/* print.c
* Routines for printing packet analysis trees.
*
- * $Id: print.c,v 1.26 2000/01/06 07:33:22 guy Exp $
+ * $Id: print.c,v 1.56 2002/08/02 23:36:06 jmayer Exp $
*
- * Gilbert Ramirez <gram@verdict.uthscsa.edu>
+ * Gilbert Ramirez <gram@alumni.rice.edu>
*
* Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@zing.org>
+ * By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
- *
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
#include <stdio.h>
#include <string.h>
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
+#include <epan/epan.h>
+#include <epan/epan_dissect.h>
+#include <epan/tvbuff.h>
+#include <epan/packet.h>
-#include "packet.h"
#include "print.h"
#include "ps.h"
#include "util.h"
+#include "packet-data.h"
-static void proto_tree_print_node_text(GNode *node, gpointer data);
-static void proto_tree_print_node_ps(GNode *node, gpointer data);
+static void proto_tree_print_node(GNode *node, gpointer data);
+static void print_hex_data_buffer(FILE *fh, register const guchar *cp,
+ register guint length, char_enc encoding, gint format);
static void ps_clean_string(unsigned char *out, const unsigned char *in,
int outbuf_size);
-static void print_hex_data_text(FILE *fh, register const u_char *cp,
- register u_int length, char_enc encoding);
-static void print_hex_data_ps(FILE *fh, register const u_char *cp,
- register u_int length, char_enc encoding);
-static void print_ps_file(FILE* target_fh, FILE* source_fh);
-static void print_text_file(FILE* target_fh, FILE* source_fh);
-
-extern int proto_data; /* in packet-data.c */
-
typedef struct {
int level;
FILE *fh;
- const guint8 *pd;
+ GSList *src_list;
gboolean print_all_levels;
gboolean print_hex_for_data;
char_enc encoding;
+ gint format; /* text or PostScript */
} print_data;
FILE *open_print_dest(int to_file, const char *dest)
pclose(fh);
}
-void print_preamble(FILE *fh, gint format)
-{
- if (format == PR_FMT_PS)
- print_ps_preamble(fh);
-}
-
-void print_finale(FILE *fh, gint format)
-{
- if (format == PR_FMT_PS)
- print_ps_finale(fh);
-}
-
-void print_file(FILE* fh, const char* filename, gint format)
-{
- FILE* fh2 = fopen(filename, "r");
- if (fh2 == NULL) {
- fprintf(stderr, "Could not open file %s for reading.\n", filename);
- return;
- }
-
- if (format == PR_FMT_PS)
- print_ps_file(fh, fh2);
- else
- print_text_file(fh, fh2);
-}
-
-void proto_tree_print(gboolean print_one_packet, print_args_t *print_args,
- GNode *protocol_tree, const u_char *pd, frame_data *fd, FILE *fh)
+void proto_tree_print(print_args_t *print_args, epan_dissect_t *edt,
+ FILE *fh)
{
print_data data;
/* Create the output */
data.level = 0;
data.fh = fh;
- data.pd = pd;
- data.encoding = fd->encoding;
+ data.src_list = edt->pi.data_src;
+ data.encoding = edt->pi.fd->flags.encoding;
data.print_all_levels = print_args->expand_all;
data.print_hex_for_data = !print_args->print_hex;
/* If we're printing the entire packet in hex, don't
print uninterpreted data fields in hex as well. */
+ data.format = print_args->format;
- if (print_args->format == PR_FMT_TEXT) {
- g_node_children_foreach((GNode*) protocol_tree, G_TRAVERSE_ALL,
- proto_tree_print_node_text, &data);
- } else {
- g_node_children_foreach((GNode*) protocol_tree, G_TRAVERSE_ALL,
- proto_tree_print_node_ps, &data);
+ g_node_children_foreach((GNode*) edt->tree, G_TRAVERSE_ALL,
+ proto_tree_print_node, &data);
+}
+
+/*
+ * Find the data source for a specified field, and return a pointer
+ * to the data in it.
+ */
+static const guint8 *
+get_field_data(GSList *src_list, field_info *fi)
+{
+ GSList *src_le;
+ data_source *src;
+ tvbuff_t *src_tvb;
+
+ for (src_le = src_list; src_le != NULL; src_le = src_le->next) {
+ src = src_le->data;
+ src_tvb = src->tvb;
+ if (fi->ds_tvb == src_tvb) {
+ /*
+ * Found it.
