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High Voltage Shareware
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DIR2
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0_BYTE11.ZIP
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0-BYTE.C
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C/C++ Source or Header
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1993-11-27
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3KB
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111 lines
/* 0-byte.c */
/*
DESCRIPTION:
Accepts a DIR listing from Standard Input, and produces a 0-byte
length file for each file listed in the DIR listing.
Subidirectories are ignored.
USAGE:
DIR \target\subdirectory | 0-BYTE > capture.cap
The 0-byte-length files will be created in the current subdirectory.
0-byte will not overwrite existing files. Check CAPTURE.CAP for
the names of duplicate files found.
dap@kandy.com 11/26/93
*/
/*
HISTORY:
If you find a bug, report it. Otherwise it probably won't get fixed.
11/27/93 v1.1 Sets date and time of 0-byte file to reflect date
and time of original file.
11/26/93 v1.0 Initial release. First (and hopefully last) version.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dos.h>
#include <errno.h>
main()
{
unsigned dos_handle;
unsigned mo, da, yr, hr, mn;
unsigned dat, tim;
char *k;
char buf[512];
fprintf(stderr, "0-BYTE v1.1 <dap@kandy.com>\n");
fprintf(stderr, "Last compiled on %s at %s\n\n", __DATE__, __TIME__);
while((fgets(buf, 511, stdin))!=NULL)
{
if((strstr(buf, "<DIR>"))!=NULL)
continue;
if(*buf==' ' || *buf=='\n')
continue;
mo=(unsigned)atoi(buf+23);
da=(unsigned)atoi(buf+26);
yr=(unsigned)(atoi(buf+29)-80);
dat = (yr << 9) | (mo << 5) | da;
hr=(unsigned)atoi(buf+33);
if(*(buf+38)=='p')
hr+=12;
mn=(unsigned)atoi(buf+36);
tim = (hr << 11) | (mn << 5);
*(buf+12)='\0';
k=strchr(buf, ' ');
*k='.';
k++;
while(*k==' ')
strcpy(k, k+1);
if((k=strchr(buf, ' '))!=NULL)
*k='\0';
if(!strcmp(buf, "...") || !strcmp(buf, ".."))
continue;
if(_dos_creatnew(buf, 0, &dos_handle))
{
if(errno==EACCES)
fprintf(stderr, "ERROR: %c%c%c%s: %s\n", (char)7, (char)7, (char)7,
buf, "Permission denied");
else if(errno==EEXIST)
{
fputc(7, stderr);
printf("%s EXISTS and will not be overwritten!\n", buf);
}
else if(errno==EMFILE)
fprintf(stderr, "ERROR: %c%c%c%s: %s\n", (char)7, (char)7, (char)7,
buf, "Too many open files");
else if(errno==ENOENT)
fprintf(stderr, "ERROR: %c%c%c%s: %s\n", (char)7, (char)7, (char)7,
buf, "No such file or directory");
else
fprintf(stderr, "ERROR: %c%c%c%s: %s\n", (char)7, (char)7, (char)7,
buf, "Unknown error");
}
else
{
_dos_setftime(dos_handle, dat, tim);
printf("%s\n", buf);
_dos_close(dos_handle);
}
}
exit(0);
}