djm@dmntor.UUCP (David McKellar) (02/08/91)
Quick description: I know all about pipe() and popen() but I want a fpipe(). AND I can't figure out how to do it!!! More detailed: pipe() returns those int file descriptors so I can't use fprintf(). (sprintf() followed by write() is clumbsy!) popen() returns type FILE so I can use fprintf() but it calls sh so an extra process is used. What I want is an fpipe() that does exactly the same as pipe but returns type FILE. Possible ? Please e-mail me as well as posting. -- Dave McKellar UUCP: djm@dmntor.UUCP UUCP bang: ...!uunet!jtsv16!geac!dmntor!djm BITNET: djm%dmntor.UUCP@UWOCC1 (I think)
fox@rudolf.nscl.msu.edu (Ron Fox) (02/08/91)
-- In article <1991Feb7.200302.4945@dmntor.UUCP>, djm@dmntor.UUCP (David McKellar) writes: >Quick description: > > I know all about pipe() and popen() but I want a fpipe(). > AND I can't figure out how to do it!!! > You're going to feel a bit foolish... look at the routine fdopen() (3s) It opens a stream (FILE * type) given as input a file descriptor (what pipe() returns). Ron Ron Fox | FOX@MSUNSCL.BITNET | Where the name NSCL | FOX@RUDOLF.NSCL.MSU.EDU | goes on before Michigan State University | MSUHEP::RUDOLF::FOX | the quality East Lansing, MI 48824-1321 | | goes in. USA
rbj@uunet.UU.NET (Root Boy Jim) (02/09/91)
In <1991Feb7.200302.4945@dmntor.UUCP> djm@dmntor.UUCP (David McKellar) writes: > I know all about pipe() and popen() but I want a fpipe(). Take the FD's you get from pipe or popen and use fdopen on them. -- Root Boy Jim Cottrell <rbj@uunet.uu.net> I got a head full of ideas They're driving me insane
gwyn@smoke.brl.mil (Doug Gwyn) (02/09/91)
In article <1991Feb7.200302.4945@dmntor.UUCP> djm@dmntor.UUCP (David McKellar) writes: > What I want is an fpipe() that does exactly the same as pipe > but returns type FILE. Possible ? Any time you can get a file descriptor and want a FILE, use fdopen(). This question should have been posted to comp.unix.questions.
allbery@NCoast.ORG (Brandon S. Allbery KB8JRR) (02/12/91)
As quoted from <1991Feb7.200302.4945@dmntor.UUCP> by djm@dmntor.UUCP (David McKellar): +--------------- | pipe() returns those int file descriptors so I can't | use fprintf(). (sprintf() followed by write() is clumbsy!) +--------------- Try "man 3 fdopen" (Unix) or "man S fdopen" (SCO's abominations). ++Brandon -- Me: Brandon S. Allbery VHF/UHF: KB8JRR on 220, 2m, 440 Internet: allbery@NCoast.ORG Packet: KB8JRR @ WA8BXN America OnLine: KB8JRR AMPR: KB8JRR.AmPR.ORG [44.70.4.88] uunet!usenet.ins.cwru.edu!ncoast!allbery Delphi: ALLBERY