1 files changed, 73 insertions, 0 deletions
diff --git a/dns/dnsmasq/files/patch-src_util.c b/dns/dnsmasq/files/patch-src_util.c
new file mode 100644
index 000000000000..a50483debfeb
--- /dev/null
+++ b/dns/dnsmasq/files/patch-src_util.c
@@ -0,0 +1,73 @@
+commit 15841f187d2b208a6113d4e2d479d3af4275bb1c
+Author: Simon Kelley <simon@thekelleys.org.uk>
+Date:   Sun Jun 22 23:04:36 2025 +0100
+
+    Fix issue with fast file-descriptor close on *BSD.
+    
+    This fixes a problem introduced in 8a5fe8ce6bb6c2bd81f237a0f4a2583722ffbd1c
+    
+    On BSD, fdescfs is normally mounted at /dev/fd. However
+    if it is NOT mounted, devfs creates a directory at /dev/fd
+    which contains (only) the file descriptors 0,1 and 2.
+    
+    Under these conditions, opendir() will succeed, and
+    if we proceed we will fail to close extant
+    file descriptors which should be closed.
+    
+    Check that there is a filesystem mounted at /dev/fd
+    by checking that the device changes between /dev/fd
+    and /dev. If if doesn't, fall back to the dumb path.
+    
+    Thanks to Roman Bogorodskiy for spotting the problem
+    and helping with diagnosis.
+
+--- src/util.c.orig	2025-03-14 15:09:35 UTC
++++ src/util.c
+@@ -34,6 +34,10 @@
+ #include <sys/utsname.h>
+ #endif
+ 
++#ifdef HAVE_BSD_NETWORK
++#include <libgen.h>
++#endif
++
+ /* SURF random number generator */
+ 
+ static u32 seed[32];
+@@ -831,9 +835,34 @@ void close_fds(long max_fd, int spare1, int spare2, in
+ #endif
+ 
+ #ifdef FDESCFS
+-  DIR *d;
++  DIR *d = NULL;
+   
+-  if ((d = opendir(FDESCFS)))
++#  ifdef HAVE_BSD_NETWORK
++  dev_t dirdev = 0;
++  char fdescfs[] = FDESCFS; /* string must be writable */
++  struct stat statbuf;
++
++  /* On BSD, fdescfs is normally mounted at /dev/fd. However
++     if it is NOT mounted, devfs creates a directory at /dev/fd
++     which contains (only) the file descriptors 0,1 and 2.
++
++     Under these conditions, opendir() will succeed, and
++     if we proceed we will fail to close extant
++     file descriptors which should be closed.
++     
++     Check that there is a filesystem mounted at /dev/fd
++     by checking that the device changes between /dev/fd
++     and /dev. If if doesn't, fall back to the dumb path. */
++  
++  if (stat(fdescfs, &statbuf) != -1)
++    dirdev = statbuf.st_dev;
++
++  if (stat(dirname(fdescfs), &statbuf) != -1 &&
++      dirdev != statbuf.st_dev)
++#  endif
++    d = opendir(FDESCFS);
++      
++  if (d)
+     {
+       struct dirent *de;
+