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authorsam <sam@FreeBSD.org>2006-09-04 20:04:42 +0000
committersam <sam@FreeBSD.org>2006-09-04 20:04:42 +0000
commit498672d44881880f8839eb7839500652b77e08b9 (patch)
tree13652f8bd7a5a6bc4657d530dd6ddfbeef554e16 /contrib/tcpdump/print-ascii.c
parent6dcc5281a5e8c0e636fcbf5736a3125dd9d14880 (diff)
downloadFreeBSD-src-498672d44881880f8839eb7839500652b77e08b9.zip
FreeBSD-src-498672d44881880f8839eb7839500652b77e08b9.tar.gz
Import of tcpdump v3.9.4
Diffstat (limited to 'contrib/tcpdump/print-ascii.c')
-rw-r--r--contrib/tcpdump/print-ascii.c94
1 files changed, 46 insertions, 48 deletions
diff --git a/contrib/tcpdump/print-ascii.c b/contrib/tcpdump/print-ascii.c
index 02be8e0..cd48edd 100644
--- a/contrib/tcpdump/print-ascii.c
+++ b/contrib/tcpdump/print-ascii.c
@@ -42,7 +42,7 @@
#ifndef lint
static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/print-ascii.c,v 1.16 2004/07/21 22:00:10 guy Exp $";
+ "@(#) $Header: /tcpdump/master/tcpdump/print-ascii.c,v 1.16.2.1 2005/07/06 20:54:49 guy Exp $";
#endif
#include <tcpdump-stdinc.h>
#include <stdio.h>
@@ -57,78 +57,74 @@ static const char rcsid[] _U_ =
(HEXDUMP_HEXSTUFF_PER_SHORT * HEXDUMP_SHORTS_PER_LINE)
void
-ascii_print_with_offset(register const char *ident, register const u_char *cp, register u_int length,
- register u_int oset)
+ascii_print(register const u_char *cp, register u_int length)
+{
+ register int s;
+
+ putchar('\n');
+ while (length > 0) {
+ s = *cp++;
+ length--;
+ if (!isgraph(s) &&
+ (s != '\t' && s != ' ' && s != '\n' && s != '\r'))
+ putchar('.');
+ else
+ putchar(s);
+ }
+}
+
+void
+hex_and_ascii_print_with_offset(register const char *ident,
+ register const u_char *cp, register u_int length, register u_int oset)
{
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;
- u_int maxlength = (Aflag ? ASCII_LINELENGTH : HEXDUMP_SHORTS_PER_LINE);
nshorts = length / sizeof(u_short);
i = 0;
hsp = hexstuff; asp = asciistuff;
- if (Aflag) *(asp++) = '\n';
while (--nshorts >= 0) {
s1 = *cp++;
s2 = *cp++;
- if (Aflag) {
- i += 2;
- *(asp++) = (isgraph(s1) ? s1 : (s1 != '\t' && s1 != ' ' && s1 != '\n' && s1 != '\r' ? '.' : s1) );
- *(asp++) = (isgraph(s2) ? s2 : (s2 != '\t' && s2 != ' ' && s2 != '\n' && s2 != '\r' ? '.' : s2) );
- if (s1 == '\n' || s2 == '\n') i = maxlength;
-
- } else {
- (void)snprintf(hsp, sizeof(hexstuff) - (hsp - hexstuff),
- " %02x%02x", s1, s2);
- hsp += HEXDUMP_HEXSTUFF_PER_SHORT;
- *(asp++) = (isgraph(s1) ? s1 : '.');
- *(asp++) = (isgraph(s2) ? s2 : '.');
- i++;
- }
- if (i >= maxlength) {
+ (void)snprintf(hsp, sizeof(hexstuff) - (hsp - hexstuff),
+ " %02x%02x", s1, s2);
+ hsp += HEXDUMP_HEXSTUFF_PER_SHORT;
+ *(asp++) = (isgraph(s1) ? s1 : '.');
+ *(asp++) = (isgraph(s2) ? s2 : '.');
+ i++;
+ if (i >= HEXDUMP_SHORTS_PER_LINE) {
*hsp = *asp = '\0';
- if (Aflag) {
- (void)printf("%s", asciistuff);
- } else {
- (void)printf("%s0x%04x: %-*s %s",
- ident, oset, HEXDUMP_HEXSTUFF_PER_LINE,
- hexstuff, asciistuff);
- }
+ (void)printf("%s0x%04x: %-*s %s",
+ ident, oset, HEXDUMP_HEXSTUFF_PER_LINE,
+ hexstuff, asciistuff);
i = 0; hsp = hexstuff; asp = asciistuff;
oset += HEXDUMP_BYTES_PER_LINE;
}
}
if (length & 1) {
s1 = *cp++;
- if (Aflag) {
- *(asp++) = (isgraph(s1) ? s1 : (s1 != '\t' && s1 != ' ' && s1 != '\n' && s1 != '\r' ? '.' : s1) );
- } else {
- (void)snprintf(hsp, sizeof(hexstuff) - (hsp - hexstuff),
- " %02x", s1);
- hsp += 3;
- *(asp++) = (isgraph(s1) ? s1 : '.');
- }
+ (void)snprintf(hsp, sizeof(hexstuff) - (hsp - hexstuff),
+ " %02x", s1);
+ hsp += 3;
+ *(asp++) = (isgraph(s1) ? s1 : '.');
++i;
}
if (i > 0) {
*hsp = *asp = '\0';
- if (Aflag) {
- (void)printf("%s%s", ident, asciistuff);
- } else {
- (void)printf("%s0x%04x: %-*s %s",
- ident, oset, HEXDUMP_HEXSTUFF_PER_LINE,
- hexstuff, asciistuff);
- }
+ (void)printf("%s0x%04x: %-*s %s",
+ ident, oset, HEXDUMP_HEXSTUFF_PER_LINE,
+ hexstuff, asciistuff);
}
}
void
-ascii_print(register const char *ident, register const u_char *cp, register u_int length)
+hex_and_ascii_print(register const char *ident, register const u_char *cp,
+ register u_int length)
{
- ascii_print_with_offset(ident, cp, length, 0);
+ hex_and_ascii_print_with_offset(ident, cp, length, 0);
}
/*
@@ -171,15 +167,17 @@ hex_print(register const char *ident, register const u_char *cp, register u_int
int
main(int argc, char *argv[])
{
- hex_print("Hello, World!\n", 14);
+ hex_print("\n\t", "Hello, World!\n", 14);
+ printf("\n");
+ hex_and_ascii_print("\n\t", "Hello, World!\n", 14);
printf("\n");
ascii_print("Hello, World!\n", 14);
printf("\n");
#define TMSG "Now is the winter of our discontent...\n"
- ascii_print_with_offset(TMSG, sizeof(TMSG) - 1, 0x100);
+ hex_print_with_offset("\n\t", TMSG, sizeof(TMSG) - 1, 0x100);
+ printf("\n");
+ hex_and_ascii_print_with_offset("\n\t", TMSG, sizeof(TMSG) - 1, 0x100);
printf("\n");
exit(0);
}
#endif /* MAIN */
-
-
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