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dea2dfee9b
It has changed in the past, and these days, anyone can get a copy of the LGPL via the web rather than by post. Like 657a122 (Remove FSF mailing address) in libabc by Josh Tripplet, but let the FSF website in which the license can be found.
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/*
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* Copyright (C) 2012-2013 ProFUSION embedded systems
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <dlfcn.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/utsname.h>
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#include "testsuite.h"
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TS_EXPORT int uname(struct utsname *u)
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{
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static void *nextlib = NULL;
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static int (*nextlib_uname)(struct utsname *u);
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const char *release;
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int err;
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size_t sz;
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if (nextlib == NULL) {
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#ifdef RTLD_NEXT
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nextlib = RTLD_NEXT;
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#else
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nextlib = dlopen("libc.so.6", RTLD_LAZY);
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#endif
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nextlib_uname = dlsym(nextlib, "uname");
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}
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err = nextlib_uname(u);
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if (err < 0)
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return err;
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if (!environ)
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/*
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* probably called from within glibc before main(); unsafe
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* to call getenv()
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*/
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return 0;
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release = getenv(S_TC_UNAME_R);
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if (release == NULL) {
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fprintf(stderr, "TRAP uname(): missing export %s?\n",
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S_TC_UNAME_R);
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return 0;
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}
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sz = strlen(release) + 1;
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if (sz > sizeof(u->release)) {
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fprintf(stderr, "uname(): sizeof release (%s) "
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"is greater than available space: %zu",
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release, sizeof(u->release));
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errno = -EFAULT;
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return -1;
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}
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memcpy(u->release, release, sz);
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return 0;
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}
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