void handleChild(char *line) {
char** options = getOptionsFromLine(line);
int success = executeCommand(options);
freeOptions(options);
if (!success) perror("execv");
exit(success ? EXIT_SUCCESS : EXIT_FAILURE);
}
void terminateProgram(int info_fd, int log_fd, options* opt)
{
// Close info file, SMC and clear resources
CHECK_ERROR( CloseFile(info_fd) );
CHECK_ERROR( CloseFile(log_fd) );
smcClose();
freeOptions(opt);
}
int parse_options(int argc, char *argv[])
{
/*
* parses command line options
*/
int j;
static struct option longOpts[] = {
// name, has_arg, flag, val
{"help", 0, 0, 'h'},
{"version", 0, 0, 'v'},
{0, 0, 0, 0}
};
OPT_ASCII = 0; // sort by using locale collation order
OPT_IGNORE_CASE = 0; // default is case sensitive
OPT_INFO = 0; // no info by default
OPT_MODIFICATION = 0; // sort by last modification time
OPT_MORE_INFO = 0;
OPT_NATURAL_SORT = 0; // natural sort
OPT_ORDER = 0; // default order (directories first)
OPT_RANDOM = 0; // random sort order
OPT_REVERSE = 1; // default (1) is normal order, use -1 for reverse order.
OPT_VERSION = 0; // no version information by default
// empty string lists for inclusion and exclusion of dirs
OPT_INCL_DIRS = newStringList();
if (!OPT_INCL_DIRS)
{
myerror("Could not create stringList!");
return -1;
}
OPT_INCL_DIRS_REC = newStringList();
if (!OPT_INCL_DIRS_REC)
{
myerror("Could not create stringList!");
freeOptions();
return -1;
}
OPT_EXCL_DIRS = newStringList();
if (!OPT_EXCL_DIRS)
{
myerror("Could not create stringList!");
freeOptions();
return -1;
}
OPT_EXCL_DIRS_REC = newStringList();
if (!OPT_EXCL_DIRS_REC)
{
myerror("Could not create stringList!");
freeOptions();
return -1;
}
// empty string list for to be ignored prefixes
OPT_IGNORE_PREFIXES_LIST = newStringList();
if (!OPT_IGNORE_PREFIXES_LIST)
{
myerror("Could not create stringList!");
freeOptions();
return -1;
}
opterr = 0;
while
(
-1 != j = getopt_long(argc, argv, "imvhco:lrRnd:D:x:X:I:ta", longOpts, 0)
)
{
switch (j) {
case 'a':
OPT_ASCII = 1;
break;
case 'c':
OPT_IGNORE_CASE = 1;
break;
case 'h':
OPT_HELP = 1;
break;
case 'i':
OPT_INFO = 1;
break;
case 'm':
OPT_MORE_INFO = 1;
break;
case 'l':
OPT_LIST = 1;
break;
case 'o':
switch (optarg[0]) {
case 'd':
OPT_ORDER = 0;
break;
case 'f':
OPT_ORDER = 1;
break;
case 'a':
OPT_ORDER = 2;
break;
default:
myerror("Unknown flag '%c' for option 'o'.", optarg[0]);
myerror("Use -h for more help.");
freeOptions();
return -1;
}
break;
case 'd':
if (addDirPathToStringList(
OPT_INCL_DIRS, (const char (*)[PATH_MAX + 1]) optarg
))
{
myerror("Could not add directory path to dirPathList");
freeOptions();
return -1;
}
break;
case 'D':
if (addDirPathToStringList(
OPT_INCL_DIRS_REC, (const char (*)[PATH_MAX + 1]) optarg
))
{
myerror("Could not add directory path to string list");
freeOptions();
return -1;
}
break;
case 'x':
if (addDirPathToStringList(
OPT_EXCL_DIRS, (const char (*)[PATH_MAX + 1]) optarg
))
{
myerror("Could not add directory path to string list");
freeOptions();
return -1;
}
break;
case 'X':
if (addDirPathToStringList(
OPT_EXCL_DIRS_REC, (const char (*)[PATH_MAX + 1]) optarg
))
{
myerror("Could not add directory path to string list");
freeOptions();
return -1;
}
break;
case 'I':
if (addStringToStringList(OPT_IGNORE_PREFIXES_LIST, optarg))
{
myerror("Could not add directory path to string list");
freeOptions();
return -1;
}
break;
case 'n':
OPT_NATURAL_SORT = 1;
break;
case 'r':
OPT_REVERSE = -1;
break;
case 'R':
OPT_RANDOM = 1;
break;
case 't':
OPT_MODIFICATION = 1;
break;
case 'v':
OPT_VERSION = 1;
break;
default:
myerror("Unknown option '%c'.", optopt);
myerror("Use -h for more help.");
freeOptions();
return -1;
}
}
return 0;
}
