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28 lines
987 B
28 lines
987 B
From 37b2dda9b1d62eb91028f6d590beddd36f7b79c8 Mon Sep 17 00:00:00 2001
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From: Nathan Samson <nathan@nathansamson.be>
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Date: Mon, 1 Feb 2016 21:37:22 +0100
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Subject: [PATCH] Modify get ip from iface method.
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This used to use a RAW socket, while now it used a DGRAM socket.
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Previously it failed with operation not permitted, while this version
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seems to work reliably.
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diff --git a/src/util.c b/src/util.c
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index 46ec5a2..426ba13 100644
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--- a/src/util.c
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+++ b/src/util.c
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@@ -174,11 +174,13 @@ get_iface_ip(const char *ifname)
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u_int32_t ip;
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/* Create a socket */
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- if ((sockd = socket(AF_INET, SOCK_RAW, htons(0x8086))) < 0) {
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+ if ((sockd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
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debug(LOG_ERR, "socket(): %s", strerror(errno));
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return NULL;
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}
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+ /* I want to get an IPv4 IP address */
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+ if_data.ifr_addr.sa_family = AF_INET;
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/* Get IP of internal interface */
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strncpy(if_data.ifr_name, ifname, 15);
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if_data.ifr_name[15] = '\0';
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