#include "actions.h"
int
-do_fallocate (char *path, int len)
+do_fallocate (const char *path, int len)
{
- int fd, r;
-
- NEED_ROOT (-1);
- ABS_PATH (path, return -1);
+ int fd;
CHROOT_IN;
fd = open (path, O_WRONLY | O_CREAT | O_TRUNC | O_NOCTTY, 0666);
CHROOT_OUT;
if (fd == -1) {
- reply_with_perror (path);
+ reply_with_perror ("open: %s", path);
return -1;
}
+#ifdef HAVE_POSIX_FALLOCATE
+ int r;
+
r = posix_fallocate (fd, 0, len);
if (r == -1) {
- reply_with_perror ("posix_fallocate: %s", path);
+ 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);