Date: Mon, 26 Feb 2001 12:56:17 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: dillon@earth.backplane.com (Matt Dillon) Cc: ken@kdm.org (Kenneth D. Merry), arch@FreeBSD.ORG Subject: Re: sbufs in userland Message-ID: <200102261256.FAA16315@usr05.primenet.com> In-Reply-To: <200102260749.f1Q7nGZ30306@earth.backplane.com> from "Matt Dillon" at Feb 25, 2001 11:49:16 PM
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> char *
> safe_replacef(char **pptr, const char *ctl, ...)
> {
> va_list va;
> char *optr = *pptr;
>
> if (ctl) {
> va_start(va, ctl);
> if (vasprintf(pptr, ctl, va) < 0)
> fatalmem();
> va_end(va);
> }
> safe_free(&optr);
> return(*pptr);
> }
So basically, why is there an "if (ctl)"? Is it so you can pass
a NULL as the second argument to turn it into a "safe_free" call?
That's weird...
Terry Lambert
terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.
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