From: Ben Gras <ben@minix3.org>
Date: Mon, 7 Nov 2005 13:15:09 +0000 (+0000)
Subject: "forward compatible" hack for lstat() - make new binaries work on old
X-Git-Tag: v3.1.2a~515
X-Git-Url: http://zhaoyanbai.com/repos/man.arpaname.html?a=commitdiff_plain;h=c6412ae3423222b00ed4900be75096c94b160f36;p=minix.git

"forward compatible" hack for lstat() - make new binaries work on old
systems
---

diff --git a/lib/posix/_lstat.c b/lib/posix/_lstat.c
index bdde67c52..bb2108fe8 100644
--- a/lib/posix/_lstat.c
+++ b/lib/posix/_lstat.c
@@ -8,9 +8,12 @@ _CONST char *name;
 struct stat *buffer;
 {
   message m;
+  int r;
 
   m.m1_i1 = strlen(name) + 1;
   m.m1_p1 = (char *) name;
   m.m1_p2 = (char *) buffer;
-  return(_syscall(FS, LSTAT, &m));
+  if((r = _syscall(FS, LSTAT, &m)) >= 0 || errno != ENOSYS)
+     return r;
+  return _stat(name, buffer);
 }