home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Cream of the Crop 26
/
Cream of the Crop 26.iso
/
program
/
snip9707.zip
/
RM_ALL.C
< prev
next >
Wrap
C/C++ Source or Header
|
1997-07-05
|
6KB
|
199 lines
/* +++Date last modified: 05-Jul-1997 */
/*
** Remove all files and (optionally) subdirectories
**
** public domain demo by Bob Stout
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <io.h>
#include <dos.h>
#include <ctype.h>
#include "sniptype.h"
#include "dirport.h"
#if defined(MSDOS) || defined(__MSDOS__)
#include "unistd.h"
#else
#include <unistd.h>
#endif
#define MAX_PATH 80
#if (defined(_MSC_VER) && (_MSC_VER >= 700)) || (defined(__SC__))
/* Make FP_xxx macros lvalues as in older versions */
#undef FP_SEG
#undef FP_OFF
#define FP_SEG(fp) ((unsigned)((unsigned long)(fp) >> 16))
#define FP_OFF(fp) ((unsigned)(fp && 0xffff))
#endif
/* Select one of the following - remove() is ANSI */
#define rmfunc remove
/* #define rmfunc unlink */
#define show(s) fputs((s), stderr)
Boolean_T recurse = False_, gobble = False_, ignore = False_;
char *mask = "*.*";
/*
** Clean all files from a directory
*/
void clean_dir(char *path)
{
char rmpath[MAX_PATH], *rmfile;
DOSFileData fbuf;
unsigned attrib = (ignore) ? _A_ANY : 0;
strcpy(rmpath, path);
if ('\\' != LAST_CHAR(rmpath))
strcat(rmpath, "\\");
rmfile = &rmpath[strlen(rmpath)];
strcpy(rmfile, mask);
if (0 == FIND_FIRST(rmpath, attrib, &fbuf)) do
{
strcpy(rmfile, ff_name(&fbuf));
if (ignore)
{
union REGS regs;
struct SREGS sregs;
regs.x.ax = 0x4300;
regs.x.dx = FP_OFF((char FAR *)rmpath);
segread(&sregs);
sregs.ds = FP_SEG((char FAR *)rmpath);
intdosx(®s, ®s, &sregs);
if (!regs.x.cflag)
{
regs.x.ax = 0x4301;
regs.x.cx &= ~(_A_RDONLY | _A_HIDDEN | _A_SYSTEM);
intdosx(®s, ®s, &sregs);
if (regs.x.cflag)
printf("unable to delete %s\n", rmpath);
}
}
rmfunc(rmpath);
printf("deleting %s\n", rmpath);
} while (0 == FIND_NEXT(&fbuf));
}
/*
** Process directories
*/
void do_dir(char *path)
{
char search[MAX_PATH], new[MAX_PATH];
DOSFileData ff;
strcpy(search, path);
if ('\\' != LAST_CHAR(search))
strcat(search, "\\");
strcat(search, "*.*");
if (Success_ == FIND_FIRST(search, _A_ANY, &ff)) do
{
if (ff_attr(&ff) & _A_SUBDIR && '.' != *ff_name(&ff))
{
strcpy(new, path);
if ('\\' != LAST_CHAR(new))
strcat(new, "\\");
strcat(new, ff_name(&ff));
do_dir(new);
}
} while (Success_ == FIND_NEXT(&ff));
clean_dir(path);
if (gobble)
rmdir(path);
}
/*
** Tell 'em they messed up
*/
void usage(Boolean_T errstat)
{
if (errstat)
fputc('\a', stderr);
show("Usage: RM_ALL directory [...directory] [-eFNAME.EXT] [-rgi?]\n");
show("switches: -eFNAME.EXT Remove only files matching mask "
"(default is \"-e*.*\")\n");
show(" -r Recurse subdirectories\n");
show(" -g Gobble (delete) empty subdirectories\n");
show(" -i Ignore special file attributes "
"(CAUTION!)\n");
show(" -? Display help (this message)\n");
exit(errstat);
}
/*
** RM_ALL - Deletes all files and (optionally) subdirectories
*/
int main(int argc, char *argv[])
{
int i, j;
Boolean_T found_dir = False_;
void (*clean_func)(char *) = clean_dir;
for (i = 1; i < argc; ++i) /* Check for switches */
{
if (NULL == strchr("-/", *argv[i]))
continue; /* Assume it's a filename */
for (j = 1; argv[i][j] ; ++j) /* Traverse nested switches */
{
switch (toupper(argv[i][j]))
{
case 'R':
clean_func = do_dir;
break;
case 'G':
gobble = True_;
break;
case 'I':
ignore = True_;
break;
case '?':
puts("***help***");
usage(False_);
break;
case 'E':
if (0 == strlen(&argv[i][++j]))
{
puts("***no file***");
usage(Error_); /* Oops */
}
mask = strupr(&argv[i][j]);
j += strlen(&argv[i][j]) - 1; /* End of switch */
break;
default:
puts("***default***");
usage(Error_);
}
}
}
for (i = 1; i < argc; ++i) /* Scan filenames */
{
if (strchr("/-", *argv[i]))
continue;
found_dir = True_;
clean_func(argv[i]);
}
if (!found_dir)
{
puts("***not found***");
usage(True_);
}
return 0;
}