mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-06-30 16:28:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Work around copy_file_range() bug in eCryptFs

Browse source 
When programs like ar.ape and compile.ape are run on eCryptFs partitions
on Linux, copy_file_range() will fail with EINVAL which is wrong because
eCryptFs which doesn't support this system call, should raise EOPNOTSUPP

See https://github.com/jart/cosmopolitan/discussions/1305
This commit is contained in:
Justine Tunney 2024-09-29 16:31:48 -07:00
parent 12cc2de22e
commit fef24d622a
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
5 changed files with 9 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

6
tool/build/compile.c
View file

@ -798,7 +798,11 @@ bool MovePreservingDestinationInode(const char *from, const char *to) {
rc = copy_file_range(fdin, 0, fdout, 0, remain, 0);
if (rc != -1) {
remain -= rc;
} else if (errno == EXDEV || errno == ENOSYS) {
} else if (errno == EXDEV || // different partitions
errno == EINVAL || // possible w/ ecryptfs
errno == ENOSYS || // not linux or freebsd
errno == ENOTSUP || // no fs support for it
errno == EOPNOTSUPP) {
if (lseek(fdin, 0, SEEK_SET) == -1) {
res = false;
break;