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[FreeBSD/releng/10.2.git] / contrib / netbsd-tests / fs / kernfs / t_basic.c
1 /*      $NetBSD: t_basic.c,v 1.3 2010/05/31 23:44:54 pooka Exp $        */
2
3 #include <sys/types.h>
4 #include <sys/mount.h>
5 #include <sys/module.h>
6 #include <sys/dirent.h>
7 #include <sys/sysctl.h>
8
9 #include <atf-c.h>
10 #include <err.h>
11 #include <errno.h>
12 #include <fcntl.h>
13 #include <stdio.h>
14 #include <unistd.h>
15 #include <string.h>
16 #include <stdlib.h>
17
18 #include <rump/rump.h>
19 #include <rump/rump_syscalls.h>
20
21 #include <miscfs/kernfs/kernfs.h>
22
23 #include "../../h_macros.h"
24
25 ATF_TC(getdents);
26 ATF_TC_HEAD(getdents, tc)
27 {
28
29         atf_tc_set_md_var(tc, "descr", "kernfs directory contains files");
30 }
31
32 static void
33 mountkernfs(void)
34 {
35
36         rump_init();
37
38         if (rump_sys_mkdir("/kern", 0777) == -1)
39                 atf_tc_fail_errno("mkdir /kern");
40         if (rump_sys_mount(MOUNT_KERNFS, "/kern", 0, NULL, 0) == -1)
41                 atf_tc_fail_errno("could not mount kernfs");
42 }
43
44 ATF_TC_BODY(getdents, tc)
45 {
46         struct dirent *dent;
47         char buf[8192];
48         int dfd;
49
50         mountkernfs();
51
52         if ((dfd = rump_sys_open("/kern", O_RDONLY)) == -1)
53                 atf_tc_fail_errno("can't open directory");
54         if (rump_sys_getdents(dfd, buf, sizeof(buf)) == -1)
55                 atf_tc_fail_errno("getdents");
56
57         /*
58          * Check that we get the first three values (., .., boottime).
59          * Make more complete by autogenerating list from kernfs_vnops.c?
60          */
61         dent = (void *)buf;
62         ATF_REQUIRE_STREQ(dent->d_name, ".");
63         dent = _DIRENT_NEXT(dent);
64         ATF_REQUIRE_STREQ(dent->d_name, "..");
65         dent = _DIRENT_NEXT(dent);
66         ATF_REQUIRE_STREQ(dent->d_name, "boottime");
67
68         /* done */
69 }
70
71 ATF_TC(hostname);
72 ATF_TC_HEAD(hostname, tc)
73 {
74
75         atf_tc_set_md_var(tc, "descr", "/kern/hostname changes hostname");
76 }
77
78 static char *
79 getthehost(void)
80 {
81         static char buf[8192];
82         int mib[2];
83         size_t blen;
84
85         mib[0] = CTL_KERN;
86         mib[1] = KERN_HOSTNAME;
87         blen = sizeof(buf);
88         if (rump_sys___sysctl(mib, 2, buf, &blen, NULL, 0) == -1)
89                 atf_tc_fail_errno("sysctl gethostname");
90
91         return buf;
92 }
93
94 #define NEWHOSTNAME "turboton roos-berg"
95 ATF_TC_BODY(hostname, tc)
96 {
97         char buf[8192];
98         char *shost, *p;
99         int fd;
100
101         mountkernfs();
102         if ((fd = rump_sys_open("/kern/hostname", O_RDWR)) == -1)
103                 atf_tc_fail_errno("open hostname");
104
105         /* check initial match */
106         shost = getthehost();
107         buf[0] = '\0';
108         if (rump_sys_read(fd, buf, sizeof(buf)) == -1)
109                 atf_tc_fail_errno("read hostname");
110         p = strchr(buf, '\n');
111         if (p)
112                  *p = '\0';
113         ATF_REQUIRE_STREQ_MSG(buf, shost, "initial hostname mismatch");
114
115         /* check changing hostname works */
116         if (rump_sys_pwrite(fd, NEWHOSTNAME, strlen(NEWHOSTNAME), 0)
117             != strlen(NEWHOSTNAME)) {
118                 atf_tc_fail_errno("write new hostname");
119         }
120
121         shost = getthehost();
122         ATF_REQUIRE_STREQ_MSG(NEWHOSTNAME, shost, "modified hostname mismatch");
123
124         /* done */
125 }
126
127 ATF_TP_ADD_TCS(tp)
128 {
129         ATF_TP_ADD_TC(tp, hostname);
130         ATF_TP_ADD_TC(tp, getdents);
131
132         return atf_no_error();
133 }