mirror of https://github.com/hak5/openwrt.git
42 lines
1.4 KiB
Diff
42 lines
1.4 KiB
Diff
From 8d7a3f40c8de414122eb8eb2131291782ee8ed15 Mon Sep 17 00:00:00 2001
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From: Daniel Sabogal <dsabogalcc@gmail.com>
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Date: Fri, 23 Sep 2016 21:10:07 -0400
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Subject: fix getservby*_r result pointer value on error
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this is a clone of the fix to the gethostby*_r functions in
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commit fe82bb9b921be34370e6b71a1c6f062c20999ae0. the man pages
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document that the getservby*_r functions set this pointer to
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NULL if there was an error or if no record was found.
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---
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src/network/getservbyname_r.c | 2 ++
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src/network/getservbyport_r.c | 1 +
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2 files changed, 3 insertions(+)
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diff --git a/src/network/getservbyname_r.c b/src/network/getservbyname_r.c
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index 056c2f3..ad3d616 100644
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--- a/src/network/getservbyname_r.c
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+++ b/src/network/getservbyname_r.c
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@@ -15,6 +15,8 @@ int getservbyname_r(const char *name, const char *prots,
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struct service servs[MAXSERVS];
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int cnt, proto, align;
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+ *res = 0;
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+
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/* Align buffer */
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align = -(uintptr_t)buf & ALIGN-1;
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if (buflen < 2*sizeof(char *)+align)
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diff --git a/src/network/getservbyport_r.c b/src/network/getservbyport_r.c
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index a0a7cae..0ae0e41 100644
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--- a/src/network/getservbyport_r.c
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+++ b/src/network/getservbyport_r.c
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@@ -20,6 +20,7 @@ int getservbyport_r(int port, const char *prots,
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if (r) r = getservbyport_r(port, "udp", se, buf, buflen, res);
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return r;
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}
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+ *res = 0;
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/* Align buffer */
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i = (uintptr_t)buf & sizeof(char *)-1;
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--
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cgit v0.11.2
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