X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/7d1f7c8db46f87de584bbcdf118d99d02eba57b9..f662dad02b51b595592df9fa6b0884e438cef9a3:/tcpdump.c diff --git a/tcpdump.c b/tcpdump.c index a347bc2c..88295d84 100644 --- a/tcpdump.c +++ b/tcpdump.c @@ -1244,8 +1244,10 @@ main(int argc, char **argv) (void)setsignal(SIGPIPE, cleanup); (void)setsignal(SIGTERM, cleanup); (void)setsignal(SIGINT, cleanup); - (void)setsignal(SIGCHLD, child_cleanup); #endif /* WIN32 */ +#if defined(HAVE_FORK) || defined(HAVE_VFORK) + (void)setsignal(SIGCHLD, child_cleanup); +#endif /* Cooperate with nohup(1) */ #ifndef WIN32 if ((oldhandler = setsignal(SIGHUP, cleanup)) != SIG_DFL) @@ -1458,13 +1460,13 @@ cleanup(int signo _U_) On windows, we do not use a fork, so we do not care less about waiting a child processes to die */ -#ifndef WIN32 +#if defined(HAVE_FORK) || defined(HAVE_VFORK) static RETSIGTYPE child_cleanup(int signo _U_) { wait(NULL); } -#endif /* WIN32 */ +#endif /* HAVE_FORK && HAVE_VFORK */ static void info(register int verbose) @@ -1485,34 +1487,41 @@ info(register int verbose) if (!verbose) fprintf(stderr, "%s: ", program_name); - (void)fprintf(stderr, "%u packets captured", packets_captured); + (void)fprintf(stderr, "%u packet%s captured", packets_captured, + PLURAL_SUFFIX(packets_captured)); if (!verbose) fputs(", ", stderr); else putc('\n', stderr); - (void)fprintf(stderr, "%u packets received by filter", stat.ps_recv); + (void)fprintf(stderr, "%u packet%s received by filter", stat.ps_recv, + PLURAL_SUFFIX(stat.ps_recv)); if (!verbose) fputs(", ", stderr); else putc('\n', stderr); - (void)fprintf(stderr, "%u packets dropped by kernel", stat.ps_drop); + (void)fprintf(stderr, "%u packet%s dropped by kernel", stat.ps_drop, + PLURAL_SUFFIX(stat.ps_drop)); if (stat.ps_ifdrop != 0) { if (!verbose) fputs(", ", stderr); else putc('\n', stderr); - (void)fprintf(stderr, "%u packets dropped by interface\n", - stat.ps_ifdrop); + (void)fprintf(stderr, "%u packet%s dropped by interface\n", + stat.ps_ifdrop, PLURAL_SUFFIX(stat.ps_ifdrop)); } else putc('\n', stderr); infoprint = 0; } -#ifndef WIN32 +#if defined(HAVE_FORK) || defined(HAVE_VFORK) static void compress_savefile(const char *filename) { +# ifdef HAVE_FORK if (fork()) +# else + if (vfork()) +# endif return; /* * Set to lowest priority so that this doesn't disturb the capture @@ -1528,15 +1537,20 @@ compress_savefile(const char *filename) zflag, filename, strerror(errno)); +# ifdef HAVE_FORK + exit(1); +# else + _exit(1); +# endif } -#else /* WIN32 */ +#else /* HAVE_FORK && HAVE_VFORK */ static void compress_savefile(const char *filename) { fprintf(stderr, - "compress_savefile failed. Functionality not implemented under windows\n"); + "compress_savefile failed. Functionality not implemented under your system\n"); } -#endif /* WIN32 */ +#endif /* HAVE_FORK && HAVE_VFORK */ static void dump_packet_and_trunc(u_char *user, const struct pcap_pkthdr *h, const u_char *sp) @@ -1706,6 +1720,11 @@ print_packet(u_char *user, const struct pcap_pkthdr *h, const u_char *sp) hdrlen = (*print_info->p.printer)(h, sp); } + /* + * Restore the original snapend, as a printer might have + * changed it. + */ + snapend = sp + h->caplen; if (Xflag) { /* * Print the raw packet data in hex and ASCII.