🚀 go-pugleaf

I found out that I have to define __EXTENSIONS_  (or something like
_POSIX_...) before any include headers. The key point (in my undrestanding)
is that SunOS distinguishes between ANSI C and POSIX. popen and pclose
happen to not belong ANSI C standard library. And thus the warning.

Regards,
Kevin

Zhenbin (Kevin) Xu wrote in message
<6ejp15$5ja@bgtnsc03.worldnet.att.net>...
>>Sun OS 5.5
>>g++  version unknown, probably very old (1993???)
>>
>>First of all, my program complied without any warning in my Linux box.
>>However, not in this Sun box...
>>
>>I got the following warnings:
>>    msgqueue.cpp: In function `int DoServer()':
>>    msgqueue.cpp:190: warning: implicit declaration of function `int
>>popen(...)'
>>    msgqueue.cpp:190: warning: initialization to `FILE *' from `int' lacks
>a
>>cast
>>    msgqueue.cpp:192: warning: implicit declaration of function `int
>>pclose(...)'
>>
>>Here is the context:
>>  if( strlen(msgpackage.mtext) > 0 )
>>  {
>>    #ifdef _MYDEBUG
>>       cout << "Server: rcv: " << msgpackage.mtext << endl;
>>    #endif
>>       char cmdLine[MSGBUFSIZE+24];
>>       sprintf(cmdLine,"%s%s",cmdPing,msgpackage.mtext);
>>+     FILE* fp=popen(cmdLine,"r");
>>+     int iStatus=0;
>>+     switch( pclose(fp) ) // pclose returns the termination status of
>>cmdLine
>>       {
>>       case 0:
>>        iStatus = HOST_ALIVE;
>>        break;
>>       default:
>>        iStatus = HOST_DEAD;
>>       }
>>       sprintf( msgpackage.mtext +
>>strlen(msgpackage.mtext),"\t%s",STR_HOST_STATUS[iStatus] );
>>       msgpackage.mtype = SERVER_DATA;
>>       msgsnd( msg_id, (MSGStruct)&msgpackage, MSGBUFSIZE, 0);
>>      }
>>
>>It seems very clear that the "popen" and "pclose" are not declared in the
>>header file. However, they suppose to be declared in stdio.h and here is
my
>>includes:
>>    #include <sys/types.h>
>>    #include <sys/ipc.h>
>>    #include <sys/msg.h>
>>    #include <limits.h>
>>    #include <unistd.h>
>>    #include <syslog.h>
>>    #include <errno.h>
>>    #include <string.h>
>>    #include <stdio.h>
>>    #include <stdlib.h>
>>    #include <fstream.h>
>>    #include <iostream.h>
>>
>>I suspect that this is because that I primarily use C++ functions and
there
>>are some preprocess symbols need to be declared/cleared.  If it is the
>case,
>>how can I use popen in my C++ program in SUN OS with a probably obsoleted
>>g++ version???
>>
>>Once again, there is no any syntax and logical error when I run this
>program
>>on my Linux machine. However, I need it to be able to run on that stupid
>Sun
>>box as well - and worst of all, I am primary a Windows programmer.
>>
>>Any information will be very much appreciated! Please also reply to my
>>account at kevin@blueshoe.com .
>>
>>Thanks in advance,
>>Kevin
>>
>>
>>
>>
>>
>
>

You could try using pfstream.  I note that you are using a mixture of
conventional and stream I/O.
-- 
Jim Cobban   |  jcobban@nortel.ca                   |  Phone: (613) 763-8013
Nortel (MCS) |                                      |  FAX:   (613) 763-5199
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