+ */
+ return tvb_get_ptr(src_tvb, fi->start, fi->length);
+ }
}
+ g_assert_not_reached();
+ return NULL; /* not found */
}
-/* Print a tree's data, and any child nodes, in plain text */
+#define MAX_INDENT 160
+
+#define MAX_PS_LINE_LENGTH 256
+
+/* Print a tree's data, and any child nodes. */
static
-void proto_tree_print_node_text(GNode *node, gpointer data)
+void proto_tree_print_node(GNode *node, gpointer data)
{
- field_info *fi = (field_info*) (node->data);
+ field_info *fi = PITEM_FINFO(node);
print_data *pdata = (print_data*) data;
- int i;
- int num_spaces;
- char space[41];
+ const guint8 *pd;
gchar label_str[ITEM_LABEL_LENGTH];
gchar *label_ptr;
proto_item_fill_label(fi, label_str);
}
- /* Prepare the tabs for printing, depending on tree level */
- num_spaces = pdata->level * 4;
- if (num_spaces > 40) {
- num_spaces = 40;
- }
- for (i = 0; i < num_spaces; i++) {
- space[i] = ' ';
- }
- /* The string is NUL-terminated */
- space[num_spaces] = 0;
-
- /* Print the text */
- fprintf(pdata->fh, "%s%s\n", space, label_ptr);
+ print_line(pdata->fh, pdata->level, pdata->format, label_ptr);
/* If it's uninterpreted data, dump it (unless our caller will
be printing the entire packet in hex). */
- if (fi->hfinfo->id == proto_data && pdata->print_hex_for_data)
- print_hex_data_text(pdata->fh, &pdata->pd[fi->start],
- fi->length, pdata->encoding);
+ if (fi->hfinfo->id == proto_data && pdata->print_hex_for_data) {
+ /*
+ * Find the data for this field.
+ */
+ pd = get_field_data(pdata->src_list, fi);
+ print_hex_data_buffer(pdata->fh, pd, fi->length,
+ pdata->encoding, pdata->format);
+ }
- /* If we're printing all levels, or if this level is expanded,
- recurse into the subtree, if it exists. */
- if (pdata->print_all_levels || tree_is_expanded[fi->tree_type]) {
+ /* If we're printing all levels, or if this node is one with a
+ subtree and its subtree is expanded, recurse into the subtree,
+ if it exists. */
+ g_assert(fi->tree_type >= -1 && fi->tree_type < num_tree_types);
+ if (pdata->print_all_levels ||
+ (fi->tree_type >= 0 && tree_is_expanded[fi->tree_type])) {
if (g_node_n_children(node) > 0) {
pdata->level++;
g_node_children_foreach(node, G_TRAVERSE_ALL,
- proto_tree_print_node_text, pdata);
+ proto_tree_print_node, pdata);
pdata->level--;
}
}
}
-void print_hex_data(FILE *fh, gint format, register const u_char *cp,
- register u_int length, char_enc encoding)
+void print_hex_data(FILE *fh, gint format, epan_dissect_t *edt)
{
- if (format == PR_FMT_PS)
- print_hex_data_ps(fh, cp, length, encoding);
- else
- print_hex_data_text(fh, cp, length, encoding);
+ gboolean multiple_sources;
+ GSList *src_le;
+ data_source *src;
+ tvbuff_t *tvb;
+ char *name;
+ char *line;
+ const guchar *cp;
+ guint length;
+
+ /*
+ * Set "multiple_sources" iff this frame has more than one
+ * data source; if it does, we need to print the name of
+ * the data source before printing the data from the
+ * data source.
+ */
+ multiple_sources = (edt->pi.data_src->next != NULL);
+
+ for (src_le = edt->pi.data_src; src_le != NULL;
+ src_le = src_le->next) {
+ src = src_le->data;
+ tvb = src->tvb;
+ if (multiple_sources) {
+ name = src->name;
+ print_line(fh, 0, format, "");
+ line = g_malloc(strlen(name) + 2); /* <name>:\0 */
+ strcpy(line, name);
+ strcat(line, ":");
+ print_line(fh, 0, format, line);
+ g_free(line);
+ }
+ length = tvb_length(tvb);
+ cp = tvb_get_ptr(tvb, 0, length);
+ print_hex_data_buffer(fh, cp, length,
+ edt->pi.fd->flags.encoding, format);
+ }
}
-/* This routine was created by Dan Lasley <DLASLEY@PROMUS.com>, and
-only slightly modified for ethereal by Gilbert Ramirez. */
-static
-void print_hex_data_text(FILE *fh, register const u_char *cp,
- register u_int length, char_enc encoding)
+/*
+ * This routine is based on a routine created by Dan Lasley
+ * <DLASLEY@PROMUS.com>.
+ *
+ * It was modified for Ethereal by Gilbert Ramirez and others.
