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Full Discussion: extern for functions
Top Forums Programming extern for functions Post 302119906 by the_learner on Friday 1st of June 2007 01:32:00 PM
Old 06-01-2007
Oh God ! I always thought that if a function in a file file1.c calls another function func2 in file file2.c, then we must include prototype of func2 in file2.h and include it in file1.c

file1.c
Code:
#include<stdio.h>
#include "file2.h"
main()
{
   func2();
}

file2.c
Code:
#include<stdio.h>
func2()
{

}

file2.h
Code:
void func2();

 

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LEARN ABOUT DEBIAN

selinux_default_type_path

selinux_binary_policy_path(3)				     SELinux API Documentation				     selinux_binary_policy_path(3)

NAME

       selinux_path,	 selinux_policy_root,	  selinux_binary_policy_path,	 selinux_failsafe_context_path,    selinux_removable_context_path,
       selinux_default_context_path,  selinux_user_contexts_path,  selinux_file_context_path,  selinux_media_context_path,  selinux_contexts_path,
       selinux_booleans_path - These functions return the paths to the active SELinux policy configuration directories and files.

SYNOPSIS

       #include <selinux/selinux.h>

       extern const char *selinux_path(void);

       extern const char *selinux_policy_root(void);

       extern const char *selinux_binary_policy_path(void);

       extern const char *selinux_failsafe_context_path(void);

       extern const char *selinux_removable_context_path(void);

       extern const char *selinux_default_context_path(void);

       extern const char *selinux_user_contexts_path(void);

       extern const char *selinux_usersconf_path(void);

       extern const char *selinux_x_context_path(void);

       extern const char *selinux_sepgsql_context_path(void);

       extern const char *selinux_file_context_path(void);

       extern const char *selinux_media_context_path(void);

       extern const char *selinux_securetty_types_path(void);

       extern const char *selinux_contexts_path(void);

       extern const char *selinux_booleans_path(void);

DESCRIPTION

       These functions return the paths to the active policy configuration directories and files based on the settings in /etc/selinux/config.

       selinux_path() - top-level SELinux configuration directory

       selinux_policy_root() - top-level policy directory

       selinux_binary_policy_path() - binary policy file loaded into kernel

       selinux_default_type_path - context file mapping roles to default types.

       selinux_failsafe_context_path() - failsafe context for emergency logins

       selinux_removable_context_path() - filesystem context for removable media

       selinux_default_context_path() - system-wide default contexts for user sessions

       selinux_user_contexts_path() - directory containing per-user default contexts

       selinux_usersconf_path() - file containing mapping between Linux Users and SELinux users

       selinux_x_context_path() - file containing configuration for XSELinux extension

       selinux_sepgsql_context_path() - file containing configuration for SE-PostgreSQL

       selinux_netfilter_context_path - default netfilter context

       selinux_file_context_path() - default system file contexts configuration

       selinux_file_context_local_path() - local customization file contexts configuration

       selinux_file_context_homedir_path() - home directory file contexts configuration

       selinux_media_context_path() - file contexts for media device nodes

       selinux_contexts_path() - directory containing all of the context configuration files

       selinux_securetty_types_path() - defines tty types for newrole securettys

       selinux_booleans_path() - initial policy boolean settings

AUTHOR

       This manual page was written by Dan Walsh <dwalsh@redhat.com>.

SEE ALSO

       selinux(8)

dwalsh@redhat.com						 15 November 2004				     selinux_binary_policy_path(3)
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