tcpdump now accepts SIGUSR1 as a signal to print the statistics on systems that does...

diff --git a/tcpdump.c b/tcpdump.c
index ac35b2b3490986d3d8c08b16a1478f62e6a55a6f..587ed32170ac925df013cd2d8cb8473737e71003 100644 (file)
--- a/tcpdump.c
+++ b/tcpdump.c
@@ -87,6 +87,12 @@ extern int SIZE_BUF;
 #define NAME_MAX 255
 #endif
 
+#ifdef SIGINFO
+#define SIGNAL_REQ_INFO SIGINFO
+#elif SIGUSR1
+#define SIGNAL_REQ_INFO SIGUSR1
+#endif
+
 netdissect_options Gndo;
 netdissect_options *gndo = &Gndo;
 
@@ -119,7 +125,7 @@ static void ndo_error(netdissect_options *ndo, const char *fmt, ...)
      __attribute__ ((noreturn, format (printf, 2, 3)));
 static void ndo_warning(netdissect_options *ndo, const char *fmt, ...);
 
-#ifdef SIGINFO
+#ifdef SIGNAL_REQ_INFO
 RETSIGTYPE requestinfo(int);
 #endif
 
@@ -1349,13 +1355,13 @@ main(int argc, char **argv)
                pcap_userdata = (u_char *)&printinfo;
        }
 
-#ifdef SIGINFO
+#ifdef SIGNAL_REQ_INFO
        /*
         * We can't get statistics when reading from a file rather
         * than capturing from a device.
         */
        if (RFileName == NULL)
-               (void)setsignal(SIGINFO, requestinfo);
+               (void)setsignal(SIGNAL_REQ_INFO, requestinfo);
 #endif
 
        if (vflag > 0 && WFileName) {
@@ -1844,7 +1850,7 @@ default_print(const u_char *bp, u_int length)
        ndo_default_print(gndo, bp, length);
 }
 
-#ifdef SIGINFO
+#ifdef SIGNAL_REQ_INFO
 RETSIGTYPE requestinfo(int signo _U_)
 {
        if (infodelay)