Hi,
Suppose I have a command:
I need to send a message from cmd2 to cmd1 when I receive some a certain message from cmd1. How to do this?
I think that I have to know cmd1's PID and then in cmd2 send a message to this PID. How?
Hi,
Program A: uses pipe()
I am able to read the stdout of PROGAM B (stdout got through system() command) into PROGRAM A using:
* child
-> dup2(fd, STDOUT_FILENO);
-> execl("/path/PROGRAM B", "PROGRAM B", NULL);
* parent
-> char line;
-> read(fd, line, 100);
Question:... (2 Replies)
Hi,
i want to write a script that executes a program (exec?) .
this program then requires a filename as input.
how do i give it this input in the script so the program will be complete run and close by the script.
e.g.
exec prog.exe
program then asks for filename
"enter filename:"... (1 Reply)
Hi,
I would like to write a program to receive the GPS data and then send the data via network to other program.
All of the program is not write yet(include host and sender)
All of the server OS is unix or linux
Could you mind to give me some idea to do this?
Thanks so much!
Ken
... (2 Replies)
Hello,
I recently upgraded our server from Solaris 8 to 9. The sendmail is unabled to pipe the email to a perl script. I can send and received email to local and external mail, but the script did not get the email. There is no error in the log and I could not find any thing on the web.
Here... (0 Replies)
Hello guys,
my professor give me 2 days to study and make a program usign pipe, fork in c
i need to do a program
read a arq.txt
the father process read the file and the child print !
like this
#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>
int main (){
... (1 Reply)
Hello guys,
my professor give me 2 days to study and make a program usign pipe, fork in c
i need to do a program
read a arq.txt
the father process read the file and the child print !
2. Relevant commands, code, scripts, algorithms:
like this
Code:
#include <stdio.h>... (1 Reply)
Hi,
I am trying to sftp a large file(appx. 2 GB size) from solaris 10 to a Linux server. While sftping(with no options), connection is terminated after some time with broken pipe error. sftp with option -R1 or -B1500 is successful.
Linux server ssh Version: OpenSSH_3.9p1, OpenSSL 0.9.7a... (3 Replies)
Hi all,
I have a text data file. My aim here is to find line called *FIELD* AV for every record and print lines after that till *FIELD* RF. But here I want first 3 to four lines for very record as well. FIELD AV is some where in between for very record. SO I am not sure how to retrieve lines in... (2 Replies)
For example, I have a file called number.txt.
x y
1 1
2 4
3 9
4 6
5 5
6 6
7 9
8 4
9 1
10 0
...
And I want to print out the value of x and y, if y%4==0 and the next value of y%4==0. Thus, the sample output is:
1 1 *because the previous x before 2 is 1
2 4 *because 4%4 == 0
7 9... (2 Replies)
Hi Guys,
I am getting some strange error in /var/adm/messages in my Solaris 10 box with Veritas Cluster and EMC storage.
bash-3.00$ cat /var/adm/messages | egrep -v "lw8|snmp|sshd|xntpd|kern.info|LOGIN|link|service|started|finished|repeated|SS7 Log-daemon|success"
Dec 18 09:58:35 GAMMa2... (1 Reply)
Discussion started by: vivek.goel.piet
1 Replies
LEARN ABOUT SUSE
wimax_msg_alloc
WIMAX_MSG_ALLOC(9) Linux Networking WIMAX_MSG_ALLOC(9)NAME
wimax_msg_alloc - Create a new skb for sending a message to userspace
SYNOPSIS
struct sk_buff * wimax_msg_alloc(struct wimax_dev * wimax_dev, const char * pipe_name, const void * msg, size_t size, gfp_t gfp_flags);
ARGUMENTS
wimax_dev
WiMAX device descriptor
pipe_name
"named pipe" the message will be sent to
msg
pointer to the message data to send
size
size of the message to send (in bytes), including the header.
gfp_flags
flags for memory allocation.
RETURNS
0 if ok, negative errno code on error
DESCRIPTION
Allocates an skb that will contain the message to send to user space over the messaging pipe and initializes it, copying the payload.
Once this call is done, you can deliver it with wimax_msg_send.
IMPORTANT
Don't use skb_push/skb_pull/skb_reserve on the skb, as wimax_msg_send depends on skb->data being placed at the beginning of the user
message.
Unlike other WiMAX stack calls, this call can be used way early, even before wimax_dev_add is called, as long as the wimax_dev->net_dev
pointer is set to point to a proper net_dev. This is so that drivers can use it early in case they need to send stuff around or communicate
with user space.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 WIMAX_MSG_ALLOC(9)