+ */
+
+#define MAX_OFFSET_LEN 8 /* max length of hex offset of bytes */
+#define BYTES_PER_LINE 16 /* max byte values printed on a line */
+#define HEX_DUMP_LEN (BYTES_PER_LINE*3)
+ /* max number of characters hex dump takes -
+ 2 digits plus trailing blank */
+#define DATA_DUMP_LEN (HEX_DUMP_LEN + 2 + BYTES_PER_LINE)
+ /* number of characters those bytes take;
+ 3 characters per byte of hex dump,
+ 2 blanks separating hex from ASCII,
+ 1 character per byte of ASCII dump */
+#define MAX_LINE_LEN (MAX_OFFSET_LEN + 2 + DATA_DUMP_LEN)
+ /* number of characters per line;
+ offset, 2 blanks separating offset
+ from data dump, data dump */
+
+static void
+print_hex_data_buffer(FILE *fh, register const guchar *cp,
+ register guint length, char_enc encoding, gint format)
{
- register int ad, i, j, k;
- u_char c;
- u_char line[60];
- static u_char binhex[16] = {
- '0', '1', '2', '3', '4', '5', '6', '7',
- '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
-
- memset (line, ' ', sizeof line);
- line[sizeof (line)-1] = 0;
- for (ad=i=j=k=0; i<length; i++) {
- c = *cp++;
- line[j++] = binhex[c>>4];
- line[j++] = binhex[c&0xf];
- if (i&1) j++;
+ register unsigned int ad, i, j, k, l;
+ guchar c;
+ guchar line[MAX_LINE_LEN + 1];
+ unsigned int use_digits;
+ static guchar binhex[16] = {
+ '0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
+
+ print_line(fh, 0, format, "");
+
+ /*
+ * How many of the leading digits of the offset will we supply?
+ * We always supply at least 4 digits, but if the maximum offset
+ * won't fit in 4 digits, we use as many digits as will be needed.
+ */
+ if (((length - 1) & 0xF0000000) != 0)
+ use_digits = 8; /* need all 8 digits */
+ else if (((length - 1) & 0x0F000000) != 0)
+ use_digits = 7; /* need 7 digits */
+ else if (((length - 1) & 0x00F00000) != 0)
+ use_digits = 6; /* need 6 digits */
+ else if (((length - 1) & 0x000F0000) != 0)
+ use_digits = 5; /* need 5 digits */
+ else
+ use_digits = 4; /* we'll supply 4 digits */
+
+ ad = 0;
+ i = 0;
+ j = 0;
+ k = 0;
+ while (i < length) {
+ if ((i & 15) == 0) {
+ /*
+ * Start of a new line.
+ */
+ j = 0;
+ k = 0;
+ l = use_digits;
+ do {
+ l--;
+ c = (ad >> (l*4)) & 0xF;
+ line[j++] = binhex[c];
+ } while (l != 0);
+ line[j++] = ' ';
+ line[j++] = ' ';
+ memset(line+j, ' ', DATA_DUMP_LEN);
+
+ /*
+ * Offset in line of ASCII dump.
+ */
+ k = j + HEX_DUMP_LEN + 2;
+ }
+ c = *cp++;
+ line[j++] = binhex[c>>4];
+ line[j++] = binhex[c&0xf];
+ j++;
if (encoding == CHAR_EBCDIC) {
c = EBCDIC_to_ASCII1(c);
}
- line[42+k++] = c >= ' ' && c < 0x7f ? c : '.';
- if ((i & 15) == 15) {
- fprintf (fh, "\n%4x %s", ad, line);
- /*if (i==15) printf (" %d", length);*/
- memset (line, ' ', sizeof line);
- line[sizeof (line)-1] = j = k = 0;
- ad += 16;
- }
- }
-
- if (line[0] != ' ') fprintf (fh, "\n%4x %s", ad, line);
- fprintf(fh, "\n");
- return;
-
-}
-
-#define MAX_LINE_LENGTH 256
-
-/* Print a node's data, and any child nodes, in PostScript */
-static
-void proto_tree_print_node_ps(GNode *node, gpointer data)
-{
- field_info *fi = (field_info*) (node->data);
- print_data *pdata = (print_data*) data;
- gchar label_str[ITEM_LABEL_LENGTH];
- gchar *label_ptr;
- char psbuffer[MAX_LINE_LENGTH]; /* static sized buffer! */
-
- if (!fi->visible)
- return;
-
- /* was a free format label produced? */
- if (fi->representation) {
- label_ptr = fi->representation;
- }
- else { /* no, make a generic label */
- label_ptr = label_str;
- proto_item_fill_label(fi, label_str);
- }
-
- /* Print the text */
- ps_clean_string(psbuffer, label_ptr, MAX_LINE_LENGTH);
- fprintf(pdata->fh, "%d (%s) putline\n", pdata->level, psbuffer);
-
- /* If it's uninterpreted data, dump it (unless our caller will
- be printing the entire packet in hex). */
- if (fi->hfinfo->id == proto_data && pdata->print_hex_for_data) {
- print_hex_data_ps(pdata->fh, &pdata->pd[fi->start], fi->length,
- pdata->encoding);
- }
-
- /* Recurse into the subtree, if it exists */
- if (g_node_n_children(node) > 0) {
- pdata->level++;
- g_node_children_foreach(node, G_TRAVERSE_ALL,
- proto_tree_print_node_ps, pdata);
- pdata->level--;
+ line[k++] = c >= ' ' && c < 0x7f ? c : '.';
+ i++;
+ if ((i & 15) == 0 || i == length) {
+ /*
+ * We'll be starting a new line, or
+ * we're finished printing this buffer;
+ * dump out the line we've constructed,
+ * and advance the offset.
