GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  FILTER_CREATE_FD (3)

NAME

filter_create_fd - Create a sub process and return the requested pipes

CONTENTS

Synopsis
Arguments
Description

SYNOPSIS

   

#include <util/filter.h>

   

NEOERR *filter_create_fd(const char *cmd, int *fdin, int *fdout, int *fderr,
pid_t *pid);

ARGUMENTS

cmd -> the sub command to execute. Will be executed with
/bin/sh -c
fdin -> pointer to return the stdin pipe, or NULL if you don’t
want the stdin pipe
fdout -> pointer to return the stdout pipe, or NULL if you don’t
want the stdout pipe
fderr -> pointer to return the stderr pipe, or NULL if you don’t
want the stderr pipe

DESCRIPTION

filter_create_fd and filter_create_fp are what popen

been: a mechanism to create sub processes and have pipes to all their input/output. The concept was taken from mutt, though python has something similar with popen3/popen4. You control which pipes the function returns by the fdin/fdout/fderr arguments. A NULL value means "don’t create a pipe", a pointer to an int will cause the pipes to be created and the value of the file descriptor stored in the int. You will have to close(2) the file descriptors yourself.

RETURN VALUE

fdin -> the stdin file descriptor of the sub process
fdout -> the stdout file descriptor of the sub process
fderr -> the stderr file descriptor of the sub process
pid -> the pid of the sub process

SEE ALSO

filter_wait(3), filter_create_fp(3), filter_create_fd
Search for    or go to Top of page |  Section 3 |  Main Index


ClearSilver FILTER_CREATE_FD (3) 12 July 2007

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.