| /* |
| * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. |
| * AUTHOR : Richard Logan |
| * CO-PILOT : William Roske |
| * Copyright (c) 2014 Cyril Hrubis <chrubis@suse.cz> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * Further, this software is distributed without any warranty that it is |
| * free of the rightful claim of any third person regarding infringement |
| * or the like. Any license provided herein, whether implied or |
| * otherwise, applies only to this software file. Patent licenses, if |
| * any, provided herein do not apply to combinations of this program with |
| * other software, or any other product whatsoever. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, |
| * Mountain View, CA 94043, or: |
| * |
| * http://www.sgi.com |
| * |
| * For further information regarding this notice, see: |
| * |
| * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ |
| */ |
| |
| /* |
| * Test if link(2) fails with EMLINK. |
| */ |
| |
| #include <sys/types.h> |
| #include <sys/fcntl.h> |
| #include <sys/stat.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <signal.h> |
| #include "test.h" |
| #include "safe_macros.h" |
| |
| static void setup(void); |
| static void cleanup(void); |
| static void help(void); |
| |
| char *TCID = "link05"; |
| int TST_TOTAL = 1; |
| |
| #define BASENAME "lkfile" |
| |
| static char fname[255]; |
| |
| static char *links_arg; |
| |
| option_t options[] = { |
| {"N:", NULL, &links_arg}, |
| {NULL, NULL, NULL} |
| }; |
| |
| static int nlinks = 1000; |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| const char *msg; |
| struct stat fbuf, lbuf; |
| int cnt; |
| char lname[255]; |
| |
| if ((msg = parse_opts(ac, av, options, &help)) != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| if (links_arg) { |
| nlinks = atoi(links_arg); |
| |
| if (nlinks == 0) { |
| tst_brkm(TBROK, NULL, |
| "nlinks is not a positive number"); |
| } |
| } |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| for (cnt = 1; cnt < nlinks; cnt++) { |
| sprintf(lname, "%s%d", fname, cnt); |
| TEST(link(fname, lname)); |
| |
| if (TEST_RETURN == -1) { |
| tst_resm(TFAIL, |
| "link(%s, %s) Failed, errno=%d : %s", |
| fname, lname, TEST_ERRNO, |
| strerror(TEST_ERRNO)); |
| } |
| } |
| |
| SAFE_STAT(cleanup, fname, &fbuf); |
| |
| for (cnt = 1; cnt < nlinks; cnt++) { |
| sprintf(lname, "%s%d", fname, cnt); |
| |
| SAFE_STAT(cleanup, lname, &lbuf); |
| if (fbuf.st_nlink <= 1 || lbuf.st_nlink <= 1 || |
| (fbuf.st_nlink != lbuf.st_nlink)) { |
| |
| tst_resm(TFAIL, |
| "link(%s, %s[1-%d]) ret %ld for %d " |
| "files, stat values do not match %d %d", |
| fname, fname, nlinks, |
| TEST_RETURN, nlinks, |
| (int)fbuf.st_nlink, (int)lbuf.st_nlink); |
| break; |
| } |
| } |
| if (cnt >= nlinks) { |
| tst_resm(TPASS, |
| "link(%s, %s[1-%d]) ret %ld for %d files," |
| "stat linkcounts match %d", |
| fname, fname, nlinks, TEST_RETURN, |
| nlinks, (int)fbuf.st_nlink); |
| } |
| |
| for (cnt = 1; cnt < nlinks; cnt++) { |
| sprintf(lname, "%s%d", fname, cnt); |
| SAFE_UNLINK(cleanup, lname); |
| } |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| static void help(void) |
| { |
| printf(" -N #links : create #links hard links every iteration\n"); |
| } |
| |
| static void setup(void) |
| { |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| TEST_PAUSE; |
| |
| tst_tmpdir(); |
| |
| sprintf(fname, "%s_%d", BASENAME, getpid()); |
| SAFE_TOUCH(cleanup, fname, 0700, NULL); |
| } |
| |
| static void cleanup(void) |
| { |
| tst_rmdir(); |
| } |