+ */
+ line[k] = '\0';
+ print_line(fh, 0, format, line);
+ ad += 16;
+ }
}
}
}
}
-static
-void print_hex_data_ps(FILE *fh, register const u_char *cp,
- register u_int length, char_enc encoding)
-{
- register int ad, i, j, k;
- u_char c;
- u_char line[60];
- static u_char binhex[16] = {
- '0', '1', '2', '3', '4', '5', '6', '7',
- '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
- u_char psline[MAX_LINE_LENGTH];
-
- print_ps_hex(fh);
- memset (line, ' ', sizeof line);
- line[sizeof (line)-1] = 0;
- for (ad=i=j=k=0; i<length; i++) {
- c = *cp++;
- line[j++] = binhex[c>>4];
- line[j++] = binhex[c&0xf];
- if (i&1) j++;
- if (encoding == CHAR_EBCDIC) {
- c = EBCDIC_to_ASCII1(c);
- }
- line[42+k++] = c >= ' ' && c < 0x7f ? c : '.';
- if ((i & 15) == 15) {
- ps_clean_string(psline, line, MAX_LINE_LENGTH);
- fprintf (fh, "(%4x %s) hexdump\n", ad, psline);
- memset (line, ' ', sizeof line);
- line[sizeof (line)-1] = j = k = 0;
- ad += 16;
- }
- }
-
- if (line[0] != ' ') {
- ps_clean_string(psline, line, MAX_LINE_LENGTH);
- fprintf (fh, "(%4x %s) hexdump\n", ad, psline);
- }
- return;
-
-}
-
-static
-void print_text_file(FILE* target_fh, FILE* source_fh)
+void print_preamble(FILE *fh, gint format)
{
- gchar buffer[MAX_LINE_LENGTH];
- while (fgets(buffer, sizeof(buffer), source_fh) != NULL) {
- fputs(buffer, target_fh);
- }
+ if (format == PR_FMT_PS)
+ print_ps_preamble(fh);
}
-static
-void print_ps_file(FILE* target_fh, FILE* source_fh)
+void print_finale(FILE *fh, gint format)
{
- gchar buffer[MAX_LINE_LENGTH];
- gchar ps_buffer[MAX_LINE_LENGTH];
-
- while (fgets(buffer, sizeof(buffer), source_fh) != NULL) {
- ps_clean_string(ps_buffer, buffer, MAX_LINE_LENGTH);
- fputs(ps_buffer, target_fh);
- }
+ if (format == PR_FMT_PS)
+ print_ps_finale(fh);
}
-void print_line(FILE *fh, gint format, char *line)
+void print_line(FILE *fh, int indent, gint format, char *line)
{
- char psbuffer[MAX_LINE_LENGTH]; /* static sized buffer! */
+ char space[MAX_INDENT+1];
+ int i;
+ int num_spaces;
+ char psbuffer[MAX_PS_LINE_LENGTH]; /* static sized buffer! */
if (format == PR_FMT_PS) {
- ps_clean_string(psbuffer, line, MAX_LINE_LENGTH);
- fprintf(fh, "(%s) hexdump\n", psbuffer);
- } else
+ ps_clean_string(psbuffer, line, MAX_PS_LINE_LENGTH);
+ fprintf(fh, "%d (%s) putline\n", indent, psbuffer);
+ } else {
+ /* Prepare the tabs for printing, depending on tree level */
+ num_spaces = indent * 4;
+ if (num_spaces > MAX_INDENT) {
+ num_spaces = MAX_INDENT;
+ }
+ for (i = 0; i < num_spaces; i++) {
+ space[i] = ' ';
+ }
+ /* The string is NUL-terminated */
+ space[num_spaces] = '\0';
+
+ fputs(space, fh);
fputs(line, fh);
+ putc('\n', fh);
+ }
}
git.samba.org / obnox / wireshark / wip.git / blobdiff