My greeting to all subscribers of this mail list.

I meet a Curl and libcurl problem on the ARM Linux platform. It is a
mobile device on the S3C2410 board, manufactured in China.
Nor Curl, nor applications, developed on libcurl could not receive reply
on this platform.
I was ready to believe that that there was a network or setting problem
in this Linux installation, but then I saw that the telnet and ping were
successfully interacting with the servers over Internet.
Moreover, I had discovered that Curl (and the simple applications
developed on libcurl also) can receive response by the local installed
HTTP server (Busybox's httpd) in the same machine.
I had tried to force curl use GET 1.0 requests and use some different
Curl's options, but there was no any success.

Below is a result of CURL with option "v" (-v). The target server is a
google.com

[root@(none) /]# /mnt/usb/curl/bin/curl 209.85.148.103 -v
* About to connect() to 209.85.148.103 port 80 (#0)
* Trying 209.85.148.103... connected
> GET / HTTP/1.1
> User-Agent: curl/7.22.0 (arm-unknown-none) libcurl/7.22.0
> Host: 209.85.148.103
> Accept: */*
>

Next is a result of debug application from the Curl website (expamples).
The server IP is
[root@(none) /]# /mnt/usb/ko/debugvg
== Info: About to connect() to 176.9.19.36 port 80 (#0)
== Info: Trying 176.9.xx.xx... connected
== Info: Connected to 176.9.xx.xx (176.9.19.36) port 80 (#0)
=> Send header, 0000000059 bytes (0x0000003b)
0000: GET /index.php HTTP/1.0
0019: Host: 176.9.xx.xx
002c: Accept: */*
0039:

In the both cases the applications were not stopped by timeout.
The "Ctrl + c" is using to close the applications.
  
######################################################################
- operating system's name and version number
Linux (none) 2.6.17.7 V07100421102D#59 PREEMPT Fri Apr 23 13:23:17 CST
2010 armv4tl unknown

- version of curl

curl 7.22.0 (arm-unknown-none)
libcurl/7.22.0
Protocols: dict file ftp gopher http imap pop3 rtsp smtp telnet
tftp
Features: Largefile

- URL and protocol
google.com, HTTP
######################################################################

Did anyone meet such a problem in the practice?
Any help (advise or recommendation) will be so appreciated.
I am ready to provide any additional information.

Thank you in advance.

Sincerely
Artak Hovsepian
W2B - Web to Business
http://www.w2bpm.com
http://www.w2b.ru
artak_at_w2b.ru
tondrak_at_mail.ru
 

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Received on 2011-11-06