338 lines
9.1 KiB
C
338 lines
9.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <ctype.h>
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#include "debugtools.h"
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#include "wtypes.h"
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#include "thread.h"
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/* ---------------------------------------------------------------------- */
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struct debug_info
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{
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char *str_pos; /* current position in strings buffer */
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char *out_pos; /* current position in output buffer */
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char strings[500]; /* buffer for temporary strings */
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char output[500]; /* current output line */
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};
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static struct debug_info tmp;
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static inline struct debug_info *get_info(void)
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{
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struct debug_info *info = NtCurrentTeb()->debug_info;
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if (!info)
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{
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/* setup the temp structure in case HeapAlloc wants to print something */
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NtCurrentTeb()->debug_info = &tmp;
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tmp.str_pos = tmp.strings;
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tmp.out_pos = tmp.output;
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info = HeapAlloc( GetProcessHeap(), 0, sizeof(*info) );
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info->str_pos = info->strings;
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info->out_pos = info->output;
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NtCurrentTeb()->debug_info = info;
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}
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return info;
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}
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/* ---------------------------------------------------------------------- */
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static void *
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gimme1 (int n)
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{
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struct debug_info *info = get_info();
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char *res = info->str_pos;
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if (res + n >= &info->strings[sizeof(info->strings)]) res = info->strings;
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info->str_pos = res + n;
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return res;
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}
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/* ---------------------------------------------------------------------- */
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LPSTR
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debugstr_an (LPCSTR src, int n)
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{
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LPSTR dst, res;
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if (!src) return "(null)";
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if (n < 0) n = 0;
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dst = res = gimme1 (n * 4 + 6);
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*dst++ = '"';
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while (n-- > 0 && *src)
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{
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BYTE c = *src++;
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switch (c)
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{
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case '\n': *dst++ = '\\'; *dst++ = 'n'; break;
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case '\r': *dst++ = '\\'; *dst++ = 'r'; break;
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case '\t': *dst++ = '\\'; *dst++ = 't'; break;
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case '"': *dst++ = '\\'; *dst++ = '"'; break;
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case '\\': *dst++ = '\\'; *dst++ = '\\'; break;
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default:
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if (c >= ' ' && c <= 126)
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*dst++ = c;
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else
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{
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*dst++ = '\\';
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*dst++ = '0' + ((c >> 6) & 7);
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*dst++ = '0' + ((c >> 3) & 7);
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*dst++ = '0' + ((c >> 0) & 7);
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}
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}
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}
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*dst++ = '"';
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if (*src)
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{
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*dst++ = '.';
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*dst++ = '.';
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*dst++ = '.';
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}
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*dst = '\0';
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return res;
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}
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/* ---------------------------------------------------------------------- */
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LPSTR
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debugstr_a (LPCSTR s)
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{
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return debugstr_an (s, 80);
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}
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/* ---------------------------------------------------------------------- */
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LPSTR
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debugstr_wn (LPCWSTR src, int n)
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{
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LPSTR dst, res;
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if (!src) return "(null)";
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if (n < 0) n = 0;
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dst = res = gimme1 (n * 5 + 7);
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*dst++ = 'L';
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*dst++ = '"';
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while (n-- > 0 && *src)
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{
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WORD c = *src++;
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switch (c)
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{
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case '\n': *dst++ = '\\'; *dst++ = 'n'; break;
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case '\r': *dst++ = '\\'; *dst++ = 'r'; break;
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case '\t': *dst++ = '\\'; *dst++ = 't'; break;
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case '"': *dst++ = '\\'; *dst++ = '"'; break;
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case '\\': *dst++ = '\\'; *dst++ = '\\'; break;
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default:
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if (c >= ' ' && c <= 126)
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*dst++ = c;
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else
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{
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*dst++ = '\\';
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sprintf(dst,"%04x",c);
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dst+=4;
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}
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}
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}
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*dst++ = '"';
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if (*src)
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{
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*dst++ = '.';
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*dst++ = '.';
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*dst++ = '.';
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}
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*dst = '\0';
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return res;
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}
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/* ---------------------------------------------------------------------- */
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LPSTR
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debugstr_w (LPCWSTR s)
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{
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return debugstr_wn (s, 80);
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}
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/* ---------------------------------------------------------------------- */
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/* This routine returns a nicely formated name of the resource res
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If the resource name is a string, it will return '<res-name>'
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If it is a number, it will return #<4-digit-hex-number> */
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LPSTR debugres_a( LPCSTR res )
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{
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char resname[10];
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if (HIWORD(res)) return debugstr_a(res);
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sprintf(resname, "#%04x", LOWORD(res));
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return debugstr_a (resname);
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}
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LPSTR debugres_w( LPCWSTR res )
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{
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char resname[10];
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if (HIWORD(res)) return debugstr_w(res);
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sprintf(resname, "#%04x", LOWORD(res));
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return debugstr_a (resname);
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}
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/* ---------------------------------------------------------------------- */
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LPSTR debugstr_guid( const GUID *id )
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{
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LPSTR str;
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if (!id) return "(null)";
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if (!HIWORD(id))
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{
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str = gimme1(12);
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sprintf( str, "<guid-0x%04x>", LOWORD(id) );
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}
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else
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{
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str = gimme1(40);
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sprintf( str, "{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
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id->Data1, id->Data2, id->Data3,
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id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
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id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7] );
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}
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return str;
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}
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/* ---------------------------------------------------------------------- */
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int dbg_vprintf( const char *format, va_list args )
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{
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struct debug_info *info = get_info();
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int ret = vsprintf( info->out_pos, format, args );
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char *p = strrchr( info->out_pos, '\n' );
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if (!p) info->out_pos += ret;
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else
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{
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char *pos = info->output;
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p++;
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write( 2, pos, p - pos );
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/* move beginning of next line to start of buffer */
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while ((*pos = *p++)) pos++;
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info->out_pos = pos;
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}
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return ret;
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}
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/* ---------------------------------------------------------------------- */
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int dbg_printf(const char *format, ...)
