Messages in this thread | | | Date | Tue, 11 Jul 2006 09:48:35 +0200 (MEST) | From | Jan Engelhardt <> | Subject | Re: [OT] 'volatile' in userspace |
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> > What's wrong with _exit(exec() == -1 ? 0 : errno); > and picking up the status with wait(2) ? > The exec'd application may return regular error codes, which would interfere. IIRC /usr/sbin/useradd has different exit codes depending on what failed (providing some option, failure to create account, failure to create home dir, etc.). Now if you exit(errno) instead, you have an overlap. And your code is somewhat wrong. Given that exec() would stand for execve(someprogram_and_args_here), if it returned -1 you would return 0, indicating success. Can't be. And if exec() does not return -1, which it never should, you return errno, which never reaches anyone.
Jan Engelhardt -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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