Address the pcap_lookupdev() deprecation warning.

infrastation · infrastation · commit 3670edeec1e8 · 2024-09-19T19:36:38.000+01:00
sniffit.c:1777:5: warning: 'pcap_lookupdev' is deprecated: use
  'pcap_findalldevs' and use the first device
  [-Wdeprecated-declarations]
diff --git a/src/sniffit.c b/src/sniffit.c
@@ -1774,8 +1774,14 @@ int main (int argc, char *argv[])
     }
   else
     {
-    if((dev = pcap_lookupdev (ebuf)) == NULL)
+    pcap_if_t *alldevsp;
+    if (pcap_findalldevs (&alldevsp, ebuf) == PCAP_ERROR)
        fprintf (stderr,"%s\n",ebuf), exit (1);
+    if (alldevsp == NULL)
+       fprintf (stderr, "No network devices available.\n"), exit (1);
+    if ((dev = strdup (alldevsp[0].name)) == NULL)
+       perror ("strdup"), exit (1);
+    pcap_freealldevs (alldevsp);
     }
 
   for (i = 0; i < NETDEV_NR; i++)

Original file line number	Diff line number	Diff line change
`@@ -1774,8 +1774,14 @@ int main (int argc, char *argv[])`
`1774`	`1774`	`}`
`1775`	`1775`	`else`
`1776`	`1776`	`{`
`1777`		`- if((dev = pcap_lookupdev (ebuf)) == NULL)`
	`1777`	`+ pcap_if_t *alldevsp;`
	`1778`	`+ if (pcap_findalldevs (&alldevsp, ebuf) == PCAP_ERROR)`
`1778`	`1779`	`fprintf (stderr,"%s\n",ebuf), exit (1);`
	`1780`	`+ if (alldevsp == NULL)`
	`1781`	`+ fprintf (stderr, "No network devices available.\n"), exit (1);`
	`1782`	`+ if ((dev = strdup (alldevsp[0].name)) == NULL)`
	`1783`	`+ perror ("strdup"), exit (1);`
	`1784`	`+ pcap_freealldevs (alldevsp);`
`1779`	`1785`	`}`
`1780`	`1786`
`1781`	`1787`	`for (i = 0; i < NETDEV_NR; i++)`