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Message-ID: <20190402144041.GL23599@brightrain.aerifal.cx>
Date: Tue, 2 Apr 2019 10:40:41 -0400
From: Rich Felker <dalias@...c.org>
To: musl@...ts.openwall.com
Subject: Re: [PATCH 1/2] use __strchrnul instead of strchr and strlen
On Tue, Apr 02, 2019 at 05:57:33AM -0400, Frediano Ziglio wrote:
> ping
Thanks for the ping. Applying!
Rich
> > The result is the same but takes less code.
> > Note that __execvpe calls getenv which calls __strchrnul so even
> > using static output the size of the executable won't grow.
> > ---
> > src/process/execvp.c | 3 +--
> > 1 file changed, 1 insertion(+), 2 deletions(-)
> >
> > diff --git a/src/process/execvp.c b/src/process/execvp.c
> > index 1fdf036f..ef3b9dd5 100644
> > --- a/src/process/execvp.c
> > +++ b/src/process/execvp.c
> > @@ -28,8 +28,7 @@ int __execvpe(const char *file, char *const argv[], char
> > *const envp[])
> >
> > for(p=path; ; p=z) {
> > char b[l+k+1];
> > - z = strchr(p, ':');
> > - if (!z) z = p+strlen(p);
> > + z = __strchrnul(p, ':');
> > if (z-p >= l) {
> > if (!*z++) break;
> > continue;
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