OpenWRT is a Linux-based firmware program for embedded devices such as residential gateways and routers. It is very modular and feature-rich, but not all chipsets are supported.
Questions tagged [openwrt]
966 questions
-2
votes
1 answer
segfault : how to know in which line code or function that caused this segfault
when execute my program in openwrt device, I get this message :
prog[876]: segfault at 3000747a0 ip 08052d3f sp bfca6a0c error 4 prog[8048000+f000]
my purpose is to know in which line code or function that caused this segfault
it is possible to…
Anis_Stack
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votes
2 answers
How to modify the uptime command on shell?
When I type in uptime in terminal it gives me something like this
16:44:17 up 7:50, load average: 0.31, 0.47, 0.54
I want to make it to be something like this
Uptime: 7h 50m
Load average: 0.31, 0.47, 0.54
and save it to uptime.txt
How can I do…
Squidward
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votes
3 answers
How to move and rename a file with random characters in shell?
I have this file:
/root/.aria2/aria2.txt
and I want to move it to:
/var/spool/sms/outgoing/aria2_XXXXX
Note that XXXXX are random characters.
How do I do that using only the facilities exposed by the openwrt (a GNU/Linux distribution for…
Squidward
- 131
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- 14
-3
votes
2 answers
get MAC address from IP address in LAN network with router installed Openwrt
I need to detect MAC address of devices connecting to my router (running Openwrt). The idea is when a client connects to my router wirelessly, I can get its IP address (my router runs a simple C webserver). I want to get the MAC address of the…
Trung Tran
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votes
3 answers
How to generate random numbers under OpenWRT?
With a "normal" (i mean "full") linux distro, it works just fine:
sleep $(echo "$[ ($RANDOM % 9 ) ]")
ok, it waits for about 0-9 sec
but under OpenWRT [not using bash, rather "ash"]:
$ sleep $(echo "$[ ($RANDOM % 9 ) ]") sleep: invalid number…
LanceBaynes
- 1,393
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votes
2 answers
catch Ctrl+C in C program
I use the following code to catch Ctrl+C in my C program
Code
void sig_handler(int signo)
{
if (signo == SIGINT)
exit(EXIT_SUCCESS);
}
void main ()
{
......
if(signal(SIGINT, sig_handler)== SIG_ERR)
{
…
Anis_Stack
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