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authordim <dim@FreeBSD.org>2015-07-08 18:43:55 +0000
committerdim <dim@FreeBSD.org>2015-07-08 18:43:55 +0000
commit91db3ac96dc3ffb6a6f9079ef98cfe0b9af0f05a (patch)
treef1fa334feb87f7c8ece7d10caf385b2726e20c57 /contrib/tcpdump/print-ascii.c
parent706271a799ea439f560140f156e94c430e19fcd3 (diff)
parentc17f8bfdd50cd481c229672bc267cb3c845ace07 (diff)
downloadFreeBSD-src-91db3ac96dc3ffb6a6f9079ef98cfe0b9af0f05a.zip
FreeBSD-src-91db3ac96dc3ffb6a6f9079ef98cfe0b9af0f05a.tar.gz
Merge ^/head r285153 through r285283.
Diffstat (limited to 'contrib/tcpdump/print-ascii.c')
-rw-r--r--contrib/tcpdump/print-ascii.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/contrib/tcpdump/print-ascii.c b/contrib/tcpdump/print-ascii.c
index 96410da..3cefef3 100644
--- a/contrib/tcpdump/print-ascii.c
+++ b/contrib/tcpdump/print-ascii.c
@@ -57,8 +57,12 @@ void
ascii_print(netdissect_options *ndo,
const u_char *cp, u_int length)
{
+ u_int caplength;
register u_char s;
+ caplength = (ndo->ndo_snapend >= cp) ? ndo->ndo_snapend - cp : 0;
+ if (length > caplength)
+ length = caplength;
ND_PRINT((ndo, "\n"));
while (length > 0) {
s = *cp++;
@@ -89,12 +93,16 @@ void
hex_and_ascii_print_with_offset(netdissect_options *ndo, register const char *ident,
register const u_char *cp, register u_int length, register u_int oset)
{
+ u_int caplength;
register u_int i;
register int s1, s2;
register int nshorts;
char hexstuff[HEXDUMP_SHORTS_PER_LINE*HEXDUMP_HEXSTUFF_PER_SHORT+1], *hsp;
char asciistuff[ASCII_LINELENGTH+1], *asp;
+ caplength = (ndo->ndo_snapend >= cp) ? ndo->ndo_snapend - cp : 0;
+ if (length > caplength)
+ length = caplength;
nshorts = length / sizeof(u_short);
i = 0;
hsp = hexstuff; asp = asciistuff;
@@ -147,9 +155,13 @@ hex_print_with_offset(netdissect_options *ndo,
const char *ident, const u_char *cp, u_int length,
u_int oset)
{
+ u_int caplength;
register u_int i, s;
register int nshorts;
+ caplength = (ndo->ndo_snapend >= cp) ? ndo->ndo_snapend - cp : 0;
+ if (length > caplength)
+ length = caplength;
nshorts = (u_int) length / sizeof(u_short);
i = 0;
while (--nshorts >= 0) {
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