Re: popen/pclose problem in Linux 2.2.x with vfork/glibc 2.1

Brandon S. Allbery KF8NH (allbery@kf8nh.apk.net)
Sat, 27 Mar 1999 21:17:22 -0500

In message <19990327180106.A22107@dancer.ca.sandia.gov>, Pete Wyckoff writes:
+-----
| pid = vfork();
| if (pid < 0) return -1;
| if (pid == 0) {
| if (dup2(p[1], 1) < 0)
| exit(127);
| close(p[0]);
| close(p[1]);
+--->8

Ahem. It's *vfork*, you can't do e.g. fd manipulations. (Does there exist a
"true vfork" where this would work? My memory of the original says "no,
forget it".)

(And shouldn't the exit()s in the child be _exit()s instead?)

-- 
brandon s. allbery	[os/2][linux][solaris][japh]	 allbery@kf8nh.apk.net
system administrator	     [WAY too many hats]	   allbery@ece.cmu.edu
carnegie mellon / electrical and computer engineering			 KF8NH
     We are Linux. Resistance is an indication that you missed the point.


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