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{
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int ret;
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va_list valist;
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va_start(valist, format);
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ret = dbg_vprintf( format, valist);
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va_end(valist);
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return ret;
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}
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/*--< Function >---------------------------------------------------------
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**
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** debugstr_hex_dump
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**
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** Description:
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** This function creates a hex dump, with a readable ascii
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** section, for displaying memory.
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**
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** Parameters:
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** 1. ptr Pointer to memory
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** 2. len How much to dump.
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**
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** Returns:
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** Temporarily allocated buffer, with the hex dump in it.
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** Don't rely on this pointer being around for very long, just
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** long enough to use it in a TRACE statement; e.g.:
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** TRACE("struct dump is \n%s", debugstr_hex_dump(&x, sizeof(x)));
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**
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**-------------------------------------------------------------------------*/
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LPSTR
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debugstr_hex_dump (const void *ptr, int len)
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{
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/* Locals */
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char dumpbuf[59];
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char charbuf[20];
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char tempbuf[8];
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const char *p;
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int i;
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unsigned int nosign;
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LPSTR dst;
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LPSTR outptr;
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/* Begin function dbg_hex_dump */
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/*-----------------------------------------------------------------------
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** Allocate an output buffer
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** A reasonable value is one line overhand (80 chars), and
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** then one line (80) for every 16 bytes.
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**---------------------------------------------------------------------*/
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outptr = dst = gimme1 ((len * (80 / 16)) + 80);
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/*-----------------------------------------------------------------------
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** Loop throught the input buffer, one character at a time
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**---------------------------------------------------------------------*/
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for (i = 0, p = ptr; (i < len); i++, p++)
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{
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/*-------------------------------------------------------------------
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** If we're just starting a line,
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** we need to possibly flush the old line, and then
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** intialize the line buffer.
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**-----------------------------------------------------------------*/
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if ((i % 16) == 0)
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{
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if (i)
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{
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sprintf(outptr, " %-43.43s %-16.16s\n", dumpbuf, charbuf);
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outptr += strlen(outptr);
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}
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sprintf (dumpbuf, "%04x: ", i);
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strcpy (charbuf, "");
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}
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/*-------------------------------------------------------------------
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** Add the current data byte to the dump section.
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**-----------------------------------------------------------------*/
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nosign = (unsigned char) *p;
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sprintf (tempbuf, "%02X", nosign);
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/*-------------------------------------------------------------------
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** If we're two DWORDS through, add a hyphen for readability,
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** if it's a DWORD boundary, add a space for more
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** readability.
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**-----------------------------------------------------------------*/
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if ((i % 16) == 7)
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strcat(tempbuf, " - ");
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else if ( (i % 4) == 3)
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strcat(tempbuf, " ");
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strcat (dumpbuf, tempbuf);
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/*-------------------------------------------------------------------
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** Add the current byte to the character display part of the
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** hex dump
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**-----------------------------------------------------------------*/
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sprintf (tempbuf, "%c", isprint(*p) ? *p : '.');
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strcat (charbuf, tempbuf);
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}
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/*-----------------------------------------------------------------------
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** Flush the last line, if any
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**---------------------------------------------------------------------*/
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if (i > 0)
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{
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sprintf(outptr, " %-43.43s %-16.16s\n", dumpbuf, charbuf);
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outptr += strlen(outptr);
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}
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return(dst);
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} /* End function dbg_hex_dump */
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