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-rw-r--r--miscutils/update.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/miscutils/update.c b/miscutils/update.c
index e9f496913..7279d83a8 100644
--- a/miscutils/update.c
+++ b/miscutils/update.c
@@ -72,7 +72,12 @@ extern int update_main(int argc, char **argv)
/* Become a proper daemon */
setsid();
chdir("/");
+#ifdef OPEN_MAX
for (pid = 0; pid < OPEN_MAX; pid++) close(pid);
+#else
+ /* glibc 2.1.92 requires using sysconf(_SC_OPEN_MAX) */
+ for (pid = 0; pid < sysconf(_SC_OPEN_MAX); pid++) close(pid);
+#endif
/*
* This is no longer necessary since 1.3.5x, but it will harmlessly