#include <string.h>
#include <unistd.h>
#include <fcntl.h>
+#include <errno.h>
#include "daemon.h"
#include "actions.h"
int
do_fallocate (const char *path, int len)
{
- int fd, r;
+ if (len < 0) {
+ reply_with_error ("length < 0");
+ return -1;
+ }
+
+ return do_fallocate64 (path, len);
+}
+
+int
+do_fallocate64 (const char *path, int64_t len)
+{
+ int fd;
CHROOT_IN;
fd = open (path, O_WRONLY | O_CREAT | O_TRUNC | O_NOCTTY, 0666);
CHROOT_OUT;
if (fd == -1) {
- reply_with_perror ("failed to open %s", path);
+ reply_with_perror ("open: %s", path);
return -1;
}
- r = posix_fallocate (fd, 0, len);
- if (r == -1) {
- reply_with_perror ("posix_fallocate: %s", path);
+#ifdef HAVE_POSIX_FALLOCATE
+ int err = posix_fallocate (fd, 0, len);
+ if (err != 0) {
+ errno = err;
+ reply_with_perror ("%s", path);
close (fd);
return -1;
}
+#else
+ ssize_t r;
+ char buf[BUFSIZ];
+ const size_t len_sz = (size_t) len;
+ size_t n;
+
+ memset (buf, 0, BUFSIZ);
+ n = 0;
+ while (n < len_sz) {
+ r = write (fd, buf, len_sz - n < BUFSIZ ? len_sz - n : BUFSIZ);
+ if (r == -1) {
+ reply_with_perror ("write: %s", path);
+ close (fd);
+ return -1;
+ }
+ n += r;
+ }
+#endif
if (close (fd) == -1) {
reply_with_perror ("close: %s", path);