Programming :: Use Curl And Spawn Multiple Connection At A Time?
Jan 24, 2010
I am using a perl script which uses curl in the background to download files from rapidshare premium,one file at a time. I wanted to know is it possible to use curl and spawn multiple connection at a time,to download the same file in multiple parts?? I don't seem to find an option in curl which does that.
Code: curl "http://site.com/pages/{1,2,3,4,5}.html" > /home/myuser/allpages.html i need to save each page in a separate page by the way i have tried this command Code: curl "http://site.com/pages/{1,2,3,4,5}.html" > /home/myuser/{1,2,3,4,5}.html but it displays error Code: ambiguous redirect is there any way to do that
I've worked out how to get ALSA libasound code working for an application. However I can't workout how to get multiple sounds working at once. I can't seem to find any google examples of mutiple sounds. EG tune plays while pressing buttons makes clicks. I'm using an embedded board so need to use ALSA not an addon e.g. sdlmixer, jack, etc.
my tcl framework give exception - send: spawn id exp1025 not open - while executing command - exp_send "echo $ABC". Though this is very sporadic in nature and frequency of occurrence is very less, but still i need to fix it.
I have following queries
- why does this occur so sporadically?
- how do i fix it?
- what shall i do to avoid such exceptions in future.
Note : The function which runs the exp_send command always spawn a bash whenever it is called.
Is there any curl API to configure only the required protocol. If I have proper openssl installed, the installed curl will have all the protocols (like HTTP, HTTPS, FTP, File etc...) supported by default. Is there any way to allow or disallow only some of the protocol at the runtime. Say I need to support only HTTPS, FILE and I dont want to allow HTTP. Is there any way to do this?
Iam using socket programming in one of my problem. The scenario is like this.
=>one module is working as a socket server(process p1) is able to handle client sockets on that port. =>one module is working as socket client (process p2) is connected to server socket and Tx/Rx data on this socket. This module has some more threads, based on received data from server socket it will connect to http on other thread and get information... =>one more module is working as socket client (process p3) is also connected to server socket and doing some other transactions.
Here my problem is when in presence of p2, p3 http connection taking more time than the expected. If we wont start p3(means only one server-client socket) then http connection is fast enough.
I write a bash script to time some downloads from a server using ftp connection. ( something like: "time ftp 'options' ) I need to count the time for a list of files in a loop and output the result in a file.
I wanted to know how can I set a period of time to a tcp connection to wait for request or respond for tcp block read. which system call or function I can use? Does any body know a very simple quick and easy reference on web for socket programing that has lots of socket programing examples in it?
What is the problem? I receive this message (see in red) when i running this script (below) on bash script file:
error received:
% Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 70 0 70 0 0 321 0 --:--:-- --:--:-- --:--:-- 0 IMAG_DOS.ZIP
I've got an asp page (I can't edit) which I can access with a test user I've setup, however when I try to access to same page via curl, I get the following error: Code: <h1> You are not authorized to view this page </h1>
The URL you attempted to reach has an ISAPI or CGI application installed that verifies user credentials before proceeding. This application cannot verify your credentials. There's lots of other text (doubt it's relevant though).
Here's the one liner I'm using: Code: curl -A "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)" -u myusername:mypassword [URL] I've done some searching but cant find anything which doesn't suggest rewriting the asp...
I am trying to download a non-existent file from a repository by giving the URL, using curl APIs. It is throwing an error message "The requested URL returned error: 404" but the specified file is downloaded with 0 bytes. My code snippet is as follows :
I am having some issues with downloading images to my website from my suppliers!
I have a text file (extracted from product their product lists) which has all of the image URLs!
I have tried to use php using the below script which was started via a cron job, however exec is blocked and my hoster has told me to use curl..... Is there something that can be written in or with curl to do the same thing?
I am trying to resume an aborted download. I have to use the curl_easy_setopt(hnd, CURLOPT_RESUME_FROM_LARGE,(curl_off_t)no. of bytes to be skipped) to set from where to start resuming download. But in run time, how would i put the no. of bytes to be skipped? Its not possible always to see how much is the size of file downloaded already. So is there any way so that prograjm will automatically know from where to start??
I am writing a script that is used to submit a package to testflight from my build system. In order to make the presentation as clear as possible I would like to include some basic HTML in the note section, however, using a < or > causes an error in curl. I have tried different variations of quoting and escaping but have not yet been able to find the solution.
I'm looking for a program that will digitally display the time in three different cities - all showing at once. I don't care if it is a panel applet or stand-alone. I'm using Suse 11.3 and Gnome.
I need to build an https client in 'C' language on linux platfrom and my app is a multithreaded one...in each thread it need to send a seperate https request to the same server..and receive response.... I used openssl library for this, i am able to send request to server. but when i am trying to read the socket (using SSL_Read) it's closing connection(returning 0 with error code 29).
I have a TCL framewrok for my test cases automation. This is been working for last 1 year. But yesterday it exited with exception when a function was called. The exception was given as fork: not enough memory while executing "spawn bash"(procedure "runtrigger" line 36) invoked from within "runtrigger $fnAfter $sid_l $mapver" ("trigger" arm line 6) invoked from within
Since the upgrade from Lenny to Squeeze on my Notebook Toshiba Satellite Pro U200 with Intel Pro/Wireless 3945 ABG I have wireless connection problems.The connection breaks time to time and sometimes cannot connect automaticaly after restart. BTW I didn't change anything on the wireless or network configurations on the notebook and on the wiereless router.
In the right upper corner of your screen,you can see if you have a network connection or not.Most of the time I do not have one according to Networkmanager (?).So I have to enable my wired connection manually.I already tried a lot to change my settings so I would have a network connection at boot,but it doesn't seem to work....Firefox is in Offline modus when I logon..
When I have video running and the video stops, I see that the connection is destroyed in about 5 seconds, which is what I want. If, rather than stopping the video, I pull the plug, I have seen it take 350 and 380 seconds before the connection is destroyed. Why is there such a large difference in the time to destroy a video connection between stopping the video and pulling the plug on it when using net filter connection tracking? How can I shorten the time for the connection to get destroyed when pulling the plug?
i'm trying to write a bash script to upload an image to [URL], but i can't get i working properly. Everytime i try, the html returns me a error saying "Upload is disabled during short maintenance work (ETA 10 minutes). Brb!", while from the browser everything works fine. This is my current command line:
Code: curl -L -b cookie-pix.txt -c newcookie.txt www.pixhost.org/cover-upload -A "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)" -F 0=@/home/admin/Desktop/karm.jpg -F content_type=0 -F press=Upload And this is the html of the form:
I am using Debian linux. I have 100 timers running. If a timer expired which will generate a signal and it was mapped to a same function handler. All the timers are mapped to one function handler. The problem is if the timer expires one at a time, the function handler called at a time. But if the 2 timers expires at a time, the function handler is called one time only instead 2 times. Is it possible to invoke the function handler as many times based on timer expirary happens simultaneoulsy?
I am trying to set time using settimeofday in linux. But it sets local time. i.e works like SetLocalTime in windows. But I want to set system time(like SetSystemTime in windows). I could'nt find no other api in linux. What should i do? I had tried with mktime/gmtime apis