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#include "tar.h"
bool args_parse(int argc, char **argv, t_args *args)
{
int opt;
int action_counter = 0;
args->flags = 0;
args->archive_name = NULL;
args->files = NULL;
while ((opt = getopt(argc, argv, "Acdtruxvf:")) != -1)
{
switch (opt)
{
case 'A': args->action = ACTION_CONCAT; break;
case 'c': args->action = ACTION_CREATE; break;
case 'd': args->action = ACTION_DIFF; break;
case 't': args->action = ACTION_LIST; break;
case 'r': args->action = ACTION_APPEND; break;
case 'u': args->action = ACTION_UPDATE; break;
case 'x': args->action = ACTION_EXTRACT; break;
case 'v': args->flags |= FLAG_VERBOSE; break;
case 'f':
args->flags |= FLAG_FILE;
args->archive_name = optarg;
break;
default:
return false;
}
if (strchr("Acdtrux", opt) != NULL)
action_counter++;
}
if (action_counter != 1)
{
fprintf(stderr, "%s: You way not specify more than one '-Acdtrux' option\n", argv[0]);
return false;
}
if (!(args->flags & FLAG_FILE) && isatty(STDOUT_FILENO))
{
fprintf(stderr, "%s: Refusing to write archive contents to terminal (missing -f option?)\n", argv[0]);
return false;
}
args->files = argv + optind;
return true;
}
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