sbrk01.c revision 1569799abe4296fc5ca50ede305c1eb2ac482422 
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., 59
21 * Temple Place - Suite 330, Boston MA 02111-1307, 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: sbrk01.c,v 1.8 2009/06/09 16:01:21 subrata_modak Exp $ */
34/**********************************************************
35 *
36 *    OS Test - Silicon Graphics, Inc.
37 *
38 *    TEST IDENTIFIER	: sbrk01
39 *
40 *    EXECUTED BY	: anyone
41 *
42 *    TEST TITLE	: Basic test for sbrk(2)
43 *
44 *    PARENT DOCUMENT	: usctpl01
45 *
46 *    TEST CASE TOTAL	: 2
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	: 06/05/92
57 *
58 *    INITIAL RELEASE	: UNICOS 7.0
59 *
60 *    TEST CASES
61 *
62 * 	1.) sbrk(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 sbrk(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 *	sbrk(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 <unistd.h>
113#include <errno.h>
114#include <string.h>
115#include <signal.h>
116#include <sys/types.h>
117
118#include "test.h"
119#include "usctest.h"
120
121void setup();
122void cleanup();
123
124char *TCID = "sbrk01";		/* Test program identifier.    */
125int TST_TOTAL = 2;		/* Total number of test cases. */
126
127int Increment;			/* Amount to make change size by */
128
129#if !defined(UCLINUX)
130
131int main(int ac, char **av)
132{
133	int lc;			/* loop counter */
134	char *msg;		/* message returned from parse_opts */
135	void *tret;
136
137    /***************************************************************
138     * parse standard options
139     ***************************************************************/
140	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) {
141		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
142
143	}
144
145    /***************************************************************
146     * perform global setup for test
147     ***************************************************************/
148	setup();
149
150    /***************************************************************
151     * check looping state if -c option given
152     ***************************************************************/
153	for (lc = 0; TEST_LOOPING(lc); lc++) {
154
155		Tst_count = 0;
156
157		/*
158		 * TEST CASE:
159		 * Increase by 8192 bytes
160		 */
161		Increment = 8192;
162
163		/* Call sbrk(2) */
164		errno = 0;
165		tret = sbrk(Increment);	/* Remove -64 IRIX compiler warning */
166		TEST_ERRNO = errno;
167
168		/* check return code */
169		if (tret == (void *)-1) {
170			TEST_ERROR_LOG(TEST_ERRNO);
171			tst_resm(TFAIL,
172				 "sbrk - Increase by 8192 bytes failed, errno=%d : %s",
173				 TEST_ERRNO, strerror(TEST_ERRNO));
174		} else {
175	    /***************************************************************
176	     * only perform functional verification if flag set (-f not given)
177	     ***************************************************************/
178			if (STD_FUNCTIONAL_TEST) {
179				/* No Verification test, yet... */
180				tst_resm(TPASS,
181					 "sbrk - Increase by 8192 bytes returned %p",
182					 tret);
183			}
184		}
185
186		/*
187		 * TEST CASE:
188		 * Decrease to original size
189		 */
190		Increment = (Increment * -1);
191
192		/* Call sbrk(2) */
193		errno = 0;
194		tret = sbrk(Increment);
195		TEST_ERRNO = errno;
196
197		/* check return code */
198		if (tret == (void *)-1) {
199			TEST_ERROR_LOG(TEST_ERRNO);
200			tst_resm(TFAIL,
201				 "sbrk - Decrease to original size failed, errno=%d : %s",
202				 TEST_ERRNO, strerror(TEST_ERRNO));
203		} else {
204	    /***************************************************************
205	     * only perform functional verification if flag set (-f not given)
206	     ***************************************************************/
207			if (STD_FUNCTIONAL_TEST) {
208				/* No Verification test, yet... */
209				tst_resm(TPASS,
210					 "sbrk - Decrease to original size returned %p",
211					 tret);
212			}
213		}
214
215	}
216
217    /***************************************************************
218     * cleanup and exit
219     ***************************************************************/
220	cleanup();
221
222}
223
224#else
225
226int main()
227{
228	tst_resm(TINFO, "test is not available on uClinux");
229	tst_exit();
230}
231
232#endif /* if !defined(UCLINUX) */
233
234/***************************************************************
235 * setup() - performs all ONE TIME setup for this test.
236 ***************************************************************/
237void setup()
238{
239
240	tst_sig(NOFORK, DEF_HANDLER, cleanup);
241
242	TEST_PAUSE;
243
244	/* make a temp dir and cd to it */
245	tst_tmpdir();
246}
247
248/***************************************************************
249 * cleanup() - performs all ONE TIME cleanup for this test at
250 *		completion or premature exit.
251 ***************************************************************/
252void cleanup()
253{
254	/*
255	 * print timing stats if that option was specified.
256	 * print errno log if that option was specified.
257	 */
258	TEST_CLEANUP;
259
260	tst_rmdir();
261
262}