]> The Tcpdump Group git mirrors - libpcap/blobdiff - pcap-pf.c
Update config.{guess,sub}, timestamps 2023-01-01,2023-01-21
[libpcap] / pcap-pf.c
index 8e1febdc1a32ac05d315a9402588a22222f70853..bd27933eff69e312717d908b9202e1ed7fdb2c20 100644 (file)
--- a/pcap-pf.c
+++ b/pcap-pf.c
@@ -48,7 +48,6 @@ struct rtentry;
 #include <netinet/tcp.h>
 #include <netinet/tcpip.h>
 
-#include <ctype.h>
 #include <errno.h>
 #include <netdb.h>
 #include <stdio.h>
@@ -134,6 +133,9 @@ pcap_read_pf(pcap_t *pc, int cnt, pcap_handler callback, u_char *user)
                bp = pc->bp;
        /*
         * Loop through each packet.
+        *
+        * This assumes that a single buffer of packets will have
+        * <= INT_MAX packets, so the packet count doesn't overflow.
         */
        n = 0;
        pad = pc->fddipad;
@@ -158,7 +160,7 @@ pcap_read_pf(pcap_t *pc, int cnt, pcap_handler callback, u_char *user)
                        }
                }
                if (cc < sizeof(*sp)) {
-                       pcap_snprintf(pc->errbuf, sizeof(pc->errbuf),
+                       snprintf(pc->errbuf, sizeof(pc->errbuf),
                            "pf short read (%d)", cc);
                        return (-1);
                }
@@ -168,7 +170,7 @@ pcap_read_pf(pcap_t *pc, int cnt, pcap_handler callback, u_char *user)
                } else
                        sp = (struct enstamp *)bp;
                if (sp->ens_stamplen != sizeof(*sp)) {
-                       pcap_snprintf(pc->errbuf, sizeof(pc->errbuf),
+                       snprintf(pc->errbuf, sizeof(pc->errbuf),
                            "pf short stamplen (%d)",
                            sp->ens_stamplen);
                        return (-1);
@@ -257,7 +259,7 @@ pcap_stats_pf(pcap_t *p, struct pcap_stat *ps)
         *      full.
         *
         *      "ps_ifdrop" counts packets dropped by the network
-        *      inteface (regardless of whether they would have passed
+        *      interface (regardless of whether they would have passed
         *      the input filter, of course).
         *
         * If packet filtering is not being done in the kernel:
@@ -269,7 +271,7 @@ pcap_stats_pf(pcap_t *p, struct pcap_stat *ps)
         *      the userland filter.
         *
         *      "ps_ifdrop" counts packets dropped by the network
-        *      inteface (regardless of whether they would have passed
+        *      interface (regardless of whether they would have passed
         *      the input filter, of course).
         *
         * These statistics don't include packets not yet read from
@@ -327,7 +329,7 @@ pcap_activate_pf(pcap_t *p)
                p->fd = pfopen(p->opt.device, O_RDONLY);
        if (p->fd < 0) {
                if (errno == EACCES) {
-                       pcap_snprintf(p->errbuf, PCAP_ERRBUF_SIZE,
+                       snprintf(p->errbuf, PCAP_ERRBUF_SIZE,
                            "pf open: %s: Permission denied\n"
 "your system may not be properly configured; see the packetfilter(4) man page",
                            p->opt.device);
@@ -460,7 +462,7 @@ pcap_activate_pf(pcap_t *p)
                 * framing", there's not much we can do, as that
                 * doesn't specify a particular type of header.
                 */
-               pcap_snprintf(p->errbuf, PCAP_ERRBUF_SIZE,
+               snprintf(p->errbuf, PCAP_ERRBUF_SIZE,
                    "unknown data-link type %u", devparams.end_dev_type);
                err = PCAP_ERROR;
                goto bad;
@@ -536,7 +538,7 @@ pcap_create_interface(const char *device _U_, char *ebuf)
 {
        pcap_t *p;
 
-       p = pcap_create_common(ebuf, sizeof (struct pcap_pf));
+       p = PCAP_CREATE_COMMON(ebuf, struct pcap_pf);
        if (p == NULL)
                return (NULL);