You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
1.8 KiB
75 lines
1.8 KiB
/*
|
|
* Copyright (C) 2012-2013 ProFUSION embedded systems
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <dlfcn.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/utsname.h>
|
|
|
|
#include "testsuite.h"
|
|
|
|
TS_EXPORT int uname(struct utsname *u)
|
|
{
|
|
static void *nextlib = NULL;
|
|
static int (*nextlib_uname)(struct utsname *u);
|
|
const char *release;
|
|
int err;
|
|
size_t sz;
|
|
|
|
if (nextlib == NULL) {
|
|
#ifdef RTLD_NEXT
|
|
nextlib = RTLD_NEXT;
|
|
#else
|
|
nextlib = dlopen("libc.so.6", RTLD_LAZY);
|
|
#endif
|
|
nextlib_uname = dlsym(nextlib, "uname");
|
|
}
|
|
|
|
err = nextlib_uname(u);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (!environ)
|
|
/*
|
|
* probably called from within glibc before main(); unsafe
|
|
* to call getenv()
|
|
*/
|
|
return 0;
|
|
|
|
release = getenv(S_TC_UNAME_R);
|
|
if (release == NULL) {
|
|
fprintf(stderr, "TRAP uname(): missing export %s?\n",
|
|
S_TC_UNAME_R);
|
|
return 0;
|
|
}
|
|
|
|
sz = strlen(release) + 1;
|
|
if (sz > sizeof(u->release)) {
|
|
fprintf(stderr, "uname(): sizeof release (%s) "
|
|
"is greater than available space: %zu",
|
|
release, sizeof(u->release));
|
|
errno = -EFAULT;
|
|
return -1;
|
|
}
|
|
|
|
memcpy(u->release, release, sz);
|
|
return 0;
|
|
}
|