How can change udp lenght?
Hello.
I have FreeBsd 4.7 and i want to change udp datagramm lenght.
Where it can be? What i must do? I can rebuild my core but it is not good for me.
Thanks! (4 Replies)
Hi All,
I have a pipe separated flat file.But there is often some problem with the records.So is it possible to convert the '|' separated file into a fixed length file by means of some script.
The file has 11 columns which means 10 pipes.Your help is appreciated.
i'm using Sun OS Version... (2 Replies)
I am facing a strange error while creating posix threads:
Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output.
Snippet 1
This works:
--------------
int *threadids;
threadids = (int *) malloc (num_threads * sizeof(int));
... (4 Replies)
I'm not familiar with find.
If i use find in a certain directory i want it to show based on hierarchy.
find . type d
fol1
fol1/subfol1
fol1/subfol1/subfol1
fol2
fol2/subfol2
i want it to show like this
fol1/subfol1/subfol1
fol1/subfol1
fol1
fol2/subfol2
fol2
do i need to use... (5 Replies)
Hi
I want to know the maximum length of user name under NIS? I tried googling but it didnt help :(. If there is any command to find out this please let me know. I know on unix user name should be 8 characters long but just i want to know if i can have 9 letter user under mapped under NIS. (1 Reply)
Using the KSH, write a shell script called display_by_length, which takes an absolute pathname to a directory and displays all ordinary files in the directory ordered by their length; for each file listed, display the name of the file and its length - nothing else. Extend this script to take an... (1 Reply)
I made menu script for users so they can run other script without going in shell just from menu.
But i must control their input.
These are criteria:
Input must have 4 signs
First two signs are always lower case letters
Input shall not have some special signs just letters and numbers
... (1 Reply)
actually i am trying to find the lenght of fixed width file record reading from teradata db but its not working can u guys help me out?
code which i wrote---
colmn_lngth=`cat $RPT_FILE | awk -F~ '{print $1}'`
rm $RPT_FILE
while read line
do
result=`echo $line | wc -m`
... (4 Replies)
Trying to do some control flow parsing based on the index postion of an array member. Here is the pseudo code I am trying to write in (preferably in pure bash) where possible. I am thinking regex with do the trick, but need a little help.
pesudo code
if == ENDSINFIVEINTS ]]; then
do... (4 Replies)
Discussion started by: briandanielz
4 Replies
LEARN ABOUT SUSE
offsetof
OFFSETOF(3) Linux Programmer's Manual OFFSETOF(3)NAME
offsetof - offset of a structure member
SYNOPSIS
#include <stddef.h>
size_t offsetof(type, member);
DESCRIPTION
The macro offsetof() returns the offset of the field member from the start of the structure type.
This macro is useful because the sizes of the fields that compose a structure can vary across implementations, and compilers may insert
different numbers of padding bytes between fields. Consequently, an element's offset is not necessarily given by the sum of the sizes of
the previous elements.
A compiler error will result if member is not aligned to a byte boundary (i.e., it is a bit field).
RETURN VALUE
offsetof() returns the offset of the given member within the given type, in units of bytes.
CONFORMING TO
C89, C99, POSIX.1-2001.
EXAMPLE
On a Linux/i386 system, when compiled using the default gcc(1) options, the program below produces the following output:
$ ./a.out
offsets: i=0; c=4; d=8 a=16
sizeof(struct s)=16
Program source
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
int
main(void)
{
struct s {
int i;
char c;
double d;
char a[];
};
/* Output is compiler dependent */
printf("offsets: i=%ld; c=%ld; d=%ld a=%ld
",
(long) offsetof(struct s, i),
(long) offsetof(struct s, c),
(long) offsetof(struct s, d),
(long) offsetof(struct s, a));
printf("sizeof(struct s)=%ld
", (long) sizeof(struct s));
exit(EXIT_SUCCESS);
}
COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2008-07-12 OFFSETOF(3)