1 /*
2 *
3 * Copyright (c) International Business Machines Corp., 2002
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20 /* 11/12/2002 Port to LTP robbiew@us.ibm.com */
21 /* 06/30/2001 Port to Linux nsharoff@us.ibm.com */
22
23 /*
24 * NAME
25 * rename14.c - create and rename files
26 *
27 * CALLS
28 * create, unlink, rename
29 *
30 * ALGORITHM
31 * Creates two processes. One creates and unlinks a file.
32 * The other renames that file.
33 *
34 */
35
36 #include <stdio.h>
37 #include <errno.h>
38 #include <signal.h>
39 #include <stdlib.h>
40 #include <unistd.h>
41 #include <wait.h>
42 #include <sys/types.h>
43 #include <sys/stat.h>
44 #include <fcntl.h>
45
46 /** LTP Port **/
47 #include "test.h"
48
49 #define FAILED 0
50 #define PASSED 1
51
52 int local_flag = PASSED;
53
54 char *TCID = "rename14";
55 int TST_TOTAL = 1;
56 /**************/
57
58 #define RUNTIME 45
59
60 int kidpid[2];
61 int parent_pid;
62
main(int argc,char * argv[])63 int main(int argc, char *argv[])
64 {
65 int pid;
66 sigset_t set;
67 struct sigaction act, oact;
68 int term();
69 int al();
70 void dochild1();
71 void dochild2();
72
73 #ifdef UCLINUX
74
75 tst_parse_opts(argc, argv, NULL, NULL);
76
77 maybe_run_child(&dochild1, "n", 1);
78 maybe_run_child(&dochild2, "n", 2);
79 #endif
80 sigemptyset(&set);
81 act.sa_handler = (void (*)())term;
82 act.sa_mask = set;
83 act.sa_flags = 0;
84 if (sigaction(SIGTERM, &act, &oact)) {
85 tst_brkm(TBROK, NULL, "Sigaction(SIGTERM)");
86 }
87
88 sigemptyset(&set);
89 act.sa_handler = (void (*)())al;
90 act.sa_mask = set;
91 act.sa_flags = 0;
92 if (sigaction(SIGALRM, &act, 0)) {
93 tst_brkm(TBROK, NULL, "Sigaction(SIGALRM)");
94 }
95 parent_pid = getpid();
96 tst_tmpdir();
97 /*--------------------------------------------------------------*/
98
99 pid = FORK_OR_VFORK();
100 if (pid < 0) {
101 tst_brkm(TBROK, NULL, "fork() returned %d", pid);
102 }
103 if (pid == 0) {
104 #ifdef UCLINUX
105 if (self_exec(argv[0], "n", 1) < 0) {
106 tst_resm(TBROK, "self_exec failed");
107 }
108 #else
109 dochild1();
110 #endif
111 }
112 kidpid[0] = pid;
113 pid = FORK_OR_VFORK();
114 if (pid < 0) {
115 (void)kill(kidpid[0], SIGTERM);
116 (void)unlink("./rename14");
117 tst_brkm(TBROK, NULL, "fork() returned %d", pid);
118 }
119 if (pid == 0) {
120 #ifdef UCLINUX
121 if (self_exec(argv[0], "n", 1) < 0) {
122 tst_resm(TBROK, "self_exec failed");
123 }
124 #else
125 dochild2();
126 #endif
127 }
128 kidpid[1] = pid;
129
130 alarm(RUNTIME);
131
132 /* Collect child processes. */
133 /* Wait for timeout */
134 pause();
135
136 kill(kidpid[0], SIGTERM);
137 kill(kidpid[1], SIGTERM);
138
139 waitpid(kidpid[0], NULL, 0);
140 waitpid(kidpid[1], NULL, 0);
141
142 unlink("./rename14");
143 unlink("./rename14xyz");
144 (local_flag == PASSED) ? tst_resm(TPASS, "Test Passed")
145 : tst_resm(TFAIL, "Test Failed");
146
147 tst_rmdir();
148 tst_exit();
149 }
150
151 /* FUNCTIONS GO HERE */
152
term(void)153 int term(void)
154 {
155 if (parent_pid != getpid())
156 exit(0);
157 if (kidpid[0])
158 return (kill(kidpid[0], SIGTERM));
159 if (kidpid[1])
160 return (kill(kidpid[1], SIGTERM));
161 return 0;
162 }
163
al(void)164 int al(void)
165 {
166 if (kidpid[0])
167 return (kill(kidpid[0], SIGTERM));
168 if (kidpid[1])
169 return (kill(kidpid[1], SIGTERM));
170 return 0;
171 }
172
dochild1(void)173 void dochild1(void)
174 {
175 int fd;
176
177 for (;;) {
178 fd = creat("./rename14", 0666);
179 unlink("./rename14");
180 close(fd);
181 }
182 }
183
dochild2(void)184 void dochild2(void)
185 {
186 for (;;) {
187 rename("./rename14", "./rename14xyz");
188 }
189 }
190