99 lines
2.0 KiB
C
99 lines
2.0 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.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 <errno.h>
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#include <string.h>
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/* backward compat in case it's not defined */
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#ifndef O_TMPFILE
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#define O_TMPFILE (020000000|O_DIRECTORY)
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#endif
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/*
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* DESCRIPTION:
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* Verify we can link tmpfile.
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*
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* STRATEGY:
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* 1. open(2) with O_TMPFILE.
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* 2. linkat(2).
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* 3. freeze the pool, export and re-import the pool.
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* 3. stat(2) the path to verify it has been created.
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*
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*/
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int
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main(int argc, char *argv[])
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{
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int i, fd, ret;
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char spath[1024], dpath[1024];
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char *penv[] = {"TESTDIR", "TESTFILE0"};
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struct stat sbuf;
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(void) fprintf(stdout, "Verify O_TMPFILE file can be linked.\n");
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/*
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* Get the environment variable values.
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*/
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for (i = 0; i < sizeof (penv) / sizeof (char *); i++) {
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if ((penv[i] = getenv(penv[i])) == NULL) {
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(void) fprintf(stderr, "getenv(penv[%d])\n", i);
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exit(1);
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}
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}
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fd = open(penv[0], O_RDWR|O_TMPFILE, 0666);
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if (fd < 0) {
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perror("open");
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exit(2);
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}
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snprintf(spath, 1024, "/proc/self/fd/%d", fd);
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snprintf(dpath, 1024, "%s/%s", penv[0], penv[1]);
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if (linkat(AT_FDCWD, spath, AT_FDCWD, dpath, AT_SYMLINK_FOLLOW) < 0) {
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perror("linkat");
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close(fd);
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exit(3);
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}
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if ((ret = system("sudo zpool freeze $TESTPOOL"))) {
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if (ret == -1)
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perror("system \"zpool freeze\"");
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else
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fprintf(stderr, "zpool freeze exits with %d\n",
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WEXITSTATUS(ret));
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exit(4);
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}
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close(fd);
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if ((ret = system("sudo zpool export $TESTPOOL"))) {
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if (ret == -1)
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perror("system \"zpool export\"");
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else
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fprintf(stderr, "zpool export exits with %d\n",
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WEXITSTATUS(ret));
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exit(4);
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}
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if ((ret = system("sudo zpool import $TESTPOOL"))) {
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if (ret == -1)
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perror("system \"zpool import\"");
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else
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fprintf(stderr, "zpool import exits with %d\n",
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WEXITSTATUS(ret));
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exit(4);
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}
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if (stat(dpath, &sbuf) < 0) {
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perror("stat");
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unlink(dpath);
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exit(5);
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}
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unlink(dpath);
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return (0);
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}
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