Damjan Jovanovic : ntdll: Use sysctl instead of /proc/curproc/file on FreeBSD.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 70f486c28fcc323e415b1ac88854db187bea95ab
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=70f486c28fcc323e415b1ac88854db187bea95ab

Author: Damjan Jovanovic <damjan.jov at gmail.com>
Date:   Sat Oct 23 10:15:55 2021 +0200

ntdll: Use sysctl instead of /proc/curproc/file on FreeBSD.

Signed-off-by: Damjan Jovanovic <damjan.jov at gmail.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/ntdll/unix/loader.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/dlls/ntdll/unix/loader.c b/dlls/ntdll/unix/loader.c
index 4e807744862..0542d2bc865 100644
--- a/dlls/ntdll/unix/loader.c
+++ b/dlls/ntdll/unix/loader.c
@@ -58,6 +58,10 @@
 #ifdef HAVE_SYS_WAIT_H
 #include <sys/wait.h>
 #endif
+#include <limits.h>
+#ifdef HAVE_SYS_SYSCTL_H
+# include <sys/sysctl.h>
+#endif
 #ifdef __APPLE__
 # include <CoreFoundation/CoreFoundation.h>
 # define LoadResource MacLoadResource
@@ -600,7 +604,14 @@ static void init_paths( char *argv[] )
 #if (defined(__linux__) && !defined(__ANDROID__)) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)
         bin_dir = realpath_dirname( "/proc/self/exe" );
 #elif defined (__FreeBSD__) || defined(__DragonFly__)
-        bin_dir = realpath_dirname( "/proc/curproc/file" );
+        {
+            static int pathname[] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
+            size_t path_size = PATH_MAX;
+            char *path = malloc( path_size );
+            if (path && !sysctl( pathname, sizeof(pathname)/sizeof(pathname[0]), path, &path_size, NULL, 0 ))
+                bin_dir = realpath_dirname( path );
+            free( path );
+        }
 #else
         bin_dir = realpath_dirname( argv0 );
 #endif