[PATCH 8/8] wrc: use sysctl instead of /proc/curproc/file on FreeBSD
Damjan Jovanovic
damjan.jov at gmail.com
Sat Oct 23 03:18:43 CDT 2021
Signed-off-by: Damjan Jovanovic <damjan.jov at gmail.com>
---
tools/wrc/wrc.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
-------------- next part --------------
diff --git a/tools/wrc/wrc.c b/tools/wrc/wrc.c
index 8cdb91195cf..b44ae6fd0e5 100644
--- a/tools/wrc/wrc.c
+++ b/tools/wrc/wrc.c
@@ -27,6 +27,11 @@
#include <assert.h>
#include <ctype.h>
#include <signal.h>
+#include <limits.h>
+#include <sys/types.h>
+#ifdef HAVE_SYS_SYSCTL_H
+# include <sys/sysctl.h>
+#endif
#include "../tools.h"
#include "wrc.h"
@@ -336,7 +341,12 @@ static void init_argv0_dir( const char *argv0 )
#if defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)
dir = realpath( "/proc/self/exe", NULL );
#elif defined (__FreeBSD__) || defined(__DragonFly__)
- dir = realpath( "/proc/curproc/file", NULL );
+ 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 ))
+ dir = realpath( path, NULL );
+ free( path );
#else
dir = realpath( argv0, NULL );
#endif
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