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deef71375c
Fix [FS#766] Intermittent SIGSEGV crash of dnsmasq-full Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
48 lines
1.4 KiB
Diff
48 lines
1.4 KiB
Diff
From 79e60e145f8a595bca5a784c00b437216d51de68 Mon Sep 17 00:00:00 2001
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From: Steven Barth <steven@midlink.org>
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Date: Mon, 13 Apr 2015 09:45:20 +0200
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Subject: [PATCH] dnssec: improve timestamp heuristic
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Signed-off-by: Steven Barth <steven@midlink.org>
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---
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src/dnssec.c | 15 +++++++++++----
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1 file changed, 11 insertions(+), 4 deletions(-)
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--- a/src/dnssec.c
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+++ b/src/dnssec.c
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@@ -462,17 +462,24 @@ static time_t timestamp_time;
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int setup_timestamp(void)
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{
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struct stat statbuf;
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+ time_t now;
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+ time_t base = 1420070400; /* 1-1-2015 */
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daemon->back_to_the_future = 0;
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if (!daemon->timestamp_file)
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return 0;
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+
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+ now = time(NULL);
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+
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+ if (!stat("/proc/self/exe", &statbuf) && difftime(statbuf.st_mtime, base) > 0)
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+ base = statbuf.st_mtime;
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if (stat(daemon->timestamp_file, &statbuf) != -1)
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{
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timestamp_time = statbuf.st_mtime;
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check_and_exit:
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- if (difftime(timestamp_time, time(0)) <= 0)
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+ if (difftime(now, base) >= 0 && difftime(timestamp_time, now) <= 0)
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{
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/* time already OK, update timestamp, and do key checking from the start. */
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if (utimes(daemon->timestamp_file, NULL) == -1)
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@@ -493,7 +500,7 @@ int setup_timestamp(void)
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close(fd);
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- timestamp_time = 1420070400; /* 1-1-2015 */
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+ timestamp_time = base; /* 1-1-2015 */
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tv[0].tv_sec = tv[1].tv_sec = timestamp_time;
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tv[0].tv_usec = tv[1].tv_usec = 0;
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if (utimes(daemon->timestamp_file, tv) == 0)
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