Protect pcap_fopen calls

[freeradius.git] / src / main / radsniff.c

diff --git a/src/main/radsniff.c b/src/main/radsniff.c
index 8607c1c..935d2ce 100644 (file)
--- a/src/main/radsniff.c
+++ b/src/main/radsniff.c
@@ -406,6 +406,13 @@ int main(int argc, char *argv[])
         */
        if (filter_stdin && (filename || dump_file)) usage(1);
 
+#ifndef HAVE_PCAP_FOPEN_OFFLINE
+       if (filter_stdin) {
+               fr_perror("-F is unsupported on this platform.");
+               return 1;
+       }
+#endif
+
        if (!pcap_filter) {
                pcap_filter = buffer;
                snprintf(buffer, sizeof(buffer), "udp port %d or %d",
@@ -463,8 +470,10 @@ int main(int argc, char *argv[])
        if (filename) {
                descr = pcap_open_offline(filename, errbuf);
 
+#ifdef HAVE_PCAP_FOPEN_OFFLINE
        } else if (filter_stdin) {
                descr = pcap_fopen_offline(stdin, errbuf);
+#endif
 
        } else if (!dev) {
                fprintf(stderr, "radsniff: No filename or device was specified.\n");
@@ -485,6 +494,8 @@ int main(int argc, char *argv[])
                        fprintf(stderr, "radsniff: Failed opening output file (%s)\n", pcap_geterr(descr));
                        exit(1);
                }
+
+#ifdef HAVE_PCAP_DUMP_FOPEN
        } else if (filter_stdin) {
                pcap_dumper = pcap_dump_fopen(descr, stdout);
                if (!pcap_dumper) {
@@ -492,6 +503,7 @@ int main(int argc, char *argv[])
                        exit(1);
                }
 
+#endif
        }
 
        /* Apply the rules */