int
main( int argc, char *argv[])
{
int size, index, flagALRT = 0; //Variables to check integers
struct fileInfo *table; //Table struct to store everything
const char *flag = {"alrt"}; //Available flags
char c; //Checks for the certain flag
//While loop that checks though for all possible flags
while ((c = getopt(argc, argv, flag)) != -1)
{
//Switch statement that checks for the type of flag.
switch(c)
{
case 'a':
flagALRT += AFLAG;
break;
case 'l':
flagALRT += LFLAG;
break;
case 'r':
flagALRT += RFLAG;
break;
case 't':
flagALRT += TFLAG;
break;
case '?': //Checks if there is an unknown flag
(void)fprintf(stderr, "Usage: %s [-alrt] [file ...]\n", argv[0]);
exit(EXIT_FAILURE);
}
}
//Checks if it's the current directory input
if( argc == optind )
{
size = buildFileInfoTable( "." , &table ); //Builds table in current
displayFileInfo(table, size, flagALRT); //Displays all the file info
free(table); //Frees up the table
}
//Checks of specific file or files
for(index = optind; index < argc; index++)
{
size = buildFileInfoTable(argv[index], &table); //Checks multiple files
displayFileInfo(table, size, flagALRT); //Display info about file
free(table); //Frees up the table
}
return ( 0 ); /* Returns 0 if sucessfully executed */
}
int main( int argc, char *argv[] ){
unsigned int displayMode;
int entries;
struct fileInfo ** table_ptr =\
(struct fileInfo**) malloc(sizeof(struct fileInfo**));
/* Check if allocation is successful*/
if (table_ptr == NULL) {
perror(STR_ALLOC_ERR);
exit(1);
}
*table_ptr = (struct fileInfo*) malloc(sizeof(struct fileInfo*));
/* Check if allocation is successful*/
if (*table_ptr == NULL) {
perror(STR_ALLOC_ERR);
exit(1);
}
// Set display mode
displayMode = setDisplayMode(argc, argv);
/* Check for error flag of display mode*/
if (displayMode & ERR_FLAG) {
(void) fprintf(stderr, STR_USAGE, argv[0]);
exit(1);
}
if (argv[optind] == NULL) { // No files specified in command line
// Build the file info table and the number of entries
entries = buildFileInfoTable(".", table_ptr);
// Display the file info
displayFileInfo(*table_ptr, entries, displayMode);
free(*table_ptr);
} else { // files specified in command line
while (argv[optind] != NULL) { // Keeps reading multiple files
entries = buildFileInfoTable(argv[optind++], table_ptr);
displayFileInfo(*table_ptr, entries, displayMode);
free(*table_ptr);
}
}
free(table_ptr);
return 0;
}
