[Asterisk-Users] C Manager Interface Client

[Tressler, Joshua A]

I just had a thought. Is this something that I should post to the
Asterisk-Dev list? I didn't want to cross post, but I'm not sure to
which list I should have originally posted it. 

 

Thanks,



Joshua

 

________________________________

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Tressler,
Joshua A
Sent: Friday, September 30, 2005 11:52 AM
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] C Manager Interface Client

 

List:

 

This is my first manager client that I've written so please bear with
me:

 

I am trying to write a C manager interface client to interface with our
CRM software. I am having an issue while reading the data from the
manager interface.

 

I am writing this in C and I have the following code:

while(1)
{
 bzero(buffer,sizeof(buffer));
 readCode = read(socketHandle,buffer,sizeof(buffer));

 if(readCode < 0)
 {
  printf("ERROR READING FROM SOCKET\n");
  exit(0);
 }

 printf("%s",buffer);
}


This prints out everything just as connecting to the telnet session
would print it out (I do the logging in elsewhere, that isn't the
problem here)


This code will read until * has nothing else for me to read from it then
print it all out and wait for some more stuff.  Since * seems to print
out on 5038 in "blocks" of text read(...) will never cut off in the
middle of a block.

However, on one instance, and this is the only one we can reproduce the
results on, * puts out Event: ****** then stops, Privilege: ********,
then stops and then prints out the rest.  This really screws up my
parsing as i normally parse using a tokenizer on \r\n\r\n and pass each
block off to a parsing method.  I found this problem using the following
code:

while(1)
{
 bzero(buffer,sizeof(buffer));
 readCode = read(socketHandle,buffer,sizeof(buffer));

 if(readCode < 0)
 {
  printf("ERROR READING FROM SOCKET\n");
  exit(0);
 }

 printf("%s\n",buffer);  ////////This is the main difference \n
}

In this case I get output as follows:

...
...
.
.

Event: Hangup

 

Privilege: call,all

 

Channel: SIP/1542200-543f
Uniqueid: 1128041150.26
Cause: 0
Cause-txt: Unknown

...
...
.
.

In this case "Event: Hangup", "Privilege: call, all", and the rest all
get passed off to my parser.  Obviously a problem.


Is * spitting this data out to me in three seperate chunks or is my
socket not blocking correctly?


Any suggestions as to why this would happen?

 

TIA,

 

Joshua

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