[rpms/vlc] epel9-next: Backport MR #6527 to support libnfs 6+

[Adam Williamson <awilliam@redhat.com>]

            A new commit has been pushed.

            Repo   : rpms/vlc
            Branch : epel9-next
            Commit : 11c2eec2ba8f296c8db5b50bfc524b55dffce3ed
            Author : Adam Williamson <awilliam@redhat.com>
            Date   : 2025-01-23T10:20:52-08:00
            Stats  : +48/-0 in 2 file(s)
            URL    : https://src.fedoraproject.org/rpms/vlc/c/11c2eec2ba8f296c8db5b50bfc524b55dffce3ed?branch=epel9-next

            Log:
            Backport MR #6527 to support libnfs 6+

libnfs 6 changes some API we build against. This patch from
upstream adapts to the new API (while maintaining support for the
old one, so it can even be merged ahead of the libnfs bump).

Signed-off-by: Adam Williamson <awilliam@redhat.com>

---
diff --git a/6527.patch b/6527.patch
new file mode 100644
index 0000000..1c386fa
--- /dev/null
+++ b/6527.patch
@@ -0,0 +1,46 @@
+From a945944c2d50cacfacdd5b16d4ea5e7b4766a9fc Mon Sep 17 00:00:00 2001
+From: Steve Lhomme <robux4@ycbcr.xyz>
+Date: Mon, 16 Dec 2024 09:28:55 +0100
+Subject: [PATCH] nfs: fix libnfs API v2 support
+
+Introduced in libnfs 6.0.0.
+
+Co-authored-by: ronnie sahlberg <ronniesahlberg@gmail.com>
+Co-authored-by: Thomas Guillem <thomas@gllm.fr>
+---
+ modules/access/nfs.c | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/modules/access/nfs.c b/modules/access/nfs.c
+index f164cda86499..3510c3fe1f14 100644
+--- a/modules/access/nfs.c
++++ b/modules/access/nfs.c
+@@ -188,7 +188,8 @@ nfs_read_cb(int i_status, struct nfs_context *p_nfs, void *p_data,
+     else
+     {
+         p_sys->res.read.i_len = i_status;
+-        memcpy(p_sys->res.read.p_buf, p_data, i_status);
++        if (p_sys->res.read.p_buf != NULL && p_data != NULL)
++            memcpy(p_sys->res.read.p_buf, p_data, i_status);
+     }
+ }
+ 
+@@ -208,9 +209,15 @@ FileRead(stream_t *p_access, void *p_buf, size_t i_len)
+         return 0;
+ 
+     p_sys->res.read.i_len = 0;
++#ifdef LIBNFS_API_V2
++    p_sys->res.read.p_buf = NULL;
++    if (nfs_read_async(p_sys->p_nfs, p_sys->p_nfsfh, p_buf, i_len, nfs_read_cb,
++                       p_access) < 0)
++#else
+     p_sys->res.read.p_buf = p_buf;
+     if (nfs_read_async(p_sys->p_nfs, p_sys->p_nfsfh, i_len, nfs_read_cb,
+                        p_access) < 0)
++#endif
+     {
+         msg_Err(p_access, "nfs_read_async failed");
+         return 0;
+-- 
+GitLab
+

diff --git a/vlc.spec b/vlc.spec
index 0146ba1..db248bf 100644
--- a/vlc.spec
+++ b/vlc.spec
@@ -51,6 +51,8 @@ Patch:		https://code.videolan.org/videolan/vlc/-/merge_requests/6168.patch
 Patch:		https://code.videolan.org/videolan/vlc/-/merge_requests/6273.patch
 # avcodec: vaapi: support VAAPI with latest FFmpeg
 Patch:		https://code.videolan.org/videolan/vlc/-/merge_requests/6606.patch
+# nfs: fix libnfs API v2 support (rhbz#2341791)
+Patch:		https://code.videolan.org/videolan/vlc/-/merge_requests/6527.patch
 
 ## upstreamable patches