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9pfs: fix qemu_mknodat(S_IFREG) on macOS 

mknod() on macOS does not support creating regular files, so
divert to openat_file() if S_IFREG is passed with mode argument.

Furthermore, 'man 2 mknodat' on Linux says: "Zero file type is
equivalent to type S_IFREG".

Link: https://lore.kernel.org/qemu-devel/17933734.zYzKuhC07K@silver/
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Will Cohen <wwcohen@gmail.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <3102ca936f88bc1f79d2a325e5bc68f48f54e6e3.1651228000.git.qemu_oss@crudebyte.com>
This commit is contained in:
Christian Schoenebeck 2022-04-29 12:25:05 +02:00
parent 0009df31cb
commit 096af17127
1 changed files with 9 additions and 0 deletions
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9
hw/9pfs/9p-util-darwin.c
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@ -77,6 +77,15 @@ int fsetxattrat_nofollow(int dirfd, const char *filename, const char *name,
int qemu_mknodat(int dirfd, const char *filename, mode_t mode, dev_t dev)
{
int preserved_errno, err;
if (S_ISREG(mode) || !(mode & S_IFMT)) {
int fd = openat_file(dirfd, filename, O_CREAT, mode);
if (fd == -1) {
return fd;
}
close(fd);
return 0;
}
if (!pthread_fchdir_np) {
error_report_once("pthread_fchdir_np() not available on this version of macOS");
return -ENOTSUP;