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/*
The evil 'set file time' function for testing file removal
Use:
setfiletime Age file*
*/
#include <stdio.h>
#include <sys/time.h>
#include <sys/time.h>
#include <unistd.h>
#include <stdlib.h>
extern char *optarg;
extern int optind;
extern int optopt;
extern int opterr;
extern int optreset;
char *Name = "???";
char *msg[] = {
"%s: setfiletime AGE file*\n",
" AGE is fK, where f amount (fraction)",
" K is amount - S/s sec, M/m min, H/h hour, D/d day",
0
};
void usage(void)
{
int i;
for( i = 0; msg[i]; ++i ){
if( i == 0 ) fprintf( stderr, msg[i], Name );
else fprintf( stderr, "%s\n", msg[i] );
}
exit(1);
}
int main( int argc, char **argv )
{
int c;
int age;
float fage;
char *s, *t;
struct timeval tval[2];
setlinebuf(stdout);
if( argv[0] ) Name = argv[0];
while( (c = getopt( argc, argv, "=" ) ) != EOF ){
switch( c ){
case '=': usage(); break;
default: usage(); break;
}
}
if( argc - optind == 0 ) usage();
s = argv[optind++];
t = 0;
fage = strtod(s,&t);
printf("age '%f' (%s)\n", fage, s );
if( !t ) usage();
if( !fage ) usage();
switch( t[0] ){
case 's': case 'S': break;
case 'm': case 'M': fage *= 60; break;
case 'h': case 'H': fage *= 60*60; break;
case 'd': case 'D': fage *= 24*60*60; break;
}
printf( "back '%f' sec\n", fage );
if( gettimeofday( &tval[0], 0 ) ){
perror( "gettimeofday" ); exit(1);
}
printf( "now '%d'\n", (int)tval[0].tv_sec );
tval[0].tv_sec -= (int)fage;
tval[1] = tval[0];
while( optind < argc ){
s = argv[optind++];
printf( "setting '%s' back %d\n", s, (int)fage );
if( utimes( s, tval ) ){
perror( "utimes" ); exit(1);
}
}
return(0);
}
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