linux include files

10 More Discussions You Might Find Interesting

1. Programming

Include files

I have an implementation file tomog.cpp that implements a class called Tomog where I need to include its header file which resides in another place. How can I best specify the include file? I would not like to do #include "../../tomso/tomography/tomog.hpp" I wish to do instead ...

2. Programming

[Solved] Cannot execute file that include files

Iam trying to execute a file that include many files but it seems my main copy.c can't read anyone of them ----------------------------------------------------------------------------------------- Copy.c #include <sys/stat.h> #include <fcntl.h> #include "tlpi_hdr.h" #ifndef BUF_SIZE /*...

3. Shell Programming and Scripting

Using Grep Include/Exclude Files

I wrote this korn script and ran into a hole. I can use find to exclude all the hidden directories and to use my include file/exclude files for running a full backup find / -depth -ipath '/home/testuser/.*' -prune -o -print| grep -f include.mydirs | grep -v -f exclude.mydirs but when I...

4. HP-UX

How do I include header files outside of my current directory

I am trying to compile a file called PPFormatageMUT.c in which I have included header file which are at some other location but the point is that while compiling the file, it is throwing error saying that error : no such file or directory source code location:...

5. Shell Programming and Scripting

include file name to extracted files

I've written the script below to merge only .txt files that exist in one directory into one huge .txt file and ignore other files with other extensions. now the result is one huge .txt file with all the contents of other .txt files how can i add a File Name as a comment before each file? ...

6. Solaris

include files

Our admin has upgraded our OS solaris system to 5.11 but no more I can compile any trivial or non-trivial code. I'm trying to compile a trivial c++ program(a Helloworld program) but It gives error indicating that include files do not exist (in this trivial case <stdio.h>), it starts compiling but...

7. Programming

gcc does not include certain .h-files

Hi there! gcc seems not to include available files, see below: What should I do? Look forward to your reply/replies! Thanks Grahamb In the source directory I enter: #gcc -Wall -I/usr/include ./gtkdaq.c > ./out.log 2>&1 Response: In file included from ./gtkdaq.c:3:...

8. Shell Programming and Scripting

include all files under a directory

I want to include all the subnet files under /etc/dhcpd/ to /etc/dhcpd.conf so here is my content of dhcpd.conf ... include "/etc/dhcpd/*"; however, the check-syntax reports syntax error, as they do not recognize the wildcard *, and display that " file /etc/dhcpd/* could not be found. ...

9. Shell Programming and Scripting

how to include external files in tcsh

Hello Simple question about tcsh , i like to make external file that some tcsh script will read from him var=="some value" how can i make the include in tcsh files? Thanks

10. Programming

Include files

Hi, I am new to the unix networking. I have written one client and server for UDP sockets.. I got the following errors while conpilation I have include all include files. Could some one help ...is there any other file to be included.....? will the include files change on different unix...

LEARN ABOUT REDHAT

_sysctl

SYSCTL(2)						     Linux Programmer's Manual							 SYSCTL(2)

NAME

       sysctl - read/write system parameters

SYNOPSIS

       #include <unistd.h>

       #include <linux/unistd.h>

       #include <linux/sysctl.h>

       _syscall1(int, _sysctl, struct __sysctl_args *, args);

       int _sysctl(struct __sysctl_args *args);

DESCRIPTION

       The  _sysctl  call  reads and/or writes kernel parameters. For example, the hostname, or the maximum number of open files. The argument has
       the form

       struct __sysctl_args {
	       int *name;	 /* integer vector describing variable */
	       int nlen;	 /* length of this vector */
	       void *oldval;	 /* 0 or address where to store old value */
	       size_t *oldlenp;  /* available room for old value,
				    overwritten by actual size of old value */
	       void *newval;	 /* 0 or address of new value */
	       size_t newlen;	 /* size of new value */
       };

       This call does a search in a tree structure, possibly resembling a directory tree under /proc/sys, and if the requested item is found calls
       some appropriate routine to read or modify the value.

EXAMPLE

       #include <linux/unistd.h>
       #include <linux/types.h>
       #include <linux/sysctl.h>

       _syscall1(int, _sysctl, struct __sysctl_args *, args);
       int sysctl(int *name, int nlen, void *oldval, size_t *oldlenp,
		  void *newval, size_t newlen)
       {
	       struct __sysctl_args args={name,nlen,oldval,oldlenp,newval,newlen};
	       return _sysctl(&args);
       }

       #define SIZE(x) sizeof(x)/sizeof(x[0])
       #define OSNAMESZ 100

       char osname[OSNAMESZ];
       int osnamelth;
       int name[] = { CTL_KERN, KERN_OSTYPE };

       main(){
	       osnamelth = SIZE(osname);
	       if (sysctl(name, SIZE(name), osname, &osnamelth, 0, 0))
		       perror("sysctl");
	       else
		       printf("This machine is running %*s
", osnamelth, osname);
	       return 0;
       }

RETURN VALUE

       Upon successful completion, _sysctl returns 0. Otherwise, a value of -1 is returned and errno is set to indicate the error.

ERRORS

       ENOTDIR
	      name was not found.

       EPERM  No  search  permission for one of the encountered `directories', or no read permission where oldval was nonzero, or no write permis-
	      sion where newval was nonzero.

       EFAULT The invocation asked for the previous value by setting oldval non-NULL, but allowed zero room in oldlenp.

CONFORMING TO

       This call is Linux-specific, and should not be used in programs intended to be portable.  A sysctl call has been  present  in  Linux  since
       version	1.3.57.  It  originated in 4.4BSD. Only Linux has the /proc/sys mirror, and the object naming schemes differ between Linux and BSD
       4.4, but the declaration of the sysctl(2) function is the same in both.

BUGS

       The object names vary between kernel versions.  THIS MAKES THIS SYSTEM CALL  WORTHLESS  FOR  APPLICATIONS.   Use  the  /proc/sys  interface
       instead.
       Not all available objects are properly documented.
       It is not yet possible to change operating system by writing to /proc/sys/kernel/ostype.

SEE ALSO

       proc(5)

Linux 1.3.85							    1996-04-11								 SYSCTL(2)

UNIX for Dummies Questions & Answers