cant include libipq.h header file

rohit83.ken · 04-03-2008, 07:40 AM

I have a C file of the following .When I execute this in Fedora 7 version 2.6.21-1.3194.fc7 and
arch =i686 I get following errors

[root@kwi-11156f06184 Desktop]# cc test.c
test.c:3:20: error: libipq.h: No such file or directory
test.c: In function ‘main’:
test.c:12: error: ‘PF_INET’ undeclared (first use in this function)
test.c:12: error: (Each undeclared identifier is reported only once
test.c:12: error: for each function it appears in.)
test.c:12: warning: assignment makes pointer from integer without a cast

[root@kwi-11156f06184 Desktop]# cc test.c -libipq.h
test.c:3:20: error: libipq.h: No such file or directory
test.c: In function ‘main’:
test.c:12: error: ‘PF_INET’ undeclared (first use in this function)
test.c:12: error: (Each undeclared identifier is reported only once
test.c:12: error: for each function it appears in.)
test.c:12: warning: assignment makes pointer from integer without a cast

[root@kwi-11156f06184 Desktop]# cc test.c -libipq
test.c:3:20: error: libipq.h: No such file or directory
test.c: In function ‘main’:
test.c:12: error: ‘PF_INET’ undeclared (first use in this function)
test.c:12: error: (Each undeclared identifier is reported only once
test.c:12: error: for each function it appears in.)
test.c:12: warning: assignment makes pointer from integer without a cast

[root@kwi-11156f06184 Desktop]# cc -libipq test.c
test.c:3:20: error: libipq.h: No such file or directory
test.c: In function ‘main’:
test.c:12: error: ‘PF_INET’ undeclared (first use in this function)
test.c:12: error: (Each undeclared identifier is reported only once
test.c:12: error: for each function it appears in.)
test.c:12: warning: assignment makes pointer from integer without a cast

Code:

/* c file called test.c*/

#include <linux/netfilter.h>
#include <libipq.h>
#include <stdio.h>

int main()
{
  int retVal = 0;
  char buf[1000];
  struct ipq_handle* userHandle;

  userHandle = ipq_create_handle(0, PF_INET);
  if(userHandle == NULL)
  {
    printf("ipq_create_handle returned error\n");
    return -1;
  }

  retVal = ipq_read(userHandle, buf, 1000, 0);

  return 0;
}

my problem is how shall I include all these header files , so that my program works

any hints and suggestions
prethanks to helper

**Salem** · 04-03-2008, 09:05 AM

Well the first thing you should do is stop writing and compiling programs (and presumably browsing the web) as root. Sooner or later, you'll be wondering where your install disks are because you've either trashed the system or someones hacked it.

As for running the compiler, it would be something like
cc -I/path/to/header test.c
The -I parameter specifies a location where header files may be found, in addition to the usual places.

Or it may simply be that you haven't installed that library.

rohit83.ken · 04-04-2008, 12:51 AM

how shall i install that library
shall I use yum or add/remove software in fedora 7

matsp · 04-04-2008, 02:41 AM

Quote:

Originally Posted by rohit83.ken

how shall i install that library
shall I use yum or add/remove software in fedora 7

yum can probably do it. I'm old fashioned, so I would just use rpm to install from the CD/DVD.

--
Mats

04-03-2008, 07:40 AM	#1
rohit83.ken Registered User Join Date: Oct 2007 Posts: 6	cant include libipq.h header file I have a C file of the following .When I execute this in Fedora 7 version 2.6.21-1.3194.fc7 and arch =i686 I get following errors [root@kwi-11156f06184 Desktop]# cc test.c test.c:3:20: error: libipq.h: No such file or directory test.c: In function ‘main’: test.c:12: error: ‘PF_INET’ undeclared (first use in this function) test.c:12: error: (Each undeclared identifier is reported only once test.c:12: error: for each function it appears in.) test.c:12: warning: assignment makes pointer from integer without a cast [root@kwi-11156f06184 Desktop]# cc test.c -libipq.h test.c:3:20: error: libipq.h: No such file or directory test.c: In function ‘main’: test.c:12: error: ‘PF_INET’ undeclared (first use in this function) test.c:12: error: (Each undeclared identifier is reported only once test.c:12: error: for each function it appears in.) test.c:12: warning: assignment makes pointer from integer without a cast [root@kwi-11156f06184 Desktop]# cc test.c -libipq test.c:3:20: error: libipq.h: No such file or directory test.c: In function ‘main’: test.c:12: error: ‘PF_INET’ undeclared (first use in this function) test.c:12: error: (Each undeclared identifier is reported only once test.c:12: error: for each function it appears in.) test.c:12: warning: assignment makes pointer from integer without a cast [root@kwi-11156f06184 Desktop]# cc -libipq test.c test.c:3:20: error: libipq.h: No such file or directory test.c: In function ‘main’: test.c:12: error: ‘PF_INET’ undeclared (first use in this function) test.c:12: error: (Each undeclared identifier is reported only once test.c:12: error: for each function it appears in.) test.c:12: warning: assignment makes pointer from integer without a cast Code: /* c file called test.c/ #include <linux/netfilter.h> #include <libipq.h> #include <stdio.h> int main() { int retVal = 0; char buf[1000]; struct ipq_handle userHandle; userHandle = ipq_create_handle(0, PF_INET); if(userHandle == NULL) { printf("ipq_create_handle returned error\n"); return -1; } retVal = ipq_read(userHandle, buf, 1000, 0); return 0; } my problem is how shall I include all these header files , so that my program works any hints and suggestions prethanks to helper
rohit83.ken is offline

04-03-2008, 09:05 AM	#2
Salem and the hat of Jobseeking Join Date: Aug 2001 Location: The edge of the known universe Posts: 21,710	Well the first thing you should do is stop writing and compiling programs (and presumably browsing the web) as root. Sooner or later, you'll be wondering where your install disks are because you've either trashed the system or someones hacked it. As for running the compiler, it would be something like cc -I/path/to/header test.c The -I parameter specifies a location where header files may be found, in addition to the usual places. Or it may simply be that you haven't installed that library. __________________ If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
Salem is offline

04-04-2008, 12:51 AM	#3
rohit83.ken Registered User Join Date: Oct 2007 Posts: 6	how shall i install that library how shall i install that library shall I use yum or add/remove software in fedora 7
rohit83.ken is offline

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