xref: /third_party/glib/patch/backport-Revert-Handling-collision-between-standard-i-o-filedescriptors-and-newly-created-ones.patch (revision b5975d6b)

From dad97d24d578dbefbebb41829b0ffb9e783cac7b Mon Sep 17 00:00:00 2001
From: Ray Strode <rstrode@redhat.com>
Date: Fri, 28 Oct 2022 11:21:04 -0400
Subject: [PATCH] Revert "Handling collision between standard i/o file
 descriptors and newly created ones"

g_unix_open_pipe tries to avoid the standard io fd range
when getting pipe fds. This turns out to be a bad idea because
certain buggy programs rely on it using that range.

This reverts commit d9ba6150909818beb05573f54f26232063492c5b

Closes: #2795
Reopens: #16

Conflict:NA
Reference:https://gitlab.gnome.org/GNOME/glib/-/commit/dad97d24d578dbefbebb41829b0ffb9e783cac7b

---
 glib/glib-unix.c | 24 ------------------------
 1 file changed, 24 deletions(-)

diff --git a/glib/glib-unix.c b/glib/glib-unix.c
index 4710c51168..bc152d7663 100644
--- a/glib/glib-unix.c
+++ b/glib/glib-unix.c
@@ -108,17 +108,6 @@ g_unix_open_pipe (int     *fds,
     ecode = pipe2 (fds, pipe2_flags);
     if (ecode == -1 && errno != ENOSYS)
       return g_unix_set_error_from_errno (error, errno);
-    /* Don't reassign pipes to stdin, stdout, stderr if closed meanwhile */
-    else if (fds[0] < 3 || fds[1] < 3)
-      {
-        int old_fds[2] = { fds[0], fds[1] };
-        gboolean result = g_unix_open_pipe (fds, flags, error);
-        close (old_fds[0]);
-        close (old_fds[1]);
-
-        if (!result)
-          g_unix_set_error_from_errno (error, errno);
-      }
     else if (ecode == 0)
       return TRUE;
     /* Fall through on -ENOSYS, we must be running on an old kernel */
@@ -127,19 +116,6 @@ g_unix_open_pipe (int     *fds,
   ecode = pipe (fds);
   if (ecode == -1)
     return g_unix_set_error_from_errno (error, errno);
-  /* Don't reassign pipes to stdin, stdout, stderr if closed meanwhile */
-  else if (fds[0] < 3 || fds[1] < 3)
-    {
-      int old_fds[2] = { fds[0], fds[1] };
-      gboolean result = g_unix_open_pipe (fds, flags, error);
-      close (old_fds[0]);
-      close (old_fds[1]);
-
-      if (!result)
-        g_unix_set_error_from_errno (error, errno);
-
-      return result;
-    }
 
   if (flags == 0)
     return TRUE;
-- 
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