popening for read and write - High Level Programming

szzz · #1 11-18-2003

How can 'popen()' be used for reading and writing to opening pipe?
If i try 'popen("prog", "rw")'
and then put and get chars - it does
not work.
What is wrong?

Perderabo · #2 11-18-2003

popen can't do rw because it's buffered. You will have to do your own fork()/exec() and fd manipulation.

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
read and write from a file	rinku	Shell Programming and Scripting	2	01-10-2008 10:22 PM
Problem with read & write	EltonSky	High Level Programming	11	08-31-2006 11:35 AM
sed to read and write to very same file	435 Gavea	Shell Programming and Scripting	5	06-29-2006 08:04 PM
How to implement read/write thread	shilpi_gup	High Level Programming	1	10-23-2005 11:35 PM
read, write & STDOUT_FILENO....	M3xican	High Level Programming	2	07-17-2002 01:41 PM

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode