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发信人: zzt (好好学习，天天向上), 信区: Program
标 题: c源代码(一)attrib.c
发信站: BBS 荔园晨风站 (Wed Jan 26 10:37:11 2000), 转信
发信人: daihao.bbs@210.34.48.50 (不死鸟), 信区: C
标 题: c源代码(一)attrib.c
发信站: FZU_BBS (Wed Feb 25 20:38:17 1998)
转信站: DUT!sjtunews!FZU_BBS
出 处: bbs.fzu.edu.cn
/*
* attrib - Change file attributes
*
* Copyright (C) 1994 Troy Rollo <troy@cbme.unsw.EDU.AU>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <stddef.h>
#include <string.h>
#include <sys/stat.h>
#include <errno.h>
#include <stdlib.h>
#include <io.h>
#include <dir.h>
#include <dos.h>
static char *
expand_wildcards(char *s)
{
static struct find_t info;
char wildcard[80];
static char directory[256];
static char filename[256];
unsigned attrib;
char *c1, *c2;
if (s)
{
strcpy(wildcard, s);
strcpy(directory, wildcard);
if ((c1 = strrchr(directory, '/')) != 0 ||
(c2 = strrchr(directory, '\\')) != 0)
{
if (c1 > c2)
c1[1] = '\0';
else
c2[1] = '\0';
}
else
directory[0] = '\0';
if (! strchr(wildcard, '.'))
strcat(wildcard, "*.*");
attrib = _A_HIDDEN | _A_HIDDEN | _A_ARCH | _A_NORMAL | _A_SUBDIR
| _A_RDONLY;
if (_dos_findfirst(wildcard, attrib, &info) != 0)
return NULL;
while (!strcmp(info.name, ".") || !strcmp(info.name, ".."))
if (_dos_findnext(&info))
return NULL;
}
else
{
if (_dos_findnext(&info) != 0)
return NULL;
}
strcpy(filename, directory);
strcat(filename, info.name);
return filename;
}
int
main( int argc,
char **argv)
{
char *pchFile;
int on = 0;
int off = 0;
int turn_on;
unsigned value;
while (--argc)
{
argv++;
if (**argv == '-' ||
**argv == '+')
{
while (**argv)
{
switch(**argv)
{
case '+':
turn_on = 1;
value = 0;
break;
case '-':
turn_on = 0;
value = 0;
break;
case 'r':
case 'R':
value = _A_RDONLY;
break;
case 'a':
case 'A':
value = _A_ARCH;
break;
case 's':
case 'S':
value = _A_SYSTEM;
break;
case 'h':
case 'H':
value = _A_HIDDEN;
break;
default:
fprintf(stderr, "Usage: attrib [{+-}{ahr
s}] file ...\n");
return 1;
}
if (turn_on)
{
on |= value;
off &= ~value;
}
else
{
off |= value;
on &= ~value;
}
++*argv;
}
}
else
{
for (pchFile = expand_wildcards(*argv);
pchFile;
pchFile = expand_wildcards(0))
{
if (_dos_getfileattr(pchFile, &value))
{
fprintf(stderr, "%s: %s\n", pchFile, sys
_errlist[errno]);
return 1;
}
value &= ~off;
value |= on;
if (_dos_setfileattr(pchFile, value))
{
fprintf(stderr, "%s: %s\n", pchFile, sys
_errlist[errno]);
return 1;
}
}
}
}
return 0;
}
--
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