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#include "../config-host.h"
// SPDX-License-Identifier: MIT
#define _GNU_SOURCE 1
#define _FILE_OFFSET_BITS 64
// Test program for io_uring IORING_OP_CLOSE with O_PATH file.
// Author: Clayton Harris <bugs@claycon.org>, 2020-06-07
// linux 5.6.14-300.fc32.x86_64
// gcc 10.1.1-1.fc32
// liburing.x86_64 0.5-1.fc32
// gcc -O2 -Wall -Wextra -std=c11 -o close_opath close_opath.c -luring
// ./close_opath testfilepath
#include <errno.h>
#include <fcntl.h>
#include <liburing.h>
#include <sys/stat.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
typedef struct
{
const char *const flnames;
const int oflags;
} oflgs_t;
static int test_io_uring_close(struct io_uring *ring, int fd)
{
struct io_uring_sqe *sqe;
struct io_uring_cqe *cqe;
int ret;
sqe = io_uring_get_sqe(ring);
if (!sqe) {
fprintf(stderr, "io_uring_get_sqe() failed\n");
return -ENOENT;
}
io_uring_prep_close(sqe, fd);
ret = io_uring_submit(ring);
if (ret < 0) {
fprintf(stderr, "io_uring_submit() failed, errno %d: %s\n",
-ret, strerror(-ret));
return ret;
}
ret = io_uring_wait_cqe(ring, &cqe);
if (ret < 0) {
fprintf(stderr, "io_uring_wait_cqe() failed, errno %d: %s\n",
-ret, strerror(-ret));
return ret;
}
ret = cqe->res;
io_uring_cqe_seen(ring, cqe);
if (ret < 0 && ret != -EOPNOTSUPP && ret != -EINVAL && ret != -EBADF) {
fprintf(stderr, "io_uring close() failed, errno %d: %s\n",
-ret, strerror(-ret));
return ret;
}
return 0;
}
static int open_file(const char *path, const oflgs_t *oflgs)
{
int fd;
fd = openat(AT_FDCWD, path, oflgs->oflags, 0);
if (fd < 0) {
int err = errno;
fprintf(stderr, "openat(%s, %s) failed, errno %d: %s\n",
path, oflgs->flnames, err, strerror(err));
return -err;
}
return fd;
}
int main(int argc, char *argv[])
{
const char *fname = ".";
struct io_uring ring;
int ret, i;
static const oflgs_t oflgs[] = {
{ "O_RDONLY", O_RDONLY },
{ "O_PATH", O_PATH }
};
ret = io_uring_queue_init(2, &ring, 0);
if (ret < 0) {
fprintf(stderr, "io_uring_queue_init() failed, errno %d: %s\n",
-ret, strerror(-ret));
return 0x02;
}
#define OFLGS_SIZE (sizeof(oflgs) / sizeof(oflgs[0]))
ret = 0;
for (i = 0; i < OFLGS_SIZE; i++) {
int fd;
fd = open_file(fname, &oflgs[i]);
if (fd < 0) {
ret |= 0x02;
break;
}
/* Should always succeed */
if (test_io_uring_close(&ring, fd) < 0)
ret |= 0x04 << i;
}
#undef OFLGS_SIZE
io_uring_queue_exit(&ring);
return ret;
}
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