From 423169e635c222e549e3c8d989d3f1f3576c117d Mon Sep 17 00:00:00 2001
From: Daniel Lange <DLange@git.local>
Date: Thu, 10 Jun 2021 07:37:09 +0200
Subject: Some fixes for Bullseye htop 3.0.5-x

---
 debian/patches/0100-update-uid-on-change.patch | 62 ++++++++++++++++++++++++++
 debian/patches/0101-drop-o-path-usage.patch    | 38 ++++++++++++++++
 debian/patches/series                          |  2 +
 3 files changed, 102 insertions(+)
 create mode 100644 debian/patches/0100-update-uid-on-change.patch
 create mode 100644 debian/patches/0101-drop-o-path-usage.patch

diff --git a/debian/patches/0100-update-uid-on-change.patch b/debian/patches/0100-update-uid-on-change.patch
new file mode 100644
index 0000000..04a7d8f
--- /dev/null
+++ b/debian/patches/0100-update-uid-on-change.patch
@@ -0,0 +1,62 @@
+From ca8ae00cbe03924f05903ec432f91c73893472d4 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Christian=20G=C3=B6ttsche?= <cgzones@googlemail.com>
+Date: Wed, 9 Jun 2021 11:13:39 +0200
+Subject: [PATCH] Linux: update process uid on change
+
+Always check if the user of a process changed, e.g. by using setuid(2).
+---
+ Process.c                |  1 +
+ linux/LinuxProcessList.c | 17 ++++++++++-------
+ 2 files changed, 11 insertions(+), 7 deletions(-)
+
+--- a/linux/LinuxProcessList.c
++++ b/linux/LinuxProcessList.c
+@@ -366,7 +366,7 @@
+ }
+ 
+ 
+-static bool LinuxProcessList_statProcessDir(Process* process, openat_arg_t procFd) {
++static bool LinuxProcessList_updateUser(ProcessList* processList, Process* process, openat_arg_t procFd) {
+    struct stat sstat;
+ #ifdef HAVE_OPENAT
+    int statok = fstat(procFd, &sstat);
+@@ -375,7 +375,12 @@
+ #endif
+    if (statok == -1)
+       return false;
+-   process->st_uid = sstat.st_uid;
++
++   if (process->st_uid != sstat.st_uid) {
++      process->st_uid = sstat.st_uid;
++      process->user = UsersTable_getRef(processList->usersTable, sstat.st_uid);
++   }
++
+    return true;
+ }
+ 
+@@ -1383,12 +1388,10 @@
+       proc->percent_cpu = CLAMP(percent_cpu, 0.0F, cpus * 100.0F);
+       proc->percent_mem = proc->m_resident / (double)(pl->totalMem) * 100.0;
+ 
+-      if (!preExisting) {
+-
+-         if (! LinuxProcessList_statProcessDir(proc, procFd))
+-            goto errorReadingProcess;
++      if (! LinuxProcessList_updateUser(pl, proc, procFd))
++         goto errorReadingProcess;
+ 
+-         proc->user = UsersTable_getRef(pl->usersTable, proc->st_uid);
++      if (!preExisting) {
+ 
+          #ifdef HAVE_OPENVZ
+          if (settings->flags & PROCESS_FLAG_LINUX_OPENVZ) {
+--- a/Process.c
++++ b/Process.c
+@@ -436,6 +436,7 @@
+    this->show = true;
+    this->updated = false;
+    this->basenameOffset = -1;
++   this->st_uid = (uid_t)-1;
+ 
+    if (Process_getuid == (uid_t)-1) {
+       Process_getuid = getuid();
diff --git a/debian/patches/0101-drop-o-path-usage.patch b/debian/patches/0101-drop-o-path-usage.patch
new file mode 100644
index 0000000..969d727
--- /dev/null
+++ b/debian/patches/0101-drop-o-path-usage.patch
@@ -0,0 +1,38 @@
+From d8e81ab747e96cb687e8d6981ef4a0fb58050884 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Christian=20G=C3=B6ttsche?= <cgzones@googlemail.com>
+Date: Wed, 9 Jun 2021 10:55:22 +0200
+Subject: [PATCH] Linux: drop O_PATH usage
+
+O_PATH is available since Linux 2.6.39, but we are using fstat(2) on the
+returned file descriptor in LinuxProcessList_statProcessDir(), which
+is only supported since Linux 3.6.
+
+Fixes #534
+---
+ linux/LinuxProcessList.c | 8 +-------
+ 1 file changed, 1 insertion(+), 7 deletions(-)
+
+--- a/linux/LinuxProcessList.c
++++ b/linux/LinuxProcessList.c
+@@ -58,12 +58,6 @@
+ #endif
+ 
+ 
+-// CentOS 6's kernel doesn't provide a definition of O_PATH
+-// based on definition taken from uapi/asm-generic/fcnth.h in Linux kernel tree
+-#ifndef O_PATH
+-# define O_PATH 010000000
+-#endif
+-
+ static long long btime = -1;
+ 
+ static long jiffy;
+@@ -1313,7 +1307,7 @@
+       proc->tgid = parent ? parent->pid : pid;
+ 
+ #ifdef HAVE_OPENAT
+-      int procFd = openat(dirFd, entry->d_name, O_PATH | O_DIRECTORY | O_NOFOLLOW);
++      int procFd = openat(dirFd, entry->d_name, O_RDONLY | O_DIRECTORY | O_NOFOLLOW);
+       if (procFd < 0)
+          goto errorReadingProcess;
+ #else
diff --git a/debian/patches/series b/debian/patches/series
index 9ab8f3d..f8e08e4 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -14,3 +14,5 @@
 0014-fix-zfs-coloring.patch
 0015-clean-infoscreen-before-new-scan.patch
 0016-fix-div-by-zero-zfscompressedarcmeter.patch
+0100-update-uid-on-change.patch
+0101-drop-o-path-usage.patch
-- 
cgit v1.2.3