diff options
Diffstat (limited to 'util-print.c')
| -rw-r--r-- | util-print.c | 67 |
1 files changed, 37 insertions, 30 deletions
diff --git a/util-print.c b/util-print.c index 0548337..85ec24a 100644 --- a/util-print.c +++ b/util-print.c @@ -35,17 +35,12 @@ * FOR A PARTICULAR PURPOSE. */ -#ifdef HAVE_CONFIG_H #include <config.h> -#endif #include "netdissect-stdinc.h" #include <sys/stat.h> -#ifdef HAVE_FCNTL_H -#include <fcntl.h> -#endif #include <stdio.h> #include <stdarg.h> #include <stdlib.h> @@ -172,6 +167,23 @@ nd_printn(netdissect_options *ndo, } /* + * Print a counted filename (or other ASCII string), part of + * the packet buffer, filtering out non-printable characters. + * Stop if truncated (via GET_U_1/longjmp) or after n bytes, + * whichever is first. + * The suffix comes from: j:longJmp, n:after N bytes. + */ +void +nd_printjn(netdissect_options *ndo, const u_char *s, u_int n) +{ + while (n > 0) { + fn_print_char(ndo, GET_U_1(s)); + n--; + s++; + } +} + +/* * Print a null-padded filename (or other ASCII string), part of * the packet buffer, filtering out non-printable characters. * Stop if truncated (via GET_U_1/longjmp) or after n bytes or before @@ -197,17 +209,17 @@ nd_printjnp(netdissect_options *ndo, const u_char *s, u_int n) * Print the timestamp .FRAC part (Microseconds/nanoseconds) */ static void -ts_frac_print(netdissect_options *ndo, long usec) +ts_frac_print(netdissect_options *ndo, const struct timeval *tv) { #ifdef HAVE_PCAP_SET_TSTAMP_PRECISION switch (ndo->ndo_tstamp_precision) { case PCAP_TSTAMP_PRECISION_MICRO: - ND_PRINT(".%06u", (unsigned)usec); + ND_PRINT(".%06u", (unsigned)tv->tv_usec); break; case PCAP_TSTAMP_PRECISION_NANO: - ND_PRINT(".%09u", (unsigned)usec); + ND_PRINT(".%09u", (unsigned)tv->tv_usec); break; default: @@ -215,7 +227,7 @@ ts_frac_print(netdissect_options *ndo, long usec) break; } #else - ND_PRINT(".%06u", (unsigned)usec); + ND_PRINT(".%06u", (unsigned)tv->tv_usec); #endif } @@ -225,23 +237,22 @@ ts_frac_print(netdissect_options *ndo, long usec) * if date_flag == WITH_DATE print YY:MM:DD before HH:MM:SS.FRAC */ static void -ts_date_hmsfrac_print(netdissect_options *ndo, long sec, long usec, +ts_date_hmsfrac_print(netdissect_options *ndo, const struct timeval *tv, enum date_flag date_flag, enum time_flag time_flag) { - time_t Time = sec; struct tm *tm; char timebuf[32]; const char *timestr; - if ((unsigned)sec & 0x80000000) { - ND_PRINT("[Error converting time]"); + if (tv->tv_sec < 0) { + ND_PRINT("[timestamp < 1970-01-01 00:00:00 UTC]"); return; } if (time_flag == LOCAL_TIME) - tm = localtime(&Time); + tm = localtime(&tv->tv_sec); else - tm = gmtime(&Time); + tm = gmtime(&tv->tv_sec); if (date_flag == WITH_DATE) { timestr = nd_format_time(timebuf, sizeof(timebuf), @@ -252,22 +263,22 @@ ts_date_hmsfrac_print(netdissect_options *ndo, long sec, long usec, } ND_PRINT("%s", timestr); - ts_frac_print(ndo, usec); + ts_frac_print(ndo, tv); } /* * Print the timestamp - Unix timeval style, as SECS.FRAC. */ static void -ts_unix_print(netdissect_options *ndo, long sec, long usec) +ts_unix_print(netdissect_options *ndo, const struct timeval *tv) { - if ((unsigned)sec & 0x80000000) { - ND_PRINT("[Error converting time]"); + if (tv->tv_sec < 0) { + ND_PRINT("[timestamp < 1970-01-01 00:00:00 UTC]"); return; } - ND_PRINT("%u", (unsigned)sec); - ts_frac_print(ndo, usec); + ND_PRINT("%u", (unsigned)tv->tv_sec); + ts_frac_print(ndo, tv); } /* @@ -285,8 +296,7 @@ ts_print(netdissect_options *ndo, switch (ndo->ndo_tflag) { case 0: /* Default */ - ts_date_hmsfrac_print(ndo, tvp->tv_sec, tvp->tv_usec, - WITHOUT_DATE, LOCAL_TIME); + ts_date_hmsfrac_print(ndo, tvp, WITHOUT_DATE, LOCAL_TIME); ND_PRINT(" "); break; @@ -294,7 +304,7 @@ ts_print(netdissect_options *ndo, break; case 2: /* Unix timeval style */ - ts_unix_print(ndo, tvp->tv_sec, tvp->tv_usec); + ts_unix_print(ndo, tvp); ND_PRINT(" "); break; @@ -325,8 +335,7 @@ ts_print(netdissect_options *ndo, netdissect_timevalsub(tvp, &tv_ref, &tv_result, nano_prec); ND_PRINT((negative_offset ? "-" : " ")); - ts_date_hmsfrac_print(ndo, tv_result.tv_sec, tv_result.tv_usec, - WITHOUT_DATE, UTC_TIME); + ts_date_hmsfrac_print(ndo, &tv_result, WITHOUT_DATE, UTC_TIME); ND_PRINT(" "); if (ndo->ndo_tflag == 3) @@ -334,8 +343,7 @@ ts_print(netdissect_options *ndo, break; case 4: /* Date + Default */ - ts_date_hmsfrac_print(ndo, tvp->tv_sec, tvp->tv_usec, - WITH_DATE, LOCAL_TIME); + ts_date_hmsfrac_print(ndo, tvp, WITH_DATE, LOCAL_TIME); ND_PRINT(" "); break; } @@ -814,11 +822,10 @@ print_txt_line(netdissect_options *ndo, const char *prefix, /* * All printable ASCII, but no line ending after that point - * in the buffer; treat this as if it were truncated. + * in the buffer. */ linelen = idx - startidx; ND_PRINT("%s%.*s", prefix, (int)linelen, pptr + startidx); - nd_print_trunc(ndo); return (0); print: |