Author: jlh
Date: Tue May 8 19:43:32 2012
New Revision: 235142
URL: http://svn.freebsd.org/changeset/base/235142
Log:
Always define LD_32_PRELOAD so it works for 32 bits binaries on
64 bits platforms. Let rtld(1) decide if it needs to honor it
or not.
While here, fix a small bug in error reporting when asprintf(3)
returns an error.
Submitted by: kib
Reviewed by: kib (mentor)
MFC after: 1 week
Modified:
head/usr.bin/stdbuf/stdbuf.c
Modified: head/usr.bin/stdbuf/stdbuf.c
==============================================================================
--- head/usr.bin/stdbuf/stdbuf.c Tue May 8 19:33:31 2012
(r235141)
+++ head/usr.bin/stdbuf/stdbuf.c Tue May 8 19:43:32 2012
(r235142)
@@ -32,6 +32,7 @@
#include <unistd.h>
#define LIBSTDBUF "/usr/lib/libstdbuf.so"
+#define LIBSTDBUF32 "/usr/lib32/libstdbuf.so"
extern char *__progname;
@@ -92,7 +93,17 @@ main(int argc, char *argv[])
LIBSTDBUF);
if (i < 0 || putenv(preload1) == -1)
- warn("Failed to set environment variable: %s", preload1);
+ warn("Failed to set environment variable: LD_PRELOAD");
+
+ preload0 = getenv("LD_32_PRELOAD");
+ if (preload0 == NULL)
+ i = asprintf(&preload1, "LD_32_PRELOAD=" LIBSTDBUF32);
+ else
+ i = asprintf(&preload1, "LD_32_PRELOAD=%s:%s", preload0,
+ LIBSTDBUF32);
+
+ if (i < 0 || putenv(preload1) == -1)
+ warn("Failed to set environment variable: LD_32_PRELOAD");
execvp(argv[0], argv);
err(2, "%s", argv[0]);
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