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When compiling OpenWRT on a compressed btrfs volume the build fails in libtool. The file `libltdl/config/ltmain.m4sh` from `libtool-2.4.2.tar.xz` is missing write permissions, therefore patch falls back to copying the file and patching that. During this patch tries to preserve all file attribute on the new copy. However the attribute `btrfs.compression` is privileged and btrfs return EACCES. While patch ignores multiple other error codes during the copy of xattr copy it is not prepared for EACCES and aborts. EACCES should be ignored the same way as the other errors. Build log: ``` ... Applying ./patches/000-relocatable.patch using plaintext: patching file libltdl/config/general.m4sh patching file libtoolize.in patching file libtoolize.m4sh patching file libltdl/m4/libtool.m4 Applying ./patches/100-libdir-fixes.patch using plaintext: patching file libltdl/config/ltmain.m4sh File libltdl/config/ltmain.sh is read-only; trying to patch anyway patching file libltdl/config/ltmain.sh patch: setting attribute btrfs.compression for btrfs.compression: Permission denied Patch failed! Please fix ./patches/100-libdir-fixes.patch! ``` Link: https://lists.gnu.org/archive/html/bug-patch/2022-11/msg00000.html Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
From f42cbe1a91a3a6f79d1eec594ce7c72aec79179b Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= <thomas@t-8ch.de>
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Date: Wed, 9 Nov 2022 05:08:22 +0100
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Subject: [PATCH] don't fail hard on EACCES when copying xattrs
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On btrfs the xattr "btrfs.compressed" requires privileges to set,
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otherwise EACCES is returned.
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When patch tries to do copy this attribute it receives the error and
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aborts.
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---
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src/util.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/src/util.c
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+++ b/src/util.c
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@@ -182,7 +182,7 @@ copy_attr_error (struct error_context *c
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int err = errno;
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va_list ap;
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- if (err != ENOSYS && err != ENOTSUP && err != EPERM)
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+ if (err != ENOSYS && err != ENOTSUP && err != EPERM && err != EACCES)
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{
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/* use verror module to print error message */
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va_start (ap, fmt);
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@@ -284,7 +284,7 @@ set_file_attributes (char const *to, enu
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}
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if (attr & FA_XATTRS)
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if (copy_attr (from, to) != 0
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- && errno != ENOSYS && errno != ENOTSUP && errno != EPERM)
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+ && errno != ENOSYS && errno != ENOTSUP && errno != EPERM && errno != EACCES)
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fatal_exit (0);
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if (attr & FA_MODE)
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{
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