ATF_TC_BODY(append_ap, tc)
{
check_append(append_ap_aux);
}
ATF_TC_BODY(append_fmt, tc)
{
check_append(atf_dynstr_append_fmt);
}
/*
* Do the command
*/
int do_command(char **args, int in, int out, int pipe, int block) {
char *input_filename, *output_filename;
// Check for redirected input
int input = redirect_input(args, &input_filename);
switch(input) {
case -1:
printf("Syntax error!\n");
return -1;
break;
case 0:
break;
case 1:
printf("Redirecting input from: %s\n", input_filename);
break;
}
// check for append
int append = check_append(args, &output_filename);
// Check for redirected output
int output = redirect_output(args, &output_filename);
switch(append) {
case -1:
printf("Syntax error!\n");
return -1;
break;
case 0:
break;
case 1:
printf("Redirecting and appending output to: %s\n", output_filename);
break;
}
switch(output) {
case -1:
printf("Syntax error!\n");
return -1;
break;
case 0:
break;
case 1:
printf("Redirecting output to: %s\n", output_filename);
break;
}
int result;
pid_t child_id;
// Fork the child process
child_id = fork();
// Check for errors in fork()
switch(child_id) {
case EAGAIN:
perror("Error EAGAIN: ");
return child_id;
case ENOMEM:
perror("Error ENOMEM: ");
return child_id;
}
if(child_id == 0) {
// Set up redirection in the child process
if(out != 1) {
dup2(out, 1);
close(out);
}
if(in != 0) {
dup2(in, 0);
close(in);
}
if(input)
freopen(input_filename, "r", stdin);
if(output)
freopen(output_filename, "w+", stdout);
if(append)
freopen(output_filename, "a", stdout);
result = execvp(args[0], args);
exit(1);
}else {
return child_id;
}
return result;
}
