10 More Discussions You Might Find Interesting
1. Programming
I saw a header (.h) file with mixture of "regular" function declarations and other extern function declarations. As I was told all function declarations are implicitly external and the extern on functions declarations is superfluous. Here my focus is on function declaration, not variable yet.
int... (2 Replies)
Discussion started by: yifangt
2 Replies
2. Programming
In the header file data.h i got:
const char ack_msg = "ack: received your msg\n";
In the code file server.c i got:
extern const char ack_msg;
And else it is only used in a function call:
user$ grep ack_msg *c *h
server.c:extern const char ack_msg;
server.c: n = write(clientsfd,... (5 Replies)
Discussion started by: tornow
5 Replies
3. Ubuntu
Hi,
I am new to linux stuff. I want to use linux iptables to configure rule so that all my incoming traffic with protocol "tcp" is forwarded to the "FORWARD CHAIN". The traffic i am dealing with has destination addresss of my machine but i want to block it from coming to input chain and somehow... (0 Replies)
Discussion started by: arsipk
0 Replies
4. Programming
Why this is happening when both of them compiled together and run?
I am getting segmentation fault SIGSEGV.
File1.c:
int arr;
File2.c:
extern int *arr;
int main() {
arr = 100;
} (3 Replies)
Discussion started by: royalibrahim
3 Replies
5. Linux
Hello there Unix & Linux Guru's and Gifted ones,
Can anyone help me configure fetchmail on my redhat 9.0
This sounds to be silly but really I'm new to linux.
I really need step by step installation and configuration on our company's required Redhat 9.0 (shrike) OS.
Thank you and God... (2 Replies)
Discussion started by: struggled_boy
2 Replies
6. UNIX for Dummies Questions & Answers
Hi there,
I receive job applications sent by a website daemon. The email subject contains the job offer description. The problem is that gmail tends to concatenate emails with the same subject and I don't really want all applications in the same email. Thus the from field contains the candidate... (0 Replies)
Discussion started by: chebarbudo
0 Replies
7. Linux
Hi there, I'm having a bit of a strange problem which I would appreciate some help with.
The Problem:
I have two external hard drives, but I'm borrowing one off my parents to copy data too (one of mine, which is identical to theirs - WD MyBook 300g - is on its way out).
Fedora 9 recognizes... (3 Replies)
Discussion started by: lasthidingplace
3 Replies
8. Programming
file1.c
int a1;
int main()
{
a1 = 2;
printf("\na1 = %d\n", a1);
next();
printf("\na1 = %d\n", a1);
next1();
printf("\na1 = %d\n", a1);
}
file2.c
#include <stdio.h>
int b1 = 0;
void next(void) (1 Reply)
Discussion started by: Tanvirk
1 Replies
9. Programming
Hi,
Please let me know if the extern keyword is necessary for using functions which is defined and declared in another file and and used in a different file where both these files are linked together.
thanks (8 Replies)
Discussion started by: naan
8 Replies
10. UNIX for Dummies Questions & Answers
Hi peeps,
We are having around 60 users.
The time set to retrieve the mail is 300 sec.
But it's taking around 1 hour to deliver mails.
I am using debian sarge 3.1.
any clues?
And how it will affect if I decrease the time?
My machine has got 1 p4 3.0 GHZ processor and 1 GB ram.
The home... (2 Replies)
Discussion started by: squid04
2 Replies
forward(4) Kernel Interfaces Manual forward(4)
NAME
forward - forward mail
SYNOPSIS
/var/adm/forward/username $HOME/.forward
DESCRIPTION
The .forward file allows a user to forward messages to another host, or to invoke programs (such as vacation(1)) to process their mail. It
is formatted as a series of comma-separated addresses in the form: addr_1, addr_2, ... Alternatively, each address can be on a separate
line.
The newer sendmail.v8 program also allows the use of comments (lines that begin with a ``#'') and blank lines.
As with the aliases(4) file, mail messages can be forwarded to another host or given to programs for further processing. The following is
an example of the vacation program. Assuming that the user's name is myra, create a .forward file and add the following line: myra,
"|/usr/bin/vacation myra"
The previous example forwards mail to myra (the backslash prevents an accidental aliasing loop), and also sends a copy of the message to
the vacation program.
For security reasons, the file must be owned by the user or by root and it should be writable only by the file owner. In addition, the
file must be readable by the owner (myra) or root.
On traditional systems, only the $HOME/.forward file is checked. The sendmail.v8 program allows the use of the system-wide forwarding
directory /var/adm/forward. By default, this directory is checked for a forward file prior to examining the users $HOME directory.
FILES
System-wide forwarding file. The per-user forwarding file.
RESTRICTIONS
The sendmail command can hang trying to read the user's $HOME/.forward file. If the user's home directory is NFS-mounted and temporarily
unavailable, sendmail will stall until the directory becomes available again. The use of non-NFS mounted directories for the forwarding of
files is recommended.
The use of /var/adm/forward is supported only by sendmail.v8.
The actual path for /var/adm/forward is configurable in the sendmail.cf file.
Incorrect file permissions/ownership are quietly ignored.
It is easy to create an accidental loop, for example, on host_a myra@host_b and on host_b myra@host_a
RELATED INFORMATION
Commands: aliases(4), sendmail.cf(4), sendmail(8) delim off
forward(4)