[CentOS] socket: write vs send

Tue Apr 6 19:48:22 UTC 2010
Michael D. Berger <m_d_berger_1900 at yahoo.com>

On Tue, 06 Apr 2010 14:37:27 -0500, Les Mikesell wrote:

> On 4/6/2010 2:16 PM, Michael D. Berger wrote:
>> On CentOS 5.4,
>> Linux 2.6.18-164.6.1.el5 #1 SMP Tue Nov 3 16:18:27 EST 2009
>>     i686 i686 i386 GNU/Linux
>> In man 2 send I find:
>>    The  send()  call  may  be  used only when the socket is in a
>>    connected state (so that the intended recipient is known).  The 
>>    only  difference between  send()  and write() is the presence of
>>    flags.  With zero flags parameter,    send()    is    equivalent    
>>    to     write().
>> In some complex server software, if the client disconnects:
>>      send: delivers errno == ECONNRESET
>> but
>>      write: crashes the server process.
>> So it is not really equivalent.  Any thoughts on this?
> Are you sure it isn't the normal signal associated with a write when the
> other end closes first that is crashing the process?

No, I.m not sure.  I found that send also sometimes crashes it.
Sorry for the misleading comment.