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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(二)--deltree.c
发信站: BBS 荔园晨风站 (Wed Jan 26 10:25:22 2000), 转信
发信人: daihao.bbs@210.34.48.50 (不死鸟), 信区: C
标 题: c源代码(二)--deltree.c
发信站: FZU_BBS (Wed Feb 25 20:42:18 1998)
转信站: DUT!sjtunews!FZU_BBS
出 处: bbs.fzu.edu.cn
/*
* deltree - Delete a directory tree
*
* 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>
extern int _rtl_chmod(const char *pchPath, int mode, ...);
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_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;
}
FILE *fpOut;
void
deltree(char *pchFile,
int yes)
{
struct find_t info;
char wildcard[256];
char filename[256];
char achLine[256];
int result;
struct stat sbuf;
if (*pchFile == '.')
{
fprintf(stderr, "Cannot remove %s\n", pchFile);
exit(1);
}
if (stat(pchFile, &sbuf) == -1)
{
fprintf(stderr, "%s: %s\n", pchFile, sys_errlist[errno]);
exit(1);
}
if (!(sbuf.st_mode & S_IFDIR))
{
fprintf(stderr, "%s: Not a directory\n", pchFile);
exit(1);
}
if (!yes && fpOut)
{
fprintf(fpOut, "Delete %s and all its subdirectories? (y/N) ", p
chFile);
gets(achLine);
if (*achLine != 'Y' && *achLine != 'y')
return;
}
strcpy(wildcard, pchFile);
strcat(wildcard, "\\*.*");
for (result = _dos_findfirst(wildcard,
_A_NORMAL |
_A_RDONLY |
_A_HIDDEN |
_A_SYSTEM |
_A_SUBDIR |
_A_ARCH,
&info);
result == 0;
result = _dos_findnext(&info))
{
if (*info.name == '.')
continue;
strcpy(filename, pchFile);
strcat(filename, "\\");
strcat(filename, info.name);
if (info.attrib & _A_SUBDIR)
{
deltree(filename, 1);
}
else
{
if (_rtl_chmod(filename, 1, 0) == -1 ||
unlink(filename) == -1)
{
fprintf(stderr, "%s: %s\n",
filename,
sys_errlist[errno]);
exit(1);
}
}
}
if (_rtl_chmod(pchFile, 1, 0) == -1 ||
rmdir(pchFile) == -1)
{
fprintf(stderr, "%s: %s\n",
pchFile,
sys_errlist[errno]);
exit(1);
}
}
int
main( int argc,
char **argv)
{
int yes = 0;
char *pchFile;
if (!isatty(0) ||
(!isatty(1) &&
!isatty(2)))
yes = 1;
if (isatty(1))
fpOut = stdout;
else if (isatty(2))
fpOut = stderr;
else
fpOut = 0;
while (--argc)
{
argv++;
if (**argv == '/' ||
**argv == '-')
{
while (*++*argv)
{
switch(**argv)
{
case 'y':
case 'Y':
yes = 1;
break;
case 'i':
case 'I':
yes = 0;
break;
default:
fprintf(stderr, "Usage: deltree [-{yi}]
directory ...\n");
return 1;
}
}
}
else
{
for (pchFile = expand_wildcards(*argv);
pchFile;
pchFile = expand_wildcards(0))
{
deltree(pchFile, yes);
}
}
}
return 0;
}
--
m;35m※ 来源:．庭芳苑 bbs.fzu.edu.cn．[FROM: 210.34.49.170]m
--
m;32m※ 转寄:．碧海青天 bbs.dlut.edu.cn．[FROM: 210.39.3.50]m
--
日出东方，唯我不败；
天上地下，唯我独尊。
※ 来源:·BBS 荔园晨风站 bbs.szu.edu.cn·[FROM: 192.168.1.11]
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