1 /*
2  * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
3  *
4  * This program is free software; you can redistribute it and/or modify it
5  * under the terms of version 2 of the GNU General Public License as
6  * published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it would be useful, but
9  * WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11  *
12  * Further, this software is distributed without any warranty that it is
13  * free of the rightful claim of any third person regarding infringement
14  * or the like.  Any license provided herein, whether implied or
15  * otherwise, applies only to this software file.  Patent licenses, if
16  * any, provided herein do not apply to combinations of this program with
17  * other software, or any other product whatsoever.
18  *
19  * You should have received a copy of the GNU General Public License along
20  * with this program; if not, write the Free Software Foundation, Inc.,
21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22  *
23  * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
24  * Mountain View, CA  94043, or:
25  *
26  * http://www.sgi.com
27  *
28  * For further information regarding this notice, see:
29  *
30  * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
31  *
32  */
33 /* $Id: readlink02.c,v 1.6 2009/11/02 13:57:17 subrata_modak Exp $ */
34 /**********************************************************
35  *
36  *    OS Test - Silicon Graphics, Inc.
37  *
38  *    TEST IDENTIFIER	: readlink02
39  *
40  *    EXECUTED BY	: anyone
41  *
42  *    TEST TITLE	: Basic test for readlink(2)
43  *
44  *    PARENT DOCUMENT	: usctpl01
45  *
46  *    TEST CASE TOTAL	: 1
47  *
48  *    WALL CLOCK TIME	: 1
49  *
50  *    CPU TYPES		: ALL
51  *
52  *    AUTHOR		: William Roske
53  *
54  *    CO-PILOT		: Dave Fenner
55  *
56  *    DATE STARTED	: 03/30/92
57  *
58  *    INITIAL RELEASE	: UNICOS 7.0
59  *
60  *    TEST CASES
61  *
62  * 	1.) readlink(2) returns...(See Description)
63  *
64  *    INPUT SPECIFICATIONS
65  * 	The standard options for system call tests are accepted.
66  *	(See the parse_opts(3) man page).
67  *
68  *    OUTPUT SPECIFICATIONS
69  *$
70  *    DURATION
71  * 	Terminates - with frequency and infinite modes.
72  *
73  *    SIGNALS
74  * 	Uses SIGUSR1 to pause before test if option set.
75  * 	(See the parse_opts(3) man page).
76  *
77  *    RESOURCES
78  * 	None
79  *
80  *    ENVIRONMENTAL NEEDS
81  *      No run-time environmental needs.
82  *
83  *    SPECIAL PROCEDURAL REQUIREMENTS
84  * 	None
85  *
86  *    INTERCASE DEPENDENCIES
87  * 	None
88  *
89  *    DETAILED DESCRIPTION
90  *	This is a Phase I test for the readlink(2) system call.  It is intended
91  *	to provide a limited exposure of the system call, for now.  It
92  *	should/will be extended when full functional tests are written for
93  *	readlink(2).
94  *
95  * 	Setup:
96  * 	  Setup signal handling.
97  *	  Pause for SIGUSR1 if option specified.
98  *
99  * 	Test:
100  *	 Loop if the proper options are given.
101  * 	  Execute system call
102  *	  Check return code, if system call failed (return=-1)
103  *		Log the errno and Issue a FAIL message.
104  *	  Otherwise, Issue a PASS message.
105  *
106  * 	Cleanup:
107  * 	  Print errno log and/or timing stats if options given
108  *
109  *
110  *#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
111 
112 #include <sys/types.h>
113 #include <fcntl.h>
114 #include <errno.h>
115 #include <string.h>
116 #include <signal.h>
117 #include "test.h"
118 
119 void setup();
120 void cleanup();
121 
122 char *TCID = "readlink02";
123 int TST_TOTAL = 1;
124 
125 char fname[255], buf[255], symlnk[255];
126 int fd;
127 
main(int ac,char ** av)128 int main(int ac, char **av)
129 {
130 	int lc;
131 
132     /***************************************************************
133      * parse standard options
134      ***************************************************************/
135 	tst_parse_opts(ac, av, NULL, NULL);
136 
137     /***************************************************************
138      * perform global setup for test
139      ***************************************************************/
140 	setup();
141 
142     /***************************************************************
143      * check looping state if -c option given
144      ***************************************************************/
145 	for (lc = 0; TEST_LOOPING(lc); lc++) {
146 
147 		tst_count = 0;
148 
149 		/*
150 		 * Call readlink(2)
151 		 */
152 		TEST(readlink(symlnk, buf, 255));
153 
154 		/* check return code */
155 		if (TEST_RETURN == -1) {
156 			tst_resm(TFAIL,
157 				 "readlink(%s, buf, 255) Failed, errno=%d : %s",
158 				 symlnk, TEST_ERRNO, strerror(TEST_ERRNO));
159 		} else {
160 			tst_resm(TPASS,
161 				 "readlink(%s, buf, 255) returned %ld",
162 				 symlnk, TEST_RETURN);
163 		}
164 
165 	}
166 
167 	cleanup();
168 	tst_exit();
169 }
170 
171 /***************************************************************
172  * setup() - performs all ONE TIME setup for this test.
173  ***************************************************************/
setup(void)174 void setup(void)
175 {
176 
177 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
178 
179 	TEST_PAUSE;
180 
181 	tst_tmpdir();
182 
183 	sprintf(fname, "./tfile_%d", getpid());
184 	if ((fd = open(fname, O_RDWR | O_CREAT, 0700)) == -1) {
185 		tst_brkm(TBROK, cleanup,
186 			 "open(%s, O_RDWR|O_CREAT,0700) Failed, errno=%d : %s",
187 			 fname, errno, strerror(errno));
188 	}
189 	if (close(fd) == -1) {
190 		tst_resm(TWARN, "close(%s) Failed, errno=%d : %s",
191 			 fname, errno, strerror(errno));
192 	}
193 	sprintf(symlnk, "./sl_%d", getpid());
194 	if (symlink(fname, symlnk) == -1) {
195 		tst_resm(TWARN, "symlnk(%s, %s) Failed, errno=%d : %s",
196 			 fname, symlnk, errno, strerror(errno));
197 	}
198 
199 }
200 
201 /***************************************************************
202  * cleanup() - performs all ONE TIME cleanup for this test at
203  *		completion or premature exit.
204  ***************************************************************/
cleanup(void)205 void cleanup(void)
206 {
207 
208 	tst_rmdir();
209 
210 }
211