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TODAYBAK.C
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C/C++ Source or Header
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1994-04-03
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2KB
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99 lines
/*
** TODAYBAK.C - Back up today's work to a specified floppy
**
** public domain demo by Bob Stout
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dos.h>
#if defined(__ZTC__) && (__ZTC__ < 0x600)
#define _dos_getdate dos_getdate
#define _dos_setdate dos_setdate
#define _dosdate_t dos_date_t
#endif
#ifdef __TURBOC__
#define _dosdate_t dosdate_t
#endif
#ifndef SUCCESS
#define SUCCESS 0
#endif
#ifndef CAST
#define CAST(new_type,old_object) (*((new_type *)&(old_object)))
#endif
#define LAST_CHAR(s) (((char *)s)[strlen(s) - 1])
struct DOS_DATE {
unsigned int da : 5;
unsigned int mo : 4;
unsigned int yr : 7;
} ;
struct _dosdate_t today;
struct DOS_DATE ftoday;
char drive;
void do_dir(char *);
void usage(void);
int main(int argc, char *argv[])
{
int i;
_dos_getdate(&today);
ftoday.da = today.day;
ftoday.mo = today.month;
ftoday.yr = today.year - 1980;
if (2 > argc)
usage();
drive = *argv[1];
if (!strchr("AaBb", drive))
usage();
if (3 > argc)
do_dir(".");
else for (i = 2; i < argc; ++i)
do_dir(argv[i]);
return EXIT_SUCCESS;
}
void usage(void)
{
puts("usage: TODAYBAK floppy [dir1] [...dirN]");
puts(" Copies today's files to the specified floppy.");
puts(" floppy = 'A' | 'B'");
puts(" with no directories specified, "
"uses current directory");
exit(EXIT_FAILURE);
}
void do_dir(char *path)
{
char search[67];
struct find_t ff;
strcat(strcpy(search, path), "\\*.*");
if (SUCCESS == _dos_findfirst(search, 0xff, &ff)) do
{
if (!(ff.attrib & _A_SUBDIR) && '.' != *ff.name)
{
if (ff.wr_date == CAST(unsigned short, ftoday))
{
char cmd[128];
sprintf(cmd, "COPY %s\\%s %c: > NUL",
path, ff.name, drive);
system(cmd);
}
}
} while (SUCCESS == _dos_findnext(&ff));
}