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/*
* Copyright (C) 2002,2003 Red Hat, Inc.
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <glib.h>
#include "debug.h"
guint _vte_debug_flags;
void
_vte_debug_init(void)
{
#ifdef VTE_DEBUG
const GDebugKey keys[] = {
{ "misc", VTE_DEBUG_MISC },
{ "io", VTE_DEBUG_IO },
{ "adj", VTE_DEBUG_ADJ },
{ "updates", VTE_DEBUG_UPDATES },
{ "events", VTE_DEBUG_EVENTS },
{ "parser", VTE_DEBUG_PARSER },
{ "signals", VTE_DEBUG_SIGNALS },
{ "selection", VTE_DEBUG_SELECTION },
{ "substitution", VTE_DEBUG_SUBSTITUTION },
{ "ring", VTE_DEBUG_RING },
{ "pty", VTE_DEBUG_PTY },
{ "cursor", VTE_DEBUG_CURSOR },
{ "keyboard", VTE_DEBUG_KEYBOARD },
{ "lifecycle", VTE_DEBUG_LIFECYCLE },
{ "work", VTE_DEBUG_WORK },
{ "cells", VTE_DEBUG_CELLS },
{ "timeout", VTE_DEBUG_TIMEOUT },
{ "draw", VTE_DEBUG_DRAW },
{ "ally", VTE_DEBUG_ALLY },
{ "pangocairo", VTE_DEBUG_PANGOCAIRO },
{ "widget-size", VTE_DEBUG_WIDGET_SIZE },
{ "style", VTE_DEBUG_STYLE },
{ "resize", VTE_DEBUG_RESIZE },
{ "regex", VTE_DEBUG_REGEX },
{ "hyperlink", VTE_DEBUG_HYPERLINK },
{ "modes", VTE_DEBUG_MODES },
{ "emulation", VTE_DEBUG_EMULATION },
{ "ringview", VTE_DEBUG_RINGVIEW },
{ "bidi", VTE_DEBUG_BIDI },
{ "conversion", VTE_DEBUG_CONVERSION },
{ "exceptions", VTE_DEBUG_EXCEPTIONS },
{ "image", VTE_DEBUG_IMAGE },
};
_vte_debug_flags = g_parse_debug_string (g_getenv("VTE_DEBUG"),
keys, G_N_ELEMENTS (keys));
_vte_debug_print(0xFFFFFFFFu, "VTE debug flags = %x\n", _vte_debug_flags);
#endif /* VTE_DEBUG */
}
const char *
_vte_debug_sequence_to_string(const char *str,
gssize length)
{
#if defined(VTE_DEBUG)
static const char codes[][6] = {
"NUL", "SOH", "STX", "ETX", "EOT", "ENQ", "ACK", "BEL",
"BS", "HT", "LF", "VT", "FF", "CR", "SO", "SI",
"DLE", "DC1", "DC2", "DC3", "DC4", "NAK", "SYN", "ETB",
"CAN", "EM", "SUB", "ESC", "FS", "GS", "RS", "US",
"SPACE"
};
static GString *buf;
gssize i;
if (str == NULL)
return "(nil)";
if (length == -1)
length = strlen(str);
if (buf == NULL)
buf = g_string_new(NULL);
g_string_truncate(buf, 0);
for (i = 0; i < length; i++) {
guint8 c = (guint8)str[i];
if (i > 0)
g_string_append_c(buf, ' ');
if (c == '\033' /* ESC */) {
switch (str[++i]) {
case '_': g_string_append(buf, "APC"); break;
case '[': g_string_append(buf, "CSI"); break;
case 'P': g_string_append(buf, "DCS"); break;
case ']': g_string_append(buf, "OSC"); break;
case '^': g_string_append(buf, "PM"); break;
case '\\': g_string_append(buf, "ST"); break;
default: g_string_append(buf, "ESC"); i--; break;
}
}
else if (c <= 0x20)
g_string_append(buf, codes[c]);
else if (c == 0x7f)
g_string_append(buf, "DEL");
else if (c >= 0x80)
g_string_append_printf(buf, "\\%02x ", c);
else
g_string_append_c(buf, c);
}
return buf->str;
#else
return NULL;
#endif /* VTE_DEBUG */
}
#ifdef VTE_DEBUG
static bool
hexdump_line(GString* str,
size_t ofs,
uint8_t const* buf,
size_t len)
{
g_string_append_printf(str, "%08x ", (unsigned int)ofs);
for (unsigned int i = 0; i < 16; ++i) {
if (i < len)
g_string_append_printf(str, "%02x ", buf[i]);
else
g_string_append(str, " ");
if (i == 7)
g_string_append_c(str, ' ');
}
g_string_append(str, " |");
for (unsigned int i = 0; i < 16; ++i) {
g_string_append_c(str, i < len ? (g_ascii_isprint(buf[i]) ? buf[i] : '.') : ' ');
}
g_string_append(str, "|\n");
return len >= 16;
}
#endif /* VTE_DEBUG */
void
_vte_debug_hexdump(char const* str,
uint8_t const* buf,
size_t len)
{
#ifdef VTE_DEBUG
GString* s = g_string_new(str);
g_string_append_printf(s, " len = 0x%x = %u\n", (unsigned int)len, (unsigned int)len);
size_t ofs = 0;
while (hexdump_line(s, ofs, buf + ofs, len - ofs))
ofs += 16;
g_printerr("%s", s->str);
g_string_free(s, true);
#endif /* VTE_DEBUG */
}
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