mirror of
https://github.com/checkpoint-restore/criu.git
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eb22658ea4
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
117 lines
2.2 KiB
C
117 lines
2.2 KiB
C
#define _XOPEN_SOURCE 500
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#define _DEFAULT_SOURCE
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <termios.h>
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#include <signal.h>
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#include "zdtmtst.h"
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const char *test_doc = "Check two pts on ptmx";
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const char *test_author = "Cyrill Gorcunov <gorcunov@openvz.org>";
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static const char teststr[] = "ping\n";
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int main(int argc, char *argv[])
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{
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char buf[sizeof(teststr)];
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int master, slave1, slave2, ret;
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char *slavename;
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struct stat st;
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uid_t new_uid = 33333;
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gid_t new_gid = 44444;
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test_init(argc, argv);
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master = open("/dev/ptmx", O_RDWR);
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if (master == -1) {
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pr_perror("open(%s) failed", "/dev/ptmx");
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return 1;
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}
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grantpt(master);
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unlockpt(master);
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slavename = ptsname(master);
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slave1 = open(slavename, O_RDWR);
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if (slave1 == -1) {
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pr_perror("open(%s) failed", slavename);
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return 1;
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}
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slave2 = open(slavename, O_RDWR);
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if (slave2 == -1) {
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pr_perror("open(%s) failed", slavename);
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return 1;
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}
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if (fchown(slave1, new_uid, new_gid)) {
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pr_perror("Can't set uid/gid on %s", slavename);
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return 1;
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}
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test_daemon();
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test_waitsig();
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signal(SIGHUP, SIG_IGN);
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if (fstat(slave1, &st)) {
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pr_perror("Can't fetch stat on %s", slavename);
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return 1;
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}
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if (st.st_uid != new_uid || st.st_gid != new_gid) {
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fail("UID/GID mismatch (got %d/%d but %d/%d expected)",
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(int)st.st_uid, (int)st.st_gid,
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(int)new_uid, (int)new_gid);
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return 1;
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}
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ret = write(master, teststr, sizeof(teststr) - 1);
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if (ret != sizeof(teststr) - 1) {
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pr_perror("write(master) failed");
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return 1;
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}
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ret = read(slave1, buf, sizeof(teststr) - 1);
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if (ret != sizeof(teststr) - 1) {
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pr_perror("read(slave1) failed");
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return 1;
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}
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if (strncmp(teststr, buf, sizeof(teststr) - 1)) {
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fail("data mismatch");
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return 1;
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}
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ret = write(master, teststr, sizeof(teststr) - 1);
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if (ret != sizeof(teststr) - 1) {
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pr_perror("write(master) failed");
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return 1;
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}
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ret = read(slave2, buf, sizeof(teststr) - 1);
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if (ret != sizeof(teststr) - 1) {
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pr_perror("read(slave1) failed");
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return 1;
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}
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if (strncmp(teststr, buf, sizeof(teststr) - 1)) {
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fail("data mismatch");
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return 1;
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}
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close(master);
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close(slave1);
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close(slave2);
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pass();
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return 0;
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}
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