Translate UDP/1700 as RADIUS

[tcpdump] / tcpdump.c

diff --git a/tcpdump.c b/tcpdump.c
index 521196ba2da48d3ad20b9e5fe71e4bbbf448f3f6..de8f63307d65c640e4ff88fe21d090624ace9f93 100644 (file)
--- a/tcpdump.c
+++ b/tcpdump.c
@@ -1884,17 +1884,31 @@ info(register int verbose)
 }
 
 #if defined(HAVE_FORK) || defined(HAVE_VFORK)
+#ifdef HAVE_FORK
+#define fork_subprocess() fork()
+#else
+#define fork_subprocess() vfork()
+#endif
 static void
 compress_savefile(const char *filename)
 {
-# ifdef HAVE_FORK
-       if (fork())
-# else
-       if (vfork())
-# endif
+       pid_t child;
+
+       child = fork_subprocess();
+       if (child == -1) {
+               fprintf(stderr,
+                       "compress_savefile: fork failed: %s\n",
+                       pcap_strerror(errno));
                return;
+       }
+       if (child != 0) {
+               /* Parent process. */
+               return;
+       }
+
        /*
-        * Set to lowest priority so that this doesn't disturb the capture
+        * Child process.
+        * Set to lowest priority so that this doesn't disturb the capture.
         */
 #ifdef NZERO
        setpriority(PRIO_PROCESS, 0, NZERO - 1);
@@ -1903,15 +1917,15 @@ compress_savefile(const char *filename)
 #endif
        if (execlp(zflag, zflag, filename, (char *)NULL) == -1)
                fprintf(stderr,
-                       "compress_savefile:execlp(%s, %s): %s\n",
+                       "compress_savefile: execlp(%s, %s) failed: %s\n",
                        zflag,
                        filename,
                        pcap_strerror(errno));
-# ifdef HAVE_FORK
+#ifdef HAVE_FORK
        exit(1);
-# else
+#else
        _exit(1);
-# endif
+#endif
 }
 #else  /* HAVE_FORK && HAVE_VFORK */
 static void