!395 [sync] PR-393: add sscanf adapation code for musl

From: @openeuler-sync-bot 
Reviewed-by: @duguhaotian 
Signed-off-by: @duguhaotian
This commit is contained in:
openeuler-ci-bot 2023-01-05 06:30:40 +00:00 committed by Gitee
commit 66c0b11e19
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GPG Key ID: 173E9B9CA92EEF8F
3 changed files with 42 additions and 2 deletions

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@ -0,0 +1,31 @@
From 04399ce74d89f7260474e915a978d31d62367889 Mon Sep 17 00:00:00 2001
From: zhongtao <zhongtao17@huawei.com>
Date: Wed, 4 Jan 2023 13:17:34 +0800
Subject: [PATCH] add sscanf adapation code for musl
Signed-off-by: zhongtao <zhongtao17@huawei.com>
---
src/lxc/utils.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/lxc/utils.c b/src/lxc/utils.c
index ed66935..3838f69 100644
--- a/src/lxc/utils.c
+++ b/src/lxc/utils.c
@@ -2134,7 +2134,13 @@ static proc_t *lxc_stat2proc(const char *S)
(void)memset(P, 0x00, sizeof(proc_t));
/* parse these two strings separately, skipping the leading "(". */
+ /* https://www.openwall.com/lists/musl/2013/11/15/5: musl's sscanf("%15c",cmd)
+ requires exactly 15 characters; anything shorter is a matching failure. */
+#ifdef __MUSL__
+ num = sscanf(S, "%d (%15s", &P->pid, P->cmd); /* comm[16] in kernel */
+#else
num = sscanf(S, "%d (%15c", &P->pid, P->cmd); /* comm[16] in kernel */
+#endif
if (num != 2) {
ERROR("Call sscanf error: %s", errno ? strerror(errno) : "");
free(P);
--
2.25.1

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@ -1,4 +1,4 @@
%global _release 2022102406
%global _release 2022102407
Name: lxc
Version: 4.0.3
@ -62,6 +62,7 @@ Patch0051: 0051-add-macro-to-adapt-musl-libc.patch
Patch0052: 0052-add-lxc-attach-add-gids-option.patch
Patch0053: 0053-change-the-suffi-parameter-in-lxc-attach-help-output.patch
Patch0054: 0054-rollback-strprint-code-modified.patch
Patch0055: 0055-add-sscanf-adapation-code-for-musl.patch
BuildRequires: systemd-units git libtool graphviz docbook2X doxygen chrpath
BuildRequires: pkgconfig(libseccomp)
@ -242,6 +243,12 @@ make check
%endif
%changelog
* Wed Jan 04 2023 zhongtao<zhongtao17@huawei.com> - 4.0.3-2022102407
- Type:bugfix
- ID:NA
- SUG:NA
- DESC: add sscanf adapation code for musl
* Mon Dec 26 2022 zhangxiaoyu<zhangxiaoyu58@huawei.com> - 4.0.3-2022102406
- Type:bugfix
- ID:NA

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@ -50,4 +50,6 @@
0050-lxc-Add-sw64-architecture.patch
0051-add-macro-to-adapt-musl-libc.patch
0052-add-lxc-attach-add-gids-option.patch
0053-change-the-suffi-parameter-in-lxc-attach-help-output.patch
0053-change-the-suffi-parameter-in-lxc-attach-help-output.patch
0054-rollback-strprint-code-modified.patch
0055-add-sscanf-adapation-code-for-musl.patch