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Date: Mon, 18 Feb 2002 15:08:42 +0100
From: Pavel Tsekov <ptsekov AT syntrex DOT com>
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Reply-To: Pavel Tsekov <cygwin AT cygwin DOT com>
Organization: Syntrex, Inc.
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Message-ID: <261413993.20020218150842@syntrex.com>
To: Jorge Goncalvez <goncal11 AT col DOT bsf DOT alcatel DOT fr>
CC: cygwin AT cygwin DOT com
Subject: Re[2]: Sprintf issue
In-Reply-To: <200202181025.LAA19208@cabs40.col.bsf.alcatel.fr>
References: <200202181025 DOT LAA19208 AT cabs40 DOT col DOT bsf DOT alcatel DOT fr>
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Hello Jorge,

Please, can you check the return value of the system () call ? Also
are you trying to run the compiled program from the cygwin shell or
from the windows command prompt ? Output of cygcheck -r -s -v would
be vuseful too. This is a problem which was brought to the mailing
list some time ago though solution was not found then.

Monday, February 18, 2002, 11:25:09 AM, you wrote:

JG> Hi, i tried to modified a C program running on linux and make it running on 
JG> windows with gcc for cygwin:
JG> like this:
JG>  sprintf(arpbuf, "arp -s %s `echo %s | sed -e s/:/-/g`"
JG>          piaddr (lease -> ip_addr),
JG>          print_hw_addr (lease -> hardware_addr.htype,
JG>                         lease -> hardware_addr.hlen,
JG>                         lease -> hardware_addr.haddr));
JG>  note(arpbuf);
JG>  system(arpbuf);
JG> }

JG> and the original was:

JG>  sprintf(arpbuf, "arp -s %s  %s ",
JG>          piaddr (lease -> ip_addr),
JG>          print_hw_addr (lease -> hardware_addr.htype,
JG>                         lease -> hardware_addr.hlen,
JG>                         lease -> hardware_addr.haddr));
JG>  note(arpbuf);
JG>  system(arpbuf);
JG> }

JG> but my second %s was with the following format XX:XX:XX:XX:XX:XX and i would 
JG> replace it by XX-XX-XX-XX-XX-XX.
JG> I tried sed but it didn't work.Why? it seem not to be interpreted I have :
JG> arp -s 192.40.54.42 `echo 00:80:9f:2e:3f:5e | sed -e s/:/-/g`

JG> Could i do it in pure C?Thanks for your precious help.


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