print.c

#include "parse.h"
#include <stdio.h>
#include <stdlib.h>

static int print_process(process *pr) {

    int index = 0;

    if (pr->program_name == NULL) {
        return -1;
    }

    printf("* program = %s\n", pr->program_name);

    if (pr->argument_list != NULL) {
        while (pr->argument_list[index] != NULL) {
            printf("  - arg[ %d ] = %s\n", index, pr->argument_list[index]);
            index++;
        }
    }

    if (pr->input_redirection != NULL) {
        printf("  - input redirection = %s\n", pr->input_redirection);
    }

    if (pr->output_redirection != NULL)
        printf("  - output redirection = %s [ %s ]\n",
               pr->output_redirection,
               pr->output_option == TRUNC ? "trunc" : "append");

    return 0;
}

void print_job_list(job *job_list) {
    int index;
    job *jb;
    process *pr;

    for (index = 0, jb = job_list; jb != NULL; jb = jb->next, ++index) {
        printf("id %d [ %s ]\n", index,
               jb->mode == FOREGROUND ? "foreground" : "background");

        for (pr = jb->process_list; pr != NULL; pr = pr->next) {
            if (print_process(pr) < 0) {
                exit(EXIT_FAILURE);
            }
            if (jb->next != NULL) {
                printf("\n");
            }
        }
    }
}