static void parse(char *line)
{
char *argv[ARGV_MAX];
int argc;
char *tmp;
int len;
redirect_map_t map;
argc = 0;
tmp = line;
len = strlen(line);
if (line[len - 1] == '\n')
line[len - 1] = 0;
if (parse_redirects(line, &map) < 0)
return;
for (;;) {
/* Ignore leading whitespace.
*/
while (*tmp && isspace(*tmp))
tmp++;
if (!*tmp)
break;
argv[argc++] = tmp;
/* Token is everything up to trailing whitespace.
*/
while (*tmp && !isspace(*tmp))
tmp++;
if (!*tmp)
break;
/* Null-terminate token.
*/
*tmp++ = 0;
}
argv[argc] = NULL;
if (!argc)
return;
execute(argc, argv, &map);
}
int parse_cmd(char* cmd, run_params* par, run_params* parent_par, int wait) {
//printf("*** %s ***\n", cmd);
int pos, i;
int return_val = 0;
char* cmd_itself = (char*)malloc(sizeof(char) * MAX_CMD_LEN);
char* input = (char*)malloc(sizeof(char) * MAX_PATH_LEN);
char* output = (char*)malloc(sizeof(char) * MAX_PATH_LEN);
char* err_output = (char*)malloc(sizeof(char) * MAX_PATH_LEN);
int out_append = 0;
for (i = 0; i < MAX_PATH_LEN; i++) {
input[i] = '\0';
output[i] = '\0';
err_output[i] = '\0';
}
char** args = (char**)malloc(sizeof(char*) * MAX_ARGC);
char* arg = (char*)malloc(sizeof(char) * MAX_PARAM_LEN);
int argc = 0;
pos = 0;
int ret;
ret = fill_string(cmd, &pos, cmd_itself);
if (ret != 0) {
return_val = 0; // empty command
goto end;
}
while (1) {
ret = fill_string(cmd, &pos, arg);
if (ret != 0) break;
ret = parse_redirects(cmd, &pos, arg, input, output, err_output, &out_append);
if (ret == 0) {
continue;
}
else if (ret == 1) {
break;
}
else {
if (argc >= MAX_ARGC) {
return_val = 2;
goto end;
}
args[argc] = arg;
argc++;
arg = (char*)malloc(sizeof(char) * MAX_PARAM_LEN);
}
}
run_params* nParams = make_params(par, input, output, err_output, out_append, args, argc, cmd_itself);
if (nParams == NULL) return 3;
if (strcmp(cmd_itself, "exit") == 0) {
if (par->secret_params == 2) {
return 1;
}
if (par->secret_params == 1) {
par->in->autoclose = 1;
par->err->autoclose = 1;
par->out->autoclose = 1;
c_run((LPTHREAD_START_ROUTINE)(c_exit), nParams, wait);
}
}
else if (strcmp(cmd_itself, "dir") == 0) {
c_run((LPTHREAD_START_ROUTINE)(dir), nParams, wait);
}
else if (strcmp(cmd_itself, "echo") == 0) {
c_run((LPTHREAD_START_ROUTINE)(echo), nParams, wait);
}
else if (strcmp(cmd_itself, "scan") == 0) {
c_run((LPTHREAD_START_ROUTINE)(scan), nParams, wait);
}
else if (strcmp(cmd_itself, "rand") == 0) {
c_run((LPTHREAD_START_ROUTINE)(random), nParams, wait);
}
else if (strcmp(cmd_itself, "cd") == 0) {
cd(nParams, parent_par);
}
else if (strcmp(cmd_itself, "tree") == 0) {
c_run((LPTHREAD_START_ROUTINE)(tree), nParams, wait);
}
else if (strcmp(cmd_itself, "pipe") == 0) {
c_run((LPTHREAD_START_ROUTINE)(c_pipe), nParams, wait);
}
else if (strcmp(cmd_itself, "type") == 0) {
c_run((LPTHREAD_START_ROUTINE)(type), nParams, wait);
}
else if (strcmp(cmd_itself, "info") == 0) {
c_run((LPTHREAD_START_ROUTINE)(info), nParams, wait);
}
else if (strcmp(cmd_itself, "rm") == 0 || strcmp(cmd_itself, "rd") == 0) {
c_run((LPTHREAD_START_ROUTINE)(rm), nParams, wait);
}
else if (strcmp(cmd_itself, "sort") == 0) {
c_run((LPTHREAD_START_ROUTINE)(sort), nParams, wait);
}
else if (strcmp(cmd_itself, "mkdir") == 0 || strcmp(cmd_itself, "md") == 0) {
c_run((LPTHREAD_START_ROUTINE)(mkdir), nParams, wait);
}
else if (strcmp(cmd_itself, "freq") == 0) {
c_run((LPTHREAD_START_ROUTINE)(freq), nParams, wait);
}
else if (strcmp(cmd_itself, "wc") == 0) {
c_run((LPTHREAD_START_ROUTINE)(wc), nParams, wait);
}
else if (strcmp(cmd_itself, "cmd") == 0) {
nParams->secret_params = 2;
c_run((LPTHREAD_START_ROUTINE)(c_cmd_run), nParams, wait);
}
else {
c_run((LPTHREAD_START_ROUTINE)(c_non_existent), nParams, wait);
}
end:
return return_val;
}