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package/libpam-tacplus: fix compilation with GCC 8
GCC 8 demands that the size of the string copied by strncpy be smaller than the size of the destination to keep space for the trailibg '\0'. This causes a compilation error in pam_tacplus, so add a patch already sent uptream to fix it. Fixes: http://autobuild.buildroot.net/results/da6d150e470046c03c5f7463de045604e15e4a30/ Signed-off-by: Carlos Santos <casantos@datacom.com.br> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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From 4c9635b03d0acf140f65004be9d4822297ee5a35 Mon Sep 17 00:00:00 2001
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From: Carlos Santos <casantos@datacom.com.br>
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Date: Mon, 10 Dec 2018 17:27:16 -0200
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Subject: [PATCH] Fix compilation of tacc.c with GCC 8
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GCC 8 demands that the size of the string copied by strncpy be smaller
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than the size of the destination to keep space for the trailibg '\0':
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tacc.c:378:3: error: 'strncpy' specified bound 4 equals destination size [-Werror=stringop-truncation]
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strncpy(utmpx.ut_id, tty + C_STRLEN("tty"), sizeof(utmpx.ut_id));
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Ensure that no more than sizeof(utmpx.ut_id) - 1 characters are copied
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and that a trailing '\0' is stored.
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Fixes:
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http://autobuild.buildroot.net/results/da6d150e470046c03c5f7463de045604e15e4a30/
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Signed-off-by: Carlos Santos <casantos@datacom.com.br>
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---
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tacc.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/tacc.c b/tacc.c
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index f61e2d7..3c1a40c 100644
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--- a/tacc.c
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+++ b/tacc.c
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@@ -375,7 +375,8 @@ int main(int argc, char **argv) {
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utmpx.ut_type = USER_PROCESS;
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utmpx.ut_pid = getpid();
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xstrcpy(utmpx.ut_line, tty, sizeof(utmpx.ut_line));
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- strncpy(utmpx.ut_id, tty + C_STRLEN("tty"), sizeof(utmpx.ut_id));
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+ strncpy(utmpx.ut_id, tty + C_STRLEN("tty"), sizeof(utmpx.ut_id) - 1);
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+ utmpx.ut_id[sizeof(utmpx.ut_id) - 1] = '\0';
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xstrcpy(utmpx.ut_host, "dialup", sizeof(utmpx.ut_host));
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utmpx.ut_tv.tv_sec = tv.tv_sec;
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utmpx.ut_tv.tv_usec = tv.tv_usec;
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--
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2.14.5
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