int main(int argc, char * argv[]) {
char result[25];
get_command_path("casperjs", result);
printf("\"%s\"", result);
}
void run_command_str(char** arr_words, int num_words, int out_fd, int in_fd) {
int saved_stdout = dup(STDOUT_FILENO);
int saved_stdin = dup(STDIN_FILENO);
if (in_fd != -1)
{
if (dup2(in_fd, STDIN_FILENO) == -1)
{
perror("dup2 on pipe/redirection into stdin: "); // now close pipe
//exit(EXIT_FAILURE);
}
}
if (dup2(out_fd, STDOUT_FILENO) == -1)
{
perror("dup2 on pipe/redirection into stdout: ");
//exit(EXIT_FAILURE);
}
char* command_file = get_command_path(arr_words[0]);
if (command_file == NULL) {
return;
}
char* params[num_words - 1 + 2]; // num_words minus command name plus command file and \0
params[0] = command_file;
params[num_words] = NULL;
int c;
for(c = 1; c < num_words; c++) {
params[c] = arr_words[c];
}
int f_val = fork();
switch(f_val) {
case 0:
{
if (execve(command_file, params, NULL) == -1) {
perror("execvp: ");
//exit(EXIT_FAILURE);
}
exit(EXIT_SUCCESS);
break;
}
case -1:
{
perror("fork: ");
exit(EXIT_FAILURE);
break;
}
default:
{
wait(NULL);
if (dup2(saved_stdout, STDOUT_FILENO) == -1)
{
perror("dup2 on pipe/redirection into stdout: ");
//exit(EXIT_FAILURE);
}
if (in_fd != -1)
{
if (dup2(saved_stdin, STDIN_FILENO) == -1)
{
perror("dup2 on pipe/redirection into stdin: "); // now close pipe
//exit(EXIT_FAILURE);
}
}
break;
}
}
}
