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[Qemu-devel] [PATCH 10/13] 9p: darwin: *xattr_nofollow implementations
From: |
keno |
Subject: |
[Qemu-devel] [PATCH 10/13] 9p: darwin: *xattr_nofollow implementations |
Date: |
Sat, 26 May 2018 01:23:12 -0400 |
From: Keno Fischer <address@hidden>
Signed-off-by: Keno Fischer <address@hidden>
---
hw/9pfs/9p-util.c | 49 +++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 45 insertions(+), 4 deletions(-)
diff --git a/hw/9pfs/9p-util.c b/hw/9pfs/9p-util.c
index 8cf5554..98004ac 100644
--- a/hw/9pfs/9p-util.c
+++ b/hw/9pfs/9p-util.c
@@ -17,49 +17,90 @@
ssize_t fgetxattrat_nofollow(int dirfd, const char *filename, const char *name,
void *value, size_t size)
{
- char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename);
int ret;
+#ifdef CONFIG_DARWIN
+ int fd = openat_file(dirfd, filename, O_RDONLY | O_PATH_9P_UTIL |
O_NOFOLLOW, 0);
+ if (fd == -1)
+ return -1;
+
+ ret = fgetxattr(fd, name, value, size, 0, XATTR_NOFOLLOW);
+ close_preserve_errno(fd);
+#else
+ char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename);
ret = lgetxattr(proc_path, name, value, size);
g_free(proc_path);
+#endif
return ret;
}
ssize_t fgetxattr_follow(int fd, const char *name,
void *value, size_t size)
{
+#ifdef CONFIG_DARWIN
+ return fgetxattr(fd, name, value, size, 0, 0);
+#else
return fgetxattr(fd, name, value, size);
+#endif
}
ssize_t flistxattrat_nofollow(int dirfd, const char *filename,
char *list, size_t size)
{
- char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename);
int ret;
+#ifdef CONFIG_DARWIN
+ int fd = openat_file(dirfd, filename, O_RDONLY | O_PATH_9P_UTIL |
O_NOFOLLOW, 0);
+ if (fd == -1)
+ return -1;
+
+ ret = flistxattr(fd, list, size, XATTR_NOFOLLOW);
+ close_preserve_errno(fd);
+#else
+ char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename);
ret = llistxattr(proc_path, list, size);
g_free(proc_path);
+#endif
return ret;
}
ssize_t fremovexattrat_nofollow(int dirfd, const char *filename,
const char *name)
{
- char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename);
int ret;
+#ifdef CONFIG_DARWIN
+ int fd = openat_file(dirfd, filename, O_PATH_9P_UTIL | O_NOFOLLOW, 0);
+ if (fd == -1)
+ return -1;
+
+ ret = fremovexattr(fd, name, XATTR_NOFOLLOW);
+ close_preserve_errno(fd);
+ return ret;
+#else
+ char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename);
ret = lremovexattr(proc_path, name);
g_free(proc_path);
return ret;
+#endif
}
int fsetxattrat_nofollow(int dirfd, const char *filename, const char *name,
void *value, size_t size, int flags)
{
- char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename);
int ret;
+#ifdef CONFIG_DARWIN
+ int fd = openat_file(dirfd, filename, O_PATH_9P_UTIL | O_NOFOLLOW, 0);
+ if (fd == -1)
+ return -1;
+
+ ret = fsetxattr(fd, name, value, size, 0, XATTR_NOFOLLOW);
+ close_preserve_errno(fd);
+#else
+ char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename);
ret = lsetxattr(proc_path, name, value, size, flags);
g_free(proc_path);
+#endif
return ret;
}
--
2.8.1
- [Qemu-devel] [PATCH 07/13] 9p: darwin: Properly translate AT_REMOVEDIR flag, (continued)
- [Qemu-devel] [PATCH 08/13] 9p: darwin: Ignore O_{NOATIME, DIRECT}, keno, 2018/05/26
- [Qemu-devel] [PATCH 09/13] 9p: darwin: Provide a compatibility definition for XATTR_SIZE_MAX, keno, 2018/05/26
- [Qemu-devel] [PATCH 10/13] 9p: darwin: *xattr_nofollow implementations,
keno <=
- [Qemu-devel] [PATCH 11/13] 9p: darwin: Mark mknod as unsupported, keno, 2018/05/26
- Re: [Qemu-devel] [PATCH 11/13] 9p: darwin: Mark mknod as unsupported, Greg Kurz, 2018/05/30
- Re: [Qemu-devel] [PATCH 11/13] 9p: darwin: Mark mknod as unsupported, Keno Fischer, 2018/05/31
- Re: [Qemu-devel] [PATCH 11/13] 9p: darwin: Mark mknod as unsupported, Greg Kurz, 2018/05/31
- Re: [Qemu-devel] [PATCH 11/13] 9p: darwin: Mark mknod as unsupported, Keno Fischer, 2018/05/31
- Re: [Qemu-devel] [PATCH 11/13] 9p: darwin: Mark mknod as unsupported, Keno Fischer, 2018/05/31
- Re: [Qemu-devel] [PATCH 11/13] 9p: darwin: Mark mknod as unsupported, Keno Fischer, 2018/05/31
[Qemu-devel] [PATCH 12/13] 9p: darwin: Provide a fallback implementation for utimensat, keno, 2018/05/26