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/*
* Copyright 2018 Fabian Maurer
*
* 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 2.1 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <windows.h>
#include <stdlib.h>
#include <shlwapi.h>
#include "wine/heap.h"
#include "wine/debug.h"
#include "resources.h"
WINE_DEFAULT_DEBUG_CHANNEL(find);
static BOOL read_char_from_handle(HANDLE handle, char *char_out)
{
static char buffer[4096];
static UINT buffer_max = 0;
static UINT buffer_pos = 0;
/* Read next content into buffer */
if (buffer_pos >= buffer_max)
{
BOOL success = ReadFile(handle, buffer, 4096, &buffer_max, NULL);
if (!success || !buffer_max)
return FALSE;
buffer_pos = 0;
}
*char_out = buffer[buffer_pos++];
return TRUE;
}
/* Read a line from a handle, returns NULL if the end is reached */
static WCHAR* read_line_from_handle(HANDLE handle)
{
int line_max = 4096;
int length = 0;
WCHAR *line_converted;
int line_converted_length;
BOOL success;
char *line = heap_alloc(line_max);
for (;;)
{
char c;
success = read_char_from_handle(handle, &c);
/* Check for EOF */
if (!success)
{
if (length == 0)
return NULL;
else
break;
}
if (c == '\n')
break;
/* Make sure buffer is large enough */
if (length + 1 >= line_max)
{
line_max *= 2;
line = heap_realloc(line, line_max);
}
line[length++] = c;
}
line[length] = 0;
if (length - 1 >= 0 && line[length - 1] == '\r') /* Strip \r of windows line endings */
line[length - 1] = 0;
line_converted_length = MultiByteToWideChar(CP_ACP, 0, line, -1, 0, 0);
line_converted = heap_alloc(line_converted_length * sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, line, -1, line_converted, line_converted_length);
heap_free(line);
return line_converted;
}
static void write_to_stdout(const WCHAR *str)
{
char *str_converted;
UINT str_converted_length;
DWORD bytes_written;
UINT str_length = lstrlenW(str);
int codepage = CP_ACP;
str_converted_length = WideCharToMultiByte(codepage, 0, str, str_length, NULL, 0, NULL, NULL);
str_converted = heap_alloc(str_converted_length);
WideCharToMultiByte(codepage, 0, str, str_length, str_converted, str_converted_length, NULL, NULL);
WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), str_converted, str_converted_length, &bytes_written, NULL);
if (bytes_written < str_converted_length)
ERR("Failed to write output\n");
heap_free(str_converted);
}
static BOOL run_find_for_line(const WCHAR *line, const WCHAR *tofind)
{
void *found;
WCHAR lineending[] = {'\r', '\n', 0};
if (lstrlenW(line) == 0 || lstrlenW(tofind) == 0)
return FALSE;
found = wcsstr(line, tofind);
if (found)
{
write_to_stdout(line);
write_to_stdout(lineending);
return TRUE;
}
return FALSE;
}
static void output_resource_message(int id)
{
WCHAR buffer[64];
LoadStringW(GetModuleHandleW(NULL), id, buffer, ARRAY_SIZE(buffer));
write_to_stdout(buffer);
}
int __cdecl wmain(int argc, WCHAR *argv[])
{
WCHAR *line;
WCHAR *tofind = NULL;
int i;
int exitcode;
HANDLE input;
TRACE("running find:");
for (i = 0; i < argc; i++)
{
TRACE(" %s", wine_dbgstr_w(argv[i]));
}
TRACE("\n");
input = GetStdHandle(STD_INPUT_HANDLE);
for (i = 1; i < argc; i++)
{
if (argv[i][0] == '/')
{
output_resource_message(IDS_INVALID_SWITCH);
return 2;
}
else if(tofind == NULL)
{
tofind = argv[i];
}
else
{
FIXME("Searching files not supported yet\n");
return 1000;
}
}
if (tofind == NULL)
{
output_resource_message(IDS_INVALID_PARAMETER);
return 2;
}
exitcode = 1;
while ((line = read_line_from_handle(input)) != NULL)
{
if (run_find_for_line(line, tofind))
exitcode = 0;
heap_free(line);
}
return exitcode;
}
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