getting users' tty # into a C program

[Marco Zagha]

In article 52746 at yale-celray.yale.UUCP> spolsky-joel at CS.YALE.EDU (Joel Spolsky) writes:

> failing that try fd=popen("tty"); fscanf(fd,"%s",ttyname); close(fd)

popen returns a FILE pointer.  To close this file pointer use pclose(),
not close(). I think this is what should be done (as you said, 
failing ttyname()):

FILE *f;
f=popen("/usr/bin/tty","r"); fscanf(f,"%s",ttyname); pclose(f)

== Marco (marcoz at cs.cmu.edu)



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