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From 7fd4eb9313154f3b3458ea07d6a12f0be26d2a4e Mon Sep 17 00:00:00 2001
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From: Lee Duncan <lduncan@suse.com>
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Date: Wed, 21 Mar 2018 16:43:33 -0700
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Subject: [PATCH] Use correct size when copying nic name.
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The incorrect length was being used to copy
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the NIC name.
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Found by gcc-8, which gave this error:
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> [ 19s] nic_utils.c: In function 'nic_util_enable_disable_multicast':
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> [ 19s] nic_utils.c:308:9: warning: argument to 'sizeof' in 'strncpy'
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> call is the same expression as the source; did you mean to
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> use the size of the destination? [-Wsizeof-pointer-memaccess]
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> [ 19s] sizeof(nic->eth_device_name));
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> [ 19s] ^
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---
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iscsiuio/src/unix/nic_utils.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/iscsiuio/src/unix/nic_utils.c b/iscsiuio/src/unix/nic_utils.c
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index e2f294389840..786f2a4d5b5d 100644
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--- a/iscsiuio/src/unix/nic_utils.c
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+++ b/iscsiuio/src/unix/nic_utils.c
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@@ -305,7 +305,7 @@ static int nic_util_enable_disable_multicast(nic_t *nic, uint32_t cmd)
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/* Prepare the request */
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memset(&ifr, 0, sizeof(ifr));
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strncpy(ifr.ifr_name, nic->eth_device_name,
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- sizeof(nic->eth_device_name));
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+ sizeof(ifr.ifr_name));
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memcpy(ifr.ifr_hwaddr.sa_data, multicast_addr.addr, ETH_ALEN);
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fd = socket(AF_INET, SOCK_DGRAM, 0);
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--
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2.17.2
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