 +307,10 @@ socketConnectWithPass(char *servername,int port,char *
 {
   int fd;
   int m;
+  SET_TCPIOERROR;
   fd = socketConnect(servername,port);
+  if ((pass == NULL) && (fd >= 0)) return fd;
+  if ((pass == NULL) && (fd < 0)) return -1;
   if (fd >= 0) {
     m = write(fd,pass,strlen(pass)+1);
     if (m != strlen(pass)+1) {