Hello everyone: Does the boa webserver ("pre-buit version" provided by Microtronix) support CGI ? In the directory:"/c/altera/kits/nios2/examples/software/linux/apps/boa/util", there are some files such as *.pl or cgi-test.cgi .....etc, Is that means those files are examples for writing perl CGI? http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/blink.gif

Yes it does support cgi. I got it to work. You have to create /home/httpd/cgi-bin directory in your fs project and place your programs there. -Thomas

hello Thomas: thanks for your reply, so,what CGI language does the Microtronix linux distribution support? perl? and ,is that means we don&#39;t have to install any additional application to support CGI? then finally,could you show us a simple CGI program as an exmple? your information helps a lot, thanks.

Ok, I was going to post this in the web server thread, but i will post it here instead. CGI program can be written in any language because CGI is a method of passing data not a specific implementation. The easiest way is to create a C program using the Microtronix linux application wizard. For example this is a program that controls the LEDs on the cyclone dev board: # include <stdio.h># include <string.h># include <stdlib.h> // replace the path with proper path to nios2_system.h# include <C:\altera\kits\nios2\bin\eclipse\workspace\linux1\build\include\nios2_system.h> void main(void) { np_pio *pio = na_led_pio; pio->np_piodirection = 3; pio->np_piodata = 0; int content_length=0; char *cgiinput ; unsigned char mydata=0; pio->np_piodata = 0x00; printf("Content-type: text/html\n"); printf("\n"); if ( !(content_length = atoi(getenv("CONTENT_LENGTH"))) ) { printf("No Content-Length was sent with the POST request.\n") ; exit(1) ; } if ( !(cgiinput=(char *)malloc(content_length+1)) ) { printf("Could not allocate memory for cgiinput.\n") ; exit(1) ; } if (!fread(cgiinput, content_length, 1, stdin)) { printf("Could not read CGI input from STDIN.\n") ; exit(1) ; } cgiinput[content_length]=&#39;\0&#39; ; if (strstr(cgiinput, "LED1")) mydata |= 1; if (strstr(cgiinput, "LED2")) mydata |= 2; if (strstr(cgiinput, "LED3")) mydata |= 4; if (strstr(cgiinput, "LED4")) mydata |= 8; if (strstr(cgiinput, "LED5")) mydata |= 16; if (strstr(cgiinput, "LED6")) mydata |= 32; if (strstr(cgiinput, "LED7")) mydata |= 64; if (strstr(cgiinput, "LED8")) mydata |= 128; pio->np_piodata = mydata; // printf("cgi input was: \n%s\n", cgiinput); printf("<html><head><title>CGI\n"); printf("Test</title><body>\n"); printf("<h1>LEDs set</h1>"); printf("\n"); printf("</body></html>\n"); exit(0); } ----------- Please note that this program does not do proper parsing of CGI input parameters, it only checks if certain parameters were included. That works fine in this simple case. To place this program in the cgi-bin directory, compile it first, then copy/paste to /home/httpd/cgi-bin and rename to "<filename>.cgi.exe" so that when the filesystem is built, it ends up with the proper ".cgi" extension. Then you need a html file in order to make this CGI program useful. For example (Note: replace the IP with the dev boards IP, and cgitest2.cgi with the filename of your CGI program): <FORM METHOD="POST" ACTION="http://192.168.1.122/cgi-bin/cgitest2.cgi"> 1<INPUT TYPE="checkbox" NAME="LED1" VALUE="led1" CHECKED> 2<INPUT TYPE="checkbox" NAME="LED2" VALUE="led2"> 3<INPUT TYPE="checkbox" NAME="LED3" VALUE="led3"> 4<INPUT TYPE="checkbox" NAME="LED4" VALUE="led4"> 5<INPUT TYPE="checkbox" NAME="LED5" VALUE="led5"> 6<INPUT TYPE="checkbox" NAME="LED6" VALUE="led6"> 7<INPUT TYPE="checkbox" NAME="LED7" VALUE="led7"> 8<INPUT TYPE="checkbox" NAME="LED8" VALUE="led8"> <INPUT TYPE="submit" value="OK"> </FORM> ------------------- You can execute this html file from your PC&#39;s desktop or host it on the dev board under /home/httpd. I hope this helps, let me know if more explanation is needed. -Thomas

http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/laugh.gif it works! Thank you very much,Thomas.

i do it according to guide but HTTP 400 appear why?

CGI? | Altera Community

24 Replies

Altera_Forum
Honored Contributor
19 years ago
TO_BE_DONE
Altera_Forum
Honored Contributor
19 years ago
<div class='quotetop'>QUOTE </div>
--- Quote Start ---
Quick question, when i add i2c, do i need to manually add

nod /dev/i2c-0 666 0 0 89 0 to romfs_list file ?[/b]
--- Quote End ---

Yes, if you want to access i2c through /dev interface (like lm_sensor) instead of chip driver.
Altera_Forum
Honored Contributor
19 years ago
--- Quote Start ---
originally posted by hippo@Nov 16 2006, 09:06 AM
<div class='quotetop'>quote
--- quote end ---

--- quote start ---
quick question, when i add i2c, do i need to manually add

nod /dev/i2c-0 666 0 0 89 0 to romfs_list file ?
--- Quote End ---

Yes, if you want to access i2c through /dev interface (like lm_sensor) instead of chip driver.
<div align='right'><{post_snapback}> (index.php?act=findpost&pid=19468)</div>
[/b]
--- Quote End ---

It's running now. Thanks. Somehow when i use a new patch (r17), it did something to sof file. And it resulted not seeing the 2 new devices. I reloaded the sof file, and it is now working.

Many thanks.
Altera_Forum
Honored Contributor
19 years ago
--- Quote Start ---
originally posted by rfitz25@Nov 10 2006, 07:41 PM
i'm trying to build/run the simpler sdhnain version.
i get these error messages when i try to "-- build make target"?

make -k all
no emulation specific options.
makefile:25: *** missing separator. stop.

what are emulation options? from sopc builder ?
i'll try some more.

these are lines 23, 24, 25 in the makefile?

.phony: clean
clean:
-rm -f *.[oad] *.elf *.gdb *.bin *.exe

what seperator is needed and where?
<div align='right'><{post_snapback}> (index.php?act=findpost&pid=19376)
--- quote end ---

you must to place a space before -rm -f

like that

clean:
-rm -rf

look in an other makefile.

i had the same problem, and now it's ok. http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/smile.gif

bye
--- Quote End ---

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CGI?

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