criu/test/zdtm/static/file_append.c
Pavel Emelyanov 2e13f1f029 test: Get rid of live directory
Move static and transition into zdtm top. We can't move all the micro
tests themselves, as we need to distinguish static from non static (zdtm.py
makes additional checks on static ones).

Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
2016-02-20 13:40:52 +03:00

61 lines
1 KiB
C

#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include "zdtmtst.h"
const char *test_doc = "Check O_APPEND preserved";
const char *test_author = "Pavel Emelyanov <xemul@parallels.com>";
char *filename;
TEST_OPTION(filename, string, "file name", 1);
int main(int argc, char **argv)
{
int fd, fd2, ret;
char tmp[3];
test_init(argc, argv);
fd = open(filename, O_RDWR | O_CREAT | O_APPEND, 0644);
if (fd == -1)
return 1;
fd2 = open(filename, O_RDWR, 0644);
if (fd2 == -1)
return 1;
test_daemon();
test_waitsig();
if (write(fd2, "x", 1) != 1) {
pr_perror("Can't write x");
return 1;
}
if (write(fd, "y", 1) != 1) {
pr_perror("Can't write y");
return 1;
}
lseek(fd2, 0, SEEK_SET);
ret = read(fd2, tmp, 3);
if (ret != 2) {
fail("Smth's wrong with file size");
return 1;
}
tmp[2] = '\0';
if (strcmp(tmp, "xy")) {
fail("Smth's wron with file contents (%s)", tmp);
return 1;
}
pass();
return 0;
}