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168 lines
3.8 KiB
168 lines
3.8 KiB
/*
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* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
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* AUTHOR : Richard Logan
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* CO-PILOT : William Roske
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* Copyright (c) 2014 Cyril Hrubis <chrubis@suse.cz>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Further, this software is distributed without any warranty that it is
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* free of the rightful claim of any third person regarding infringement
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* or the like. Any license provided herein, whether implied or
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* otherwise, applies only to this software file. Patent licenses, if
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* any, provided herein do not apply to combinations of this program with
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* other software, or any other product whatsoever.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
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* Mountain View, CA 94043, or:
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*
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* http://www.sgi.com
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*
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* For further information regarding this notice, see:
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*
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* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
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*
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*/
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/*
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* Tests that link(2) succeds with creating n links.
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*/
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#include <sys/types.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <string.h>
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#include <signal.h>
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#include "test.h"
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#include "safe_macros.h"
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static void setup(void);
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static void help(void);
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static void cleanup(void);
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char *TCID = "link03";
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int TST_TOTAL = 2;
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#define BASENAME "lkfile"
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static char fname[255];
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static int nlinks = 0;
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static char *links_arg;
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option_t options[] = {
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{"N:", NULL, &links_arg},
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{NULL, NULL, NULL}
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};
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int main(int ac, char **av)
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{
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int lc;
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struct stat buf;
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int i, links;
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char lname[255];
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tst_parse_opts(ac, av, options, &help);
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if (links_arg) {
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nlinks = atoi(links_arg);
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if (nlinks == 0) {
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tst_brkm(TBROK, NULL,
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"nlinks is not a positive number");
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}
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if (nlinks > 1000) {
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tst_resm(TINFO,
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"nlinks > 1000 - may get errno:%d (EMLINK)",
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EMLINK);
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}
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}
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setup();
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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tst_count = 0;
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if (nlinks)
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links = nlinks;
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else
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links = (lc % 90) + 10;
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/* Create links - 1 hardlinks so that the st_nlink == links */
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for (i = 1; i < links; i++) {
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sprintf(lname, "%s%d", fname, i);
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TEST(link(fname, lname));
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if (TEST_RETURN == -1) {
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tst_brkm(TFAIL | TTERRNO, cleanup,
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"link(%s, %s) Failed", fname, lname);
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}
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}
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SAFE_STAT(cleanup, fname, &buf);
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if (buf.st_nlink != (nlink_t)links) {
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tst_resm(TFAIL, "Wrong number of links for "
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"'%s' have %i, should be %i",
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fname, (int)buf.st_nlink, links);
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goto unlink;
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}
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for (i = 1; i < links; i++) {
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sprintf(lname, "%s%d", fname, i);
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SAFE_STAT(cleanup, lname, &buf);
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if (buf.st_nlink != (nlink_t)links) {
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tst_resm(TFAIL,
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"Wrong number of links for "
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"'%s' have %i, should be %i",
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lname, (int)buf.st_nlink, links);
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goto unlink;
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}
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}
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tst_resm(TPASS, "link() passed and linkcounts=%d match", links);
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unlink:
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for (i = 1; i < links; i++) {
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sprintf(lname, "%s%d", fname, i);
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SAFE_UNLINK(cleanup, lname);
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}
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}
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cleanup();
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tst_exit();
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}
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static void help(void)
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{
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printf(" -N #links : create #links hard links every iteration\n");
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}
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static void setup(void)
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{
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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TEST_PAUSE;
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tst_tmpdir();
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sprintf(fname, "%s_%d", BASENAME, getpid());
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SAFE_TOUCH(cleanup, fname, 0700, NULL);
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}
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static void cleanup(void)
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{
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tst_rmdir();
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}
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