FILE *f;
};
-int sd_memfd_new(sd_memfd **m) {
+_public_ int sd_memfd_new(sd_memfd **m) {
_cleanup_close_ int kdbus = -1;
sd_memfd *n;
int fd;
- if (!m)
- return -EINVAL;
+ assert_return(m, -EINVAL);
kdbus = open("/dev/kdbus/control", O_RDWR|O_NOCTTY|O_CLOEXEC);
if (kdbus < 0)
return 0;
}
-int sd_memfd_make(int fd, sd_memfd **m) {
+_public_ int sd_memfd_make(int fd, sd_memfd **m) {
sd_memfd *n;
uint64_t sz;
- if (!m)
- return -EINVAL;
- if (fd < 0)
- return -EINVAL;
+ assert_return(m, -EINVAL);
+ assert_return(fd >= 0, -EINVAL);
/* Check if this is a valid memfd */
if (ioctl(fd, KDBUS_CMD_MEMFD_SIZE_GET, &sz) < 0)
return 0;
}
-void sd_memfd_free(sd_memfd *m) {
+_public_ void sd_memfd_free(sd_memfd *m) {
if (!m)
return;
free(m);
}
-int sd_memfd_get_fd(sd_memfd *m) {
- if (!m)
- return -EINVAL;
+_public_ int sd_memfd_get_fd(sd_memfd *m) {
+ assert_return(m, -EINVAL);
return m->fd;
}
-int sd_memfd_get_file(sd_memfd *m, FILE **f) {
- if (!m)
- return -EINVAL;
- if (!f)
- return -EINVAL;
+_public_ int sd_memfd_get_file(sd_memfd *m, FILE **f) {
+ assert_return(m, -EINVAL);
+ assert_return(f, -EINVAL);
if (!m->f) {
m->f = fdopen(m->fd, "r+");
return 0;
}
-int sd_memfd_dup_fd(sd_memfd *m) {
+_public_ int sd_memfd_dup_fd(sd_memfd *m) {
int fd;
- if (!m)
- return -EINVAL;
+ assert_return(m, -EINVAL);
fd = fcntl(m->fd, F_DUPFD_CLOEXEC, 3);
if (fd < 0)
return fd;
}
-int sd_memfd_map(sd_memfd *m, uint64_t offset, size_t size, void **p) {
+_public_ int sd_memfd_map(sd_memfd *m, uint64_t offset, size_t size, void **p) {
void *q;
int sealed;
- if (!m)
- return -EINVAL;
- if (size <= 0)
- return -EINVAL;
- if (!p)
- return -EINVAL;
+ assert_return(m, -EINVAL);
+ assert_return(size > 0, -EINVAL);
+ assert_return(p, -EINVAL);
sealed = sd_memfd_get_sealed(m);
if (sealed < 0)
return 0;
}
-int sd_memfd_set_sealed(sd_memfd *m, int b) {
+_public_ int sd_memfd_set_sealed(sd_memfd *m, int b) {
int r;
- if (!m)
- return -EINVAL;
+ assert_return(m, -EINVAL);
r = ioctl(m->fd, KDBUS_CMD_MEMFD_SEAL_SET, b);
if (r < 0)
return 0;
}
-int sd_memfd_get_sealed(sd_memfd *m) {
+_public_ int sd_memfd_get_sealed(sd_memfd *m) {
int r, b;
- if (!m)
- return -EINVAL;
+ assert_return(m, -EINVAL);
r = ioctl(m->fd, KDBUS_CMD_MEMFD_SEAL_GET, &b);
if (r < 0)
return !!b;
}
-int sd_memfd_get_size(sd_memfd *m, uint64_t *sz) {
+_public_ int sd_memfd_get_size(sd_memfd *m, uint64_t *sz) {
int r;
- if (!m)
- return -EINVAL;
- if (!sz)
- return -EINVAL;
+ assert_return(m, -EINVAL);
+ assert_return(sz, -EINVAL);
r = ioctl(m->fd, KDBUS_CMD_MEMFD_SIZE_GET, sz);
if (r < 0)
return r;
}
-int sd_memfd_set_size(sd_memfd *m, uint64_t sz) {
+_public_ int sd_memfd_set_size(sd_memfd *m, uint64_t sz) {
int r;
- if (!m)
- return -EINVAL;
+ assert_return(m, -EINVAL);
r = ioctl(m->fd, KDBUS_CMD_MEMFD_SIZE_SET, &sz);
if (r < 0)
return r;
}
+
+_public_ int sd_memfd_new_and_map(sd_memfd **m, size_t sz, void **p) {
+ sd_memfd *n;
+ int r;
+
+ r = sd_memfd_new(&n);
+ if (r < 0)
+ return r;
+
+ r = sd_memfd_set_size(n, sz);
+ if (r < 0) {
+ sd_memfd_free(n);
+ return r;
+ }
+
+ r = sd_memfd_map(n, 0, sz, p);
+ if (r < 0) {
+ sd_memfd_free(n);
+ return r;
+ }
+
+ *m = n;
+ return 0;
+}