[CRIU] [PATCH v2] zdtm: new testcase for unhashed proc entries
Konstantin Khlebnikov
khlebnikov at openvz.org
Thu Sep 13 07:42:11 EDT 2012
Testcase: fork child, chdir into /proc/$pid and kill child.
test for http://bugzilla.openvz.org/show_bug.cgi?id=2315
Signed-off-by: Konstantin Khlebnikov <khlebnikov at openvz.org>
---
test/zdtm/live/static/Makefile | 1
test/zdtm/live/static/unhashed_proc.c | 81 +++++++++++++++++++++++++++++++++
2 files changed, 82 insertions(+)
create mode 100644 test/zdtm/live/static/unhashed_proc.c
diff --git a/test/zdtm/live/static/Makefile b/test/zdtm/live/static/Makefile
index 692b687..d0806b0 100644
--- a/test/zdtm/live/static/Makefile
+++ b/test/zdtm/live/static/Makefile
@@ -62,6 +62,7 @@ TST_NOFILE = \
netns \
session01 \
socket-ext \
+ unhashed_proc \
# jobctl00 \
TST_FILE = \
diff --git a/test/zdtm/live/static/unhashed_proc.c b/test/zdtm/live/static/unhashed_proc.c
new file mode 100644
index 0000000..b1fc3fc
--- /dev/null
+++ b/test/zdtm/live/static/unhashed_proc.c
@@ -0,0 +1,81 @@
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
+#include <string.h>
+#include <linux/limits.h>
+
+#include "zdtmtst.h"
+
+const char *test_doc = "Chdir into unhashed proc entry";
+const char *test_author = "Konstantin Khlebnikov <khlebnikov at openvz.org>";
+
+int main(int argc, char ** argv)
+{
+ int pid, len;
+ char cwd1[PATH_MAX], cwd2[PATH_MAX];
+
+ test_init(argc, argv);
+
+ pid = fork();
+ if (pid < 0) {
+ err("Fork failed %m\n");
+ exit(1);
+ } else if (!pid) {
+ pause();
+ return 0;
+ }
+
+ sprintf(cwd1, "/proc/%d", pid);
+
+ if (chdir(cwd1) < 0) {
+ kill(pid, SIGKILL);
+ err("Chdir failed %m\n");
+ exit(1);
+ }
+
+ kill(pid, SIGKILL);
+ waitpid(pid, NULL, 0);
+
+ if (getcwd(cwd1, sizeof(cwd1))) {
+ err("successfull getcwd: %s\n", cwd1);
+ exit(1);
+ } else if (errno != ENOENT) {
+ err("wrong errno: %m\n");
+ exit(1);
+ }
+
+ len = readlink("/proc/self/cwd", cwd1, sizeof(cwd1));
+ if (len < 0) {
+ err("can't read cwd symlink %m\n");
+ exit(1);
+ }
+ cwd1[len] = 0;
+
+ test_daemon();
+ test_waitsig();
+
+ if (getcwd(cwd2, sizeof(cwd2))) {
+ fail("successfull getcwd: %s\n", cwd2);
+ exit(1);
+ } else if (errno != ENOENT) {
+ fail("wrong errno: %m\n");
+ exit(1);
+ }
+
+ len = readlink("/proc/self/cwd", cwd2, sizeof(cwd2)-1);
+ if (len < 0) {
+ fail("can't read cwd symlink %m\n");
+ exit(1);
+ }
+ cwd2[len] = 0;
+
+ if (strcmp(cwd1, cwd2))
+ test_msg("cwd differs: %s != %s\n", cwd1, cwd2);
+
+ pass();
+
+ return 0;
+}
More information about the CRIU
mailing list