CODEWITHSUNDEEP
c++clinuxpipe
Abruzzo Forte e Gentile
Abruzzo Forte e Gentile

Reputation: 14869

reading standard output via read function instead of fread

I would like my program to read the standard output produced by another application. I am aware that I can use popen to do that and use fread to read that output.

Do you know whether is possible to use read (and possibly open)? I am working in LINUX with C/C++

Upvotes: 0

Views: 339

Answers (1)

Ingo Leonhardt
Ingo Leonhardt

Reputation: 9904

You can get a file descriptor for read() by calling int fd = fileno(fp) for the FILE *fp you have got from popen(). But be aware that you must not mix calling read() and fread()!

EDIT

If you want to avoid popen(), you have to use pipe(), fork(), exec..() and dup2() like it's done here

Upvotes: 2

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