Re^2: I need some help with open2

This is just an example code. This is part of a bigger project. I just wanted to make things a little more simple so I just took out the problem area and posted it here. When i run this code it does not work with any file greater then 16K, I don't know why. I think it may have to do something with buffers but I tried using syswrite and sysread but it doesn't help.

Comment on Re^2: I need some help with open2

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Re^3: I need some help with open2 by Joost (Canon) on Dec 22, 2007 at 01:04 UTC
So what are you printing to the sox process in the real program? I may be wrong, but it looks to me you're dumping unexpected data to sox that it just doesn't understand and craps out. See post above about removing the print line. "What should it profit a man, if he should win a flame war, yet lose his cool?"	[reply]
Re^3: I need some help with open2 by ikegami (Patriarch) on Dec 22, 2007 at 05:50 UTC
If sox is sending you data and you're not reading it, the pipe will fill up and `sox` will block trying to print to the pipe. One bug: You never call `waitpid` to cleanup the zombie child process. Another bug: You pass user-provided text the shell without (usefully) validating it and without escaping it. `"sox -t $type - -s -r 8000 -w -t wav - 2>/dev/null"` should be `"sox -t \Q$type\E - -s -r 8000 -w -t wav - 2>/dev/null"` You should probably flush your pipe after writing to it (or turn on autoflushing on it). Update: I had the `sox` and the parent program mixed up. Fixed.	[reply] [d/l] [select]