Date: Thu, 22 Dec 2011 23:50:53 +0400 From: Gleb Smirnoff <glebius@FreeBSD.org> To: Dag-Erling Sm??rgrav <des@des.no> Cc: svn-src-all@FreeBSD.org, src-committers@FreeBSD.org, svn-src-vendor@FreeBSD.org Subject: Re: svn commit: r228809 - vendor/openpam/dist/lib Message-ID: <20111222195053.GA80057@FreeBSD.org> In-Reply-To: <8639ccs8my.fsf@ds4.des.no> References: <201112221810.pBMIAFlo028054@svn.freebsd.org> <20111222182219.GS80057@FreeBSD.org> <86bor0sbra.fsf@ds4.des.no> <867h1osbgl.fsf@ds4.des.no> <20111222184258.GU80057@FreeBSD.org> <8639ccs8my.fsf@ds4.des.no>
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On Thu, Dec 22, 2011 at 08:34:29PM +0100, Dag-Erling Sm??rgrav wrote:
D> > > /*
D> > > @@ -124,7 +129,8 @@
D> > > dlclose(dlh);
D> > > FREE(module);
D> > > err:
D> > > - openpam_log(PAM_LOG_ERROR, "%m");
D> > > + if (errno != 0)
D> > > + openpam_log(PAM_LOG_ERROR, "%s: %m", path);
D> > > return (NULL);
D> > > }
D> >
D> > I think vpath is better choice here, as explained in previous mail
D>
D> At this point, vpath is either NULL or garbage.
Here is my variant attached.
It is silent on success, printing these on failure:
Dec 22 23:49:39 projcarp1 sshd[3208]: in openpam_dynamic(): /usr/local/lib/pam_ldap.so: No such file or directory
Dec 22 23:49:39 projcarp1 sshd[3208]: in openpam_load_module(): no /usr/local/lib/pam_ldap.so found
--
Totus tuus, Glebius.
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Index: openpam_dynamic.c
===================================================================
--- openpam_dynamic.c (revision 228816)
+++ openpam_dynamic.c (working copy)
@@ -63,12 +63,17 @@
static void *
try_dlopen(const char *modfn)
{
+ void *dlh;
if (openpam_check_path_owner_perms(modfn) != 0)
return (NULL);
- return (dlopen(modfn, RTLD_NOW));
+ if ((dlh = dlopen(modfn, RTLD_NOW)) == NULL) {
+ openpam_log(PAM_LOG_ERROR, "%s: %s", modfn, dlerror());
+ errno = 0;
+ }
+ return (dlh);
}
-
+
/*
* OpenPAM internal
*
@@ -83,7 +88,7 @@
const char *prefix;
char *vpath;
void *dlh;
- int i, serrno;
+ int i;
dlh = NULL;
@@ -100,9 +105,6 @@
*strrchr(vpath, '.') = '\0';
dlh = try_dlopen(vpath);
}
- serrno = errno;
- FREE(vpath);
- errno = serrno;
if (dlh == NULL)
goto err;
if ((module = calloc(1, sizeof *module)) == NULL)
@@ -118,13 +120,16 @@
openpam_log(PAM_LOG_DEBUG, "%s: %s(): %s",
path, pam_sm_func_name[i], dlerror());
}
+ FREE(vpath);
return (module);
buf_err:
if (dlh != NULL)
dlclose(dlh);
FREE(module);
err:
- openpam_log(PAM_LOG_ERROR, "%m");
+ if (errno != 0)
+ openpam_log(PAM_LOG_ERROR, "%s: %m", path);
+ FREE(vpath);
return (NULL);
}
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